Mercurial > hg
view tests/test-revlog-mmapindex.t @ 35330:0c1aff6d73a7
revset: use phasecache.getrevset to calculate public()
Other revsets like secret(), draft(), _nonpublic() are using
phasescache.getrevset already. The latter is more efficient after D1606.
So let's migrate the public() revset function too.
Tested using:
$ hg debugshell --hidden --cwd hg-committed`
In [1]: %timeit len(repo.revs('public()'))
* Before D1606: 10 loops, best of 3: 22.5 ms per loop
* Before this change, after D1606: 10 loops, best of 3: 28.6 ms per loop
* After this change: 10 loops, best of 3: 20.2 ms per loop
Therefore `public()` revset becomes even slightly faster after the data
structure change by D1606. A similar performance win could also be observed
on a large repo.
A side effect is `phasecache.getrevset` needs to take a `subset` parameter.
That was added with a default value so it won't cause BC issues.
Differential Revision: https://phab.mercurial-scm.org/D1620
author | Jun Wu <quark@fb.com> |
---|---|
date | Fri, 08 Dec 2017 14:20:34 -0800 |
parents | b0c97e44576f |
children | 4441705b7111 |
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create verbosemmap.py $ cat << EOF > verbosemmap.py > # extension to make util.mmapread verbose > > from __future__ import absolute_import > > from mercurial import ( > extensions, > util, > ) > > def extsetup(ui): > def mmapread(orig, fp): > ui.write("mmapping %s\n" % fp.name) > ui.flush() > return orig(fp) > > extensions.wrapfunction(util, 'mmapread', mmapread) > EOF setting up base repo $ hg init a $ cd a $ touch a $ hg add a $ hg commit -qm base $ for i in `$TESTDIR/seq.py 1 100` ; do > echo $i > a > hg commit -qm $i > done set up verbosemmap extension $ cat << EOF >> $HGRCPATH > [extensions] > verbosemmap=$TESTTMP/verbosemmap.py > EOF mmap index which is now more than 4k long $ hg log -l 5 -T '{rev}\n' --config experimental.mmapindexthreshold=4k mmapping $TESTTMP/a/.hg/store/00changelog.i (glob) 100 99 98 97 96 do not mmap index which is still less than 32k $ hg log -l 5 -T '{rev}\n' --config experimental.mmapindexthreshold=32k 100 99 98 97 96 $ cd ..