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view tests/test-casefolding.t @ 43198:c16fe77e340a
pathcopies: give up any optimization based on `introrev`
Between 8a0136f69027 and d98fb3f42f33, we sped up the search for the
introduction revision during path copies. However, further checking show that
finding the introduction revision is still expensive and that we are better off
without it. So we simply drop it and only rely on the linkrev optimisation.
I ran `perfpathcopies` on 6989 pair of revision in the pypy
repository (`hg perfhelper-pathcopies`. The result is massively in favor of
dropping this condition. The result of the copy tracing are unchanged.
Attempt to use a smaller changes preserving linkrev usage were unsuccessful, it
can return wrong result. The following changesets broke test-mv-cp-st-diff.t
- if not f.isintroducedafter(limit):
+ if limit >= 0 and f.linkrev() < limit:
return None
Here are various numbers (before this changeset/after this changesets)
source destination before after saved-time ratio
worth cases e66f24650daf 695dfb0f493b 1.062843 1.246369 -0.183526 1.172675
c979853a3b6a 8d60fe293e79 1.036985 1.196414 -0.159429 1.153743
22349fa2fc33 fbb1c9fd86c0 0.879926 1.038682 -0.158756 1.180420
682b98f3e672 a4878080a536 0.909952 1.063801 -0.153849 1.169074
5adabc9b9848 920958a93997 0.993622 1.147452 -0.153830 1.154817
worse 1% dbfbfcf077e9 aea8f2fd3593 1.016595 1.082999 -0.066404 1.065320
worse 5% c95f1ced15f2 7d29d5e39734 0.453694 0.471156 -0.017462 1.038488
worse 10% 3e144ed1d5b7 2aef0e942480 0.035140 0.037535 -0.002395 1.068156
worse 25% 321fc60db035 801748ba582a 0.009267 0.009325 -0.000058 1.006259
median 2088ce763fc2 e6991321d78b 0.000665 0.000651 0.000014 0.978947
best 25% 915631a97de6 385b31354be6 0.040743 0.040363 0.000380 0.990673
best 10% ad495c36a765 19c10384d3e7 0.431658 0.411490 0.020168 0.953278
best 5% d13ae7d283ae 813c99f810ac 1.141404 1.075346 0.066058 0.942126
best 1% 81593cb4a496 99ae11866969 1.833297 0.063823 1.769474 0.034813
best cases c3b14617fbd7 743a0fcaa4eb 1101.811740 2.735970 1099.075770 0.002483
c3b14617fbd7 9ba6ab77fd29 1116.753953 2.800729 1113.953224 0.002508
058b99d6e81f 57e249b7a3ea 1246.128485 3.042762 1243.085723 0.002442
9a8c361aab49 0354a250d371 1253.111894 3.085796 1250.026098 0.002463
442dbbc53c68 3ec1002a818c 1261.786294 3.138607 1258.647687 0.002487
As one can see, the average case is not really impacted. However, the worth case
we get after this changeset are much better than the one we had before it. We
have 30 pairs where improvements are above 10 minutes.
This reflect in the combined time for all pairs
before: 26256s
after: 1300s (-95%)
If we remove these pathological 30 cases, we still see a significant improvements:
before: 1631s
after: 1245s (-24%)
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Thu, 10 Oct 2019 03:49:33 +0200 |
parents | 803b7569c9ea |
children | 7ce8b4d2bd55 |
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#require icasefs $ hg debugfs | grep 'case-sensitive:' case-sensitive: no test file addition with bad case $ hg init repo1 $ cd repo1 $ echo a > a $ hg add A $ hg st A a $ hg ci -m adda $ hg manifest a $ cd .. test case collision on rename (issue750) $ hg init repo2 $ cd repo2 $ echo a > a $ hg --debug ci -Am adda adding a committing files: a committing manifest committing changelog updating the branch cache committed changeset 0:07f4944404050f47db2e5c5071e0e84e7a27bba9 Case-changing renames should work: $ hg mv a A $ hg mv A a $ hg st addremove after case-changing rename has no effect (issue4590) $ hg mv a A $ hg addremove recording removal of a as rename to A (100% similar) $ hg revert --all forgetting A undeleting a test changing case of path components $ mkdir D $ echo b > D/b $ hg ci -Am addb D/b $ hg mv D/b d/b D/b: not overwriting - file already committed ('hg rename --force' to replace the file by recording a rename) [1] $ hg mv D/b d/c $ hg st A D/c R D/b $ mv D temp $ mv temp d $ hg st A D/c R D/b $ hg revert -aq $ rm d/c $ echo c > D/c $ hg add D/c $ hg st A D/c $ hg ci -m addc D/c $ hg mv d/b d/e $ hg st A D/e R D/b $ hg revert -aq $ rm d/e $ hg mv d/b D/B $ hg st A D/B R D/b $ cd .. test case collision between revisions (issue912) $ hg init repo3 $ cd repo3 $ echo a > a $ hg ci -Am adda adding a $ hg rm a $ hg ci -Am removea $ echo A > A on linux hfs keeps the old case stored, force it $ mv a aa $ mv aa A $ hg ci -Am addA adding A used to fail under case insensitive fs $ hg up -C 0 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg up -C 1 files updated, 0 files merged, 1 files removed, 0 files unresolved no clobbering of untracked files with wrong casing $ hg up -r null 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo gold > a $ hg up A: untracked file differs abort: untracked files in working directory differ from files in requested revision [255] $ cat a gold $ rm a test that normal file in different case on target context is not unlinked by largefiles extension. $ cat >> .hg/hgrc <<EOF > [extensions] > largefiles= > EOF $ hg update -q -C 1 $ hg status -A $ echo 'A as largefiles' > A $ hg add --large A $ hg commit -m '#3' created new head $ hg manifest -r 3 .hglf/A $ hg manifest -r 0 a $ hg update -q -C 0 $ hg status -A C a $ hg update -q -C 3 $ hg update -q 0 $ hg up -C -r 2 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg mv A a $ hg diff -g > rename.diff $ hg ci -m 'A -> a' $ hg up -q '.^' $ hg import rename.diff -m "import rename A -> a" applying rename.diff $ hg st ? rename.diff $ hg files a $ find * | sort a rename.diff $ rm rename.diff $ cd .. issue 3342: file in nested directory causes unexpected abort $ hg init issue3342 $ cd issue3342 $ mkdir -p a/B/c/D $ echo e > a/B/c/D/e $ hg add a/B/c/D/e $ hg ci -m 'add e' issue 4481: revert across case only renames $ hg mv a/B/c/D/e a/B/c/d/E $ hg ci -m "uppercase E" $ echo 'foo' > a/B/c/D/E $ hg ci -m 'e content change' $ hg revert --all -r 0 removing a/B/c/D/E adding a/B/c/D/e $ find * | sort a a/B a/B/c a/B/c/D a/B/c/D/e a/B/c/D/e.orig $ cd .. issue 3340: mq does not handle case changes correctly in addition to reported case, 'hg qrefresh' is also tested against case changes. $ echo "[extensions]" >> $HGRCPATH $ echo "mq=" >> $HGRCPATH $ hg init issue3340 $ cd issue3340 $ echo a > mIxEdCaSe $ hg add mIxEdCaSe $ hg commit -m '#0' $ hg rename mIxEdCaSe tmp $ hg rename tmp MiXeDcAsE $ hg status -A A MiXeDcAsE mIxEdCaSe R mIxEdCaSe $ hg qnew changecase $ hg status -A C MiXeDcAsE $ hg qpop -a popping changecase patch queue now empty $ hg qnew refresh-casechange $ hg status -A C mIxEdCaSe $ hg rename mIxEdCaSe tmp $ hg rename tmp MiXeDcAsE $ hg status -A A MiXeDcAsE mIxEdCaSe R mIxEdCaSe $ hg qrefresh $ hg status -A C MiXeDcAsE $ hg qpop -a popping refresh-casechange patch queue now empty $ hg qnew refresh-pattern $ hg status $ echo A > A $ hg add adding A $ hg qrefresh a # issue 3271, qrefresh with file handled case wrong $ hg status # empty status means the qrefresh worked #if osx We assume anyone running the tests on a case-insensitive volume on OS X will be using HFS+. If that's not true, this test will fail. $ rm A >>> open(u'a\u200c'.encode('utf-8'), 'w').write('unicode is fun') and None $ hg status M A #endif $ cd ..