Mercurial > hgsubversion
view tests/fixtures/renametagdir.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 | d380e7e4175a |
| children |
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SVN-fs-dump-format-version: 2 UUID: b3e24de6-f874-406f-9561-e48db081ff5e Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2010-01-20T12:58:05.107637Z PROPS-END Revision-number: 1 Prop-content-length: 104 Content-length: 104 K 7 svn:log V 3 btt K 10 svn:author V 7 pmezard K 8 svn:date V 27 2010-01-20T12:58:06.111903Z 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: 110 Content-length: 110 K 7 svn:log V 9 Add file. K 10 svn:author V 7 pmezard K 8 svn:date V 27 2010-01-20T12:58:07.088858Z PROPS-END Node-path: trunk/a Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 60b725f10c9c85c70d97880dfe8191b3 Text-content-sha1: 3f786850e387550fdab836ed7e6dc881de23001b Content-length: 12 PROPS-END a Revision-number: 3 Prop-content-length: 108 Content-length: 108 K 7 svn:log V 7 Branch. K 10 svn:author V 7 pmezard K 8 svn:date V 27 2010-01-20T12:58:10.062719Z PROPS-END Node-path: branches/test Node-kind: dir Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk Revision-number: 4 Prop-content-length: 112 Content-length: 112 K 7 svn:log V 10 First tag. K 10 svn:author V 7 pmezard K 8 svn:date V 27 2010-01-20T12:58:12.060717Z PROPS-END Node-path: tags/test-0.1 Node-kind: dir Node-action: add Node-copyfrom-rev: 3 Node-copyfrom-path: branches/test Revision-number: 5 Prop-content-length: 112 Content-length: 112 K 7 svn:log V 10 Weird tag. K 10 svn:author V 7 pmezard K 8 svn:date V 27 2010-01-20T12:58:12.110400Z PROPS-END Node-path: tags/test-0.1/test Node-kind: dir Node-action: add Node-copyfrom-rev: 3 Node-copyfrom-path: branches/test Revision-number: 6 Prop-content-length: 115 Content-length: 115 K 7 svn:log V 13 Fix tag pt 1. K 10 svn:author V 7 pmezard K 8 svn:date V 27 2010-01-20T12:58:12.169328Z PROPS-END Node-path: tags/test-0.1/test Node-action: delete Node-path: tags/test-0.1-real Node-kind: dir Node-action: add Node-copyfrom-rev: 5 Node-copyfrom-path: tags/test-0.1/test Revision-number: 7 Prop-content-length: 115 Content-length: 115 K 7 svn:log V 13 Remove weird. K 10 svn:author V 7 pmezard K 8 svn:date V 27 2010-01-20T12:58:12.212355Z PROPS-END Node-path: tags/test-0.1 Node-action: delete Revision-number: 8 Prop-content-length: 115 Content-length: 115 K 7 svn:log V 13 Fix tag pt 2. K 10 svn:author V 7 pmezard K 8 svn:date V 27 2010-01-20T12:58:12.317421Z PROPS-END Node-path: tags/test-0.1 Node-kind: dir Node-action: add Node-copyfrom-rev: 7 Node-copyfrom-path: tags/test-0.1-real Node-path: tags/test-0.1-real Node-action: delete