Mercurial > hg
view tests/test-schemes.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 | bf1d5c223ac0 |
children | 393e44324037 |
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#require serve $ cat <<EOF >> $HGRCPATH > [extensions] > schemes= > > [schemes] > l = http://localhost:$HGPORT/ > parts = http://{1}:$HGPORT/ > z = file:\$PWD/ > EOF $ hg init test $ cd test $ echo a > a $ hg ci -Am initial adding a invalid scheme $ hg log -R z:z abort: no '://' in scheme url 'z:z' [255] http scheme $ hg serve -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log $ cat hg.pid >> $DAEMON_PIDS $ hg incoming l:// comparing with l:// searching for changes no changes found [1] check that {1} syntax works $ hg incoming --debug parts://localhost using http://localhost:$HGPORT/ sending capabilities command comparing with parts://localhost/ query 1; heads sending batch command searching for changes all remote heads known locally no changes found [1] check that paths are expanded $ PWD=`pwd` hg incoming z:// comparing with z:// searching for changes no changes found [1] check that debugexpandscheme outputs the canonical form $ hg debugexpandscheme bb://user/repo https://bitbucket.org/user/repo expanding an unknown scheme emits the input $ hg debugexpandscheme foobar://this/that foobar://this/that expanding a canonical URL emits the input $ hg debugexpandscheme https://bitbucket.org/user/repo https://bitbucket.org/user/repo errors $ cat errors.log $ cd ..