Mercurial > hgsubversion
view tests/fixtures/fetch_missing_files_subdir.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 | e58c2f1de059 |
| children |
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SVN-fs-dump-format-version: 2 UUID: 90158077-d23c-442d-9351-5dd160359962 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2008-11-25T21:55:11.516061Z PROPS-END Revision-number: 1 Prop-content-length: 112 Content-length: 112 K 7 svn:log V 12 initial add. K 10 svn:author V 5 durin K 8 svn:date V 27 2008-11-25T22:00:55.483808Z PROPS-END Node-path: foo Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: foo/branches Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: foo/tags Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: foo/trunk Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: foo/trunk/foo Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 4 Text-content-md5: d3b07384d113edec49eaa6238ad5ff00 Content-length: 14 PROPS-END foo Revision-number: 2 Prop-content-length: 130 Content-length: 130 K 7 svn:log V 30 commit bar in the wrong place. K 10 svn:author V 5 durin K 8 svn:date V 27 2008-11-25T22:01:32.415795Z PROPS-END Node-path: foo/bar Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: foo/bar/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: foo/bar/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: foo/bar/delta Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 6 Text-content-md5: d2840cc81bc032bd1141b56687d0f93c Content-length: 16 PROPS-END delta Node-path: foo/bar/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: 126 Content-length: 126 K 7 svn:log V 26 move bar to the sane place K 10 svn:author V 5 durin K 8 svn:date V 27 2008-11-25T22:02:24.410165Z PROPS-END Node-path: foo/trunk/bar Node-kind: dir Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: foo/bar Node-path: foo/bar Node-action: delete