tests/notcapable
author Pierre-Yves David <pierre-yves.david@octobus.net>
Fri, 05 Apr 2024 11:05:54 +0200
changeset 51576 de5bf3fe0233
parent 50413 3a2df812e1c7
permissions -rw-r--r--
revset: stop serializing node when using "%ln" Turning hundred of thousand of node from node to hex and back can be slow… what about we stop doing it? In many case were we are using node id we should be using revision id. However this is not a good reason to have a stupidly slow implementation of "%ln". This caught my attention again because the phase discovery during push make an extensive use of "%ln" or huge set. In absolute, that phase discovery probably should use "%ld" and need to improves its algorithmic complexity, but improving "%ln" seems simple and long overdue. This greatly speeds up `hg push` on repository with many drafts. Here are some relevant poulpe benchmarks: ### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog # benchmark.name = hg.command.push # bin-env-vars.hg.flavor = default # bin-env-vars.hg.py-re2-module = default # benchmark.variants.explicit-rev = all-out-heads # benchmark.variants.issue6528 = disabled # benchmark.variants.protocol = ssh # benchmark.variants.reuse-external-delta-parent = default ## benchmark.variants.revs = any-1-extra-rev before: 44.235070 after: 20.416329 (-53.85%, -23.82) ## benchmark.variants.revs = any-100-extra-rev before: 49.234697 after: 26.519829 (-46.14%, -22.71) ### benchmark.name = hg.command.bundle # bin-env-vars.hg.flavor = default # bin-env-vars.hg.py-re2-module = default # benchmark.variants.revs = all # benchmark.variants.type = none-streamv2 ## data-env-vars.name = heptapod-public-2024-03-25-zstd-sparse-revlog before: 10.138396 after: 7.750458 (-23.55%, -2.39) ## data-env-vars.name = mercurial-public-2024-03-22-zstd-sparse-revlog before: 1.263859 after: 0.700229 (-44.60%, -0.56) ## data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog before: 399.484481 after: 346.5089 (-13.26%, -52.98) ## data-env-vars.name = pypy-2024-03-22-zstd-sparse-revlog before: 4.540080 after: 3.401700 (-25.07%, -1.14) ## data-env-vars.name = tryton-public-2024-03-22-zstd-sparse-revlog before: 2.975765 after: 1.870798 (-37.13%, -1.10)
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# Disable the $CAP wire protocol capability.
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if test -z "$CAP"
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then
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    echo "CAP environment variable not set."
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fi
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cat > notcapable-$CAP.py << EOF
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from mercurial import extensions, localrepo
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from mercurial.interfaces import repository
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def extsetup(ui):
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    extensions.wrapfunction(repository.peer, 'capable', wrapcapable)
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    extensions.wrapfunction(localrepo.localrepository, 'peer', wrappeer)
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def wrapcapable(orig, self, name, *args, **kwargs):
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    if name in b'$CAP'.split(b' '):
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        return False
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    return orig(self, name, *args, **kwargs)
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def wrappeer(orig, self, *args, **kwargs):
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    # Since we're disabling some newer features, we need to make sure local
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    # repos add in the legacy features again.
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    return localrepo.locallegacypeer(self, *args, **kwargs)
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EOF
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echo '[extensions]' >> $HGRCPATH
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echo "notcapable-$CAP = `pwd`/notcapable-$CAP.py" >> $HGRCPATH