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c7df68cbca
This just shows off the improvements done by the last few patches, and gives us a baseline for noticing regressions in the future. Here are the results with linux.git as the perf "large repo": Test origin HEAD ------------------------------------------------------------------- 0003.1: log --raw 43.41(40.36+2.69) 33.86(30.96+2.41) -22.0% 0003.2: log -S 313.61(309.74+3.78) 298.75(295.58+3.00) -4.7% (for a large repo, the "log -S" improvements are greater if you bump the delta base cache limit, but I think it makes sense to test the "stock" behavior, since that is what most people will see). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
31 lines
911 B
Bash
Executable file
31 lines
911 B
Bash
Executable file
#!/bin/sh
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test_description='Test operations that emphasize the delta base cache.
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We look at both "log --raw", which should put only trees into the delta cache,
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and "log -Sfoo --raw", which should look at both trees and blobs.
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Any effects will be emphasized if the test repository is fully packed (loose
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objects obviously do not use the delta base cache at all). It is also
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emphasized if the pack has long delta chains (e.g., as produced by "gc
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--aggressive"), though cache is still quite noticeable even with the default
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depth of 50.
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The setting of core.deltaBaseCacheLimit in the source repository is also
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relevant (depending on the size of your test repo), so be sure it is consistent
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between runs.
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'
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. ./perf-lib.sh
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test_perf_large_repo
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# puts mostly trees into the delta base cache
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test_perf 'log --raw' '
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git log --raw >/dev/null
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'
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test_perf 'log -S' '
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git log --raw -Sfoo >/dev/null
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'
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test_done
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