Mercurial > hgsubversion
view tests/fixtures/move_into_trunk.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 | 1086bd6f6aa4 |
| children |
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SVN-fs-dump-format-version: 2 UUID: 124c25c6-3b41-4c6b-a3a3-a0c9809dc9cb Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2010-08-14T19:08:00.090868Z PROPS-END Revision-number: 1 Prop-content-length: 111 Content-length: 111 K 7 svn:log V 10 Add files. K 10 svn:author V 9 anonymous K 8 svn:date V 27 2010-08-14T19:09:04.290181Z PROPS-END Node-path: A Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 16 Text-content-md5: 98475036dc73d318982805bf4b16e8b2 Text-content-sha1: d7dff2b1ef48b9c20c23d7b3a08b557957cec3c9 Content-length: 26 PROPS-END This is a file. Node-path: B Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 22 Text-content-md5: d54ff73404ed6041a3bd66850b061bff Text-content-sha1: 4bdb40dfd6ec75cb730e678b5d7786e30170c5fb Content-length: 32 PROPS-END This is another file. Revision-number: 2 Prop-content-length: 111 Content-length: 111 K 7 svn:log V 10 Add trunk. K 10 svn:author V 9 anonymous K 8 svn:date V 27 2010-08-14T19:09:23.652445Z PROPS-END Node-path: trunk Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Revision-number: 3 Prop-content-length: 113 Content-length: 113 K 7 svn:log V 12 Move a file. K 10 svn:author V 9 anonymous K 8 svn:date V 27 2010-08-14T19:09:33.945291Z PROPS-END Node-path: trunk/A Node-kind: file Node-action: add Node-copyfrom-rev: 1 Node-copyfrom-path: A Text-copy-source-md5: 98475036dc73d318982805bf4b16e8b2 Text-copy-source-sha1: d7dff2b1ef48b9c20c23d7b3a08b557957cec3c9 Node-path: A Node-action: delete Revision-number: 4 Prop-content-length: 122 Content-length: 122 K 7 svn:log V 18 Move another file. K 10 svn:author V 9 anonymous K 8 svn:date V 27 2010-08-14T19:10:03.135714Z PROPS-END Node-path: trunk/B Node-kind: file Node-action: add Node-copyfrom-rev: 3 Node-copyfrom-path: B Text-copy-source-md5: d54ff73404ed6041a3bd66850b061bff Text-copy-source-sha1: 4bdb40dfd6ec75cb730e678b5d7786e30170c5fb Node-path: B Node-action: delete