Mercurial > hgsubversion
view tests/fixtures/unorderedbranch.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 | 4d42dbbb5127 |
| children |
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SVN-fs-dump-format-version: 2 UUID: 0f1e934c-2a07-4fc9-acf5-47264bd6bc41 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2008-12-06T16:48:56.303240Z 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 2008-12-06T16:48:56.429957Z 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 2008-12-06T16:48:57.178238Z 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: 122 Content-length: 122 K 7 svn:log V 20 add b and z in trunk K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-12-06T16:48:58.191379Z PROPS-END Node-path: trunk/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 Node-path: trunk/z Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: a8a78d0ff555c931f045b6f448129846 Content-length: 12 PROPS-END z Revision-number: 4 Prop-content-length: 118 Content-length: 118 K 7 svn:log V 16 branch and add c K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-12-06T16:49:02.185634Z PROPS-END Node-path: branches/branch Node-kind: dir Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk Node-path: branches/branch/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 Node-path: branches/branch/z Node-kind: file Node-action: add Node-copyfrom-rev: 3 Node-copyfrom-path: trunk/z Text-copy-source-md5: a8a78d0ff555c931f045b6f448129846 Prop-content-length: 34 Content-length: 34 K 13 svn:mergeinfo V 0 PROPS-END