Mercurial > hgsubversion
view tests/fixtures/ignores.svndump @ 889:7a98fbadcae9
revsets: huge speedups for fromsvn and svnrev
I have a hgsubversion repo that contains over 300,000 commits.
In that repo, this patch improves performance as follows:
hg --time log -r 'first(fromsvn())'
Before: 40.3 sec
After: 0.8 sec
hg --time log -r 'svnrev(350000)'
Before: 40.3 sec
After: 0.1 sec
Note: the performance of these revset implementations is very sensitive
to doing as little work as possible per line of the rev_map file.
I originally attempted to hide the file format details by hoisting the
parsing of each line up into RevMap.readmapfile, but the current less
abstract code is dramatically (10x or more) faster.
If the revmap file is missing, we error out and print a message
describing what to do.
| author | Bryan O'Sullivan <bryano@fb.com> |
|---|---|
| date | Sat, 12 May 2012 05:38:34 -0700 |
| parents | 91db8fc049b0 |
| children |
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SVN-fs-dump-format-version: 2 UUID: 8ad10f29-7a81-4fb6-a789-b0b0ade2ec54 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2009-02-24T20:04:33.977054Z PROPS-END Revision-number: 1 Prop-content-length: 111 Content-length: 111 K 7 svn:log V 11 Add a file. K 10 svn:author V 5 durin K 8 svn:date V 27 2009-02-24T20:05:12.825468Z PROPS-END Node-path: trunk Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk/bar Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 4 Text-content-md5: d3b07384d113edec49eaa6238ad5ff00 Text-content-sha1: f1d2d2f924e986ac86fdf7b36c94bcdf32beec15 Content-length: 14 PROPS-END foo Revision-number: 2 Prop-content-length: 105 Content-length: 105 K 7 svn:log V 6 ignore K 10 svn:author V 5 durin K 8 svn:date V 27 2009-02-24T20:05:49.334191Z PROPS-END Node-path: trunk Node-kind: dir Node-action: change Prop-content-length: 47 Content-length: 47 K 10 svn:ignore V 15 blah otherblah PROPS-END Revision-number: 3 Prop-content-length: 124 Content-length: 124 K 7 svn:log V 24 another file and ignore. K 10 svn:author V 5 durin K 8 svn:date V 27 2009-02-24T20:07:13.884019Z PROPS-END Node-path: trunk/baz Node-kind: dir Node-action: add Prop-content-length: 37 Content-length: 37 K 10 svn:ignore V 6 magic PROPS-END Node-path: trunk/baz/xyzzy Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 6 Text-content-md5: 89d447eb9afaeb94e463615e8ded6479 Text-content-sha1: 9b3802ecbad114267dd0d1a431e57b0bca95930a Content-length: 16 PROPS-END xyzzy