Mercurial > hgsubversion
view tests/fixtures/branchtagcollision.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 | f28e0f54a6ef |
| children |
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SVN-fs-dump-format-version: 2 UUID: 764a21f0-1c44-4bc9-b81b-0321cc58934d Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2011-05-24T15:46:13.951233Z PROPS-END Revision-number: 1 Prop-content-length: 114 Content-length: 114 K 7 svn:log V 14 Initial commit K 10 svn:author V 5 augie K 8 svn:date V 27 2011-05-24T15:46:14.518711Z 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: 111 Content-length: 111 K 7 svn:log V 11 Added fileA K 10 svn:author V 5 augie K 8 svn:date V 27 2011-05-24T15:46:14.922304Z PROPS-END Node-path: trunk/fileA Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 6 Text-content-md5: 017715e60b9a9450d604e0d489ebc83a Text-content-sha1: d0bcb0015aaadb5317419294648c8da6714af81f Content-length: 16 PROPS-END fileA Revision-number: 3 Prop-content-length: 112 Content-length: 112 K 7 svn:log V 12 added branch K 10 svn:author V 5 augie K 8 svn:date V 27 2011-05-24T15:46:15.328642Z PROPS-END Node-path: branches/A Node-kind: dir Node-action: add Node-copyfrom-rev: 1 Node-copyfrom-path: trunk Node-path: branches/A/fileA Node-kind: file Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk/fileA Text-copy-source-md5: 017715e60b9a9450d604e0d489ebc83a Text-copy-source-sha1: d0bcb0015aaadb5317419294648c8da6714af81f Revision-number: 4 Prop-content-length: 111 Content-length: 111 K 7 svn:log V 11 Added fileB K 10 svn:author V 5 augie K 8 svn:date V 27 2011-05-24T15:46:15.616098Z PROPS-END Node-path: trunk/fileB Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 6 Text-content-md5: 4eb63bbdec5dfa425e3735dc1d4c5ee8 Text-content-sha1: 03939175ceac92b9c6464d037a0243e22563c423 Content-length: 16 PROPS-END fileB Revision-number: 5 Prop-content-length: 113 Content-length: 113 K 7 svn:log V 13 added bad tag K 10 svn:author V 5 augie K 8 svn:date V 27 2011-05-24T15:46:16.057440Z PROPS-END Node-path: tags/A Node-kind: dir Node-action: add Node-copyfrom-rev: 1 Node-copyfrom-path: trunk Node-path: tags/A/fileA Node-kind: file Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk/fileA Text-copy-source-md5: 017715e60b9a9450d604e0d489ebc83a Text-copy-source-sha1: d0bcb0015aaadb5317419294648c8da6714af81f Node-path: tags/A/fileB Node-kind: file Node-action: add Node-copyfrom-rev: 4 Node-copyfrom-path: trunk/fileB Text-copy-source-md5: 4eb63bbdec5dfa425e3735dc1d4c5ee8 Text-copy-source-sha1: 03939175ceac92b9c6464d037a0243e22563c423