Mercurial > hgsubversion
view tests/fixtures/branch_prop_edit.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 | cf6fe8457570 |
| children |
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SVN-fs-dump-format-version: 2 UUID: ab14e60b-7e4b-473f-980a-26ace458a00f Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2008-12-12T00:18:13.309956Z PROPS-END Revision-number: 1 Prop-content-length: 114 Content-length: 114 K 7 svn:log V 14 branches trunk K 10 svn:author V 5 durin K 8 svn:date V 27 2008-12-12T00:18:14.083854Z 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: 105 Content-length: 105 K 7 svn:log V 6 Files. K 10 svn:author V 5 durin K 8 svn:date V 27 2008-12-12T00:18:16.270290Z PROPS-END Node-path: trunk/alpha Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 6 Text-content-md5: 9f9f90dbe3e5ee1218c86b8839db1995 Content-length: 16 PROPS-END alpha Node-path: trunk/beta Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 5 Text-content-md5: f0cf2a92516045024a0c99147b28f05b Content-length: 15 PROPS-END beta Node-path: trunk/gamma Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 6 Text-content-md5: 303febb9068384eca46b5b6516843b35 Content-length: 16 PROPS-END gamma Revision-number: 3 Prop-content-length: 113 Content-length: 113 K 7 svn:log V 13 make a branch K 10 svn:author V 5 durin K 8 svn:date V 27 2008-12-12T00:18:19.069446Z 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: 125 Content-length: 125 K 7 svn:log V 25 Add a file on the branch. K 10 svn:author V 5 durin K 8 svn:date V 27 2008-12-12T00:18:21.088611Z PROPS-END Node-path: branches/dev_branch/epsilon Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 8 Text-content-md5: c40719840583e3f3e6744c02828d7cd9 Content-length: 18 PROPS-END epsilon Revision-number: 5 Prop-content-length: 124 Content-length: 124 K 7 svn:log V 24 Commit bogus propchange. K 10 svn:author V 5 durin K 8 svn:date V 27 2008-12-12T00:18:23.078263Z PROPS-END Node-path: branches/dev_branch Node-kind: dir Node-action: change Prop-content-length: 37 Content-length: 37 K 10 svn:ignore V 6 delta PROPS-END