Mercurial > hg
diff tests/test-fastannotate-diffopts.t @ 39210:1ddb296e0dee
fastannotate: initial import from Facebook's hg-experimental
I made as few changes as I could to get the tests to pass, but this
was a bit involved due to some churn in the blame code since someone
last gave fastannotate any TLC.
There's still follow-up work here to rip out support for old versions
of hg and to integrate the protocol with modern standards.
Some performance numbers (all on my 2016 MacBook Pro with a 2.6Ghz i7):
Mercurial mercurial/manifest.py
traditional blame
time: real 1.050 secs (user 0.990+0.000 sys 0.060+0.000)
build cache
time: real 5.900 secs (user 5.720+0.000 sys 0.110+0.000)
fastannotate
time: real 0.120 secs (user 0.100+0.000 sys 0.020+0.000)
Mercurial mercurial/localrepo.py
traditional blame
time: real 3.330 secs (user 3.220+0.000 sys 0.070+0.000)
build cache
time: real 30.610 secs (user 30.190+0.000 sys 0.230+0.000)
fastannotate
time: real 0.180 secs (user 0.160+0.000 sys 0.020+0.000)
mozilla-central dom/ipc/ContentParent.cpp
traditional blame
time: real 7.640 secs (user 7.210+0.000 sys 0.380+0.000)
build cache
time: real 98.650 secs (user 97.000+0.000 sys 0.950+0.000)
fastannotate
time: real 1.580 secs (user 1.340+0.000 sys 0.240+0.000)
mozilla-central dom/base/nsDocument.cpp
traditional blame
time: real 17.110 secs (user 16.490+0.000 sys 0.500+0.000)
build cache
time: real 399.750 secs (user 394.520+0.000 sys 2.610+0.000)
fastannotate
time: real 1.780 secs (user 1.530+0.000 sys 0.240+0.000)
So building the cache is expensive (but might be faster with xdiff
enabled), but the blame results are *way* faster.
Differential Revision: https://phab.mercurial-scm.org/D3994
author | Augie Fackler <augie@google.com> |
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date | Mon, 30 Jul 2018 22:50:00 -0400 |
parents | |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tests/test-fastannotate-diffopts.t Mon Jul 30 22:50:00 2018 -0400 @@ -0,0 +1,33 @@ + $ cat >> $HGRCPATH << EOF + > [extensions] + > fastannotate= + > EOF + + $ hg init repo + $ cd repo + +changes to whitespaces + + $ cat >> a << EOF + > 1 + > + > + > 2 + > EOF + $ hg commit -qAm '1' + $ cat > a << EOF + > 1 + > + > 2 + > + > + > 3 + > EOF + $ hg commit -m 2 + $ hg fastannotate -wB a + 0: 1 + 0: + 1: 2 + 0: + 1: + 1: 3