diff options
Diffstat (limited to 't/perf')
| -rwxr-xr-x | t/perf/p0001-rev-list.sh | 3 | ||||
| -rwxr-xr-x | t/perf/p0003-delta-base-cache.sh | 31 | ||||
| -rw-r--r-- | t/perf/p0004-lazy-init-name-hash.sh | 19 | ||||
| -rwxr-xr-x | t/perf/p0071-sort.sh | 26 | ||||
| -rwxr-xr-x | t/perf/p5302-pack-index.sh | 7 | ||||
| -rwxr-xr-x | t/perf/p5310-pack-bitmaps.sh | 14 | ||||
| -rwxr-xr-x | t/perf/p5550-fetch-tags.sh | 99 | ||||
| -rwxr-xr-x | t/perf/p7000-filter-branch.sh | 5 | ||||
| -rw-r--r-- | t/perf/perf-lib.sh | 4 | ||||
| -rwxr-xr-x | t/perf/run | 11 |
10 files changed, 214 insertions, 5 deletions
diff --git a/t/perf/p0001-rev-list.sh b/t/perf/p0001-rev-list.sh index 16359d51ae..ebf172401b 100755 --- a/t/perf/p0001-rev-list.sh +++ b/t/perf/p0001-rev-list.sh @@ -15,7 +15,8 @@ test_perf 'rev-list --all --objects' ' ' test_expect_success 'create new unreferenced commit' ' - commit=$(git commit-tree HEAD^{tree} -p HEAD) + commit=$(git commit-tree HEAD^{tree} -p HEAD) && + test_export commit ' test_perf 'rev-list $commit --not --all' ' diff --git a/t/perf/p0003-delta-base-cache.sh b/t/perf/p0003-delta-base-cache.sh new file mode 100755 index 0000000000..62369eaaf0 --- /dev/null +++ b/t/perf/p0003-delta-base-cache.sh @@ -0,0 +1,31 @@ +#!/bin/sh + +test_description='Test operations that emphasize the delta base cache. + +We look at both "log --raw", which should put only trees into the delta cache, +and "log -Sfoo --raw", which should look at both trees and blobs. + +Any effects will be emphasized if the test repository is fully packed (loose +objects obviously do not use the delta base cache at all). It is also +emphasized if the pack has long delta chains (e.g., as produced by "gc +--aggressive"), though cache is still quite noticeable even with the default +depth of 50. + +The setting of core.deltaBaseCacheLimit in the source repository is also +relevant (depending on the size of your test repo), so be sure it is consistent +between runs. +' +. ./perf-lib.sh + +test_perf_large_repo + +# puts mostly trees into the delta base cache +test_perf 'log --raw' ' + git log --raw >/dev/null +' + +test_perf 'log -S' ' + git log --raw -Sfoo >/dev/null +' + +test_done diff --git a/t/perf/p0004-lazy-init-name-hash.sh b/t/perf/p0004-lazy-init-name-hash.sh new file mode 100644 index 0000000000..5afa8c8df3 --- /dev/null +++ b/t/perf/p0004-lazy-init-name-hash.sh @@ -0,0 +1,19 @@ +#!/bin/sh + +test_description='Tests multi-threaded lazy_init_name_hash' +. ./perf-lib.sh + +test_perf_large_repo +test_checkout_worktree + +test_expect_success 'verify both methods build the same hashmaps' ' + $GIT_BUILD_DIR/t/helper/test-lazy-init-name-hash$X --dump --single | sort >out.single && + $GIT_BUILD_DIR/t/helper/test-lazy-init-name-hash$X --dump --multi | sort >out.multi && + test_cmp out.single out.multi +' + +test_expect_success 'multithreaded should be faster' ' + $GIT_BUILD_DIR/t/helper/test-lazy-init-name-hash$X --perf >out.perf +' + +test_done diff --git a/t/perf/p0071-sort.sh b/t/perf/p0071-sort.sh new file mode 100755 index 0000000000..7c9a35a646 --- /dev/null +++ b/t/perf/p0071-sort.sh @@ -0,0 +1,26 @@ +#!/bin/sh + +test_description='Basic sort performance tests' +. ./perf-lib.sh + +test_perf_default_repo + +test_expect_success 'setup' ' + git ls-files --stage "*.[ch]" "*.sh" | + cut -f2 -d" " | + git cat-file --batch >unsorted +' + +test_perf 'sort(1)' ' + sort <unsorted >expect +' + +test_perf 'string_list_sort()' ' + test-string-list sort <unsorted >actual +' + +test_expect_success 'string_list_sort() sorts like sort(1)' ' + test_cmp_bin expect actual +' + +test_done diff --git a/t/perf/p5302-pack-index.sh b/t/perf/p5302-pack-index.sh index 5ee9211f98..99bdb16c85 100755 --- a/t/perf/p5302-pack-index.sh +++ b/t/perf/p5302-pack-index.sh @@ -13,6 +13,13 @@ test_expect_success 'repack' ' export PACK ' +test_expect_success 'create target repositories' ' + for repo in t1 t2 t3 t4 t5 t6 + do + git init --bare $repo + done +' + test_perf 'index-pack 0 threads' ' GIT_DIR=t1 git index-pack --threads=1 --stdin < $PACK ' diff --git a/t/perf/p5310-pack-bitmaps.sh b/t/perf/p5310-pack-bitmaps.sh index de2a224a36..bb91dbb173 100755 --- a/t/perf/p5310-pack-bitmaps.sh +++ b/t/perf/p5310-pack-bitmaps.sh @@ -32,6 +32,14 @@ test_perf 'simulated fetch' ' } | git pack-objects --revs --stdout >/dev/null ' +test_perf 'pack to file' ' + git pack-objects --all pack1 </dev/null >/dev/null +' + +test_perf 'pack to file (bitmap)' ' + git pack-objects --use-bitmap-index --all pack1b </dev/null >/dev/null +' + test_expect_success 'create partial bitmap state' ' # pick a commit to represent the repo tip in the past cutoff=$(git rev-list HEAD~100 -1) && @@ -53,8 +61,12 @@ test_expect_success 'create partial bitmap state' ' git update-ref HEAD $orig_tip ' -test_perf 'partial bitmap' ' +test_perf 'clone (partial bitmap)' ' git pack-objects --stdout --all </dev/null >/dev/null ' +test_perf 'pack to file (partial bitmap)' ' + git pack-objects --use-bitmap-index --all pack2b </dev/null >/dev/null +' + test_done diff --git a/t/perf/p5550-fetch-tags.sh b/t/perf/p5550-fetch-tags.sh new file mode 100755 index 0000000000..a5dc39f86a --- /dev/null +++ b/t/perf/p5550-fetch-tags.sh @@ -0,0 +1,99 @@ +#!/bin/sh + +test_description='performance of tag-following with many tags + +This tests a fairly pathological case, so rather than rely on a real-world +case, we will construct our own repository. The situation is roughly as +follows. + +The parent repository has a large number of tags which are disconnected from +the rest of history. That makes them candidates for tag-following, but we never +actually grab them (and thus they will impact each subsequent fetch). + +The child repository is a clone of parent, without the tags, and is at least +one commit behind the parent (meaning that we will fetch one object and then +examine the tags to see if they need followed). Furthermore, it has a large +number of packs. + +The exact values of "large" here are somewhat arbitrary; I picked values that +start to show a noticeable performance problem on my machine, but without +taking too long to set up and run the tests. +' +. ./perf-lib.sh + +# make a long nonsense history on branch $1, consisting of $2 commits, each +# with a unique file pointing to the blob at $2. +create_history () { + perl -le ' + my ($branch, $n, $blob) = @ARGV; + for (1..$n) { + print "commit refs/heads/$branch"; + print "committer nobody <nobody@example.com> now"; + print "data 4"; + print "foo"; + print "M 100644 $blob $_"; + } + ' "$@" | + git fast-import --date-format=now +} + +# make a series of tags, one per commit in the revision range given by $@ +create_tags () { + git rev-list "$@" | + perl -lne 'print "create refs/tags/$. $_"' | + git update-ref --stdin +} + +# create $1 nonsense packs, each with a single blob +create_packs () { + perl -le ' + my ($n) = @ARGV; + for (1..$n) { + print "blob"; + print "data <<EOF"; + print "$_"; + print "EOF"; + } + ' "$@" | + git fast-import && + + git cat-file --batch-all-objects --batch-check='%(objectname)' | + while read sha1 + do + echo $sha1 | git pack-objects .git/objects/pack/pack + done +} + +test_expect_success 'create parent and child' ' + git init parent && + git -C parent commit --allow-empty -m base && + git clone parent child && + git -C parent commit --allow-empty -m trigger-fetch +' + +test_expect_success 'populate parent tags' ' + ( + cd parent && + blob=$(echo content | git hash-object -w --stdin) && + create_history cruft 3000 $blob && + create_tags cruft && + git branch -D cruft + ) +' + +test_expect_success 'create child packs' ' + ( + cd child && + git config gc.auto 0 && + git config gc.autopacklimit 0 && + create_packs 500 + ) +' + +test_perf 'fetch' ' + # make sure there is something to fetch on each iteration + git -C child update-ref -d refs/remotes/origin/master && + git -C child fetch +' + +test_done diff --git a/t/perf/p7000-filter-branch.sh b/t/perf/p7000-filter-branch.sh index 15ee5d1d53..b029586ccb 100755 --- a/t/perf/p7000-filter-branch.sh +++ b/t/perf/p7000-filter-branch.sh @@ -16,4 +16,9 @@ test_perf 'noop filter' ' git filter-branch -f base..HEAD ' +test_perf 'noop prune-empty' ' + git checkout --detach tip && + git filter-branch -f --prune-empty base..HEAD +' + test_done diff --git a/t/perf/perf-lib.sh b/t/perf/perf-lib.sh index 46f08ee087..ab4b8b06ae 100644 --- a/t/perf/perf-lib.sh +++ b/t/perf/perf-lib.sh @@ -83,7 +83,7 @@ test_perf_create_repo_from () { error "bug in the test script: not 2 parameters to test-create-repo" repo="$1" source="$2" - source_git="$(git -C "$source" rev-parse --git-dir)" + source_git="$("$MODERN_GIT" -C "$source" rev-parse --git-dir)" objects_dir="$("$MODERN_GIT" -C "$source" rev-parse --git-path objects)" mkdir -p "$repo/.git" ( @@ -102,7 +102,7 @@ test_perf_create_repo_from () { ) && ( cd "$repo" && - git init -q && { + "$MODERN_GIT" init -q && { test_have_prereq SYMLINKS || git config core.symlinks false } && diff --git a/t/perf/run b/t/perf/run index cfd70129bb..c788d713ae 100755 --- a/t/perf/run +++ b/t/perf/run @@ -30,7 +30,13 @@ unpack_git_rev () { } build_git_rev () { rev=$1 - cp ../../config.mak build/$rev/config.mak + for config in config.mak config.mak.autogen config.status + do + if test -e "../../$config" + then + cp "../../$config" "build/$rev/" + fi + done (cd build/$rev && make $GIT_PERF_MAKE_OPTS) || die "failed to build revision '$mydir'" } @@ -57,6 +63,9 @@ run_dirs_helper () { unset GIT_TEST_INSTALLED else GIT_TEST_INSTALLED="$mydir/bin-wrappers" + # Older versions of git lacked bin-wrappers; fallback to the + # files in the root. + test -d "$GIT_TEST_INSTALLED" || GIT_TEST_INSTALLED=$mydir export GIT_TEST_INSTALLED fi run_one_dir "$@" |