Mercurial > hgsubversion
view tests/fixtures/test_files_copied_from_outside_btt.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 | 496c0354019c |
| children |
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SVN-fs-dump-format-version: 2 UUID: df2126f7-00ab-4d49-b42c-7e981dde0bcf Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2008-10-07T22:49:12.059692Z PROPS-END Revision-number: 1 Prop-content-length: 111 Content-length: 111 K 7 svn:log V 11 Empty dirs. K 10 svn:author V 5 durin K 8 svn:date V 27 2008-10-07T22:49:41.118037Z PROPS-END Node-path: branches Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: tags 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: 108 Content-length: 108 K 7 svn:log V 9 Add alpha K 10 svn:author V 5 durin K 8 svn:date V 27 2008-10-07T23:23:02.991743Z PROPS-END Node-path: trunk/alpha Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 12 Text-content-md5: 3c72ebf8bbd7fa88b1fdcee5398b5a17 Content-length: 22 PROPS-END file: alpha Revision-number: 3 Prop-content-length: 115 Content-length: 115 K 7 svn:log V 15 Add third_party K 10 svn:author V 5 durin K 8 svn:date V 27 2008-10-27T03:16:13.831333Z PROPS-END Node-path: third_party Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: third_party/magic Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: third_party/magic/the_magic_software Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 7 Text-content-md5: bc82cb068ef102a1f4e296992e5979ef Content-length: 17 PROPS-END magic! Revision-number: 4 Prop-content-length: 131 Content-length: 131 K 7 svn:log V 31 Copy magic in from third_party. K 10 svn:author V 5 durin K 8 svn:date V 27 2008-10-27T03:16:32.737023Z PROPS-END Node-path: trunk/magic Node-kind: dir Node-action: add Node-copyfrom-rev: 3 Node-copyfrom-path: third_party/magic Prop-content-length: 34 Content-length: 34 K 13 svn:mergeinfo V 0 PROPS-END