Mercurial > hg
view tests/test-convert-baz.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 | 7a9cbb315d84 |
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line source
$ "$TESTDIR/hghave" baz symlink || exit 80 $ baz my-id "mercurial <mercurial@selenic.com>" $ echo "[extensions]" >> $HGRCPATH $ echo "convert=" >> $HGRCPATH create baz archive $ baz make-archive baz@mercurial--convert hg-test-convert-baz initialize baz repo $ mkdir baz-repo $ cd baz-repo/ $ baz init-tree baz@mercurial--convert/baz--test--0 $ baz import * creating version baz@mercurial--convert/baz--test--0 * imported baz@mercurial--convert/baz--test--0 create initial files $ echo 'this is a file' > a $ baz add a $ mkdir src $ baz add src $ cd src $ dd count=1 if=/dev/zero of=b > /dev/null 2> /dev/null $ baz add b HACK: hide GNU tar-1.22 "tar: The --preserve option is deprecated, use --preserve-permissions --preserve-order instead" $ baz commit -s "added a file, src and src/b (binary)" 2>&1 | grep -v '^tar' * build pristine tree for baz@mercurial--convert/baz--test--0--base-0 * Scanning for full-tree revision: . * from import revision: baz@mercurial--convert/baz--test--0--base-0 A/ .arch-ids A/ src A/ src/.arch-ids A .arch-ids/a.id A a A src/.arch-ids/=id A src/.arch-ids/b.id A src/b * update pristine tree (baz@mercurial--convert/baz--test--0--base-0 => baz--test--0--patch-1) * committed baz@mercurial--convert/baz--test--0--patch-1 create link file and modify a $ ln -s ../a a-link $ baz add a-link $ echo 'this a modification to a' >> ../a $ baz commit -s "added link to a and modify a" A src/.arch-ids/a-link.id A src/a-link M a * update pristine tree (baz@mercurial--convert/baz--test--0--patch-1 => baz--test--0--patch-2) * committed baz@mercurial--convert/baz--test--0--patch-2 create second link and modify b $ ln -s ../a a-link-2 $ baz add a-link-2 $ dd count=1 seek=1 if=/dev/zero of=b > /dev/null 2> /dev/null $ baz commit -s "added second link and modify b" A src/.arch-ids/a-link-2.id A src/a-link-2 Mb src/b * update pristine tree (baz@mercurial--convert/baz--test--0--patch-2 => baz--test--0--patch-3) * committed baz@mercurial--convert/baz--test--0--patch-3 b file to link and a-link-2 to regular file $ rm -f a-link-2 $ echo 'this is now a regular file' > a-link-2 $ ln -sf ../a b $ baz commit -s "file to link and link to file test" fl src/b lf src/a-link-2 * update pristine tree (baz@mercurial--convert/baz--test--0--patch-3 => baz--test--0--patch-4) * committed baz@mercurial--convert/baz--test--0--patch-4 move a-link-2 file and src directory $ cd .. $ baz mv src/a-link-2 c $ baz mv src test $ baz commit -s "move and rename a-link-2 file and src directory" D/ src/.arch-ids A/ test/.arch-ids /> src test => src/.arch-ids/a-link-2.id .arch-ids/c.id => src/a-link-2 c => src/.arch-ids/=id test/.arch-ids/=id => src/.arch-ids/a-link.id test/.arch-ids/a-link.id => src/.arch-ids/b.id test/.arch-ids/b.id * update pristine tree (baz@mercurial--convert/baz--test--0--patch-4 => baz--test--0--patch-5) * committed baz@mercurial--convert/baz--test--0--patch-5 move and add the moved file again $ echo e > e $ baz add e $ baz commit -s "add e" A .arch-ids/e.id A e * update pristine tree (baz@mercurial--convert/baz--test--0--patch-5 => baz--test--0--patch-6) * committed baz@mercurial--convert/baz--test--0--patch-6 $ baz mv e f $ echo ee > e $ baz add e $ baz commit -s "move e and recreate it again" A .arch-ids/e.id A e => .arch-ids/e.id .arch-ids/f.id => e f * update pristine tree (baz@mercurial--convert/baz--test--0--patch-6 => baz--test--0--patch-7) * committed baz@mercurial--convert/baz--test--0--patch-7 $ cd .. converting baz repo to Mercurial $ hg convert baz-repo baz-repo-hg initializing destination baz-repo-hg repository analyzing tree version baz@mercurial--convert/baz--test--0... scanning source... sorting... converting... 7 initial import 6 added a file, src and src/b (binary) 5 added link to a and modify a 4 added second link and modify b 3 file to link and link to file test 2 move and rename a-link-2 file and src directory 1 add e 0 move e and recreate it again $ baz register-archive -d baz@mercurial--convert $ glog() > { > hg log -G --template '{rev} "{desc|firstline}" files: {files}\n' "$@" > } show graph log $ glog -R baz-repo-hg o 7 "move e and recreate it again" files: e f | o 6 "add e" files: e | o 5 "move and rename a-link-2 file and src directory" files: c src/a-link src/a-link-2 src/b test/a-link test/b | o 4 "file to link and link to file test" files: src/a-link-2 src/b | o 3 "added second link and modify b" files: src/a-link-2 src/b | o 2 "added link to a and modify a" files: a src/a-link | o 1 "added a file, src and src/b (binary)" files: a src/b | o 0 "initial import" files: $ hg up -q -R baz-repo-hg $ hg -R baz-repo-hg manifest --debug c4072c4b72e1cabace081888efa148ee80ca3cbb 644 a 0201ac32a3a8e86e303dff60366382a54b48a72e 644 c 1a4a864db0073705a11b1439f563bfa4b46d9246 644 e 09e0222742fc3f75777fa9d68a5d8af7294cb5e7 644 f c0067ba5ff0b7c9a3eb17270839d04614c435623 644 @ test/a-link 375f4263d86feacdea7e3c27100abd1560f2a973 644 @ test/b $ hg -R baz-repo-hg log -r 5 -r 7 -C --debug | grep copies copies: c (src/a-link-2) test/a-link (src/a-link) test/b (src/b) copies: f (e)