Mercurial > hgsubversion
view tests/fixtures/mergeexternals.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 | ba65c0b01d4f |
| children |
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SVN-fs-dump-format-version: 2 UUID: b402ceb9-6185-4dce-93a1-92de515c5c8b Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2011-02-25T13:54:38.654361Z PROPS-END Revision-number: 1 Prop-content-length: 114 Content-length: 114 K 7 svn:log V 12 init project K 10 svn:author V 7 pmezard K 8 svn:date V 27 2011-02-25T13:54:38.675100Z 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: 109 Content-length: 109 K 7 svn:log V 8 addfiles K 10 svn:author V 7 pmezard K 8 svn:date V 27 2011-02-25T13:54:39.078800Z PROPS-END Node-path: trunk/common Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk/common/ext Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk/common/ext/c Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 2cd6ee2c70b0bde53fbe6cac3c8b8bb1 Text-content-sha1: 2b66fd261ee5c6cfc8de7fa466bab600bcfe4f69 Content-length: 12 PROPS-END c Node-path: trunk/d1 Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk/d1/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 Node-path: trunk/d2 Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk/d2/b Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 3b5d5c3712955042212316173ccf37be Text-content-sha1: 89e6c98d92887913cadf06b2adb97f26cde4849b Content-length: 12 PROPS-END b Revision-number: 3 Prop-content-length: 114 Content-length: 114 K 7 svn:log V 12 addexternals K 10 svn:author V 7 pmezard K 8 svn:date V 27 2011-02-25T13:54:41.071346Z PROPS-END Node-path: trunk/d1 Node-kind: dir Node-action: change Prop-content-length: 58 Content-length: 58 K 13 svn:externals V 23 ^/trunk/common/ext ext PROPS-END Node-path: trunk/d2 Node-kind: dir Node-action: change Prop-content-length: 58 Content-length: 58 K 13 svn:externals V 23 ^/trunk/common/ext ext PROPS-END Revision-number: 4 Prop-content-length: 110 Content-length: 110 K 7 svn:log V 9 addbranch K 10 svn:author V 7 pmezard K 8 svn:date V 27 2011-02-25T13:54:44.043149Z PROPS-END Node-path: branches/branch Node-kind: dir Node-action: add Node-copyfrom-rev: 3 Node-copyfrom-path: trunk Revision-number: 5 Prop-content-length: 113 Content-length: 113 K 7 svn:log V 11 touchbranch K 10 svn:author V 7 pmezard K 8 svn:date V 27 2011-02-25T13:54:45.080319Z PROPS-END Node-path: branches/branch/d3 Node-kind: dir Node-action: add Prop-content-length: 59 Content-length: 59 K 13 svn:externals V 24 ^/trunk/common/ext ext3 PROPS-END Node-path: branches/branch/d3/d Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: e29311f6f1bf1af907f9ef9f44b8328b Text-content-sha1: e983f374794de9c64e3d1c1de1d490c0756eeeff Content-length: 12 PROPS-END d Revision-number: 6 Prop-content-length: 106 Content-length: 106 K 7 svn:log V 5 merge K 10 svn:author V 7 pmezard K 8 svn:date V 27 2011-02-25T13:54:48.049151Z PROPS-END Node-path: trunk Node-kind: dir Node-action: change Prop-content-length: 55 Content-length: 55 K 13 svn:mergeinfo V 20 /branches/branch:4-5 PROPS-END Node-path: trunk/d3 Node-kind: dir Node-action: add Node-copyfrom-rev: 5 Node-copyfrom-path: branches/branch/d3 Prop-content-length: 59 Content-length: 59 K 13 svn:externals V 24 ^/trunk/common/ext ext3 PROPS-END