Mercurial > hg
view tests/test-convert-hg-startrev.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 | aa9385f983fa |
children | 242853e14804 |
line wrap: on
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$ cat >> $HGRCPATH <<EOF > [extensions] > convert = > [convert] > hg.saverev = yes > EOF $ glog() > { > hg -R "$1" log -G --template '{rev} "{desc}" files: {files}\n' > } $ hg init source $ cd source $ echo a > a $ echo b > b $ echo f > f $ hg ci -d '0 0' -qAm '0: add a b f' $ echo c > c $ hg move f d $ hg ci -d '1 0' -qAm '1: add c, move f to d' $ hg copy a e $ echo b >> b $ hg ci -d '2 0' -qAm '2: copy e from a, change b' $ hg up -C 0 2 files updated, 0 files merged, 3 files removed, 0 files unresolved $ echo a >> a $ hg ci -d '3 0' -qAm '3: change a' $ hg merge merging a and e to e 3 files updated, 1 files merged, 1 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg ci -d '4 0' -qAm '4: merge 2 and 3' $ echo a >> a $ hg ci -d '5 0' -qAm '5: change a' $ cd .. Convert from null revision $ hg convert --config convert.hg.startrev=null source full initializing destination full repository scanning source... sorting... converting... 5 0: add a b f 4 1: add c, move f to d 3 2: copy e from a, change b 2 3: change a 1 4: merge 2 and 3 0 5: change a $ glog full o 5 "5: change a" files: a | o 4 "4: merge 2 and 3" files: e f |\ | o 3 "3: change a" files: a | | o | 2 "2: copy e from a, change b" files: b e | | o | 1 "1: add c, move f to d" files: c d f |/ o 0 "0: add a b f" files: a b f $ rm -Rf full Convert from zero revision $ hg convert --config convert.hg.startrev=0 source full initializing destination full repository scanning source... sorting... converting... 5 0: add a b f 4 1: add c, move f to d 3 2: copy e from a, change b 2 3: change a 1 4: merge 2 and 3 0 5: change a $ glog full o 5 "5: change a" files: a | o 4 "4: merge 2 and 3" files: e f |\ | o 3 "3: change a" files: a | | o | 2 "2: copy e from a, change b" files: b e | | o | 1 "1: add c, move f to d" files: c d f |/ o 0 "0: add a b f" files: a b f Convert from merge parent $ hg convert --config convert.hg.startrev=1 source conv1 initializing destination conv1 repository scanning source... sorting... converting... 3 1: add c, move f to d 2 2: copy e from a, change b 1 4: merge 2 and 3 0 5: change a $ glog conv1 o 3 "5: change a" files: a | o 2 "4: merge 2 and 3" files: a e | o 1 "2: copy e from a, change b" files: b e | o 0 "1: add c, move f to d" files: a b c d $ cd conv1 $ hg up -q Check copy preservation $ hg st -C --change 2 e M e $ hg st -C --change 1 e A e a $ hg st -C --change 0 a A a (It seems like a bug in log that the following doesn't show rev 1.) $ hg log --follow --copies e changeset: 2:82bbac3d2cf4 user: test date: Thu Jan 01 00:00:04 1970 +0000 summary: 4: merge 2 and 3 changeset: 0:23c3be426dce user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: 1: add c, move f to d Check copy removal on missing parent $ hg log --follow --copies d changeset: 0:23c3be426dce user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: 1: add c, move f to d $ hg cat -r tip a b a a a b b $ hg -q verify $ cd .. Convert from merge $ hg convert --config convert.hg.startrev=4 source conv4 initializing destination conv4 repository scanning source... sorting... converting... 1 4: merge 2 and 3 0 5: change a $ glog conv4 o 1 "5: change a" files: a | o 0 "4: merge 2 and 3" files: a b c d e $ cd conv4 $ hg up -C 5 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg cat -r tip a b a a a b b $ hg -q verify $ cd .. Convert from revset in convert.hg.revs $ hg convert --config convert.hg.revs='3:4+0' source revsetrepo initializing destination revsetrepo repository scanning source... sorting... converting... 2 0: add a b f 1 3: change a 0 4: merge 2 and 3 $ glog revsetrepo o 2 "4: merge 2 and 3" files: b c d e f | o 1 "3: change a" files: a | o 0 "0: add a b f" files: a b f $ cd ..