93ba78d6f4
This causes cgit to serve error pages, which is undesirable. This reverts commit5229c9b232, reversing changes made tof2b211131f.
87 lines
2.4 KiB
Bash
Executable file
87 lines
2.4 KiB
Bash
Executable file
#!/bin/sh
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test_description='performance with large numbers of packs'
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. ./perf-lib.sh
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test_perf_large_repo
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# A real many-pack situation would probably come from having a lot of pushes
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# over time. We don't know how big each push would be, but we can fake it by
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# just walking the first-parent chain and having every 5 commits be their own
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# "push". This isn't _entirely_ accurate, as real pushes would have some
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# duplicate objects due to thin-pack fixing, but it's a reasonable
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# approximation.
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#
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# And then all of the rest of the objects can go in a single packfile that
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# represents the state before any of those pushes (actually, we'll generate
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# that first because in such a setup it would be the oldest pack, and we sort
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# the packs by reverse mtime inside git).
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repack_into_n () {
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rm -rf staging &&
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mkdir staging &&
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git rev-list --first-parent HEAD |
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sed -n '1~5p' |
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head -n "$1" |
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perl -e 'print reverse <>' \
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>pushes
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# create base packfile
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head -n 1 pushes |
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git pack-objects --delta-base-offset --revs staging/pack
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# and then incrementals between each pair of commits
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last= &&
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while read rev
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do
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if test -n "$last"; then
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{
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echo "$rev" &&
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echo "^$last"
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} |
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git pack-objects --delta-base-offset --revs \
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staging/pack || return 1
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fi
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last=$rev
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done <pushes &&
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# and install the whole thing
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rm -f .git/objects/pack/* &&
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mv staging/* .git/objects/pack/
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}
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# Pretend we just have a single branch and no reflogs, and that everything is
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# in objects/pack; that makes our fake pack-building via repack_into_n()
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# much simpler.
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test_expect_success 'simplify reachability' '
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tip=$(git rev-parse --verify HEAD) &&
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git for-each-ref --format="option no-deref%0adelete %(refname)" |
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git update-ref --stdin &&
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rm -rf .git/logs &&
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git update-ref refs/heads/master $tip &&
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git symbolic-ref HEAD refs/heads/master &&
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git repack -ad
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'
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for nr_packs in 1 50 1000
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do
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test_expect_success "create $nr_packs-pack scenario" '
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repack_into_n $nr_packs
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'
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test_perf "rev-list ($nr_packs)" '
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git rev-list --objects --all >/dev/null
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'
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# This simulates the interesting part of the repack, which is the
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# actual pack generation, without smudging the on-disk setup
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# between trials.
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test_perf "repack ($nr_packs)" '
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git pack-objects --keep-true-parents \
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--honor-pack-keep --non-empty --all \
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--reflog --indexed-objects --delta-base-offset \
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--stdout </dev/null >/dev/null
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'
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done
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test_done
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