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-rw-r--r--t/perf/README2
-rwxr-xr-xt/perf/p0001-rev-list.sh12
-rwxr-xr-xt/perf/p0002-read-cache.sh14
-rwxr-xr-xt/perf/p4001-diff-no-index.sh22
-rwxr-xr-xt/perf/p4211-line-log.sh34
-rwxr-xr-xt/perf/p5302-pack-index.sh2
-rwxr-xr-xt/perf/p5310-pack-bitmaps.sh60
-rw-r--r--t/perf/perf-lib.sh11
8 files changed, 151 insertions, 6 deletions
diff --git a/t/perf/README b/t/perf/README
index c552f561bf..8848c14619 100644
--- a/t/perf/README
+++ b/t/perf/README
@@ -66,7 +66,7 @@ You can set the following variables (also in your config.mak):
GIT_PERF_LARGE_REPO
Repositories to copy for the performance tests. The normal
repo should be at least git.git size. The large repo should
- probably be about linux-2.6.git size for optimal results.
+ probably be about linux.git size for optimal results.
Both default to the git.git you are running from.
You can also pass the options taken by ordinary git tests; the most
diff --git a/t/perf/p0001-rev-list.sh b/t/perf/p0001-rev-list.sh
index 4f71a63b0a..16359d51ae 100755
--- a/t/perf/p0001-rev-list.sh
+++ b/t/perf/p0001-rev-list.sh
@@ -14,4 +14,16 @@ test_perf 'rev-list --all --objects' '
git rev-list --all --objects >/dev/null
'
+test_expect_success 'create new unreferenced commit' '
+ commit=$(git commit-tree HEAD^{tree} -p HEAD)
+'
+
+test_perf 'rev-list $commit --not --all' '
+ git rev-list $commit --not --all >/dev/null
+'
+
+test_perf 'rev-list --objects $commit --not --all' '
+ git rev-list --objects $commit --not --all >/dev/null
+'
+
test_done
diff --git a/t/perf/p0002-read-cache.sh b/t/perf/p0002-read-cache.sh
new file mode 100755
index 0000000000..9180ae9343
--- /dev/null
+++ b/t/perf/p0002-read-cache.sh
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+test_description="Tests performance of reading the index"
+
+. ./perf-lib.sh
+
+test_perf_default_repo
+
+count=1000
+test_perf "read_cache/discard_cache $count times" "
+ test-read-cache $count
+"
+
+test_done
diff --git a/t/perf/p4001-diff-no-index.sh b/t/perf/p4001-diff-no-index.sh
new file mode 100755
index 0000000000..683be6984f
--- /dev/null
+++ b/t/perf/p4001-diff-no-index.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+test_description="Test diff --no-index performance"
+
+. ./perf-lib.sh
+
+test_perf_large_repo
+test_checkout_worktree
+
+file1=$(git ls-files | tail -n 2 | head -1)
+file2=$(git ls-files | tail -n 1 | head -1)
+
+test_expect_success "empty files, so they take no time to diff" "
+ echo >$file1 &&
+ echo >$file2
+"
+
+test_perf "diff --no-index" "
+ git diff --no-index $file1 $file2 >/dev/null
+"
+
+test_done
diff --git a/t/perf/p4211-line-log.sh b/t/perf/p4211-line-log.sh
new file mode 100755
index 0000000000..3d074b0e41
--- /dev/null
+++ b/t/perf/p4211-line-log.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+
+test_description='Tests log -L performance'
+. ./perf-lib.sh
+
+test_perf_default_repo
+
+# Pick a file to log pseudo-randomly. The sort key is the blob hash,
+# so it is stable.
+test_expect_success 'select a file' '
+ git ls-tree HEAD | grep ^100644 |
+ sort -k 3 | head -1 | cut -f 2 >filelist
+'
+
+file=$(cat filelist)
+export file
+
+test_perf 'git rev-list --topo-order (baseline)' '
+ git rev-list --topo-order HEAD >/dev/null
+'
+
+test_perf 'git log --follow (baseline for -M)' '
+ git log --oneline --follow -- "$file" >/dev/null
+'
+
+test_perf 'git log -L' '
+ git log -L 1:"$file" >/dev/null
+'
+
+test_perf 'git log -M -L' '
+ git log -M -L 1:"$file" >/dev/null
+'
+
+test_done
diff --git a/t/perf/p5302-pack-index.sh b/t/perf/p5302-pack-index.sh
index 6cb5b0d55b..5ee9211f98 100755
--- a/t/perf/p5302-pack-index.sh
+++ b/t/perf/p5302-pack-index.sh
@@ -8,7 +8,7 @@ test_perf_large_repo
test_expect_success 'repack' '
git repack -ad &&
- PACK=`ls .git/objects/pack/*.pack | head -n1` &&
+ PACK=$(ls .git/objects/pack/*.pack | head -n1) &&
test -f "$PACK" &&
export PACK
'
diff --git a/t/perf/p5310-pack-bitmaps.sh b/t/perf/p5310-pack-bitmaps.sh
new file mode 100755
index 0000000000..f8ed8573b7
--- /dev/null
+++ b/t/perf/p5310-pack-bitmaps.sh
@@ -0,0 +1,60 @@
+#!/bin/sh
+
+test_description='Tests pack performance using bitmaps'
+. ./perf-lib.sh
+
+test_perf_large_repo
+
+# note that we do everything through config,
+# since we want to be able to compare bitmap-aware
+# git versus non-bitmap git
+#
+# We intentionally use the deprecated pack.writebitmaps
+# config so that we can test against older versions of git.
+test_expect_success 'setup bitmap config' '
+ git config pack.writebitmaps true &&
+ git config pack.writebitmaphashcache true
+'
+
+test_perf 'repack to disk' '
+ git repack -ad
+'
+
+test_perf 'simulated clone' '
+ git pack-objects --stdout --all </dev/null >/dev/null
+'
+
+test_perf 'simulated fetch' '
+ have=$(git rev-list HEAD~100 -1) &&
+ {
+ echo HEAD &&
+ echo ^$have
+ } | git pack-objects --revs --stdout >/dev/null
+'
+
+test_expect_success 'create partial bitmap state' '
+ # pick a commit to represent the repo tip in the past
+ cutoff=$(git rev-list HEAD~100 -1) &&
+ orig_tip=$(git rev-parse HEAD) &&
+
+ # now kill off all of the refs and pretend we had
+ # just the one tip
+ rm -rf .git/logs .git/refs/* .git/packed-refs
+ git update-ref HEAD $cutoff
+
+ # and then repack, which will leave us with a nice
+ # big bitmap pack of the "old" history, and all of
+ # the new history will be loose, as if it had been pushed
+ # up incrementally and exploded via unpack-objects
+ git repack -Ad
+
+ # and now restore our original tip, as if the pushes
+ # had happened
+ git update-ref HEAD $orig_tip
+'
+
+test_perf 'partial bitmap' '
+ git pack-objects --stdout --all </dev/null >/dev/null
+'
+
+test_done
diff --git a/t/perf/perf-lib.sh b/t/perf/perf-lib.sh
index a816fbcb76..a8c9574291 100644
--- a/t/perf/perf-lib.sh
+++ b/t/perf/perf-lib.sh
@@ -1,4 +1,6 @@
-#!/bin/sh
+# Performance testing framework. Each perf script starts much like
+# a normal test script, except it sources this library instead of
+# test-lib.sh. See t/perf/README for documentation.
#
# Copyright (c) 2011 Thomas Rast
#
@@ -150,6 +152,7 @@ exit $ret' >&3 2>&4
test_perf () {
+ test_start_
test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq=
test "$#" = 2 ||
error "bug in the test script: not 2 or 3 parameters to test-expect-success"
@@ -160,7 +163,7 @@ test_perf () {
echo "$test_count" >>"$perf_results_dir"/$base.subtests
echo "$1" >"$perf_results_dir"/$base.$test_count.descr
if test -z "$verbose"; then
- echo -n "perf $test_count - $1:"
+ printf "%s" "perf $test_count - $1:"
else
echo "perf $test_count - $1:"
fi
@@ -169,7 +172,7 @@ test_perf () {
if test_run_perf_ "$2"
then
if test -z "$verbose"; then
- echo -n " $i"
+ printf " %s" "$i"
else
echo "* timing run $i/$GIT_PERF_REPEAT_COUNT:"
fi
@@ -187,7 +190,7 @@ test_perf () {
base="$perf_results_dir"/"$perf_results_prefix$(basename "$0" .sh)"."$test_count"
"$TEST_DIRECTORY"/perf/min_time.perl test_time.* >"$base".times
fi
- echo >&3 ""
+ test_finish_
}
# We extend test_done to print timings at the end (./run disables this