diff options
Diffstat (limited to 't/perf/p5303-many-packs.sh')
| -rwxr-xr-x | t/perf/p5303-many-packs.sh | 69 |
1 files changed, 63 insertions, 6 deletions
diff --git a/t/perf/p5303-many-packs.sh b/t/perf/p5303-many-packs.sh index 3779851941..35c0cbdf49 100755 --- a/t/perf/p5303-many-packs.sh +++ b/t/perf/p5303-many-packs.sh @@ -21,14 +21,25 @@ repack_into_n () { mkdir staging && git rev-list --first-parent HEAD | - sed -n '1~5p' | - head -n "$1" | - perl -e 'print reverse <>' \ - >pushes + perl -e ' + my $n = shift; + while (<>) { + last unless @commits < $n; + push @commits, $_ if $. % 5 == 1; + } + print reverse @commits; + ' "$1" >pushes && # create base packfile - head -n 1 pushes | - git pack-objects --delta-base-offset --revs staging/pack + base_pack=$( + head -n 1 pushes | + git pack-objects --delta-base-offset --revs staging/pack + ) && + test_export base_pack && + + # create an empty packfile + empty_pack=$(git pack-objects staging/pack </dev/null) && + test_export empty_pack && # and then incrementals between each pair of commits last= && @@ -45,6 +56,12 @@ repack_into_n () { last=$rev done <pushes && + ( + find staging -type f -name 'pack-*.pack' | + xargs -n 1 basename | grep -v "$base_pack" && + printf "^pack-%s.pack\n" $base_pack + ) >stdin.packs + # and install the whole thing rm -f .git/objects/pack/* && mv staging/* .git/objects/pack/ @@ -73,15 +90,55 @@ do git rev-list --objects --all >/dev/null ' + test_perf "abbrev-commit ($nr_packs)" ' + git rev-list --abbrev-commit HEAD >/dev/null + ' + # This simulates the interesting part of the repack, which is the # actual pack generation, without smudging the on-disk setup # between trials. test_perf "repack ($nr_packs)" ' + GIT_TEST_FULL_IN_PACK_ARRAY=1 \ + git pack-objects --keep-true-parents \ + --honor-pack-keep --non-empty --all \ + --reflog --indexed-objects --delta-base-offset \ + --stdout </dev/null >/dev/null + ' + + test_perf "repack with kept ($nr_packs)" ' git pack-objects --keep-true-parents \ + --keep-pack=pack-$empty_pack.pack \ --honor-pack-keep --non-empty --all \ --reflog --indexed-objects --delta-base-offset \ --stdout </dev/null >/dev/null ' + + test_perf "repack with --stdin-packs ($nr_packs)" ' + git pack-objects \ + --keep-true-parents \ + --stdin-packs \ + --non-empty \ + --delta-base-offset \ + --stdout <stdin.packs >/dev/null + ' done +# Measure pack loading with 10,000 packs. +test_expect_success 'generate lots of packs' ' + for i in $(test_seq 10000); do + echo "blob" + echo "data <<EOF" + echo "blob $i" + echo "EOF" + echo "checkpoint" + done | + git -c fastimport.unpackLimit=0 fast-import +' + +# The purpose of this test is to evaluate load time for a large number +# of packs while doing as little other work as possible. +test_perf "load 10,000 packs" ' + git rev-parse --verify "HEAD^{commit}" +' + test_done |