Mercurial > hg
view tests/test-merge-commit.t @ 20182:04036798ebed
branches: avoid unnecessary changectx.branch() calls
This requires reading from the changelog, which can be costly over NFS.
Note that this does not totally remove reading from the changelog; we
still do that when calling changectx.closesbranch(). That call will be
removed in a later patch.
Running hg branches on the PyPy repo (with 996) over a busy NFS server,
before this change:
$ time hg --profile branches > /dev/null
CallCount Recursive Total(s) Inline(s) module:lineno(function)
2042 0 2.2827 2.2827 <open>
2036 0 0.9840 0.9840 <method 'close' of 'file' objects>
2036 0 0.0464 0.0464 <method 'read' of 'file' objects>
5233 0 0.1985 0.0453 mercurial.repoview:161(changelog)
10462 0 0.0791 0.0314 mercurial.changelog:133(tip)
5233 0 0.0388 0.0176 mercurial.localrepo:26(__get__)
10462 0 0.0250 0.0126 <len>
5233 0 0.0059 0.0039 mercurial.repoview:112(filterrevs)
10462 0 0.0029 0.0029 <hash>
2034 0 0.0444 0.0444 <method 'seek' of 'file' objects>
5340 0 0.0390 0.0390 mercurial.revlog:296(rev)
2582 0 0.0371 0.0371 <zlib.decompress>
3155 0 0.1963 0.0366 mercurial.context:202(__init__)
3155 0 0.1238 0.0306 mercurial.repoview:161(changelog)
3155 0 0.0261 0.0080 mercurial.changelog:183(rev)
9465 0 0.0061 0.0061 <isinstance>
1096 0 0.0023 0.0023 <binascii.unhexlify>
4251 0 0.0014 0.0014 <len>
2059 0 3.7341 0.0332 mercurial.changelog:270(read)
2059 0 3.6304 0.0307 mercurial.revlog:907(revision)
2057 0 0.0262 0.0137 mercurial.changelog:28(decodeextra)
4118 0 0.0094 0.0094 <method 'split' of 'str' objects>
4118 0 0.0270 0.0048 mercurial.encoding:61(tolocal)
2059 0 0.0040 0.0040 <method 'index' of 'str' objects>
10462 0 0.0791 0.0314 mercurial.changelog:133(tip)
10462 0 0.0289 0.0207 mercurial.changelog:190(node)
10462 0 0.0188 0.0091 <len>
52433 20932 0.0478 0.0310 <len>
20932 0 0.0221 0.0168 mercurial.revlog:262(__len__)
2059 0 3.6304 0.0307 mercurial.revlog:907(revision)
real 0m4.361s
user 0m0.986s
sys 0m0.237s
After this change:
$ time hg --profile branches > /dev/null
CallCount Recursive Total(s) Inline(s) module:lineno(function)
1069 0 1.1098 1.1098 <open>
1063 0 0.4865 0.4865 <method 'close' of 'file' objects>
4122 0 0.1811 0.0404 mercurial.repoview:161(changelog)
8240 0 0.0712 0.0272 mercurial.changelog:133(tip)
4122 0 0.0378 0.0177 mercurial.localrepo:26(__get__)
8240 0 0.0221 0.0115 <len>
4122 0 0.0057 0.0033 mercurial.repoview:112(filterrevs)
8240 0 0.0025 0.0025 <hash>
3029 0 0.1979 0.0371 mercurial.context:202(__init__)
3029 0 0.1278 0.0310 mercurial.repoview:161(changelog)
3029 0 0.0230 0.0081 mercurial.changelog:183(rev)
9087 0 0.0061 0.0061 <isinstance>
1096 0 0.0026 0.0026 <binascii.unhexlify>
4125 0 0.0014 0.0014 <len>
4229 0 0.0337 0.0337 mercurial.revlog:296(rev)
1061 0 0.0296 0.0296 <method 'seek' of 'file' objects>
1063 0 0.0292 0.0292 <method 'read' of 'file' objects>
8240 0 0.0712 0.0272 mercurial.changelog:133(tip)
8240 0 0.0271 0.0196 mercurial.changelog:190(node)
8240 0 0.0169 0.0083 <len>
40476 16488 0.0422 0.0271 <len>
16488 0 0.0193 0.0152 mercurial.revlog:262(__len__)
1342 0 0.0241 0.0241 <zlib.decompress>
9445 0 0.0336 0.0224 mercurial.changelog:190(node)
9445 0 0.0112 0.0112 mercurial.revlog:317(node)
1074 0 1.9102 0.0224 mercurial.changelog:270(read)
1074 0 1.8397 0.0202 mercurial.revlog:907(revision)
1073 0 0.0187 0.0099 mercurial.changelog:28(decodeextra)
2148 0 0.0061 0.0061 <method 'split' of 'str' objects>
2148 0 0.0184 0.0034 mercurial.encoding:61(tolocal)
real 0m2.402s
user 0m0.735s
sys 0m0.177s
author | Brodie Rao <brodie@sf.io> |
---|---|
date | Fri, 15 Nov 2013 23:18:08 -0500 |
parents | bcf29565d89f |
children | cb15835456cb |
line wrap: on
line source
Check that renames are correctly saved by a commit after a merge Test with the merge on 3 having the rename on the local parent $ hg init a $ cd a $ echo line1 > foo $ hg add foo $ hg ci -m '0: add foo' $ echo line2 >> foo $ hg ci -m '1: change foo' $ hg up -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg mv foo bar $ rm bar $ echo line0 > bar $ echo line1 >> bar $ hg ci -m '2: mv foo bar; change bar' created new head $ hg merge 1 merging bar and foo to bar 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ cat bar line0 line1 line2 $ hg ci -m '3: merge with local rename' $ hg debugindex bar rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 77 ..... 2 d35118874825 000000000000 000000000000 (re) 1 77 76 ..... 3 5345f5ab8abd 000000000000 d35118874825 (re) $ hg debugrename bar bar renamed from foo:9e25c27b87571a1edee5ae4dddee5687746cc8e2 $ hg debugindex foo rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 7 ..... 0 690b295714ae 000000000000 000000000000 (re) 1 7 13 ..... 1 9e25c27b8757 690b295714ae 000000000000 (re) Revert the content change from rev 2: $ hg up -C 2 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm bar $ echo line1 > bar $ hg ci -m '4: revert content change from rev 2' created new head $ hg log --template '{rev}:{node|short} {parents}\n' 4:2263c1be0967 2:0f2ff26688b9 3:0555950ead28 2:0f2ff26688b9 1:5cd961e4045d 2:0f2ff26688b9 0:2665aaee66e9 1:5cd961e4045d 0:2665aaee66e9 This should use bar@rev2 as the ancestor: $ hg --debug merge 3 searching for copies back to rev 1 resolving manifests branchmerge: True, force: False, partial: False ancestor: 0f2ff26688b9, local: 2263c1be0967+, remote: 0555950ead28 bar: versions differ -> m preserving bar for resolve of bar updating: bar 1/1 files (100.00%) picked tool 'internal:merge' for bar (binary False symlink False) merging bar my bar@2263c1be0967+ other bar@0555950ead28 ancestor bar@0f2ff26688b9 premerge successful 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ cat bar line1 line2 $ hg ci -m '5: merge' $ hg debugindex bar rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 77 ..... 2 d35118874825 000000000000 000000000000 (re) 1 77 76 ..... 3 5345f5ab8abd 000000000000 d35118874825 (re) 2 153 7 ..... 4 ff4b45017382 d35118874825 000000000000 (re) 3 160 13 ..... 5 3701b4893544 ff4b45017382 5345f5ab8abd (re) Same thing, but with the merge on 3 having the rename on the remote parent: $ cd .. $ hg clone -U -r 1 -r 2 a b adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 2 files (+1 heads) $ cd b $ hg up -C 1 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg merge 2 merging foo and bar to bar 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ cat bar line0 line1 line2 $ hg ci -m '3: merge with remote rename' $ hg debugindex bar rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 77 ..... 2 d35118874825 000000000000 000000000000 (re) 1 77 76 ..... 3 5345f5ab8abd 000000000000 d35118874825 (re) $ hg debugrename bar bar renamed from foo:9e25c27b87571a1edee5ae4dddee5687746cc8e2 $ hg debugindex foo rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 7 ..... 0 690b295714ae 000000000000 000000000000 (re) 1 7 13 ..... 1 9e25c27b8757 690b295714ae 000000000000 (re) Revert the content change from rev 2: $ hg up -C 2 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm bar $ echo line1 > bar $ hg ci -m '4: revert content change from rev 2' created new head $ hg log --template '{rev}:{node|short} {parents}\n' 4:2263c1be0967 2:0f2ff26688b9 3:3ffa6b9e35f0 1:5cd961e4045d 2:0f2ff26688b9 2:0f2ff26688b9 0:2665aaee66e9 1:5cd961e4045d 0:2665aaee66e9 This should use bar@rev2 as the ancestor: $ hg --debug merge 3 searching for copies back to rev 1 resolving manifests branchmerge: True, force: False, partial: False ancestor: 0f2ff26688b9, local: 2263c1be0967+, remote: 3ffa6b9e35f0 bar: versions differ -> m preserving bar for resolve of bar updating: bar 1/1 files (100.00%) picked tool 'internal:merge' for bar (binary False symlink False) merging bar my bar@2263c1be0967+ other bar@3ffa6b9e35f0 ancestor bar@0f2ff26688b9 premerge successful 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ cat bar line1 line2 $ hg ci -m '5: merge' $ hg debugindex bar rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 77 ..... 2 d35118874825 000000000000 000000000000 (re) 1 77 76 ..... 3 5345f5ab8abd 000000000000 d35118874825 (re) 2 153 7 ..... 4 ff4b45017382 d35118874825 000000000000 (re) 3 160 13 ..... 5 3701b4893544 ff4b45017382 5345f5ab8abd (re) $ cd ..