Mercurial > hgsubversion
view tests/fixtures/filecase.sh @ 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 | 3a9d6cd18332 |
children |
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#!/bin/sh # # Generate filecase.svndump # WARNING: this script must be run on a case-sensitive file system # mkdir temp cd temp mkdir project-orig cd project-orig mkdir trunk cd .. svnadmin create testrepo svnurl=file://`pwd`/testrepo svn import project-orig $svnurl -m "init project" svn co $svnurl project cd project/trunk # Test files and directories differing in case only echo a > a echo A > A echo b > b mkdir d echo a > d/a mkdir D echo a > D/a mkdir e echo a > e/a mkdir f echo a > f/a echo F > F svn add a A b d D e f F svn ci -m 'add files' # Rename files and directories, changing only their case svn mv b B svn mv d/a d/A svn mv e E svn ci -m 'change case' cd ../.. svnadmin dump testrepo > ../filecase.svndump