Mercurial > hg
view tests/test-rebase-mq-skip.t @ 41247:a89b20a49c13
rust-cpython: using MissingAncestors from Python code
As precedently done with LazyAncestors on cpython.rs, we test for the
presence of the 'rustext' module.
incrementalmissingrevs() has two callers within the Mercurial core:
`setdiscovery.partialdiscovery` and the `only()` revset.
This move shows a significant discovery performance improvement
in cases where the baseline is slow: using perfdiscovery on the PyPy
repos, prepared with `contrib/discovery-helper <repo> 50 100`, we
get averaged medians of 403ms with the Rust version vs 742ms without
(about 45% better).
But there are still indications that performance can be worse in cases
the baseline is fast, possibly due to the conversion from Python to
Rust and back becoming the bottleneck. We could measure this on
mozilla-central in cases were the delta is just a few changesets.
This requires confirmation, but if that's the reason, then an
upcoming `partialdiscovery` fully in Rust should solve the problem.
Differential Revision: https://phab.mercurial-scm.org/D5551
author | Georges Racinet <georges.racinet@octobus.net> |
---|---|
date | Fri, 30 Nov 2018 14:35:57 +0100 |
parents | 4edd427f34c1 |
children | 35ebdbb38efb |
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This emulates the effects of an hg pull --rebase in which the remote repo already has one local mq patch $ cat >> $HGRCPATH <<EOF > [extensions] > rebase= > mq= > > [phases] > publish=False > > [alias] > tglog = log -G --template "{rev}: {node|short} '{desc}' tags: {tags}\n" > EOF $ hg init a $ cd a $ hg qinit -c $ echo c1 > c1 $ hg add c1 $ hg ci -m C1 $ echo r1 > r1 $ hg add r1 $ hg ci -m R1 $ hg up -q 0 $ hg qnew p0.patch -d '1 0' $ echo p0 > p0 $ hg add p0 $ hg qref -m P0 $ hg qnew p1.patch -d '2 0' $ echo p1 > p1 $ hg add p1 $ hg qref -m P1 $ hg export qtip > p1.patch $ hg up -q -C 1 $ hg import p1.patch applying p1.patch $ rm p1.patch $ hg up -q -C qtip $ hg rebase -v rebasing 2:13a46ce44f60 "P0" (p0.patch qbase) resolving manifests removing p0 getting r1 resolving manifests getting p0 committing files: p0 committing manifest committing changelog rebasing 3:148775c71080 "P1" (p1.patch qtip) resolving manifests note: not rebasing 3:148775c71080 "P1" (p1.patch qtip), its destination already has all its changes rebase merging completed updating mq patch p0.patch to 5:9ecc820b1737 $TESTTMP/a/.hg/patches/p0.patch 2 changesets found uncompressed size of bundle content: 348 (changelog) 324 (manifests) 129 p0 129 p1 saved backup bundle to $TESTTMP/a/.hg/strip-backup/13a46ce44f60-5da6ecfb-rebase.hg 2 changesets found uncompressed size of bundle content: 403 (changelog) 324 (manifests) 129 p0 129 p1 adding branch adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files rebase completed 1 revisions have been skipped $ hg tglog @ 3: 9ecc820b1737 'P0' tags: p0.patch qbase qtip tip | o 2: 869d8b134a27 'P1' tags: qparent | o 1: da108f2755df 'R1' tags: | o 0: cd320d50b341 'C1' tags: $ cd .. $ hg init b $ cd b $ hg qinit -c $ for i in r0 r1 r2 r3 r4 r5 r6; > do > echo $i > $i > hg ci -Am $i > done adding r0 adding r1 adding r2 adding r3 adding r4 adding r5 adding r6 $ hg qimport -r 1:tip $ hg up -q 0 $ for i in r1 r3 r7 r8; > do > echo $i > $i > hg ci -Am branch2-$i > done adding r1 created new head adding r3 adding r7 adding r8 $ echo somethingelse > r4 $ hg ci -Am branch2-r4 adding r4 $ echo r6 > r6 $ hg ci -Am branch2-r6 adding r6 $ hg up -q qtip $ HGMERGE=internal:fail hg rebase rebasing 1:b4bffa6e4776 "r1" (qbase r1) note: not rebasing 1:b4bffa6e4776 "r1" (qbase r1), its destination already has all its changes rebasing 2:c0fd129beb01 "r2" (r2) rebasing 3:6ff5b8feed8e "r3" (r3) note: not rebasing 3:6ff5b8feed8e "r3" (r3), its destination already has all its changes rebasing 4:094320fec554 "r4" (r4) unresolved conflicts (see hg resolve, then hg rebase --continue) [1] $ HGMERGE=internal:local hg resolve --all (no more unresolved files) continue: hg rebase --continue $ hg rebase --continue already rebased 1:b4bffa6e4776 "r1" (qbase r1) as 057f55ff8f44 already rebased 2:c0fd129beb01 "r2" (r2) as 1660ab13ce9a already rebased 3:6ff5b8feed8e "r3" (r3) as 1660ab13ce9a rebasing 4:094320fec554 "r4" (r4) note: not rebasing 4:094320fec554 "r4" (r4), its destination already has all its changes rebasing 5:681a378595ba "r5" (r5) rebasing 6:512a1f24768b "r6" (qtip r6) note: not rebasing 6:512a1f24768b "r6" (qtip r6), its destination already has all its changes saved backup bundle to $TESTTMP/b/.hg/strip-backup/b4bffa6e4776-b9bfb84d-rebase.hg $ hg tglog @ 8: 0b9735ce8f0a 'r5' tags: qtip r5 tip | o 7: 1660ab13ce9a 'r2' tags: qbase r2 | o 6: 057f55ff8f44 'branch2-r6' tags: qparent | o 5: 1d7287f8deb1 'branch2-r4' tags: | o 4: 3c10b9db2bd5 'branch2-r8' tags: | o 3: b684023158dc 'branch2-r7' tags: | o 2: d817754b1251 'branch2-r3' tags: | o 1: 0621a206f8a4 'branch2-r1' tags: | o 0: 222799e2f90b 'r0' tags: $ cd ..