Mercurial > hgsubversion
view tests/fixtures/branch_delete_parent_dir.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 | 45df4d9320fa |
| children |
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SVN-fs-dump-format-version: 2 UUID: 60132d6f-a460-4b38-8ae6-633264894f73 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2009-06-30T23:57:20.562207Z PROPS-END Revision-number: 1 Prop-content-length: 101 Content-length: 101 K 7 svn:log V 3 btt K 10 svn:author V 4 maxb K 8 svn:date V 27 2009-06-30T23:57:21.078798Z 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: 106 Content-length: 106 K 7 svn:log V 8 add file K 10 svn:author V 4 maxb K 8 svn:date V 27 2009-06-30T23:57:22.098826Z PROPS-END Node-path: trunk/foo Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 4 Text-content-md5: d3b07384d113edec49eaa6238ad5ff00 Text-content-sha1: f1d2d2f924e986ac86fdf7b36c94bcdf32beec15 Content-length: 14 PROPS-END foo Revision-number: 3 Prop-content-length: 104 Content-length: 104 K 7 svn:log V 6 branch K 10 svn:author V 4 maxb K 8 svn:date V 27 2009-06-30T23:57:25.055724Z PROPS-END Node-path: branches/dev_branch Node-kind: dir Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk Revision-number: 4 Prop-content-length: 118 Content-length: 118 K 7 svn:log V 19 delete branches dir K 10 svn:author V 4 maxb K 8 svn:date V 27 2009-06-30T23:57:27.072926Z PROPS-END Node-path: branches Node-action: delete