Mercurial > hg
view tests/test-profile.t @ 30706:2e4862646f02
repair: speed up stripping of many roots
repair.strip() expects a set of root revisions to strip. It then
builds the full set of descedants by walking the descandants of
each. It is rare that more than a few roots get passed in, but if that
happens, it will wastefully walk the changelog for each root. So let's
just walk it once.
I noticed this because the narrowhg extension was passing not only
roots, but all the commits to strip. When there were tens of thousands
of commits to strip, this resulted in quadratic behavior with that
extension.
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Wed, 04 Jan 2017 10:07:12 -0800 |
parents | 3fd53cc1aad8 |
children | 262c2be8ea5a |
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test --time $ hg --time help -q help 2>&1 | grep time > /dev/null $ hg init a $ cd a #if lsprof test --profile $ prof='hg --config profiling.type=ls --profile' $ $prof st 2>../out $ grep CallCount ../out > /dev/null || cat ../out $ $prof --config profiling.output=../out st $ grep CallCount ../out > /dev/null || cat ../out $ $prof --config profiling.output=blackbox --config extensions.blackbox= st $ grep CallCount .hg/blackbox.log > /dev/null || cat .hg/blackbox.log $ $prof --config profiling.format=text st 2>../out $ grep CallCount ../out > /dev/null || cat ../out $ echo "[profiling]" >> $HGRCPATH $ echo "format=kcachegrind" >> $HGRCPATH $ $prof st 2>../out $ grep 'events: Ticks' ../out > /dev/null || cat ../out $ $prof --config profiling.output=../out st $ grep 'events: Ticks' ../out > /dev/null || cat ../out #endif #if lsprof serve Profiling of HTTP requests works $ $prof --config profiling.format=text --config profiling.output=../profile.log serve -d -p $HGPORT --pid-file ../hg.pid -A ../access.log $ cat ../hg.pid >> $DAEMON_PIDS $ hg -q clone -U http://localhost:$HGPORT ../clone A single profile is logged because file logging doesn't append $ grep CallCount ../profile.log | wc -l \s*1 (re) #endif Install an extension that can sleep and guarantee a profiler has time to run $ cat >> sleepext.py << EOF > import time > from mercurial import cmdutil, commands > cmdtable = {} > command = cmdutil.command(cmdtable) > @command('sleep', [], 'hg sleep') > def sleep(ui, *args, **kwargs): > time.sleep(0.1) > EOF $ cat >> $HGRCPATH << EOF > [extensions] > sleep = `pwd`/sleepext.py > EOF statistical profiler works $ hg --profile sleep 2>../out $ grep Sample ../out Sample count: \d+ (re) Various statprof formatters work $ hg --profile --config profiling.statformat=byline sleep 2>../out $ head -n 1 ../out % cumulative self $ grep Sample ../out Sample count: \d+ (re) $ hg --profile --config profiling.statformat=bymethod sleep 2>../out $ head -n 1 ../out % cumulative self $ grep Sample ../out Sample count: \d+ (re) $ hg --profile --config profiling.statformat=hotpath sleep 2>../out $ grep Sample ../out Sample count: \d+ (re) $ hg --profile --config profiling.statformat=json sleep 2>../out $ cat ../out \[\[\d+.* (re) $ cd ..