Mercurial > hg
view tests/test-debian-packages.t @ 35599:af25237be091
perf: add threading capability to perfbdiff
Since we are releasing the GIL during diffing, it is interesting to see how a
thread pool would perform on diffing. We add a new `--threads` argument to
commands. Synchronizing the thread pool is a bit complex because we want to be
able to reuse it from one run to another.
On my computer (i7 with 4 cores + hyperthreading), I get the following data for
about 12000 revisions:
threads wall comb wall gain comb overhead
none 31.596715 31.59 0.00% 0.00%
1 31.621228 31.62 -0.08% 0.09%
2 16.406202 32.8 48.08% 3.83%
3 11.598334 34.76 63.29% 10.03%
4 9.205421 36.77 70.87% 16.40%
5 8.517604 42.51 73.04% 34.57%
6 7.94645 47.58 74.85% 50.62%
7 7.434972 51.92 76.47% 64.36%
8 7.070638 55.34 77.62% 75.18%
Compared to the feature disabled (threads=0), the overhead is negligible with
the threading code (threads=1), and the gain is already 48% with two threads.
author | Boris Feld <boris.feld@octobus.net> |
---|---|
date | Sun, 17 Dec 2017 04:31:27 +0100 |
parents | 0133ca39c688 |
children | 7574ccd87200 |
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#require test-repo slow debhelper debdeps $ . "$TESTDIR/helpers-testrepo.sh" $ testrepohgenv Ensure debuild doesn't run the testsuite, as that could get silly. $ DEB_BUILD_OPTIONS=nocheck $ export DEB_BUILD_OPTIONS $ OUTPUTDIR=`pwd` $ export OUTPUTDIR $ cd "$TESTDIR"/.. $ make deb > $OUTPUTDIR/build.log 2>&1 $ cd $OUTPUTDIR $ ls *.deb | grep -v 'dbg' mercurial-common_*.deb (glob) mercurial_*.deb (glob) main deb should have .so but no .py $ dpkg --contents mercurial_*.deb | egrep '(localrepo|parsers)' * ./usr/lib/python2.7/dist-packages/mercurial/cext/parsers*.so (glob) mercurial-common should have py but no .so or pyc $ dpkg --contents mercurial-common_*.deb | egrep '(localrepo|parsers.*so)' * ./usr/lib/python2.7/dist-packages/mercurial/localrepo.py (glob) zsh completions should be in the common package $ dpkg --contents mercurial-common_*.deb | egrep 'zsh.*[^/]$' * ./usr/share/zsh/vendor-completions/_hg (glob) chg should be installed alongside hg, in the 'mercurial' package $ dpkg --contents mercurial_*.deb | egrep 'chg$' * ./usr/bin/chg (glob) chg should come with a man page $ dpkg --contents mercurial_*.deb | egrep 'man.*chg' * ./usr/share/man/man1/chg.1.gz (glob)