Mercurial > hgsubversion
view tests/fixtures/unrelatedbranch.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 | ea65fe2b0856 |
| children |
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SVN-fs-dump-format-version: 2 UUID: 20b2173d-0f26-4070-9891-00196be06b32 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2008-11-25T23:08:28.726784Z PROPS-END Revision-number: 1 Prop-content-length: 114 Content-length: 114 K 7 svn:log V 12 init project K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-25T23:08:28.798249Z PROPS-END Node-path: branches Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Revision-number: 2 Prop-content-length: 116 Content-length: 116 K 7 svn:log V 14 add a in trunk K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-25T23:08:29.163194Z PROPS-END Node-path: trunk/a Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 60b725f10c9c85c70d97880dfe8191b3 Content-length: 12 PROPS-END a Revision-number: 3 Prop-content-length: 118 Content-length: 118 K 7 svn:log V 16 add b in branch1 K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-25T23:08:30.176855Z PROPS-END Node-path: branches/branch1 Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: branches/branch1/b Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 3b5d5c3712955042212316173ccf37be Content-length: 12 PROPS-END b Revision-number: 4 Prop-content-length: 118 Content-length: 118 K 7 svn:log V 16 add b to branch2 K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-25T23:08:32.174817Z PROPS-END Node-path: branches/branch2 Node-kind: dir Node-action: add Node-copyfrom-rev: 1 Node-copyfrom-path: trunk Prop-content-length: 34 Content-length: 34 K 13 svn:mergeinfo V 0 PROPS-END Node-path: branches/branch2/a Node-kind: file Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk/a Text-copy-source-md5: 60b725f10c9c85c70d97880dfe8191b3 Node-path: branches/branch2/b Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 3b5d5c3712955042212316173ccf37be Content-length: 12 PROPS-END b Revision-number: 5 Prop-content-length: 120 Content-length: 120 K 7 svn:log V 18 add c in branches/ K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-25T23:08:33.166454Z PROPS-END Node-path: branches/c Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 2cd6ee2c70b0bde53fbe6cac3c8b8bb1 Content-length: 12 PROPS-END c Revision-number: 6 Prop-content-length: 109 Content-length: 109 K 7 svn:log V 8 change c K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-25T23:08:34.144541Z PROPS-END Node-path: branches/c Node-kind: file Node-action: change Text-content-length: 4 Text-content-md5: 63fad9092ad37713ebe26b3193f89c41 Content-length: 4 c c