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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:47:53 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:47:53 +0000 |
commit | c8bae7493d2f2910b57f13ded012e86bdcfb0532 (patch) | |
tree | 24e09d9f84dec336720cf393e156089ca2835791 /t/perf/lib-bitmap.sh | |
parent | Initial commit. (diff) | |
download | git-17a789943131483bc454986d1be6da6caaabce8c.tar.xz git-17a789943131483bc454986d1be6da6caaabce8c.zip |
Adding upstream version 1:2.39.2.upstream/1%2.39.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 't/perf/lib-bitmap.sh')
-rw-r--r-- | t/perf/lib-bitmap.sh | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/t/perf/lib-bitmap.sh b/t/perf/lib-bitmap.sh new file mode 100644 index 0000000..55a8feb --- /dev/null +++ b/t/perf/lib-bitmap.sh @@ -0,0 +1,100 @@ +# Helper functions for testing bitmap performance; see p5310. + +test_full_bitmap () { + 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_perf 'pack to file (bitmap)' ' + git pack-objects --use-bitmap-index --all pack1b </dev/null >/dev/null + ' + + test_perf 'rev-list (commits)' ' + git rev-list --all --use-bitmap-index >/dev/null + ' + + test_perf 'rev-list (objects)' ' + git rev-list --all --use-bitmap-index --objects >/dev/null + ' + + test_perf 'rev-list with tag negated via --not --all (objects)' ' + git rev-list perf-tag --not --all --use-bitmap-index --objects >/dev/null + ' + + test_perf 'rev-list with negative tag (objects)' ' + git rev-list HEAD --not perf-tag --use-bitmap-index --objects >/dev/null + ' + + test_perf 'rev-list count with blob:none' ' + git rev-list --use-bitmap-index --count --objects --all \ + --filter=blob:none >/dev/null + ' + + test_perf 'rev-list count with blob:limit=1k' ' + git rev-list --use-bitmap-index --count --objects --all \ + --filter=blob:limit=1k >/dev/null + ' + + test_perf 'rev-list count with tree:0' ' + git rev-list --use-bitmap-index --count --objects --all \ + --filter=tree:0 >/dev/null + ' + + test_perf 'simulated partial clone' ' + git pack-objects --stdout --all --filter=blob:none </dev/null >/dev/null + ' +} + +test_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_perf 'rev-list with tree filter (partial bitmap)' ' + git rev-list --use-bitmap-index --count --objects --all \ + --filter=tree:0 >/dev/null + ' +} + +test_pack_bitmap () { + test_perf "repack to disk" ' + git repack -ad + ' + + test_full_bitmap + + 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_partial_bitmap +} |