[feature] Inherit resource limits from cgroups (#1336)

When GTS is running in a container runtime which has configured CPU or
memory limits or under an init system that uses cgroups to impose CPU
and memory limits the values the Go runtime sees for GOMAXPROCS and
GOMEMLIMIT are still based on the host resources, not the cgroup.

At least for the throttling middlewares which use GOMAXPROCS to
configure their queue size, this can result in GTS running with values
too big compared to the resources that will actuall be available to it.

This introduces 2 dependencies which can pick up resource contraints
from the current cgroup and tune the Go runtime accordingly. This should
result in the different queues being appropriately sized and in general
more predictable performance. These dependencies are a no-op on
non-Linux systems or if running in a cgroup that doesn't set a limit on
CPU or memory.

The automatic tuning of GOMEMLIMIT can be disabled by either explicitly
setting GOMEMLIMIT yourself or by setting AUTOMEMLIMIT=off. The
automatic tuning of GOMAXPROCS can similarly be counteracted by setting
GOMAXPROCS yourself.

17 files changed, 6725 insertions, 0 deletions

diff --git a/vendor/github.com/containerd/cgroups/v2/cpu.go b/vendor/github.com/containerd/cgroups/v2/cpu.go
new file mode 100644
index 000000000..65282ff08
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/cpu.go
@@ -0,0 +1,83 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+import (
+	"math"
+	"strconv"
+	"strings"
+)
+
+type CPUMax string
+
+func NewCPUMax(quota *int64, period *uint64) CPUMax {
+	max := "max"
+	if quota != nil {
+		max = strconv.FormatInt(*quota, 10)
+	}
+	return CPUMax(strings.Join([]string{max, strconv.FormatUint(*period, 10)}, " "))
+}
+
+type CPU struct {
+	Weight *uint64
+	Max    CPUMax
+	Cpus   string
+	Mems   string
+}
+
+func (c CPUMax) extractQuotaAndPeriod() (int64, uint64) {
+	var (
+		quota  int64
+		period uint64
+	)
+	values := strings.Split(string(c), " ")
+	if values[0] == "max" {
+		quota = math.MaxInt64
+	} else {
+		quota, _ = strconv.ParseInt(values[0], 10, 64)
+	}
+	period, _ = strconv.ParseUint(values[1], 10, 64)
+	return quota, period
+}
+
+func (r *CPU) Values() (o []Value) {
+	if r.Weight != nil {
+		o = append(o, Value{
+			filename: "cpu.weight",
+			value:    *r.Weight,
+		})
+	}
+	if r.Max != "" {
+		o = append(o, Value{
+			filename: "cpu.max",
+			value:    r.Max,
+		})
+	}
+	if r.Cpus != "" {
+		o = append(o, Value{
+			filename: "cpuset.cpus",
+			value:    r.Cpus,
+		})
+	}
+	if r.Mems != "" {
+		o = append(o, Value{
+			filename: "cpuset.mems",
+			value:    r.Mems,
+		})
+	}
+	return o
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/devicefilter.go b/vendor/github.com/containerd/cgroups/v2/devicefilter.go
new file mode 100644
index 000000000..0882036c2
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/devicefilter.go
@@ -0,0 +1,200 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+// Devicefilter containes eBPF device filter program
+//
+// The implementation is based on https://github.com/containers/crun/blob/0.10.2/src/libcrun/ebpf.c
+//
+// Although ebpf.c is originally licensed under LGPL-3.0-or-later, the author (Giuseppe Scrivano)
+// agreed to relicense the file in Apache License 2.0: https://github.com/opencontainers/runc/issues/2144#issuecomment-543116397
+//
+// This particular Go implementation based on runc version
+// https://github.com/opencontainers/runc/blob/master/libcontainer/cgroups/ebpf/devicefilter/devicefilter.go
+
+package v2
+
+import (
+	"errors"
+	"fmt"
+	"math"
+
+	"github.com/cilium/ebpf/asm"
+	"github.com/opencontainers/runtime-spec/specs-go"
+	"golang.org/x/sys/unix"
+)
+
+const (
+	// license string format is same as kernel MODULE_LICENSE macro
+	license = "Apache"
+)
+
+// DeviceFilter returns eBPF device filter program and its license string
+func DeviceFilter(devices []specs.LinuxDeviceCgroup) (asm.Instructions, string, error) {
+	p := &program{}
+	p.init()
+	for i := len(devices) - 1; i >= 0; i-- {
+		if err := p.appendDevice(devices[i]); err != nil {
+			return nil, "", err
+		}
+	}
+	insts, err := p.finalize()
+	return insts, license, err
+}
+
+type program struct {
+	insts       asm.Instructions
+	hasWildCard bool
+	blockID     int
+}
+
+func (p *program) init() {
+	// struct bpf_cgroup_dev_ctx: https://elixir.bootlin.com/linux/v5.3.6/source/include/uapi/linux/bpf.h#L3423
+	/*
+		u32 access_type
+		u32 major
+		u32 minor
+	*/
+	// R2 <- type (lower 16 bit of u32 access_type at R1[0])
+	p.insts = append(p.insts,
+		asm.LoadMem(asm.R2, asm.R1, 0, asm.Half))
+
+	// R3 <- access (upper 16 bit of u32 access_type at R1[0])
+	p.insts = append(p.insts,
+		asm.LoadMem(asm.R3, asm.R1, 0, asm.Word),
+		// RSh: bitwise shift right
+		asm.RSh.Imm32(asm.R3, 16))
+
+	// R4 <- major (u32 major at R1[4])
+	p.insts = append(p.insts,
+		asm.LoadMem(asm.R4, asm.R1, 4, asm.Word))
+
+	// R5 <- minor (u32 minor at R1[8])
+	p.insts = append(p.insts,
+		asm.LoadMem(asm.R5, asm.R1, 8, asm.Word))
+}
+
+// appendDevice needs to be called from the last element of OCI linux.resources.devices to the head element.
+func (p *program) appendDevice(dev specs.LinuxDeviceCgroup) error {
+	if p.blockID < 0 {
+		return errors.New("the program is finalized")
+	}
+	if p.hasWildCard {
+		// All entries after wildcard entry are ignored
+		return nil
+	}
+
+	bpfType := int32(-1)
+	hasType := true
+	switch dev.Type {
+	case string('c'):
+		bpfType = int32(unix.BPF_DEVCG_DEV_CHAR)
+	case string('b'):
+		bpfType = int32(unix.BPF_DEVCG_DEV_BLOCK)
+	case string('a'):
+		hasType = false
+	default:
+		// if not specified in OCI json, typ is set to DeviceTypeAll
+		return fmt.Errorf("invalid DeviceType %q", dev.Type)
+	}
+	if *dev.Major > math.MaxUint32 {
+		return fmt.Errorf("invalid major %d", *dev.Major)
+	}
+	if *dev.Minor > math.MaxUint32 {
+		return fmt.Errorf("invalid minor %d", *dev.Major)
+	}
+	hasMajor := *dev.Major >= 0 // if not specified in OCI json, major is set to -1
+	hasMinor := *dev.Minor >= 0
+	bpfAccess := int32(0)
+	for _, r := range dev.Access {
+		switch r {
+		case 'r':
+			bpfAccess |= unix.BPF_DEVCG_ACC_READ
+		case 'w':
+			bpfAccess |= unix.BPF_DEVCG_ACC_WRITE
+		case 'm':
+			bpfAccess |= unix.BPF_DEVCG_ACC_MKNOD
+		default:
+			return fmt.Errorf("unknown device access %v", r)
+		}
+	}
+	// If the access is rwm, skip the check.
+	hasAccess := bpfAccess != (unix.BPF_DEVCG_ACC_READ | unix.BPF_DEVCG_ACC_WRITE | unix.BPF_DEVCG_ACC_MKNOD)
+
+	blockSym := fmt.Sprintf("block-%d", p.blockID)
+	nextBlockSym := fmt.Sprintf("block-%d", p.blockID+1)
+	prevBlockLastIdx := len(p.insts) - 1
+	if hasType {
+		p.insts = append(p.insts,
+			// if (R2 != bpfType) goto next
+			asm.JNE.Imm(asm.R2, bpfType, nextBlockSym),
+		)
+	}
+	if hasAccess {
+		p.insts = append(p.insts,
+			// if (R3 & bpfAccess == 0 /* use R1 as a temp var */) goto next
+			asm.Mov.Reg32(asm.R1, asm.R3),
+			asm.And.Imm32(asm.R1, bpfAccess),
+			asm.JEq.Imm(asm.R1, 0, nextBlockSym),
+		)
+	}
+	if hasMajor {
+		p.insts = append(p.insts,
+			// if (R4 != major) goto next
+			asm.JNE.Imm(asm.R4, int32(*dev.Major), nextBlockSym),
+		)
+	}
+	if hasMinor {
+		p.insts = append(p.insts,
+			// if (R5 != minor) goto next
+			asm.JNE.Imm(asm.R5, int32(*dev.Minor), nextBlockSym),
+		)
+	}
+	if !hasType && !hasAccess && !hasMajor && !hasMinor {
+		p.hasWildCard = true
+	}
+	p.insts = append(p.insts, acceptBlock(dev.Allow)...)
+	// set blockSym to the first instruction we added in this iteration
+	p.insts[prevBlockLastIdx+1] = p.insts[prevBlockLastIdx+1].Sym(blockSym)
+	p.blockID++
+	return nil
+}
+
+func (p *program) finalize() (asm.Instructions, error) {
+	if p.hasWildCard {
+		// acceptBlock with asm.Return() is already inserted
+		return p.insts, nil
+	}
+	blockSym := fmt.Sprintf("block-%d", p.blockID)
+	p.insts = append(p.insts,
+		// R0 <- 0
+		asm.Mov.Imm32(asm.R0, 0).Sym(blockSym),
+		asm.Return(),
+	)
+	p.blockID = -1
+	return p.insts, nil
+}
+
+func acceptBlock(accept bool) asm.Instructions {
+	v := int32(0)
+	if accept {
+		v = 1
+	}
+	return []asm.Instruction{
+		// R0 <- v
+		asm.Mov.Imm32(asm.R0, v),
+		asm.Return(),
+	}
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/ebpf.go b/vendor/github.com/containerd/cgroups/v2/ebpf.go
new file mode 100644
index 000000000..45bf5f99e
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/ebpf.go
@@ -0,0 +1,96 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+import (
+	"fmt"
+
+	"github.com/cilium/ebpf"
+	"github.com/cilium/ebpf/asm"
+	"github.com/cilium/ebpf/link"
+	"github.com/opencontainers/runtime-spec/specs-go"
+	"golang.org/x/sys/unix"
+)
+
+// LoadAttachCgroupDeviceFilter installs eBPF device filter program to /sys/fs/cgroup/<foo> directory.
+//
+// Requires the system to be running in cgroup2 unified-mode with kernel >= 4.15 .
+//
+// https://github.com/torvalds/linux/commit/ebc614f687369f9df99828572b1d85a7c2de3d92
+func LoadAttachCgroupDeviceFilter(insts asm.Instructions, license string, dirFD int) (func() error, error) {
+	nilCloser := func() error {
+		return nil
+	}
+	spec := &ebpf.ProgramSpec{
+		Type:         ebpf.CGroupDevice,
+		Instructions: insts,
+		License:      license,
+	}
+	prog, err := ebpf.NewProgram(spec)
+	if err != nil {
+		return nilCloser, err
+	}
+	err = link.RawAttachProgram(link.RawAttachProgramOptions{
+		Target:  dirFD,
+		Program: prog,
+		Attach:  ebpf.AttachCGroupDevice,
+		Flags:   unix.BPF_F_ALLOW_MULTI,
+	})
+	if err != nil {
+		return nilCloser, fmt.Errorf("failed to call BPF_PROG_ATTACH (BPF_CGROUP_DEVICE, BPF_F_ALLOW_MULTI): %w", err)
+	}
+	closer := func() error {
+		err = link.RawDetachProgram(link.RawDetachProgramOptions{
+			Target:  dirFD,
+			Program: prog,
+			Attach:  ebpf.AttachCGroupDevice,
+		})
+		if err != nil {
+			return fmt.Errorf("failed to call BPF_PROG_DETACH (BPF_CGROUP_DEVICE): %w", err)
+		}
+		return nil
+	}
+	return closer, nil
+}
+
+func isRWM(cgroupPermissions string) bool {
+	r := false
+	w := false
+	m := false
+	for _, rn := range cgroupPermissions {
+		switch rn {
+		case 'r':
+			r = true
+		case 'w':
+			w = true
+		case 'm':
+			m = true
+		}
+	}
+	return r && w && m
+}
+
+// the logic is from runc
+// https://github.com/opencontainers/runc/blob/master/libcontainer/cgroups/fs/devices_v2.go#L44
+func canSkipEBPFError(devices []specs.LinuxDeviceCgroup) bool {
+	for _, dev := range devices {
+		if dev.Allow || !isRWM(dev.Access) {
+			return false
+		}
+	}
+	return true
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/errors.go b/vendor/github.com/containerd/cgroups/v2/errors.go
new file mode 100644
index 000000000..eeae362b2
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/errors.go
@@ -0,0 +1,26 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+import (
+	"errors"
+)
+
+var (
+	ErrInvalidFormat    = errors.New("cgroups: parsing file with invalid format failed")
+	ErrInvalidGroupPath = errors.New("cgroups: invalid group path")
+)
diff --git a/vendor/github.com/containerd/cgroups/v2/hugetlb.go b/vendor/github.com/containerd/cgroups/v2/hugetlb.go
new file mode 100644
index 000000000..16b35bd78
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/hugetlb.go
@@ -0,0 +1,37 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+import "strings"
+
+type HugeTlb []HugeTlbEntry
+
+type HugeTlbEntry struct {
+	HugePageSize string
+	Limit        uint64
+}
+
+func (r *HugeTlb) Values() (o []Value) {
+	for _, e := range *r {
+		o = append(o, Value{
+			filename: strings.Join([]string{"hugetlb", e.HugePageSize, "max"}, "."),
+			value:    e.Limit,
+		})
+	}
+
+	return o
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/io.go b/vendor/github.com/containerd/cgroups/v2/io.go
new file mode 100644
index 000000000..70078d576
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/io.go
@@ -0,0 +1,64 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+import "fmt"
+
+type IOType string
+
+const (
+	ReadBPS   IOType = "rbps"
+	WriteBPS  IOType = "wbps"
+	ReadIOPS  IOType = "riops"
+	WriteIOPS IOType = "wiops"
+)
+
+type BFQ struct {
+	Weight uint16
+}
+
+type Entry struct {
+	Type  IOType
+	Major int64
+	Minor int64
+	Rate  uint64
+}
+
+func (e Entry) String() string {
+	return fmt.Sprintf("%d:%d %s=%d", e.Major, e.Minor, e.Type, e.Rate)
+}
+
+type IO struct {
+	BFQ BFQ
+	Max []Entry
+}
+
+func (i *IO) Values() (o []Value) {
+	if i.BFQ.Weight != 0 {
+		o = append(o, Value{
+			filename: "io.bfq.weight",
+			value:    i.BFQ.Weight,
+		})
+	}
+	for _, e := range i.Max {
+		o = append(o, Value{
+			filename: "io.max",
+			value:    e.String(),
+		})
+	}
+	return o
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/manager.go b/vendor/github.com/containerd/cgroups/v2/manager.go
new file mode 100644
index 000000000..1f017509f
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/manager.go
@@ -0,0 +1,863 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+import (
+	"bufio"
+	"context"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"math"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"syscall"
+	"time"
+
+	"github.com/containerd/cgroups/v2/stats"
+
+	systemdDbus "github.com/coreos/go-systemd/v22/dbus"
+	"github.com/godbus/dbus/v5"
+	"github.com/opencontainers/runtime-spec/specs-go"
+	"github.com/sirupsen/logrus"
+	"golang.org/x/sys/unix"
+)
+
+const (
+	subtreeControl     = "cgroup.subtree_control"
+	controllersFile    = "cgroup.controllers"
+	defaultCgroup2Path = "/sys/fs/cgroup"
+	defaultSlice       = "system.slice"
+)
+
+var (
+	canDelegate bool
+)
+
+type Event struct {
+	Low     uint64
+	High    uint64
+	Max     uint64
+	OOM     uint64
+	OOMKill uint64
+}
+
+// Resources for a cgroups v2 unified hierarchy
+type Resources struct {
+	CPU     *CPU
+	Memory  *Memory
+	Pids    *Pids
+	IO      *IO
+	RDMA    *RDMA
+	HugeTlb *HugeTlb
+	// When len(Devices) is zero, devices are not controlled
+	Devices []specs.LinuxDeviceCgroup
+}
+
+// Values returns the raw filenames and values that
+// can be written to the unified hierarchy
+func (r *Resources) Values() (o []Value) {
+	if r.CPU != nil {
+		o = append(o, r.CPU.Values()...)
+	}
+	if r.Memory != nil {
+		o = append(o, r.Memory.Values()...)
+	}
+	if r.Pids != nil {
+		o = append(o, r.Pids.Values()...)
+	}
+	if r.IO != nil {
+		o = append(o, r.IO.Values()...)
+	}
+	if r.RDMA != nil {
+		o = append(o, r.RDMA.Values()...)
+	}
+	if r.HugeTlb != nil {
+		o = append(o, r.HugeTlb.Values()...)
+	}
+	return o
+}
+
+// EnabledControllers returns the list of all not nil resource controllers
+func (r *Resources) EnabledControllers() (c []string) {
+	if r.CPU != nil {
+		c = append(c, "cpu")
+		c = append(c, "cpuset")
+	}
+	if r.Memory != nil {
+		c = append(c, "memory")
+	}
+	if r.Pids != nil {
+		c = append(c, "pids")
+	}
+	if r.IO != nil {
+		c = append(c, "io")
+	}
+	if r.RDMA != nil {
+		c = append(c, "rdma")
+	}
+	if r.HugeTlb != nil {
+		c = append(c, "hugetlb")
+	}
+	return
+}
+
+// Value of a cgroup setting
+type Value struct {
+	filename string
+	value    interface{}
+}
+
+// write the value to the full, absolute path, of a unified hierarchy
+func (c *Value) write(path string, perm os.FileMode) error {
+	var data []byte
+	switch t := c.value.(type) {
+	case uint64:
+		data = []byte(strconv.FormatUint(t, 10))
+	case uint16:
+		data = []byte(strconv.FormatUint(uint64(t), 10))
+	case int64:
+		data = []byte(strconv.FormatInt(t, 10))
+	case []byte:
+		data = t
+	case string:
+		data = []byte(t)
+	case CPUMax:
+		data = []byte(t)
+	default:
+		return ErrInvalidFormat
+	}
+
+	// Retry writes on EINTR; see:
+	//    https://github.com/golang/go/issues/38033
+	for {
+		err := ioutil.WriteFile(
+			filepath.Join(path, c.filename),
+			data,
+			perm,
+		)
+		if err == nil {
+			return nil
+		} else if !errors.Is(err, syscall.EINTR) {
+			return err
+		}
+	}
+}
+
+func writeValues(path string, values []Value) error {
+	for _, o := range values {
+		if err := o.write(path, defaultFilePerm); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func NewManager(mountpoint string, group string, resources *Resources) (*Manager, error) {
+	if resources == nil {
+		return nil, errors.New("resources reference is nil")
+	}
+	if err := VerifyGroupPath(group); err != nil {
+		return nil, err
+	}
+	path := filepath.Join(mountpoint, group)
+	if err := os.MkdirAll(path, defaultDirPerm); err != nil {
+		return nil, err
+	}
+	m := Manager{
+		unifiedMountpoint: mountpoint,
+		path:              path,
+	}
+	if err := m.ToggleControllers(resources.EnabledControllers(), Enable); err != nil {
+		// clean up cgroup dir on failure
+		os.Remove(path)
+		return nil, err
+	}
+	if err := setResources(path, resources); err != nil {
+		os.Remove(path)
+		return nil, err
+	}
+	return &m, nil
+}
+
+func LoadManager(mountpoint string, group string) (*Manager, error) {
+	if err := VerifyGroupPath(group); err != nil {
+		return nil, err
+	}
+	path := filepath.Join(mountpoint, group)
+	return &Manager{
+		unifiedMountpoint: mountpoint,
+		path:              path,
+	}, nil
+}
+
+type Manager struct {
+	unifiedMountpoint string
+	path              string
+}
+
+func setResources(path string, resources *Resources) error {
+	if resources != nil {
+		if err := writeValues(path, resources.Values()); err != nil {
+			return err
+		}
+		if err := setDevices(path, resources.Devices); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (c *Manager) RootControllers() ([]string, error) {
+	b, err := ioutil.ReadFile(filepath.Join(c.unifiedMountpoint, controllersFile))
+	if err != nil {
+		return nil, err
+	}
+	return strings.Fields(string(b)), nil
+}
+
+func (c *Manager) Controllers() ([]string, error) {
+	b, err := ioutil.ReadFile(filepath.Join(c.path, controllersFile))
+	if err != nil {
+		return nil, err
+	}
+	return strings.Fields(string(b)), nil
+}
+
+func (c *Manager) Update(resources *Resources) error {
+	return setResources(c.path, resources)
+}
+
+type ControllerToggle int
+
+const (
+	Enable ControllerToggle = iota + 1
+	Disable
+)
+
+func toggleFunc(controllers []string, prefix string) []string {
+	out := make([]string, len(controllers))
+	for i, c := range controllers {
+		out[i] = prefix + c
+	}
+	return out
+}
+
+func (c *Manager) ToggleControllers(controllers []string, t ControllerToggle) error {
+	// when c.path is like /foo/bar/baz, the following files need to be written:
+	// * /sys/fs/cgroup/cgroup.subtree_control
+	// * /sys/fs/cgroup/foo/cgroup.subtree_control
+	// * /sys/fs/cgroup/foo/bar/cgroup.subtree_control
+	// Note that /sys/fs/cgroup/foo/bar/baz/cgroup.subtree_control does not need to be written.
+	split := strings.Split(c.path, "/")
+	var lastErr error
+	for i := range split {
+		f := strings.Join(split[:i], "/")
+		if !strings.HasPrefix(f, c.unifiedMountpoint) || f == c.path {
+			continue
+		}
+		filePath := filepath.Join(f, subtreeControl)
+		if err := c.writeSubtreeControl(filePath, controllers, t); err != nil {
+			// When running as rootless, the user may face EPERM on parent groups, but it is neglible when the
+			// controller is already written.
+			// So we only return the last error.
+			lastErr = fmt.Errorf("failed to write subtree controllers %+v to %q: %w", controllers, filePath, err)
+		} else {
+			lastErr = nil
+		}
+	}
+	return lastErr
+}
+
+func (c *Manager) writeSubtreeControl(filePath string, controllers []string, t ControllerToggle) error {
+	f, err := os.OpenFile(filePath, os.O_WRONLY, 0)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	switch t {
+	case Enable:
+		controllers = toggleFunc(controllers, "+")
+	case Disable:
+		controllers = toggleFunc(controllers, "-")
+	}
+	_, err = f.WriteString(strings.Join(controllers, " "))
+	return err
+}
+
+func (c *Manager) NewChild(name string, resources *Resources) (*Manager, error) {
+	if strings.HasPrefix(name, "/") {
+		return nil, errors.New("name must be relative")
+	}
+	path := filepath.Join(c.path, name)
+	if err := os.MkdirAll(path, defaultDirPerm); err != nil {
+		return nil, err
+	}
+	m := Manager{
+		unifiedMountpoint: c.unifiedMountpoint,
+		path:              path,
+	}
+	if resources != nil {
+		if err := m.ToggleControllers(resources.EnabledControllers(), Enable); err != nil {
+			// clean up cgroup dir on failure
+			os.Remove(path)
+			return nil, err
+		}
+	}
+	if err := setResources(path, resources); err != nil {
+		// clean up cgroup dir on failure
+		os.Remove(path)
+		return nil, err
+	}
+	return &m, nil
+}
+
+func (c *Manager) AddProc(pid uint64) error {
+	v := Value{
+		filename: cgroupProcs,
+		value:    pid,
+	}
+	return writeValues(c.path, []Value{v})
+}
+
+func (c *Manager) Delete() error {
+	return remove(c.path)
+}
+
+func (c *Manager) Procs(recursive bool) ([]uint64, error) {
+	var processes []uint64
+	err := filepath.Walk(c.path, func(p string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if !recursive && info.IsDir() {
+			if p == c.path {
+				return nil
+			}
+			return filepath.SkipDir
+		}
+		_, name := filepath.Split(p)
+		if name != cgroupProcs {
+			return nil
+		}
+		procs, err := parseCgroupProcsFile(p)
+		if err != nil {
+			return err
+		}
+		processes = append(processes, procs...)
+		return nil
+	})
+	return processes, err
+}
+
+var singleValueFiles = []string{
+	"pids.current",
+	"pids.max",
+}
+
+func (c *Manager) Stat() (*stats.Metrics, error) {
+	controllers, err := c.Controllers()
+	if err != nil {
+		return nil, err
+	}
+	out := make(map[string]interface{})
+	for _, controller := range controllers {
+		switch controller {
+		case "cpu", "memory":
+			if err := readKVStatsFile(c.path, controller+".stat", out); err != nil {
+				if os.IsNotExist(err) {
+					continue
+				}
+				return nil, err
+			}
+		}
+	}
+	for _, name := range singleValueFiles {
+		if err := readSingleFile(c.path, name, out); err != nil {
+			if os.IsNotExist(err) {
+				continue
+			}
+			return nil, err
+		}
+	}
+	memoryEvents := make(map[string]interface{})
+	if err := readKVStatsFile(c.path, "memory.events", memoryEvents); err != nil {
+		if !os.IsNotExist(err) {
+			return nil, err
+		}
+	}
+	var metrics stats.Metrics
+
+	metrics.Pids = &stats.PidsStat{
+		Current: getPidValue("pids.current", out),
+		Limit:   getPidValue("pids.max", out),
+	}
+	metrics.CPU = &stats.CPUStat{
+		UsageUsec:     getUint64Value("usage_usec", out),
+		UserUsec:      getUint64Value("user_usec", out),
+		SystemUsec:    getUint64Value("system_usec", out),
+		NrPeriods:     getUint64Value("nr_periods", out),
+		NrThrottled:   getUint64Value("nr_throttled", out),
+		ThrottledUsec: getUint64Value("throttled_usec", out),
+	}
+	metrics.Memory = &stats.MemoryStat{
+		Anon:                  getUint64Value("anon", out),
+		File:                  getUint64Value("file", out),
+		KernelStack:           getUint64Value("kernel_stack", out),
+		Slab:                  getUint64Value("slab", out),
+		Sock:                  getUint64Value("sock", out),
+		Shmem:                 getUint64Value("shmem", out),
+		FileMapped:            getUint64Value("file_mapped", out),
+		FileDirty:             getUint64Value("file_dirty", out),
+		FileWriteback:         getUint64Value("file_writeback", out),
+		AnonThp:               getUint64Value("anon_thp", out),
+		InactiveAnon:          getUint64Value("inactive_anon", out),
+		ActiveAnon:            getUint64Value("active_anon", out),
+		InactiveFile:          getUint64Value("inactive_file", out),
+		ActiveFile:            getUint64Value("active_file", out),
+		Unevictable:           getUint64Value("unevictable", out),
+		SlabReclaimable:       getUint64Value("slab_reclaimable", out),
+		SlabUnreclaimable:     getUint64Value("slab_unreclaimable", out),
+		Pgfault:               getUint64Value("pgfault", out),
+		Pgmajfault:            getUint64Value("pgmajfault", out),
+		WorkingsetRefault:     getUint64Value("workingset_refault", out),
+		WorkingsetActivate:    getUint64Value("workingset_activate", out),
+		WorkingsetNodereclaim: getUint64Value("workingset_nodereclaim", out),
+		Pgrefill:              getUint64Value("pgrefill", out),
+		Pgscan:                getUint64Value("pgscan", out),
+		Pgsteal:               getUint64Value("pgsteal", out),
+		Pgactivate:            getUint64Value("pgactivate", out),
+		Pgdeactivate:          getUint64Value("pgdeactivate", out),
+		Pglazyfree:            getUint64Value("pglazyfree", out),
+		Pglazyfreed:           getUint64Value("pglazyfreed", out),
+		ThpFaultAlloc:         getUint64Value("thp_fault_alloc", out),
+		ThpCollapseAlloc:      getUint64Value("thp_collapse_alloc", out),
+		Usage:                 getStatFileContentUint64(filepath.Join(c.path, "memory.current")),
+		UsageLimit:            getStatFileContentUint64(filepath.Join(c.path, "memory.max")),
+		SwapUsage:             getStatFileContentUint64(filepath.Join(c.path, "memory.swap.current")),
+		SwapLimit:             getStatFileContentUint64(filepath.Join(c.path, "memory.swap.max")),
+	}
+	if len(memoryEvents) > 0 {
+		metrics.MemoryEvents = &stats.MemoryEvents{
+			Low:     getUint64Value("low", memoryEvents),
+			High:    getUint64Value("high", memoryEvents),
+			Max:     getUint64Value("max", memoryEvents),
+			Oom:     getUint64Value("oom", memoryEvents),
+			OomKill: getUint64Value("oom_kill", memoryEvents),
+		}
+	}
+	metrics.Io = &stats.IOStat{Usage: readIoStats(c.path)}
+	metrics.Rdma = &stats.RdmaStat{
+		Current: rdmaStats(filepath.Join(c.path, "rdma.current")),
+		Limit:   rdmaStats(filepath.Join(c.path, "rdma.max")),
+	}
+	metrics.Hugetlb = readHugeTlbStats(c.path)
+
+	return &metrics, nil
+}
+
+func getUint64Value(key string, out map[string]interface{}) uint64 {
+	v, ok := out[key]
+	if !ok {
+		return 0
+	}
+	switch t := v.(type) {
+	case uint64:
+		return t
+	}
+	return 0
+}
+
+func getPidValue(key string, out map[string]interface{}) uint64 {
+	v, ok := out[key]
+	if !ok {
+		return 0
+	}
+	switch t := v.(type) {
+	case uint64:
+		return t
+	case string:
+		if t == "max" {
+			return math.MaxUint64
+		}
+	}
+	return 0
+}
+
+func readSingleFile(path string, file string, out map[string]interface{}) error {
+	f, err := os.Open(filepath.Join(path, file))
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	data, err := ioutil.ReadAll(f)
+	if err != nil {
+		return err
+	}
+	s := strings.TrimSpace(string(data))
+	v, err := parseUint(s, 10, 64)
+	if err != nil {
+		// if we cannot parse as a uint, parse as a string
+		out[file] = s
+		return nil
+	}
+	out[file] = v
+	return nil
+}
+
+func readKVStatsFile(path string, file string, out map[string]interface{}) error {
+	f, err := os.Open(filepath.Join(path, file))
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	s := bufio.NewScanner(f)
+	for s.Scan() {
+		name, value, err := parseKV(s.Text())
+		if err != nil {
+			return fmt.Errorf("error while parsing %s (line=%q): %w", filepath.Join(path, file), s.Text(), err)
+		}
+		out[name] = value
+	}
+	return s.Err()
+}
+
+func (c *Manager) Freeze() error {
+	return c.freeze(c.path, Frozen)
+}
+
+func (c *Manager) Thaw() error {
+	return c.freeze(c.path, Thawed)
+}
+
+func (c *Manager) freeze(path string, state State) error {
+	values := state.Values()
+	for {
+		if err := writeValues(path, values); err != nil {
+			return err
+		}
+		current, err := fetchState(path)
+		if err != nil {
+			return err
+		}
+		if current == state {
+			return nil
+		}
+		time.Sleep(1 * time.Millisecond)
+	}
+}
+
+func (c *Manager) isCgroupEmpty() bool {
+	// In case of any error we return true so that we exit and don't leak resources
+	out := make(map[string]interface{})
+	if err := readKVStatsFile(c.path, "cgroup.events", out); err != nil {
+		return true
+	}
+	if v, ok := out["populated"]; ok {
+		populated, ok := v.(uint64)
+		if !ok {
+			return true
+		}
+		return populated == 0
+	}
+	return true
+}
+
+// MemoryEventFD returns inotify file descriptor and 'memory.events' inotify watch descriptor
+func (c *Manager) MemoryEventFD() (int, uint32, error) {
+	fpath := filepath.Join(c.path, "memory.events")
+	fd, err := syscall.InotifyInit()
+	if err != nil {
+		return 0, 0, errors.New("failed to create inotify fd")
+	}
+	wd, err := syscall.InotifyAddWatch(fd, fpath, unix.IN_MODIFY)
+	if err != nil {
+		syscall.Close(fd)
+		return 0, 0, fmt.Errorf("failed to add inotify watch for %q: %w", fpath, err)
+	}
+	// monitor to detect process exit/cgroup deletion
+	evpath := filepath.Join(c.path, "cgroup.events")
+	if _, err = syscall.InotifyAddWatch(fd, evpath, unix.IN_MODIFY); err != nil {
+		syscall.Close(fd)
+		return 0, 0, fmt.Errorf("failed to add inotify watch for %q: %w", evpath, err)
+	}
+
+	return fd, uint32(wd), nil
+}
+
+func (c *Manager) EventChan() (<-chan Event, <-chan error) {
+	ec := make(chan Event)
+	errCh := make(chan error, 1)
+	go c.waitForEvents(ec, errCh)
+
+	return ec, errCh
+}
+
+func parseMemoryEvents(out map[string]interface{}) (Event, error) {
+	e := Event{}
+	if v, ok := out["high"]; ok {
+		e.High, ok = v.(uint64)
+		if !ok {
+			return Event{}, fmt.Errorf("cannot convert high to uint64: %+v", v)
+		}
+	}
+	if v, ok := out["low"]; ok {
+		e.Low, ok = v.(uint64)
+		if !ok {
+			return Event{}, fmt.Errorf("cannot convert low to uint64: %+v", v)
+		}
+	}
+	if v, ok := out["max"]; ok {
+		e.Max, ok = v.(uint64)
+		if !ok {
+			return Event{}, fmt.Errorf("cannot convert max to uint64: %+v", v)
+		}
+	}
+	if v, ok := out["oom"]; ok {
+		e.OOM, ok = v.(uint64)
+		if !ok {
+			return Event{}, fmt.Errorf("cannot convert oom to uint64: %+v", v)
+		}
+	}
+	if v, ok := out["oom_kill"]; ok {
+		e.OOMKill, ok = v.(uint64)
+		if !ok {
+			return Event{}, fmt.Errorf("cannot convert oom_kill to uint64: %+v", v)
+		}
+	}
+	return e, nil
+}
+
+func (c *Manager) waitForEvents(ec chan<- Event, errCh chan<- error) {
+	defer close(errCh)
+
+	fd, _, err := c.MemoryEventFD()
+	if err != nil {
+		errCh <- err
+		return
+	}
+	defer syscall.Close(fd)
+
+	for {
+		buffer := make([]byte, syscall.SizeofInotifyEvent*10)
+		bytesRead, err := syscall.Read(fd, buffer)
+		if err != nil {
+			errCh <- err
+			return
+		}
+		if bytesRead >= syscall.SizeofInotifyEvent {
+			out := make(map[string]interface{})
+			if err := readKVStatsFile(c.path, "memory.events", out); err != nil {
+				// When cgroup is deleted read may return -ENODEV instead of -ENOENT from open.
+				if _, statErr := os.Lstat(filepath.Join(c.path, "memory.events")); !os.IsNotExist(statErr) {
+					errCh <- err
+				}
+				return
+			}
+			e, err := parseMemoryEvents(out)
+			if err != nil {
+				errCh <- err
+				return
+			}
+			ec <- e
+			if c.isCgroupEmpty() {
+				return
+			}
+		}
+	}
+}
+
+func setDevices(path string, devices []specs.LinuxDeviceCgroup) error {
+	if len(devices) == 0 {
+		return nil
+	}
+	insts, license, err := DeviceFilter(devices)
+	if err != nil {
+		return err
+	}
+	dirFD, err := unix.Open(path, unix.O_DIRECTORY|unix.O_RDONLY|unix.O_CLOEXEC, 0600)
+	if err != nil {
+		return fmt.Errorf("cannot get dir FD for %s", path)
+	}
+	defer unix.Close(dirFD)
+	if _, err := LoadAttachCgroupDeviceFilter(insts, license, dirFD); err != nil {
+		if !canSkipEBPFError(devices) {
+			return err
+		}
+	}
+	return nil
+}
+
+// getSystemdFullPath returns the full systemd path when creating a systemd slice group.
+// the reason this is necessary is because the "-" character has a special meaning in
+// systemd slice. For example, when creating a slice called "my-group-112233.slice",
+// systemd will create a hierarchy like this:
+//      /sys/fs/cgroup/my.slice/my-group.slice/my-group-112233.slice
+func getSystemdFullPath(slice, group string) string {
+	return filepath.Join(defaultCgroup2Path, dashesToPath(slice), dashesToPath(group))
+}
+
+// dashesToPath converts a slice name with dashes to it's corresponding systemd filesystem path.
+func dashesToPath(in string) string {
+	path := ""
+	if strings.HasSuffix(in, ".slice") && strings.Contains(in, "-") {
+		parts := strings.Split(in, "-")
+		for i := range parts {
+			s := strings.Join(parts[0:i+1], "-")
+			if !strings.HasSuffix(s, ".slice") {
+				s += ".slice"
+			}
+			path = filepath.Join(path, s)
+		}
+	} else {
+		path = filepath.Join(path, in)
+	}
+	return path
+}
+
+func NewSystemd(slice, group string, pid int, resources *Resources) (*Manager, error) {
+	if slice == "" {
+		slice = defaultSlice
+	}
+	ctx := context.TODO()
+	path := getSystemdFullPath(slice, group)
+	conn, err := systemdDbus.NewWithContext(ctx)
+	if err != nil {
+		return &Manager{}, err
+	}
+	defer conn.Close()
+
+	properties := []systemdDbus.Property{
+		systemdDbus.PropDescription("cgroup " + group),
+		newSystemdProperty("DefaultDependencies", false),
+		newSystemdProperty("MemoryAccounting", true),
+		newSystemdProperty("CPUAccounting", true),
+		newSystemdProperty("IOAccounting", true),
+	}
+
+	// if we create a slice, the parent is defined via a Wants=
+	if strings.HasSuffix(group, ".slice") {
+		properties = append(properties, systemdDbus.PropWants(defaultSlice))
+	} else {
+		// otherwise, we use Slice=
+		properties = append(properties, systemdDbus.PropSlice(defaultSlice))
+	}
+
+	// only add pid if its valid, -1 is used w/ general slice creation.
+	if pid != -1 {
+		properties = append(properties, newSystemdProperty("PIDs", []uint32{uint32(pid)}))
+	}
+
+	if resources.Memory != nil && resources.Memory.Min != nil && *resources.Memory.Min != 0 {
+		properties = append(properties,
+			newSystemdProperty("MemoryMin", uint64(*resources.Memory.Min)))
+	}
+
+	if resources.Memory != nil && resources.Memory.Max != nil && *resources.Memory.Max != 0 {
+		properties = append(properties,
+			newSystemdProperty("MemoryMax", uint64(*resources.Memory.Max)))
+	}
+
+	if resources.CPU != nil && resources.CPU.Weight != nil && *resources.CPU.Weight != 0 {
+		properties = append(properties,
+			newSystemdProperty("CPUWeight", *resources.CPU.Weight))
+	}
+
+	if resources.CPU != nil && resources.CPU.Max != "" {
+		quota, period := resources.CPU.Max.extractQuotaAndPeriod()
+		// cpu.cfs_quota_us and cpu.cfs_period_us are controlled by systemd.
+		// corresponds to USEC_INFINITY in systemd
+		// if USEC_INFINITY is provided, CPUQuota is left unbound by systemd
+		// always setting a property value ensures we can apply a quota and remove it later
+		cpuQuotaPerSecUSec := uint64(math.MaxUint64)
+		if quota > 0 {
+			// systemd converts CPUQuotaPerSecUSec (microseconds per CPU second) to CPUQuota
+			// (integer percentage of CPU) internally.  This means that if a fractional percent of
+			// CPU is indicated by Resources.CpuQuota, we need to round up to the nearest
+			// 10ms (1% of a second) such that child cgroups can set the cpu.cfs_quota_us they expect.
+			cpuQuotaPerSecUSec = uint64(quota*1000000) / period
+			if cpuQuotaPerSecUSec%10000 != 0 {
+				cpuQuotaPerSecUSec = ((cpuQuotaPerSecUSec / 10000) + 1) * 10000
+			}
+		}
+		properties = append(properties,
+			newSystemdProperty("CPUQuotaPerSecUSec", cpuQuotaPerSecUSec))
+	}
+
+	// If we can delegate, we add the property back in
+	if canDelegate {
+		properties = append(properties, newSystemdProperty("Delegate", true))
+	}
+
+	if resources.Pids != nil && resources.Pids.Max > 0 {
+		properties = append(properties,
+			newSystemdProperty("TasksAccounting", true),
+			newSystemdProperty("TasksMax", uint64(resources.Pids.Max)))
+	}
+
+	statusChan := make(chan string, 1)
+	if _, err := conn.StartTransientUnitContext(ctx, group, "replace", properties, statusChan); err == nil {
+		select {
+		case <-statusChan:
+		case <-time.After(time.Second):
+			logrus.Warnf("Timed out while waiting for StartTransientUnit(%s) completion signal from dbus. Continuing...", group)
+		}
+	} else if !isUnitExists(err) {
+		return &Manager{}, err
+	}
+
+	return &Manager{
+		path: path,
+	}, nil
+}
+
+func LoadSystemd(slice, group string) (*Manager, error) {
+	if slice == "" {
+		slice = defaultSlice
+	}
+	path := getSystemdFullPath(slice, group)
+	return &Manager{
+		path: path,
+	}, nil
+}
+
+func (c *Manager) DeleteSystemd() error {
+	ctx := context.TODO()
+	conn, err := systemdDbus.NewWithContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+	group := systemdUnitFromPath(c.path)
+	ch := make(chan string)
+	_, err = conn.StopUnitContext(ctx, group, "replace", ch)
+	if err != nil {
+		return err
+	}
+	<-ch
+	return nil
+}
+
+func newSystemdProperty(name string, units interface{}) systemdDbus.Property {
+	return systemdDbus.Property{
+		Name:  name,
+		Value: dbus.MakeVariant(units),
+	}
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/memory.go b/vendor/github.com/containerd/cgroups/v2/memory.go
new file mode 100644
index 000000000..6f4733be6
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/memory.go
@@ -0,0 +1,59 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+type Memory struct {
+	Swap *int64
+	Min  *int64
+	Max  *int64
+	Low  *int64
+	High *int64
+}
+
+func (r *Memory) Values() (o []Value) {
+	if r.Swap != nil {
+		o = append(o, Value{
+			filename: "memory.swap.max",
+			value:    *r.Swap,
+		})
+	}
+	if r.Min != nil {
+		o = append(o, Value{
+			filename: "memory.min",
+			value:    *r.Min,
+		})
+	}
+	if r.Max != nil {
+		o = append(o, Value{
+			filename: "memory.max",
+			value:    *r.Max,
+		})
+	}
+	if r.Low != nil {
+		o = append(o, Value{
+			filename: "memory.low",
+			value:    *r.Low,
+		})
+	}
+	if r.High != nil {
+		o = append(o, Value{
+			filename: "memory.high",
+			value:    *r.High,
+		})
+	}
+	return o
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/paths.go b/vendor/github.com/containerd/cgroups/v2/paths.go
new file mode 100644
index 000000000..c4778c142
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/paths.go
@@ -0,0 +1,60 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+)
+
+// NestedGroupPath will nest the cgroups based on the calling processes cgroup
+// placing its child processes inside its own path
+func NestedGroupPath(suffix string) (string, error) {
+	path, err := parseCgroupFile("/proc/self/cgroup")
+	if err != nil {
+		return "", err
+	}
+	return filepath.Join(path, suffix), nil
+}
+
+// PidGroupPath will return the correct cgroup paths for an existing process running inside a cgroup
+// This is commonly used for the Load function to restore an existing container
+func PidGroupPath(pid int) (string, error) {
+	p := fmt.Sprintf("/proc/%d/cgroup", pid)
+	return parseCgroupFile(p)
+}
+
+// VerifyGroupPath verifies the format of group path string g.
+// The format is same as the third field in /proc/PID/cgroup.
+// e.g. "/user.slice/user-1001.slice/session-1.scope"
+//
+// g must be a "clean" absolute path starts with "/", and must not contain "/sys/fs/cgroup" prefix.
+//
+// VerifyGroupPath doesn't verify whether g actually exists on the system.
+func VerifyGroupPath(g string) error {
+	if !strings.HasPrefix(g, "/") {
+		return ErrInvalidGroupPath
+	}
+	if filepath.Clean(g) != g {
+		return ErrInvalidGroupPath
+	}
+	if strings.HasPrefix(g, "/sys/fs/cgroup") {
+		return ErrInvalidGroupPath
+	}
+	return nil
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/pids.go b/vendor/github.com/containerd/cgroups/v2/pids.go
new file mode 100644
index 000000000..0b5aa0c3b
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/pids.go
@@ -0,0 +1,37 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+import "strconv"
+
+type Pids struct {
+	Max int64
+}
+
+func (r *Pids) Values() (o []Value) {
+	if r.Max != 0 {
+		limit := "max"
+		if r.Max > 0 {
+			limit = strconv.FormatInt(r.Max, 10)
+		}
+		o = append(o, Value{
+			filename: "pids.max",
+			value:    limit,
+		})
+	}
+	return o
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/rdma.go b/vendor/github.com/containerd/cgroups/v2/rdma.go
new file mode 100644
index 000000000..44caa4f57
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/rdma.go
@@ -0,0 +1,46 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+import (
+	"fmt"
+)
+
+type RDMA struct {
+	Limit []RDMAEntry
+}
+
+type RDMAEntry struct {
+	Device     string
+	HcaHandles uint32
+	HcaObjects uint32
+}
+
+func (r RDMAEntry) String() string {
+	return fmt.Sprintf("%s hca_handle=%d hca_object=%d", r.Device, r.HcaHandles, r.HcaObjects)
+}
+
+func (r *RDMA) Values() (o []Value) {
+	for _, e := range r.Limit {
+		o = append(o, Value{
+			filename: "rdma.max",
+			value:    e.String(),
+		})
+	}
+
+	return o
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/state.go b/vendor/github.com/containerd/cgroups/v2/state.go
new file mode 100644
index 000000000..09b75b6c3
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/state.go
@@ -0,0 +1,65 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+import (
+	"io/ioutil"
+	"path/filepath"
+	"strings"
+)
+
+// State is a type that represents the state of the current cgroup
+type State string
+
+const (
+	Unknown State = ""
+	Thawed  State = "thawed"
+	Frozen  State = "frozen"
+	Deleted State = "deleted"
+
+	cgroupFreeze = "cgroup.freeze"
+)
+
+func (s State) Values() []Value {
+	v := Value{
+		filename: cgroupFreeze,
+	}
+	switch s {
+	case Frozen:
+		v.value = "1"
+	case Thawed:
+		v.value = "0"
+	}
+	return []Value{
+		v,
+	}
+}
+
+func fetchState(path string) (State, error) {
+	current, err := ioutil.ReadFile(filepath.Join(path, cgroupFreeze))
+	if err != nil {
+		return Unknown, err
+	}
+	switch strings.TrimSpace(string(current)) {
+	case "1":
+		return Frozen, nil
+	case "0":
+		return Thawed, nil
+	default:
+		return Unknown, nil
+	}
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/stats/doc.go b/vendor/github.com/containerd/cgroups/v2/stats/doc.go
new file mode 100644
index 000000000..e51e12f80
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/stats/doc.go
@@ -0,0 +1,17 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package stats
diff --git a/vendor/github.com/containerd/cgroups/v2/stats/metrics.pb.go b/vendor/github.com/containerd/cgroups/v2/stats/metrics.pb.go
new file mode 100644
index 000000000..0bd493998
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/stats/metrics.pb.go
@@ -0,0 +1,3992 @@
+// Code generated by protoc-gen-gogo. DO NOT EDIT.
+// source: github.com/containerd/cgroups/v2/stats/metrics.proto
+
+package stats
+
+import (
+	fmt "fmt"
+	_ "github.com/gogo/protobuf/gogoproto"
+	proto "github.com/gogo/protobuf/proto"
+	io "io"
+	math "math"
+	math_bits "math/bits"
+	reflect "reflect"
+	strings "strings"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
+
+type Metrics struct {
+	Pids                 *PidsStat      `protobuf:"bytes,1,opt,name=pids,proto3" json:"pids,omitempty"`
+	CPU                  *CPUStat       `protobuf:"bytes,2,opt,name=cpu,proto3" json:"cpu,omitempty"`
+	Memory               *MemoryStat    `protobuf:"bytes,4,opt,name=memory,proto3" json:"memory,omitempty"`
+	Rdma                 *RdmaStat      `protobuf:"bytes,5,opt,name=rdma,proto3" json:"rdma,omitempty"`
+	Io                   *IOStat        `protobuf:"bytes,6,opt,name=io,proto3" json:"io,omitempty"`
+	Hugetlb              []*HugeTlbStat `protobuf:"bytes,7,rep,name=hugetlb,proto3" json:"hugetlb,omitempty"`
+	MemoryEvents         *MemoryEvents  `protobuf:"bytes,8,opt,name=memory_events,json=memoryEvents,proto3" json:"memory_events,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}       `json:"-"`
+	XXX_unrecognized     []byte         `json:"-"`
+	XXX_sizecache        int32          `json:"-"`
+}
+
+func (m *Metrics) Reset()      { *m = Metrics{} }
+func (*Metrics) ProtoMessage() {}
+func (*Metrics) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2fc6005842049e6b, []int{0}
+}
+func (m *Metrics) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *Metrics) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_Metrics.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *Metrics) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Metrics.Merge(m, src)
+}
+func (m *Metrics) XXX_Size() int {
+	return m.Size()
+}
+func (m *Metrics) XXX_DiscardUnknown() {
+	xxx_messageInfo_Metrics.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Metrics proto.InternalMessageInfo
+
+type PidsStat struct {
+	Current              uint64   `protobuf:"varint,1,opt,name=current,proto3" json:"current,omitempty"`
+	Limit                uint64   `protobuf:"varint,2,opt,name=limit,proto3" json:"limit,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *PidsStat) Reset()      { *m = PidsStat{} }
+func (*PidsStat) ProtoMessage() {}
+func (*PidsStat) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2fc6005842049e6b, []int{1}
+}
+func (m *PidsStat) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *PidsStat) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_PidsStat.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *PidsStat) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_PidsStat.Merge(m, src)
+}
+func (m *PidsStat) XXX_Size() int {
+	return m.Size()
+}
+func (m *PidsStat) XXX_DiscardUnknown() {
+	xxx_messageInfo_PidsStat.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_PidsStat proto.InternalMessageInfo
+
+type CPUStat struct {
+	UsageUsec            uint64   `protobuf:"varint,1,opt,name=usage_usec,json=usageUsec,proto3" json:"usage_usec,omitempty"`
+	UserUsec             uint64   `protobuf:"varint,2,opt,name=user_usec,json=userUsec,proto3" json:"user_usec,omitempty"`
+	SystemUsec           uint64   `protobuf:"varint,3,opt,name=system_usec,json=systemUsec,proto3" json:"system_usec,omitempty"`
+	NrPeriods            uint64   `protobuf:"varint,4,opt,name=nr_periods,json=nrPeriods,proto3" json:"nr_periods,omitempty"`
+	NrThrottled          uint64   `protobuf:"varint,5,opt,name=nr_throttled,json=nrThrottled,proto3" json:"nr_throttled,omitempty"`
+	ThrottledUsec        uint64   `protobuf:"varint,6,opt,name=throttled_usec,json=throttledUsec,proto3" json:"throttled_usec,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *CPUStat) Reset()      { *m = CPUStat{} }
+func (*CPUStat) ProtoMessage() {}
+func (*CPUStat) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2fc6005842049e6b, []int{2}
+}
+func (m *CPUStat) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *CPUStat) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_CPUStat.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *CPUStat) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_CPUStat.Merge(m, src)
+}
+func (m *CPUStat) XXX_Size() int {
+	return m.Size()
+}
+func (m *CPUStat) XXX_DiscardUnknown() {
+	xxx_messageInfo_CPUStat.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_CPUStat proto.InternalMessageInfo
+
+type MemoryStat struct {
+	Anon                  uint64   `protobuf:"varint,1,opt,name=anon,proto3" json:"anon,omitempty"`
+	File                  uint64   `protobuf:"varint,2,opt,name=file,proto3" json:"file,omitempty"`
+	KernelStack           uint64   `protobuf:"varint,3,opt,name=kernel_stack,json=kernelStack,proto3" json:"kernel_stack,omitempty"`
+	Slab                  uint64   `protobuf:"varint,4,opt,name=slab,proto3" json:"slab,omitempty"`
+	Sock                  uint64   `protobuf:"varint,5,opt,name=sock,proto3" json:"sock,omitempty"`
+	Shmem                 uint64   `protobuf:"varint,6,opt,name=shmem,proto3" json:"shmem,omitempty"`
+	FileMapped            uint64   `protobuf:"varint,7,opt,name=file_mapped,json=fileMapped,proto3" json:"file_mapped,omitempty"`
+	FileDirty             uint64   `protobuf:"varint,8,opt,name=file_dirty,json=fileDirty,proto3" json:"file_dirty,omitempty"`
+	FileWriteback         uint64   `protobuf:"varint,9,opt,name=file_writeback,json=fileWriteback,proto3" json:"file_writeback,omitempty"`
+	AnonThp               uint64   `protobuf:"varint,10,opt,name=anon_thp,json=anonThp,proto3" json:"anon_thp,omitempty"`
+	InactiveAnon          uint64   `protobuf:"varint,11,opt,name=inactive_anon,json=inactiveAnon,proto3" json:"inactive_anon,omitempty"`
+	ActiveAnon            uint64   `protobuf:"varint,12,opt,name=active_anon,json=activeAnon,proto3" json:"active_anon,omitempty"`
+	InactiveFile          uint64   `protobuf:"varint,13,opt,name=inactive_file,json=inactiveFile,proto3" json:"inactive_file,omitempty"`
+	ActiveFile            uint64   `protobuf:"varint,14,opt,name=active_file,json=activeFile,proto3" json:"active_file,omitempty"`
+	Unevictable           uint64   `protobuf:"varint,15,opt,name=unevictable,proto3" json:"unevictable,omitempty"`
+	SlabReclaimable       uint64   `protobuf:"varint,16,opt,name=slab_reclaimable,json=slabReclaimable,proto3" json:"slab_reclaimable,omitempty"`
+	SlabUnreclaimable     uint64   `protobuf:"varint,17,opt,name=slab_unreclaimable,json=slabUnreclaimable,proto3" json:"slab_unreclaimable,omitempty"`
+	Pgfault               uint64   `protobuf:"varint,18,opt,name=pgfault,proto3" json:"pgfault,omitempty"`
+	Pgmajfault            uint64   `protobuf:"varint,19,opt,name=pgmajfault,proto3" json:"pgmajfault,omitempty"`
+	WorkingsetRefault     uint64   `protobuf:"varint,20,opt,name=workingset_refault,json=workingsetRefault,proto3" json:"workingset_refault,omitempty"`
+	WorkingsetActivate    uint64   `protobuf:"varint,21,opt,name=workingset_activate,json=workingsetActivate,proto3" json:"workingset_activate,omitempty"`
+	WorkingsetNodereclaim uint64   `protobuf:"varint,22,opt,name=workingset_nodereclaim,json=workingsetNodereclaim,proto3" json:"workingset_nodereclaim,omitempty"`
+	Pgrefill              uint64   `protobuf:"varint,23,opt,name=pgrefill,proto3" json:"pgrefill,omitempty"`
+	Pgscan                uint64   `protobuf:"varint,24,opt,name=pgscan,proto3" json:"pgscan,omitempty"`
+	Pgsteal               uint64   `protobuf:"varint,25,opt,name=pgsteal,proto3" json:"pgsteal,omitempty"`
+	Pgactivate            uint64   `protobuf:"varint,26,opt,name=pgactivate,proto3" json:"pgactivate,omitempty"`
+	Pgdeactivate          uint64   `protobuf:"varint,27,opt,name=pgdeactivate,proto3" json:"pgdeactivate,omitempty"`
+	Pglazyfree            uint64   `protobuf:"varint,28,opt,name=pglazyfree,proto3" json:"pglazyfree,omitempty"`
+	Pglazyfreed           uint64   `protobuf:"varint,29,opt,name=pglazyfreed,proto3" json:"pglazyfreed,omitempty"`
+	ThpFaultAlloc         uint64   `protobuf:"varint,30,opt,name=thp_fault_alloc,json=thpFaultAlloc,proto3" json:"thp_fault_alloc,omitempty"`
+	ThpCollapseAlloc      uint64   `protobuf:"varint,31,opt,name=thp_collapse_alloc,json=thpCollapseAlloc,proto3" json:"thp_collapse_alloc,omitempty"`
+	Usage                 uint64   `protobuf:"varint,32,opt,name=usage,proto3" json:"usage,omitempty"`
+	UsageLimit            uint64   `protobuf:"varint,33,opt,name=usage_limit,json=usageLimit,proto3" json:"usage_limit,omitempty"`
+	SwapUsage             uint64   `protobuf:"varint,34,opt,name=swap_usage,json=swapUsage,proto3" json:"swap_usage,omitempty"`
+	SwapLimit             uint64   `protobuf:"varint,35,opt,name=swap_limit,json=swapLimit,proto3" json:"swap_limit,omitempty"`
+	XXX_NoUnkeyedLiteral  struct{} `json:"-"`
+	XXX_unrecognized      []byte   `json:"-"`
+	XXX_sizecache         int32    `json:"-"`
+}
+
+func (m *MemoryStat) Reset()      { *m = MemoryStat{} }
+func (*MemoryStat) ProtoMessage() {}
+func (*MemoryStat) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2fc6005842049e6b, []int{3}
+}
+func (m *MemoryStat) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *MemoryStat) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_MemoryStat.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *MemoryStat) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_MemoryStat.Merge(m, src)
+}
+func (m *MemoryStat) XXX_Size() int {
+	return m.Size()
+}
+func (m *MemoryStat) XXX_DiscardUnknown() {
+	xxx_messageInfo_MemoryStat.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_MemoryStat proto.InternalMessageInfo
+
+type MemoryEvents struct {
+	Low                  uint64   `protobuf:"varint,1,opt,name=low,proto3" json:"low,omitempty"`
+	High                 uint64   `protobuf:"varint,2,opt,name=high,proto3" json:"high,omitempty"`
+	Max                  uint64   `protobuf:"varint,3,opt,name=max,proto3" json:"max,omitempty"`
+	Oom                  uint64   `protobuf:"varint,4,opt,name=oom,proto3" json:"oom,omitempty"`
+	OomKill              uint64   `protobuf:"varint,5,opt,name=oom_kill,json=oomKill,proto3" json:"oom_kill,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *MemoryEvents) Reset()      { *m = MemoryEvents{} }
+func (*MemoryEvents) ProtoMessage() {}
+func (*MemoryEvents) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2fc6005842049e6b, []int{4}
+}
+func (m *MemoryEvents) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *MemoryEvents) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_MemoryEvents.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *MemoryEvents) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_MemoryEvents.Merge(m, src)
+}
+func (m *MemoryEvents) XXX_Size() int {
+	return m.Size()
+}
+func (m *MemoryEvents) XXX_DiscardUnknown() {
+	xxx_messageInfo_MemoryEvents.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_MemoryEvents proto.InternalMessageInfo
+
+type RdmaStat struct {
+	Current              []*RdmaEntry `protobuf:"bytes,1,rep,name=current,proto3" json:"current,omitempty"`
+	Limit                []*RdmaEntry `protobuf:"bytes,2,rep,name=limit,proto3" json:"limit,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}     `json:"-"`
+	XXX_unrecognized     []byte       `json:"-"`
+	XXX_sizecache        int32        `json:"-"`
+}
+
+func (m *RdmaStat) Reset()      { *m = RdmaStat{} }
+func (*RdmaStat) ProtoMessage() {}
+func (*RdmaStat) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2fc6005842049e6b, []int{5}
+}
+func (m *RdmaStat) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *RdmaStat) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_RdmaStat.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *RdmaStat) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_RdmaStat.Merge(m, src)
+}
+func (m *RdmaStat) XXX_Size() int {
+	return m.Size()
+}
+func (m *RdmaStat) XXX_DiscardUnknown() {
+	xxx_messageInfo_RdmaStat.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_RdmaStat proto.InternalMessageInfo
+
+type RdmaEntry struct {
+	Device               string   `protobuf:"bytes,1,opt,name=device,proto3" json:"device,omitempty"`
+	HcaHandles           uint32   `protobuf:"varint,2,opt,name=hca_handles,json=hcaHandles,proto3" json:"hca_handles,omitempty"`
+	HcaObjects           uint32   `protobuf:"varint,3,opt,name=hca_objects,json=hcaObjects,proto3" json:"hca_objects,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *RdmaEntry) Reset()      { *m = RdmaEntry{} }
+func (*RdmaEntry) ProtoMessage() {}
+func (*RdmaEntry) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2fc6005842049e6b, []int{6}
+}
+func (m *RdmaEntry) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *RdmaEntry) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_RdmaEntry.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *RdmaEntry) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_RdmaEntry.Merge(m, src)
+}
+func (m *RdmaEntry) XXX_Size() int {
+	return m.Size()
+}
+func (m *RdmaEntry) XXX_DiscardUnknown() {
+	xxx_messageInfo_RdmaEntry.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_RdmaEntry proto.InternalMessageInfo
+
+type IOStat struct {
+	Usage                []*IOEntry `protobuf:"bytes,1,rep,name=usage,proto3" json:"usage,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}   `json:"-"`
+	XXX_unrecognized     []byte     `json:"-"`
+	XXX_sizecache        int32      `json:"-"`
+}
+
+func (m *IOStat) Reset()      { *m = IOStat{} }
+func (*IOStat) ProtoMessage() {}
+func (*IOStat) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2fc6005842049e6b, []int{7}
+}
+func (m *IOStat) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *IOStat) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_IOStat.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *IOStat) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_IOStat.Merge(m, src)
+}
+func (m *IOStat) XXX_Size() int {
+	return m.Size()
+}
+func (m *IOStat) XXX_DiscardUnknown() {
+	xxx_messageInfo_IOStat.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_IOStat proto.InternalMessageInfo
+
+type IOEntry struct {
+	Major                uint64   `protobuf:"varint,1,opt,name=major,proto3" json:"major,omitempty"`
+	Minor                uint64   `protobuf:"varint,2,opt,name=minor,proto3" json:"minor,omitempty"`
+	Rbytes               uint64   `protobuf:"varint,3,opt,name=rbytes,proto3" json:"rbytes,omitempty"`
+	Wbytes               uint64   `protobuf:"varint,4,opt,name=wbytes,proto3" json:"wbytes,omitempty"`
+	Rios                 uint64   `protobuf:"varint,5,opt,name=rios,proto3" json:"rios,omitempty"`
+	Wios                 uint64   `protobuf:"varint,6,opt,name=wios,proto3" json:"wios,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *IOEntry) Reset()      { *m = IOEntry{} }
+func (*IOEntry) ProtoMessage() {}
+func (*IOEntry) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2fc6005842049e6b, []int{8}
+}
+func (m *IOEntry) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *IOEntry) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_IOEntry.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *IOEntry) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_IOEntry.Merge(m, src)
+}
+func (m *IOEntry) XXX_Size() int {
+	return m.Size()
+}
+func (m *IOEntry) XXX_DiscardUnknown() {
+	xxx_messageInfo_IOEntry.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_IOEntry proto.InternalMessageInfo
+
+type HugeTlbStat struct {
+	Current              uint64   `protobuf:"varint,1,opt,name=current,proto3" json:"current,omitempty"`
+	Max                  uint64   `protobuf:"varint,2,opt,name=max,proto3" json:"max,omitempty"`
+	Pagesize             string   `protobuf:"bytes,3,opt,name=pagesize,proto3" json:"pagesize,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *HugeTlbStat) Reset()      { *m = HugeTlbStat{} }
+func (*HugeTlbStat) ProtoMessage() {}
+func (*HugeTlbStat) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2fc6005842049e6b, []int{9}
+}
+func (m *HugeTlbStat) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *HugeTlbStat) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_HugeTlbStat.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *HugeTlbStat) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_HugeTlbStat.Merge(m, src)
+}
+func (m *HugeTlbStat) XXX_Size() int {
+	return m.Size()
+}
+func (m *HugeTlbStat) XXX_DiscardUnknown() {
+	xxx_messageInfo_HugeTlbStat.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_HugeTlbStat proto.InternalMessageInfo
+
+func init() {
+	proto.RegisterType((*Metrics)(nil), "io.containerd.cgroups.v2.Metrics")
+	proto.RegisterType((*PidsStat)(nil), "io.containerd.cgroups.v2.PidsStat")
+	proto.RegisterType((*CPUStat)(nil), "io.containerd.cgroups.v2.CPUStat")
+	proto.RegisterType((*MemoryStat)(nil), "io.containerd.cgroups.v2.MemoryStat")
+	proto.RegisterType((*MemoryEvents)(nil), "io.containerd.cgroups.v2.MemoryEvents")
+	proto.RegisterType((*RdmaStat)(nil), "io.containerd.cgroups.v2.RdmaStat")
+	proto.RegisterType((*RdmaEntry)(nil), "io.containerd.cgroups.v2.RdmaEntry")
+	proto.RegisterType((*IOStat)(nil), "io.containerd.cgroups.v2.IOStat")
+	proto.RegisterType((*IOEntry)(nil), "io.containerd.cgroups.v2.IOEntry")
+	proto.RegisterType((*HugeTlbStat)(nil), "io.containerd.cgroups.v2.HugeTlbStat")
+}
+
+func init() {
+	proto.RegisterFile("github.com/containerd/cgroups/v2/stats/metrics.proto", fileDescriptor_2fc6005842049e6b)
+}
+
+var fileDescriptor_2fc6005842049e6b = []byte{
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+}
+
+func (m *Metrics) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *Metrics) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *Metrics) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
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+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
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+	if m.MemoryEvents != nil {
+		{
+			size, err := m.MemoryEvents.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
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+			i -= size
+			i = encodeVarintMetrics(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x42
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+	if len(m.Hugetlb) > 0 {
+		for iNdEx := len(m.Hugetlb) - 1; iNdEx >= 0; iNdEx-- {
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+				size, err := m.Hugetlb[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
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+				i -= size
+				i = encodeVarintMetrics(dAtA, i, uint64(size))
+			}
+			i--
+			dAtA[i] = 0x3a
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+	if m.Io != nil {
+		{
+			size, err := m.Io.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
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+			i -= size
+			i = encodeVarintMetrics(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x32
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+	if m.Rdma != nil {
+		{
+			size, err := m.Rdma.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintMetrics(dAtA, i, uint64(size))
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+		i--
+		dAtA[i] = 0x2a
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+	if m.Memory != nil {
+		{
+			size, err := m.Memory.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintMetrics(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x22
+	}
+	if m.CPU != nil {
+		{
+			size, err := m.CPU.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintMetrics(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x12
+	}
+	if m.Pids != nil {
+		{
+			size, err := m.Pids.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintMetrics(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
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+func (m *PidsStat) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *PidsStat) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *PidsStat) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if m.Limit != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Limit))
+		i--
+		dAtA[i] = 0x10
+	}
+	if m.Current != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Current))
+		i--
+		dAtA[i] = 0x8
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *CPUStat) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *CPUStat) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *CPUStat) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if m.ThrottledUsec != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.ThrottledUsec))
+		i--
+		dAtA[i] = 0x30
+	}
+	if m.NrThrottled != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.NrThrottled))
+		i--
+		dAtA[i] = 0x28
+	}
+	if m.NrPeriods != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.NrPeriods))
+		i--
+		dAtA[i] = 0x20
+	}
+	if m.SystemUsec != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.SystemUsec))
+		i--
+		dAtA[i] = 0x18
+	}
+	if m.UserUsec != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.UserUsec))
+		i--
+		dAtA[i] = 0x10
+	}
+	if m.UsageUsec != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.UsageUsec))
+		i--
+		dAtA[i] = 0x8
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *MemoryStat) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *MemoryStat) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *MemoryStat) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if m.SwapLimit != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.SwapLimit))
+		i--
+		dAtA[i] = 0x2
+		i--
+		dAtA[i] = 0x98
+	}
+	if m.SwapUsage != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.SwapUsage))
+		i--
+		dAtA[i] = 0x2
+		i--
+		dAtA[i] = 0x90
+	}
+	if m.UsageLimit != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.UsageLimit))
+		i--
+		dAtA[i] = 0x2
+		i--
+		dAtA[i] = 0x88
+	}
+	if m.Usage != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Usage))
+		i--
+		dAtA[i] = 0x2
+		i--
+		dAtA[i] = 0x80
+	}
+	if m.ThpCollapseAlloc != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.ThpCollapseAlloc))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xf8
+	}
+	if m.ThpFaultAlloc != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.ThpFaultAlloc))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xf0
+	}
+	if m.Pglazyfreed != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Pglazyfreed))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xe8
+	}
+	if m.Pglazyfree != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Pglazyfree))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xe0
+	}
+	if m.Pgdeactivate != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Pgdeactivate))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xd8
+	}
+	if m.Pgactivate != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Pgactivate))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xd0
+	}
+	if m.Pgsteal != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Pgsteal))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xc8
+	}
+	if m.Pgscan != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Pgscan))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xc0
+	}
+	if m.Pgrefill != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Pgrefill))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xb8
+	}
+	if m.WorkingsetNodereclaim != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.WorkingsetNodereclaim))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xb0
+	}
+	if m.WorkingsetActivate != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.WorkingsetActivate))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xa8
+	}
+	if m.WorkingsetRefault != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.WorkingsetRefault))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xa0
+	}
+	if m.Pgmajfault != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Pgmajfault))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0x98
+	}
+	if m.Pgfault != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Pgfault))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0x90
+	}
+	if m.SlabUnreclaimable != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.SlabUnreclaimable))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0x88
+	}
+	if m.SlabReclaimable != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.SlabReclaimable))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0x80
+	}
+	if m.Unevictable != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Unevictable))
+		i--
+		dAtA[i] = 0x78
+	}
+	if m.ActiveFile != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.ActiveFile))
+		i--
+		dAtA[i] = 0x70
+	}
+	if m.InactiveFile != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.InactiveFile))
+		i--
+		dAtA[i] = 0x68
+	}
+	if m.ActiveAnon != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.ActiveAnon))
+		i--
+		dAtA[i] = 0x60
+	}
+	if m.InactiveAnon != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.InactiveAnon))
+		i--
+		dAtA[i] = 0x58
+	}
+	if m.AnonThp != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.AnonThp))
+		i--
+		dAtA[i] = 0x50
+	}
+	if m.FileWriteback != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.FileWriteback))
+		i--
+		dAtA[i] = 0x48
+	}
+	if m.FileDirty != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.FileDirty))
+		i--
+		dAtA[i] = 0x40
+	}
+	if m.FileMapped != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.FileMapped))
+		i--
+		dAtA[i] = 0x38
+	}
+	if m.Shmem != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Shmem))
+		i--
+		dAtA[i] = 0x30
+	}
+	if m.Sock != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Sock))
+		i--
+		dAtA[i] = 0x28
+	}
+	if m.Slab != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Slab))
+		i--
+		dAtA[i] = 0x20
+	}
+	if m.KernelStack != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.KernelStack))
+		i--
+		dAtA[i] = 0x18
+	}
+	if m.File != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.File))
+		i--
+		dAtA[i] = 0x10
+	}
+	if m.Anon != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Anon))
+		i--
+		dAtA[i] = 0x8
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *MemoryEvents) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *MemoryEvents) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *MemoryEvents) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if m.OomKill != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.OomKill))
+		i--
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+	if m.Oom != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Oom))
+		i--
+		dAtA[i] = 0x20
+	}
+	if m.Max != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Max))
+		i--
+		dAtA[i] = 0x18
+	}
+	if m.High != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.High))
+		i--
+		dAtA[i] = 0x10
+	}
+	if m.Low != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Low))
+		i--
+		dAtA[i] = 0x8
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *RdmaStat) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *RdmaStat) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *RdmaStat) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if len(m.Limit) > 0 {
+		for iNdEx := len(m.Limit) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.Limit[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintMetrics(dAtA, i, uint64(size))
+			}
+			i--
+			dAtA[i] = 0x12
+		}
+	}
+	if len(m.Current) > 0 {
+		for iNdEx := len(m.Current) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.Current[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintMetrics(dAtA, i, uint64(size))
+			}
+			i--
+			dAtA[i] = 0xa
+		}
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *RdmaEntry) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *RdmaEntry) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *RdmaEntry) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if m.HcaObjects != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.HcaObjects))
+		i--
+		dAtA[i] = 0x18
+	}
+	if m.HcaHandles != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.HcaHandles))
+		i--
+		dAtA[i] = 0x10
+	}
+	if len(m.Device) > 0 {
+		i -= len(m.Device)
+		copy(dAtA[i:], m.Device)
+		i = encodeVarintMetrics(dAtA, i, uint64(len(m.Device)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *IOStat) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *IOStat) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *IOStat) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if len(m.Usage) > 0 {
+		for iNdEx := len(m.Usage) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.Usage[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintMetrics(dAtA, i, uint64(size))
+			}
+			i--
+			dAtA[i] = 0xa
+		}
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *IOEntry) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *IOEntry) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *IOEntry) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if m.Wios != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Wios))
+		i--
+		dAtA[i] = 0x30
+	}
+	if m.Rios != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Rios))
+		i--
+		dAtA[i] = 0x28
+	}
+	if m.Wbytes != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Wbytes))
+		i--
+		dAtA[i] = 0x20
+	}
+	if m.Rbytes != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Rbytes))
+		i--
+		dAtA[i] = 0x18
+	}
+	if m.Minor != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Minor))
+		i--
+		dAtA[i] = 0x10
+	}
+	if m.Major != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Major))
+		i--
+		dAtA[i] = 0x8
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *HugeTlbStat) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *HugeTlbStat) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *HugeTlbStat) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if len(m.Pagesize) > 0 {
+		i -= len(m.Pagesize)
+		copy(dAtA[i:], m.Pagesize)
+		i = encodeVarintMetrics(dAtA, i, uint64(len(m.Pagesize)))
+		i--
+		dAtA[i] = 0x1a
+	}
+	if m.Max != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Max))
+		i--
+		dAtA[i] = 0x10
+	}
+	if m.Current != 0 {
+		i = encodeVarintMetrics(dAtA, i, uint64(m.Current))
+		i--
+		dAtA[i] = 0x8
+	}
+	return len(dAtA) - i, nil
+}
+
+func encodeVarintMetrics(dAtA []byte, offset int, v uint64) int {
+	offset -= sovMetrics(v)
+	base := offset
+	for v >= 1<<7 {
+		dAtA[offset] = uint8(v&0x7f | 0x80)
+		v >>= 7
+		offset++
+	}
+	dAtA[offset] = uint8(v)
+	return base
+}
+func (m *Metrics) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.Pids != nil {
+		l = m.Pids.Size()
+		n += 1 + l + sovMetrics(uint64(l))
+	}
+	if m.CPU != nil {
+		l = m.CPU.Size()
+		n += 1 + l + sovMetrics(uint64(l))
+	}
+	if m.Memory != nil {
+		l = m.Memory.Size()
+		n += 1 + l + sovMetrics(uint64(l))
+	}
+	if m.Rdma != nil {
+		l = m.Rdma.Size()
+		n += 1 + l + sovMetrics(uint64(l))
+	}
+	if m.Io != nil {
+		l = m.Io.Size()
+		n += 1 + l + sovMetrics(uint64(l))
+	}
+	if len(m.Hugetlb) > 0 {
+		for _, e := range m.Hugetlb {
+			l = e.Size()
+			n += 1 + l + sovMetrics(uint64(l))
+		}
+	}
+	if m.MemoryEvents != nil {
+		l = m.MemoryEvents.Size()
+		n += 1 + l + sovMetrics(uint64(l))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *PidsStat) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.Current != 0 {
+		n += 1 + sovMetrics(uint64(m.Current))
+	}
+	if m.Limit != 0 {
+		n += 1 + sovMetrics(uint64(m.Limit))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *CPUStat) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.UsageUsec != 0 {
+		n += 1 + sovMetrics(uint64(m.UsageUsec))
+	}
+	if m.UserUsec != 0 {
+		n += 1 + sovMetrics(uint64(m.UserUsec))
+	}
+	if m.SystemUsec != 0 {
+		n += 1 + sovMetrics(uint64(m.SystemUsec))
+	}
+	if m.NrPeriods != 0 {
+		n += 1 + sovMetrics(uint64(m.NrPeriods))
+	}
+	if m.NrThrottled != 0 {
+		n += 1 + sovMetrics(uint64(m.NrThrottled))
+	}
+	if m.ThrottledUsec != 0 {
+		n += 1 + sovMetrics(uint64(m.ThrottledUsec))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *MemoryStat) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.Anon != 0 {
+		n += 1 + sovMetrics(uint64(m.Anon))
+	}
+	if m.File != 0 {
+		n += 1 + sovMetrics(uint64(m.File))
+	}
+	if m.KernelStack != 0 {
+		n += 1 + sovMetrics(uint64(m.KernelStack))
+	}
+	if m.Slab != 0 {
+		n += 1 + sovMetrics(uint64(m.Slab))
+	}
+	if m.Sock != 0 {
+		n += 1 + sovMetrics(uint64(m.Sock))
+	}
+	if m.Shmem != 0 {
+		n += 1 + sovMetrics(uint64(m.Shmem))
+	}
+	if m.FileMapped != 0 {
+		n += 1 + sovMetrics(uint64(m.FileMapped))
+	}
+	if m.FileDirty != 0 {
+		n += 1 + sovMetrics(uint64(m.FileDirty))
+	}
+	if m.FileWriteback != 0 {
+		n += 1 + sovMetrics(uint64(m.FileWriteback))
+	}
+	if m.AnonThp != 0 {
+		n += 1 + sovMetrics(uint64(m.AnonThp))
+	}
+	if m.InactiveAnon != 0 {
+		n += 1 + sovMetrics(uint64(m.InactiveAnon))
+	}
+	if m.ActiveAnon != 0 {
+		n += 1 + sovMetrics(uint64(m.ActiveAnon))
+	}
+	if m.InactiveFile != 0 {
+		n += 1 + sovMetrics(uint64(m.InactiveFile))
+	}
+	if m.ActiveFile != 0 {
+		n += 1 + sovMetrics(uint64(m.ActiveFile))
+	}
+	if m.Unevictable != 0 {
+		n += 1 + sovMetrics(uint64(m.Unevictable))
+	}
+	if m.SlabReclaimable != 0 {
+		n += 2 + sovMetrics(uint64(m.SlabReclaimable))
+	}
+	if m.SlabUnreclaimable != 0 {
+		n += 2 + sovMetrics(uint64(m.SlabUnreclaimable))
+	}
+	if m.Pgfault != 0 {
+		n += 2 + sovMetrics(uint64(m.Pgfault))
+	}
+	if m.Pgmajfault != 0 {
+		n += 2 + sovMetrics(uint64(m.Pgmajfault))
+	}
+	if m.WorkingsetRefault != 0 {
+		n += 2 + sovMetrics(uint64(m.WorkingsetRefault))
+	}
+	if m.WorkingsetActivate != 0 {
+		n += 2 + sovMetrics(uint64(m.WorkingsetActivate))
+	}
+	if m.WorkingsetNodereclaim != 0 {
+		n += 2 + sovMetrics(uint64(m.WorkingsetNodereclaim))
+	}
+	if m.Pgrefill != 0 {
+		n += 2 + sovMetrics(uint64(m.Pgrefill))
+	}
+	if m.Pgscan != 0 {
+		n += 2 + sovMetrics(uint64(m.Pgscan))
+	}
+	if m.Pgsteal != 0 {
+		n += 2 + sovMetrics(uint64(m.Pgsteal))
+	}
+	if m.Pgactivate != 0 {
+		n += 2 + sovMetrics(uint64(m.Pgactivate))
+	}
+	if m.Pgdeactivate != 0 {
+		n += 2 + sovMetrics(uint64(m.Pgdeactivate))
+	}
+	if m.Pglazyfree != 0 {
+		n += 2 + sovMetrics(uint64(m.Pglazyfree))
+	}
+	if m.Pglazyfreed != 0 {
+		n += 2 + sovMetrics(uint64(m.Pglazyfreed))
+	}
+	if m.ThpFaultAlloc != 0 {
+		n += 2 + sovMetrics(uint64(m.ThpFaultAlloc))
+	}
+	if m.ThpCollapseAlloc != 0 {
+		n += 2 + sovMetrics(uint64(m.ThpCollapseAlloc))
+	}
+	if m.Usage != 0 {
+		n += 2 + sovMetrics(uint64(m.Usage))
+	}
+	if m.UsageLimit != 0 {
+		n += 2 + sovMetrics(uint64(m.UsageLimit))
+	}
+	if m.SwapUsage != 0 {
+		n += 2 + sovMetrics(uint64(m.SwapUsage))
+	}
+	if m.SwapLimit != 0 {
+		n += 2 + sovMetrics(uint64(m.SwapLimit))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *MemoryEvents) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.Low != 0 {
+		n += 1 + sovMetrics(uint64(m.Low))
+	}
+	if m.High != 0 {
+		n += 1 + sovMetrics(uint64(m.High))
+	}
+	if m.Max != 0 {
+		n += 1 + sovMetrics(uint64(m.Max))
+	}
+	if m.Oom != 0 {
+		n += 1 + sovMetrics(uint64(m.Oom))
+	}
+	if m.OomKill != 0 {
+		n += 1 + sovMetrics(uint64(m.OomKill))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *RdmaStat) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if len(m.Current) > 0 {
+		for _, e := range m.Current {
+			l = e.Size()
+			n += 1 + l + sovMetrics(uint64(l))
+		}
+	}
+	if len(m.Limit) > 0 {
+		for _, e := range m.Limit {
+			l = e.Size()
+			n += 1 + l + sovMetrics(uint64(l))
+		}
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *RdmaEntry) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = len(m.Device)
+	if l > 0 {
+		n += 1 + l + sovMetrics(uint64(l))
+	}
+	if m.HcaHandles != 0 {
+		n += 1 + sovMetrics(uint64(m.HcaHandles))
+	}
+	if m.HcaObjects != 0 {
+		n += 1 + sovMetrics(uint64(m.HcaObjects))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *IOStat) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if len(m.Usage) > 0 {
+		for _, e := range m.Usage {
+			l = e.Size()
+			n += 1 + l + sovMetrics(uint64(l))
+		}
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *IOEntry) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.Major != 0 {
+		n += 1 + sovMetrics(uint64(m.Major))
+	}
+	if m.Minor != 0 {
+		n += 1 + sovMetrics(uint64(m.Minor))
+	}
+	if m.Rbytes != 0 {
+		n += 1 + sovMetrics(uint64(m.Rbytes))
+	}
+	if m.Wbytes != 0 {
+		n += 1 + sovMetrics(uint64(m.Wbytes))
+	}
+	if m.Rios != 0 {
+		n += 1 + sovMetrics(uint64(m.Rios))
+	}
+	if m.Wios != 0 {
+		n += 1 + sovMetrics(uint64(m.Wios))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *HugeTlbStat) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.Current != 0 {
+		n += 1 + sovMetrics(uint64(m.Current))
+	}
+	if m.Max != 0 {
+		n += 1 + sovMetrics(uint64(m.Max))
+	}
+	l = len(m.Pagesize)
+	if l > 0 {
+		n += 1 + l + sovMetrics(uint64(l))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func sovMetrics(x uint64) (n int) {
+	return (math_bits.Len64(x|1) + 6) / 7
+}
+func sozMetrics(x uint64) (n int) {
+	return sovMetrics(uint64((x << 1) ^ uint64((int64(x) >> 63))))
+}
+func (this *Metrics) String() string {
+	if this == nil {
+		return "nil"
+	}
+	repeatedStringForHugetlb := "[]*HugeTlbStat{"
+	for _, f := range this.Hugetlb {
+		repeatedStringForHugetlb += strings.Replace(f.String(), "HugeTlbStat", "HugeTlbStat", 1) + ","
+	}
+	repeatedStringForHugetlb += "}"
+	s := strings.Join([]string{`&Metrics{`,
+		`Pids:` + strings.Replace(this.Pids.String(), "PidsStat", "PidsStat", 1) + `,`,
+		`CPU:` + strings.Replace(this.CPU.String(), "CPUStat", "CPUStat", 1) + `,`,
+		`Memory:` + strings.Replace(this.Memory.String(), "MemoryStat", "MemoryStat", 1) + `,`,
+		`Rdma:` + strings.Replace(this.Rdma.String(), "RdmaStat", "RdmaStat", 1) + `,`,
+		`Io:` + strings.Replace(this.Io.String(), "IOStat", "IOStat", 1) + `,`,
+		`Hugetlb:` + repeatedStringForHugetlb + `,`,
+		`MemoryEvents:` + strings.Replace(this.MemoryEvents.String(), "MemoryEvents", "MemoryEvents", 1) + `,`,
+		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func (this *PidsStat) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&PidsStat{`,
+		`Current:` + fmt.Sprintf("%v", this.Current) + `,`,
+		`Limit:` + fmt.Sprintf("%v", this.Limit) + `,`,
+		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func (this *CPUStat) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&CPUStat{`,
+		`UsageUsec:` + fmt.Sprintf("%v", this.UsageUsec) + `,`,
+		`UserUsec:` + fmt.Sprintf("%v", this.UserUsec) + `,`,
+		`SystemUsec:` + fmt.Sprintf("%v", this.SystemUsec) + `,`,
+		`NrPeriods:` + fmt.Sprintf("%v", this.NrPeriods) + `,`,
+		`NrThrottled:` + fmt.Sprintf("%v", this.NrThrottled) + `,`,
+		`ThrottledUsec:` + fmt.Sprintf("%v", this.ThrottledUsec) + `,`,
+		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func (this *MemoryStat) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&MemoryStat{`,
+		`Anon:` + fmt.Sprintf("%v", this.Anon) + `,`,
+		`File:` + fmt.Sprintf("%v", this.File) + `,`,
+		`KernelStack:` + fmt.Sprintf("%v", this.KernelStack) + `,`,
+		`Slab:` + fmt.Sprintf("%v", this.Slab) + `,`,
+		`Sock:` + fmt.Sprintf("%v", this.Sock) + `,`,
+		`Shmem:` + fmt.Sprintf("%v", this.Shmem) + `,`,
+		`FileMapped:` + fmt.Sprintf("%v", this.FileMapped) + `,`,
+		`FileDirty:` + fmt.Sprintf("%v", this.FileDirty) + `,`,
+		`FileWriteback:` + fmt.Sprintf("%v", this.FileWriteback) + `,`,
+		`AnonThp:` + fmt.Sprintf("%v", this.AnonThp) + `,`,
+		`InactiveAnon:` + fmt.Sprintf("%v", this.InactiveAnon) + `,`,
+		`ActiveAnon:` + fmt.Sprintf("%v", this.ActiveAnon) + `,`,
+		`InactiveFile:` + fmt.Sprintf("%v", this.InactiveFile) + `,`,
+		`ActiveFile:` + fmt.Sprintf("%v", this.ActiveFile) + `,`,
+		`Unevictable:` + fmt.Sprintf("%v", this.Unevictable) + `,`,
+		`SlabReclaimable:` + fmt.Sprintf("%v", this.SlabReclaimable) + `,`,
+		`SlabUnreclaimable:` + fmt.Sprintf("%v", this.SlabUnreclaimable) + `,`,
+		`Pgfault:` + fmt.Sprintf("%v", this.Pgfault) + `,`,
+		`Pgmajfault:` + fmt.Sprintf("%v", this.Pgmajfault) + `,`,
+		`WorkingsetRefault:` + fmt.Sprintf("%v", this.WorkingsetRefault) + `,`,
+		`WorkingsetActivate:` + fmt.Sprintf("%v", this.WorkingsetActivate) + `,`,
+		`WorkingsetNodereclaim:` + fmt.Sprintf("%v", this.WorkingsetNodereclaim) + `,`,
+		`Pgrefill:` + fmt.Sprintf("%v", this.Pgrefill) + `,`,
+		`Pgscan:` + fmt.Sprintf("%v", this.Pgscan) + `,`,
+		`Pgsteal:` + fmt.Sprintf("%v", this.Pgsteal) + `,`,
+		`Pgactivate:` + fmt.Sprintf("%v", this.Pgactivate) + `,`,
+		`Pgdeactivate:` + fmt.Sprintf("%v", this.Pgdeactivate) + `,`,
+		`Pglazyfree:` + fmt.Sprintf("%v", this.Pglazyfree) + `,`,
+		`Pglazyfreed:` + fmt.Sprintf("%v", this.Pglazyfreed) + `,`,
+		`ThpFaultAlloc:` + fmt.Sprintf("%v", this.ThpFaultAlloc) + `,`,
+		`ThpCollapseAlloc:` + fmt.Sprintf("%v", this.ThpCollapseAlloc) + `,`,
+		`Usage:` + fmt.Sprintf("%v", this.Usage) + `,`,
+		`UsageLimit:` + fmt.Sprintf("%v", this.UsageLimit) + `,`,
+		`SwapUsage:` + fmt.Sprintf("%v", this.SwapUsage) + `,`,
+		`SwapLimit:` + fmt.Sprintf("%v", this.SwapLimit) + `,`,
+		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func (this *MemoryEvents) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&MemoryEvents{`,
+		`Low:` + fmt.Sprintf("%v", this.Low) + `,`,
+		`High:` + fmt.Sprintf("%v", this.High) + `,`,
+		`Max:` + fmt.Sprintf("%v", this.Max) + `,`,
+		`Oom:` + fmt.Sprintf("%v", this.Oom) + `,`,
+		`OomKill:` + fmt.Sprintf("%v", this.OomKill) + `,`,
+		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func (this *RdmaStat) String() string {
+	if this == nil {
+		return "nil"
+	}
+	repeatedStringForCurrent := "[]*RdmaEntry{"
+	for _, f := range this.Current {
+		repeatedStringForCurrent += strings.Replace(f.String(), "RdmaEntry", "RdmaEntry", 1) + ","
+	}
+	repeatedStringForCurrent += "}"
+	repeatedStringForLimit := "[]*RdmaEntry{"
+	for _, f := range this.Limit {
+		repeatedStringForLimit += strings.Replace(f.String(), "RdmaEntry", "RdmaEntry", 1) + ","
+	}
+	repeatedStringForLimit += "}"
+	s := strings.Join([]string{`&RdmaStat{`,
+		`Current:` + repeatedStringForCurrent + `,`,
+		`Limit:` + repeatedStringForLimit + `,`,
+		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func (this *RdmaEntry) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&RdmaEntry{`,
+		`Device:` + fmt.Sprintf("%v", this.Device) + `,`,
+		`HcaHandles:` + fmt.Sprintf("%v", this.HcaHandles) + `,`,
+		`HcaObjects:` + fmt.Sprintf("%v", this.HcaObjects) + `,`,
+		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func (this *IOStat) String() string {
+	if this == nil {
+		return "nil"
+	}
+	repeatedStringForUsage := "[]*IOEntry{"
+	for _, f := range this.Usage {
+		repeatedStringForUsage += strings.Replace(f.String(), "IOEntry", "IOEntry", 1) + ","
+	}
+	repeatedStringForUsage += "}"
+	s := strings.Join([]string{`&IOStat{`,
+		`Usage:` + repeatedStringForUsage + `,`,
+		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func (this *IOEntry) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&IOEntry{`,
+		`Major:` + fmt.Sprintf("%v", this.Major) + `,`,
+		`Minor:` + fmt.Sprintf("%v", this.Minor) + `,`,
+		`Rbytes:` + fmt.Sprintf("%v", this.Rbytes) + `,`,
+		`Wbytes:` + fmt.Sprintf("%v", this.Wbytes) + `,`,
+		`Rios:` + fmt.Sprintf("%v", this.Rios) + `,`,
+		`Wios:` + fmt.Sprintf("%v", this.Wios) + `,`,
+		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func (this *HugeTlbStat) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&HugeTlbStat{`,
+		`Current:` + fmt.Sprintf("%v", this.Current) + `,`,
+		`Max:` + fmt.Sprintf("%v", this.Max) + `,`,
+		`Pagesize:` + fmt.Sprintf("%v", this.Pagesize) + `,`,
+		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func valueToStringMetrics(v interface{}) string {
+	rv := reflect.ValueOf(v)
+	if rv.IsNil() {
+		return "nil"
+	}
+	pv := reflect.Indirect(rv).Interface()
+	return fmt.Sprintf("*%v", pv)
+}
+func (m *Metrics) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMetrics
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: Metrics: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: Metrics: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pids", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.Pids == nil {
+				m.Pids = &PidsStat{}
+			}
+			if err := m.Pids.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field CPU", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.CPU == nil {
+				m.CPU = &CPUStat{}
+			}
+			if err := m.CPU.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 4:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Memory", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.Memory == nil {
+				m.Memory = &MemoryStat{}
+			}
+			if err := m.Memory.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 5:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Rdma", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.Rdma == nil {
+				m.Rdma = &RdmaStat{}
+			}
+			if err := m.Rdma.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 6:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Io", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.Io == nil {
+				m.Io = &IOStat{}
+			}
+			if err := m.Io.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 7:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Hugetlb", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Hugetlb = append(m.Hugetlb, &HugeTlbStat{})
+			if err := m.Hugetlb[len(m.Hugetlb)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 8:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field MemoryEvents", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.MemoryEvents == nil {
+				m.MemoryEvents = &MemoryEvents{}
+			}
+			if err := m.MemoryEvents.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMetrics(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *PidsStat) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMetrics
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: PidsStat: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: PidsStat: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Current", wireType)
+			}
+			m.Current = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Current |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 2:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Limit", wireType)
+			}
+			m.Limit = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Limit |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMetrics(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *CPUStat) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMetrics
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: CPUStat: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: CPUStat: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field UsageUsec", wireType)
+			}
+			m.UsageUsec = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.UsageUsec |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 2:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field UserUsec", wireType)
+			}
+			m.UserUsec = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.UserUsec |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 3:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field SystemUsec", wireType)
+			}
+			m.SystemUsec = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.SystemUsec |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 4:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field NrPeriods", wireType)
+			}
+			m.NrPeriods = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.NrPeriods |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 5:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field NrThrottled", wireType)
+			}
+			m.NrThrottled = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.NrThrottled |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 6:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ThrottledUsec", wireType)
+			}
+			m.ThrottledUsec = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.ThrottledUsec |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMetrics(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *MemoryStat) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMetrics
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: MemoryStat: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: MemoryStat: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Anon", wireType)
+			}
+			m.Anon = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Anon |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 2:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field File", wireType)
+			}
+			m.File = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.File |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 3:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field KernelStack", wireType)
+			}
+			m.KernelStack = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.KernelStack |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 4:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Slab", wireType)
+			}
+			m.Slab = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Slab |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 5:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Sock", wireType)
+			}
+			m.Sock = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Sock |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 6:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Shmem", wireType)
+			}
+			m.Shmem = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Shmem |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 7:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field FileMapped", wireType)
+			}
+			m.FileMapped = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.FileMapped |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 8:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field FileDirty", wireType)
+			}
+			m.FileDirty = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.FileDirty |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 9:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field FileWriteback", wireType)
+			}
+			m.FileWriteback = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.FileWriteback |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 10:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field AnonThp", wireType)
+			}
+			m.AnonThp = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.AnonThp |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 11:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field InactiveAnon", wireType)
+			}
+			m.InactiveAnon = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.InactiveAnon |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 12:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ActiveAnon", wireType)
+			}
+			m.ActiveAnon = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.ActiveAnon |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 13:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field InactiveFile", wireType)
+			}
+			m.InactiveFile = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.InactiveFile |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 14:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ActiveFile", wireType)
+			}
+			m.ActiveFile = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.ActiveFile |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 15:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Unevictable", wireType)
+			}
+			m.Unevictable = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Unevictable |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 16:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field SlabReclaimable", wireType)
+			}
+			m.SlabReclaimable = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.SlabReclaimable |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 17:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field SlabUnreclaimable", wireType)
+			}
+			m.SlabUnreclaimable = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.SlabUnreclaimable |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 18:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pgfault", wireType)
+			}
+			m.Pgfault = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Pgfault |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 19:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pgmajfault", wireType)
+			}
+			m.Pgmajfault = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Pgmajfault |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 20:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field WorkingsetRefault", wireType)
+			}
+			m.WorkingsetRefault = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.WorkingsetRefault |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 21:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field WorkingsetActivate", wireType)
+			}
+			m.WorkingsetActivate = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.WorkingsetActivate |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 22:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field WorkingsetNodereclaim", wireType)
+			}
+			m.WorkingsetNodereclaim = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.WorkingsetNodereclaim |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 23:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pgrefill", wireType)
+			}
+			m.Pgrefill = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Pgrefill |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 24:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pgscan", wireType)
+			}
+			m.Pgscan = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Pgscan |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 25:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pgsteal", wireType)
+			}
+			m.Pgsteal = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Pgsteal |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 26:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pgactivate", wireType)
+			}
+			m.Pgactivate = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Pgactivate |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 27:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pgdeactivate", wireType)
+			}
+			m.Pgdeactivate = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Pgdeactivate |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 28:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pglazyfree", wireType)
+			}
+			m.Pglazyfree = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Pglazyfree |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 29:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pglazyfreed", wireType)
+			}
+			m.Pglazyfreed = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Pglazyfreed |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 30:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ThpFaultAlloc", wireType)
+			}
+			m.ThpFaultAlloc = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.ThpFaultAlloc |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 31:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ThpCollapseAlloc", wireType)
+			}
+			m.ThpCollapseAlloc = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.ThpCollapseAlloc |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 32:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Usage", wireType)
+			}
+			m.Usage = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Usage |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 33:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field UsageLimit", wireType)
+			}
+			m.UsageLimit = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.UsageLimit |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 34:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field SwapUsage", wireType)
+			}
+			m.SwapUsage = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.SwapUsage |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 35:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field SwapLimit", wireType)
+			}
+			m.SwapLimit = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.SwapLimit |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMetrics(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *MemoryEvents) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMetrics
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: MemoryEvents: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: MemoryEvents: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Low", wireType)
+			}
+			m.Low = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Low |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 2:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field High", wireType)
+			}
+			m.High = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.High |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 3:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Max", wireType)
+			}
+			m.Max = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Max |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 4:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Oom", wireType)
+			}
+			m.Oom = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Oom |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 5:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field OomKill", wireType)
+			}
+			m.OomKill = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.OomKill |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMetrics(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *RdmaStat) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMetrics
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: RdmaStat: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: RdmaStat: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Current", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Current = append(m.Current, &RdmaEntry{})
+			if err := m.Current[len(m.Current)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Limit", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Limit = append(m.Limit, &RdmaEntry{})
+			if err := m.Limit[len(m.Limit)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMetrics(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *RdmaEntry) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMetrics
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: RdmaEntry: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: RdmaEntry: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Device", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Device = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field HcaHandles", wireType)
+			}
+			m.HcaHandles = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.HcaHandles |= uint32(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 3:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field HcaObjects", wireType)
+			}
+			m.HcaObjects = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.HcaObjects |= uint32(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMetrics(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *IOStat) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMetrics
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: IOStat: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: IOStat: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Usage", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Usage = append(m.Usage, &IOEntry{})
+			if err := m.Usage[len(m.Usage)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMetrics(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *IOEntry) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMetrics
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: IOEntry: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: IOEntry: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Major", wireType)
+			}
+			m.Major = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Major |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 2:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Minor", wireType)
+			}
+			m.Minor = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Minor |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 3:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Rbytes", wireType)
+			}
+			m.Rbytes = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Rbytes |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 4:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Wbytes", wireType)
+			}
+			m.Wbytes = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Wbytes |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 5:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Rios", wireType)
+			}
+			m.Rios = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Rios |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 6:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Wios", wireType)
+			}
+			m.Wios = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Wios |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMetrics(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *HugeTlbStat) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMetrics
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: HugeTlbStat: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: HugeTlbStat: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Current", wireType)
+			}
+			m.Current = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Current |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 2:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Max", wireType)
+			}
+			m.Max = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Max |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 3:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pagesize", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Pagesize = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMetrics(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func skipMetrics(dAtA []byte) (n int, err error) {
+	l := len(dAtA)
+	iNdEx := 0
+	depth := 0
+	for iNdEx < l {
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return 0, ErrIntOverflowMetrics
+			}
+			if iNdEx >= l {
+				return 0, io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		wireType := int(wire & 0x7)
+		switch wireType {
+		case 0:
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				iNdEx++
+				if dAtA[iNdEx-1] < 0x80 {
+					break
+				}
+			}
+		case 1:
+			iNdEx += 8
+		case 2:
+			var length int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				length |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if length < 0 {
+				return 0, ErrInvalidLengthMetrics
+			}
+			iNdEx += length
+		case 3:
+			depth++
+		case 4:
+			if depth == 0 {
+				return 0, ErrUnexpectedEndOfGroupMetrics
+			}
+			depth--
+		case 5:
+			iNdEx += 4
+		default:
+			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
+		}
+		if iNdEx < 0 {
+			return 0, ErrInvalidLengthMetrics
+		}
+		if depth == 0 {
+			return iNdEx, nil
+		}
+	}
+	return 0, io.ErrUnexpectedEOF
+}
+
+var (
+	ErrInvalidLengthMetrics        = fmt.Errorf("proto: negative length found during unmarshaling")
+	ErrIntOverflowMetrics          = fmt.Errorf("proto: integer overflow")
+	ErrUnexpectedEndOfGroupMetrics = fmt.Errorf("proto: unexpected end of group")
+)
diff --git a/vendor/github.com/containerd/cgroups/v2/stats/metrics.pb.txt b/vendor/github.com/containerd/cgroups/v2/stats/metrics.pb.txt
new file mode 100644
index 000000000..59fe27cbf
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/stats/metrics.pb.txt
@@ -0,0 +1,539 @@
+file {
+  name: "github.com/containerd/cgroups/v2/stats/metrics.proto"
+  package: "io.containerd.cgroups.v2"
+  dependency: "gogoproto/gogo.proto"
+  message_type {
+    name: "Metrics"
+    field {
+      name: "pids"
+      number: 1
+      label: LABEL_OPTIONAL
+      type: TYPE_MESSAGE
+      type_name: ".io.containerd.cgroups.v2.PidsStat"
+      json_name: "pids"
+    }
+    field {
+      name: "cpu"
+      number: 2
+      label: LABEL_OPTIONAL
+      type: TYPE_MESSAGE
+      type_name: ".io.containerd.cgroups.v2.CPUStat"
+      options {
+        65004: "CPU"
+      }
+      json_name: "cpu"
+    }
+    field {
+      name: "memory"
+      number: 4
+      label: LABEL_OPTIONAL
+      type: TYPE_MESSAGE
+      type_name: ".io.containerd.cgroups.v2.MemoryStat"
+      json_name: "memory"
+    }
+    field {
+      name: "rdma"
+      number: 5
+      label: LABEL_OPTIONAL
+      type: TYPE_MESSAGE
+      type_name: ".io.containerd.cgroups.v2.RdmaStat"
+      json_name: "rdma"
+    }
+    field {
+      name: "io"
+      number: 6
+      label: LABEL_OPTIONAL
+      type: TYPE_MESSAGE
+      type_name: ".io.containerd.cgroups.v2.IOStat"
+      json_name: "io"
+    }
+    field {
+      name: "hugetlb"
+      number: 7
+      label: LABEL_REPEATED
+      type: TYPE_MESSAGE
+      type_name: ".io.containerd.cgroups.v2.HugeTlbStat"
+      json_name: "hugetlb"
+    }
+    field {
+      name: "memory_events"
+      number: 8
+      label: LABEL_OPTIONAL
+      type: TYPE_MESSAGE
+      type_name: ".io.containerd.cgroups.v2.MemoryEvents"
+      json_name: "memoryEvents"
+    }
+  }
+  message_type {
+    name: "PidsStat"
+    field {
+      name: "current"
+      number: 1
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "current"
+    }
+    field {
+      name: "limit"
+      number: 2
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "limit"
+    }
+  }
+  message_type {
+    name: "CPUStat"
+    field {
+      name: "usage_usec"
+      number: 1
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "usageUsec"
+    }
+    field {
+      name: "user_usec"
+      number: 2
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "userUsec"
+    }
+    field {
+      name: "system_usec"
+      number: 3
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "systemUsec"
+    }
+    field {
+      name: "nr_periods"
+      number: 4
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "nrPeriods"
+    }
+    field {
+      name: "nr_throttled"
+      number: 5
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "nrThrottled"
+    }
+    field {
+      name: "throttled_usec"
+      number: 6
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "throttledUsec"
+    }
+  }
+  message_type {
+    name: "MemoryStat"
+    field {
+      name: "anon"
+      number: 1
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "anon"
+    }
+    field {
+      name: "file"
+      number: 2
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "file"
+    }
+    field {
+      name: "kernel_stack"
+      number: 3
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "kernelStack"
+    }
+    field {
+      name: "slab"
+      number: 4
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "slab"
+    }
+    field {
+      name: "sock"
+      number: 5
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "sock"
+    }
+    field {
+      name: "shmem"
+      number: 6
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "shmem"
+    }
+    field {
+      name: "file_mapped"
+      number: 7
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "fileMapped"
+    }
+    field {
+      name: "file_dirty"
+      number: 8
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "fileDirty"
+    }
+    field {
+      name: "file_writeback"
+      number: 9
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "fileWriteback"
+    }
+    field {
+      name: "anon_thp"
+      number: 10
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "anonThp"
+    }
+    field {
+      name: "inactive_anon"
+      number: 11
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "inactiveAnon"
+    }
+    field {
+      name: "active_anon"
+      number: 12
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "activeAnon"
+    }
+    field {
+      name: "inactive_file"
+      number: 13
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "inactiveFile"
+    }
+    field {
+      name: "active_file"
+      number: 14
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "activeFile"
+    }
+    field {
+      name: "unevictable"
+      number: 15
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "unevictable"
+    }
+    field {
+      name: "slab_reclaimable"
+      number: 16
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "slabReclaimable"
+    }
+    field {
+      name: "slab_unreclaimable"
+      number: 17
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "slabUnreclaimable"
+    }
+    field {
+      name: "pgfault"
+      number: 18
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "pgfault"
+    }
+    field {
+      name: "pgmajfault"
+      number: 19
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "pgmajfault"
+    }
+    field {
+      name: "workingset_refault"
+      number: 20
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "workingsetRefault"
+    }
+    field {
+      name: "workingset_activate"
+      number: 21
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "workingsetActivate"
+    }
+    field {
+      name: "workingset_nodereclaim"
+      number: 22
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "workingsetNodereclaim"
+    }
+    field {
+      name: "pgrefill"
+      number: 23
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "pgrefill"
+    }
+    field {
+      name: "pgscan"
+      number: 24
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "pgscan"
+    }
+    field {
+      name: "pgsteal"
+      number: 25
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "pgsteal"
+    }
+    field {
+      name: "pgactivate"
+      number: 26
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "pgactivate"
+    }
+    field {
+      name: "pgdeactivate"
+      number: 27
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "pgdeactivate"
+    }
+    field {
+      name: "pglazyfree"
+      number: 28
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "pglazyfree"
+    }
+    field {
+      name: "pglazyfreed"
+      number: 29
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "pglazyfreed"
+    }
+    field {
+      name: "thp_fault_alloc"
+      number: 30
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "thpFaultAlloc"
+    }
+    field {
+      name: "thp_collapse_alloc"
+      number: 31
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "thpCollapseAlloc"
+    }
+    field {
+      name: "usage"
+      number: 32
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "usage"
+    }
+    field {
+      name: "usage_limit"
+      number: 33
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "usageLimit"
+    }
+    field {
+      name: "swap_usage"
+      number: 34
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "swapUsage"
+    }
+    field {
+      name: "swap_limit"
+      number: 35
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "swapLimit"
+    }
+  }
+  message_type {
+    name: "MemoryEvents"
+    field {
+      name: "low"
+      number: 1
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "low"
+    }
+    field {
+      name: "high"
+      number: 2
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "high"
+    }
+    field {
+      name: "max"
+      number: 3
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "max"
+    }
+    field {
+      name: "oom"
+      number: 4
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "oom"
+    }
+    field {
+      name: "oom_kill"
+      number: 5
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "oomKill"
+    }
+  }
+  message_type {
+    name: "RdmaStat"
+    field {
+      name: "current"
+      number: 1
+      label: LABEL_REPEATED
+      type: TYPE_MESSAGE
+      type_name: ".io.containerd.cgroups.v2.RdmaEntry"
+      json_name: "current"
+    }
+    field {
+      name: "limit"
+      number: 2
+      label: LABEL_REPEATED
+      type: TYPE_MESSAGE
+      type_name: ".io.containerd.cgroups.v2.RdmaEntry"
+      json_name: "limit"
+    }
+  }
+  message_type {
+    name: "RdmaEntry"
+    field {
+      name: "device"
+      number: 1
+      label: LABEL_OPTIONAL
+      type: TYPE_STRING
+      json_name: "device"
+    }
+    field {
+      name: "hca_handles"
+      number: 2
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT32
+      json_name: "hcaHandles"
+    }
+    field {
+      name: "hca_objects"
+      number: 3
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT32
+      json_name: "hcaObjects"
+    }
+  }
+  message_type {
+    name: "IOStat"
+    field {
+      name: "usage"
+      number: 1
+      label: LABEL_REPEATED
+      type: TYPE_MESSAGE
+      type_name: ".io.containerd.cgroups.v2.IOEntry"
+      json_name: "usage"
+    }
+  }
+  message_type {
+    name: "IOEntry"
+    field {
+      name: "major"
+      number: 1
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "major"
+    }
+    field {
+      name: "minor"
+      number: 2
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "minor"
+    }
+    field {
+      name: "rbytes"
+      number: 3
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "rbytes"
+    }
+    field {
+      name: "wbytes"
+      number: 4
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "wbytes"
+    }
+    field {
+      name: "rios"
+      number: 5
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "rios"
+    }
+    field {
+      name: "wios"
+      number: 6
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "wios"
+    }
+  }
+  message_type {
+    name: "HugeTlbStat"
+    field {
+      name: "current"
+      number: 1
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "current"
+    }
+    field {
+      name: "max"
+      number: 2
+      label: LABEL_OPTIONAL
+      type: TYPE_UINT64
+      json_name: "max"
+    }
+    field {
+      name: "pagesize"
+      number: 3
+      label: LABEL_OPTIONAL
+      type: TYPE_STRING
+      json_name: "pagesize"
+    }
+  }
+  syntax: "proto3"
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/stats/metrics.proto b/vendor/github.com/containerd/cgroups/v2/stats/metrics.proto
new file mode 100644
index 000000000..8ac472e46
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/stats/metrics.proto
@@ -0,0 +1,105 @@
+syntax = "proto3";
+
+package io.containerd.cgroups.v2;
+
+ import "gogoproto/gogo.proto";
+
+message Metrics {
+	PidsStat pids = 1;
+	CPUStat cpu = 2 [(gogoproto.customname) = "CPU"];
+	MemoryStat memory = 4;
+	RdmaStat rdma = 5;
+	IOStat io = 6;
+	repeated HugeTlbStat hugetlb = 7;
+	MemoryEvents memory_events = 8;
+}
+
+message PidsStat {
+	uint64 current = 1;
+	uint64 limit = 2;
+}
+
+message CPUStat {
+	uint64 usage_usec  = 1;
+	uint64 user_usec = 2;
+	uint64 system_usec = 3;
+	uint64 nr_periods = 4;
+	uint64 nr_throttled = 5;
+	uint64 throttled_usec = 6;
+}
+
+message MemoryStat {
+	uint64 anon = 1;
+	uint64 file = 2;
+	uint64 kernel_stack = 3;
+	uint64 slab = 4;
+	uint64 sock = 5;
+	uint64 shmem = 6;
+	uint64 file_mapped = 7;
+	uint64 file_dirty = 8;
+	uint64 file_writeback = 9;
+	uint64 anon_thp = 10;
+	uint64 inactive_anon = 11;
+	uint64 active_anon = 12;
+	uint64 inactive_file = 13;
+	uint64 active_file = 14;
+	uint64 unevictable = 15;
+	uint64 slab_reclaimable = 16;
+	uint64 slab_unreclaimable = 17;
+	uint64 pgfault = 18;
+	uint64 pgmajfault = 19;
+	uint64 workingset_refault = 20;
+	uint64 workingset_activate = 21;
+	uint64 workingset_nodereclaim = 22;
+	uint64 pgrefill = 23;
+	uint64 pgscan = 24;
+	uint64 pgsteal = 25;
+	uint64 pgactivate = 26;
+	uint64 pgdeactivate = 27;
+	uint64 pglazyfree = 28;
+	uint64 pglazyfreed = 29;
+	uint64 thp_fault_alloc = 30;
+	uint64 thp_collapse_alloc = 31;
+	uint64 usage = 32;
+	uint64 usage_limit = 33;
+	uint64 swap_usage = 34;
+	uint64 swap_limit = 35;
+}
+
+message MemoryEvents {
+	uint64 low = 1;
+	uint64 high = 2;
+	uint64 max = 3;
+	uint64 oom = 4;
+	uint64 oom_kill = 5;
+}
+
+message RdmaStat {
+	repeated RdmaEntry current = 1;
+	repeated RdmaEntry limit = 2;
+}
+
+message RdmaEntry {
+	string device = 1;
+	uint32 hca_handles = 2;
+	uint32 hca_objects = 3;
+}
+
+message IOStat {
+	repeated IOEntry usage = 1;
+}
+
+message IOEntry {
+	uint64 major = 1;
+	uint64 minor = 2;
+	uint64 rbytes = 3;
+	uint64 wbytes = 4;
+	uint64 rios = 5;
+	uint64 wios = 6;
+}
+
+message HugeTlbStat {
+	uint64 current = 1;
+	uint64 max = 2;
+	string pagesize = 3;
+}
diff --git a/vendor/github.com/containerd/cgroups/v2/utils.go b/vendor/github.com/containerd/cgroups/v2/utils.go
new file mode 100644
index 000000000..240c92677
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/v2/utils.go
@@ -0,0 +1,436 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"math"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/containerd/cgroups/v2/stats"
+
+	"github.com/godbus/dbus/v5"
+	"github.com/opencontainers/runtime-spec/specs-go"
+	"github.com/sirupsen/logrus"
+)
+
+const (
+	cgroupProcs    = "cgroup.procs"
+	defaultDirPerm = 0755
+)
+
+// defaultFilePerm is a var so that the test framework can change the filemode
+// of all files created when the tests are running.  The difference between the
+// tests and real world use is that files like "cgroup.procs" will exist when writing
+// to a read cgroup filesystem and do not exist prior when running in the tests.
+// this is set to a non 0 value in the test code
+var defaultFilePerm = os.FileMode(0)
+
+// remove will remove a cgroup path handling EAGAIN and EBUSY errors and
+// retrying the remove after a exp timeout
+func remove(path string) error {
+	var err error
+	delay := 10 * time.Millisecond
+	for i := 0; i < 5; i++ {
+		if i != 0 {
+			time.Sleep(delay)
+			delay *= 2
+		}
+		if err = os.RemoveAll(path); err == nil {
+			return nil
+		}
+	}
+	return fmt.Errorf("cgroups: unable to remove path %q: %w", path, err)
+}
+
+// parseCgroupProcsFile parses /sys/fs/cgroup/$GROUPPATH/cgroup.procs
+func parseCgroupProcsFile(path string) ([]uint64, error) {
+	f, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	var (
+		out []uint64
+		s   = bufio.NewScanner(f)
+	)
+	for s.Scan() {
+		if t := s.Text(); t != "" {
+			pid, err := strconv.ParseUint(t, 10, 0)
+			if err != nil {
+				return nil, err
+			}
+			out = append(out, pid)
+		}
+	}
+	if err := s.Err(); err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func parseKV(raw string) (string, interface{}, error) {
+	parts := strings.Fields(raw)
+	switch len(parts) {
+	case 2:
+		v, err := parseUint(parts[1], 10, 64)
+		if err != nil {
+			// if we cannot parse as a uint, parse as a string
+			return parts[0], parts[1], nil
+		}
+		return parts[0], v, nil
+	default:
+		return "", 0, ErrInvalidFormat
+	}
+}
+
+func parseUint(s string, base, bitSize int) (uint64, error) {
+	v, err := strconv.ParseUint(s, base, bitSize)
+	if err != nil {
+		intValue, intErr := strconv.ParseInt(s, base, bitSize)
+		// 1. Handle negative values greater than MinInt64 (and)
+		// 2. Handle negative values lesser than MinInt64
+		if intErr == nil && intValue < 0 {
+			return 0, nil
+		} else if intErr != nil &&
+			intErr.(*strconv.NumError).Err == strconv.ErrRange &&
+			intValue < 0 {
+			return 0, nil
+		}
+		return 0, err
+	}
+	return v, nil
+}
+
+// parseCgroupFile parses /proc/PID/cgroup file and return string
+func parseCgroupFile(path string) (string, error) {
+	f, err := os.Open(path)
+	if err != nil {
+		return "", err
+	}
+	defer f.Close()
+	return parseCgroupFromReader(f)
+}
+
+func parseCgroupFromReader(r io.Reader) (string, error) {
+	var (
+		s = bufio.NewScanner(r)
+	)
+	for s.Scan() {
+		var (
+			text  = s.Text()
+			parts = strings.SplitN(text, ":", 3)
+		)
+		if len(parts) < 3 {
+			return "", fmt.Errorf("invalid cgroup entry: %q", text)
+		}
+		// text is like "0::/user.slice/user-1001.slice/session-1.scope"
+		if parts[0] == "0" && parts[1] == "" {
+			return parts[2], nil
+		}
+	}
+	if err := s.Err(); err != nil {
+		return "", err
+	}
+	return "", fmt.Errorf("cgroup path not found")
+}
+
+// ToResources converts the oci LinuxResources struct into a
+// v2 Resources type for use with this package.
+//
+// converting cgroups configuration from v1 to v2
+// ref: https://github.com/containers/crun/blob/master/crun.1.md#cgroup-v2
+func ToResources(spec *specs.LinuxResources) *Resources {
+	var resources Resources
+	if cpu := spec.CPU; cpu != nil {
+		resources.CPU = &CPU{
+			Cpus: cpu.Cpus,
+			Mems: cpu.Mems,
+		}
+		if shares := cpu.Shares; shares != nil {
+			convertedWeight := 1 + ((*shares-2)*9999)/262142
+			resources.CPU.Weight = &convertedWeight
+		}
+		if period := cpu.Period; period != nil {
+			resources.CPU.Max = NewCPUMax(cpu.Quota, period)
+		}
+	}
+	if mem := spec.Memory; mem != nil {
+		resources.Memory = &Memory{}
+		if swap := mem.Swap; swap != nil {
+			resources.Memory.Swap = swap
+		}
+		if l := mem.Limit; l != nil {
+			resources.Memory.Max = l
+		}
+		if l := mem.Reservation; l != nil {
+			resources.Memory.Low = l
+		}
+	}
+	if hugetlbs := spec.HugepageLimits; hugetlbs != nil {
+		hugeTlbUsage := HugeTlb{}
+		for _, hugetlb := range hugetlbs {
+			hugeTlbUsage = append(hugeTlbUsage, HugeTlbEntry{
+				HugePageSize: hugetlb.Pagesize,
+				Limit:        hugetlb.Limit,
+			})
+		}
+		resources.HugeTlb = &hugeTlbUsage
+	}
+	if pids := spec.Pids; pids != nil {
+		resources.Pids = &Pids{
+			Max: pids.Limit,
+		}
+	}
+	if i := spec.BlockIO; i != nil {
+		resources.IO = &IO{}
+		if i.Weight != nil {
+			resources.IO.BFQ.Weight = 1 + (*i.Weight-10)*9999/990
+		}
+		for t, devices := range map[IOType][]specs.LinuxThrottleDevice{
+			ReadBPS:   i.ThrottleReadBpsDevice,
+			WriteBPS:  i.ThrottleWriteBpsDevice,
+			ReadIOPS:  i.ThrottleReadIOPSDevice,
+			WriteIOPS: i.ThrottleWriteIOPSDevice,
+		} {
+			for _, d := range devices {
+				resources.IO.Max = append(resources.IO.Max, Entry{
+					Type:  t,
+					Major: d.Major,
+					Minor: d.Minor,
+					Rate:  d.Rate,
+				})
+			}
+		}
+	}
+	if i := spec.Rdma; i != nil {
+		resources.RDMA = &RDMA{}
+		for device, value := range spec.Rdma {
+			if device != "" && (value.HcaHandles != nil && value.HcaObjects != nil) {
+				resources.RDMA.Limit = append(resources.RDMA.Limit, RDMAEntry{
+					Device:     device,
+					HcaHandles: *value.HcaHandles,
+					HcaObjects: *value.HcaObjects,
+				})
+			}
+		}
+	}
+
+	return &resources
+}
+
+// Gets uint64 parsed content of single value cgroup stat file
+func getStatFileContentUint64(filePath string) uint64 {
+	contents, err := ioutil.ReadFile(filePath)
+	if err != nil {
+		return 0
+	}
+	trimmed := strings.TrimSpace(string(contents))
+	if trimmed == "max" {
+		return math.MaxUint64
+	}
+
+	res, err := parseUint(trimmed, 10, 64)
+	if err != nil {
+		logrus.Errorf("unable to parse %q as a uint from Cgroup file %q", string(contents), filePath)
+		return res
+	}
+
+	return res
+}
+
+func readIoStats(path string) []*stats.IOEntry {
+	// more details on the io.stat file format: https://www.kernel.org/doc/Documentation/cgroup-v2.txt
+	var usage []*stats.IOEntry
+	fpath := filepath.Join(path, "io.stat")
+	currentData, err := ioutil.ReadFile(fpath)
+	if err != nil {
+		return usage
+	}
+	entries := strings.Split(string(currentData), "\n")
+
+	for _, entry := range entries {
+		parts := strings.Split(entry, " ")
+		if len(parts) < 2 {
+			continue
+		}
+		majmin := strings.Split(parts[0], ":")
+		if len(majmin) != 2 {
+			continue
+		}
+		major, err := strconv.ParseUint(majmin[0], 10, 0)
+		if err != nil {
+			return usage
+		}
+		minor, err := strconv.ParseUint(majmin[1], 10, 0)
+		if err != nil {
+			return usage
+		}
+		parts = parts[1:]
+		ioEntry := stats.IOEntry{
+			Major: major,
+			Minor: minor,
+		}
+		for _, s := range parts {
+			keyPairValue := strings.Split(s, "=")
+			if len(keyPairValue) != 2 {
+				continue
+			}
+			v, err := strconv.ParseUint(keyPairValue[1], 10, 0)
+			if err != nil {
+				continue
+			}
+			switch keyPairValue[0] {
+			case "rbytes":
+				ioEntry.Rbytes = v
+			case "wbytes":
+				ioEntry.Wbytes = v
+			case "rios":
+				ioEntry.Rios = v
+			case "wios":
+				ioEntry.Wios = v
+			}
+		}
+		usage = append(usage, &ioEntry)
+	}
+	return usage
+}
+
+func rdmaStats(filepath string) []*stats.RdmaEntry {
+	currentData, err := ioutil.ReadFile(filepath)
+	if err != nil {
+		return []*stats.RdmaEntry{}
+	}
+	return toRdmaEntry(strings.Split(string(currentData), "\n"))
+}
+
+func parseRdmaKV(raw string, entry *stats.RdmaEntry) {
+	var value uint64
+	var err error
+
+	parts := strings.Split(raw, "=")
+	switch len(parts) {
+	case 2:
+		if parts[1] == "max" {
+			value = math.MaxUint32
+		} else {
+			value, err = parseUint(parts[1], 10, 32)
+			if err != nil {
+				return
+			}
+		}
+		if parts[0] == "hca_handle" {
+			entry.HcaHandles = uint32(value)
+		} else if parts[0] == "hca_object" {
+			entry.HcaObjects = uint32(value)
+		}
+	}
+}
+
+func toRdmaEntry(strEntries []string) []*stats.RdmaEntry {
+	var rdmaEntries []*stats.RdmaEntry
+	for i := range strEntries {
+		parts := strings.Fields(strEntries[i])
+		switch len(parts) {
+		case 3:
+			entry := new(stats.RdmaEntry)
+			entry.Device = parts[0]
+			parseRdmaKV(parts[1], entry)
+			parseRdmaKV(parts[2], entry)
+
+			rdmaEntries = append(rdmaEntries, entry)
+		default:
+			continue
+		}
+	}
+	return rdmaEntries
+}
+
+// isUnitExists returns true if the error is that a systemd unit already exists.
+func isUnitExists(err error) bool {
+	if err != nil {
+		if dbusError, ok := err.(dbus.Error); ok {
+			return strings.Contains(dbusError.Name, "org.freedesktop.systemd1.UnitExists")
+		}
+	}
+	return false
+}
+
+func systemdUnitFromPath(path string) string {
+	_, unit := filepath.Split(path)
+	return unit
+}
+
+func readHugeTlbStats(path string) []*stats.HugeTlbStat {
+	var usage = []*stats.HugeTlbStat{}
+	var keyUsage = make(map[string]*stats.HugeTlbStat)
+	f, err := os.Open(path)
+	if err != nil {
+		return usage
+	}
+	files, err := f.Readdir(-1)
+	f.Close()
+	if err != nil {
+		return usage
+	}
+
+	for _, file := range files {
+		if strings.Contains(file.Name(), "hugetlb") &&
+			(strings.HasSuffix(file.Name(), "max") || strings.HasSuffix(file.Name(), "current")) {
+			var hugeTlb *stats.HugeTlbStat
+			var ok bool
+			fileName := strings.Split(file.Name(), ".")
+			pageSize := fileName[1]
+			if hugeTlb, ok = keyUsage[pageSize]; !ok {
+				hugeTlb = &stats.HugeTlbStat{}
+			}
+			hugeTlb.Pagesize = pageSize
+			out, err := ioutil.ReadFile(filepath.Join(path, file.Name()))
+			if err != nil {
+				continue
+			}
+			var value uint64
+			stringVal := strings.TrimSpace(string(out))
+			if stringVal == "max" {
+				value = math.MaxUint64
+			} else {
+				value, err = strconv.ParseUint(stringVal, 10, 64)
+			}
+			if err != nil {
+				continue
+			}
+			switch fileName[2] {
+			case "max":
+				hugeTlb.Max = value
+			case "current":
+				hugeTlb.Current = value
+			}
+			keyUsage[pageSize] = hugeTlb
+		}
+	}
+	for _, entry := range keyUsage {
+		usage = append(usage, entry)
+	}
+	return usage
+}