Mercurial > hgsubversion
view tests/fixtures/empty_dir_in_trunk_not_repo_root.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 | 6ec5b5fc5b4d |
| children |
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SVN-fs-dump-format-version: 2 UUID: c866b883-4c03-404b-8609-dade481701a6 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2009-04-15T03:39:30.544797Z PROPS-END Revision-number: 1 Prop-content-length: 104 Content-length: 104 K 7 svn:log V 5 trunk K 10 svn:author V 5 durin K 8 svn:date V 27 2009-04-15T03:39:31.069518Z PROPS-END Node-path: project Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: project/trunk Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Revision-number: 2 Prop-content-length: 118 Content-length: 118 K 7 svn:log V 18 file and empty dir K 10 svn:author V 5 durin K 8 svn:date V 27 2009-04-15T03:39:32.069497Z PROPS-END Node-path: project/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 Node-path: project/trunk/narf Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END