Mercurial > hg
view .hgignore @ 26480:6ae14d1ca3aa
util.chunkbuffer: avoid extra mutations when reading partial chunks
Previously, a read(N) where N was less than the length of the first
available chunk would mutate the deque instance twice and allocate a new
str from the slice of the existing chunk. Profiling drawed my attention
to these as a potential hot spot during changegroup reading.
This patch makes the code more complicated in order to avoid the
aforementioned 3 operations.
On a pre-generated mozilla-central gzip bundle, this series has the
following impact on `hg unbundle` performance on my MacBook Pro:
before: 358.21 real 317.69 user 38.49 sys
after: 301.57 real 262.69 user 37.11 sys
delta: -56.64 real -55.00 user -1.38 sys
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Mon, 05 Oct 2015 17:36:32 -0700 |
parents | 3232f92360d4 |
children | a1eff44c432b |
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syntax: glob *.elc *.tmp *.orig *.rej *~ *.mergebackup *.o *.so *.dll *.exe *.pyd *.pyc *.pyo *$py.class *.swp *.prof *.zip \#*\# .\#* tests/.coverage* tests/annotated tests/*.err tests/htmlcov build contrib/hgsh/hgsh contrib/vagrant/.vagrant dist packages doc/common.txt doc/*.[0-9] doc/*.[0-9].txt doc/*.[0-9].gendoc.txt doc/*.[0-9].{x,ht}ml MANIFEST MANIFEST.in patches mercurial/__version__.py mercurial/hgpythonlib.h mercurial.egg-info .DS_Store tags cscope.* .idea/* i18n/hg.pot locale/*/LC_MESSAGES/hg.mo hgext/__index__.py # files installed with a local --pure build mercurial/base85.py mercurial/bdiff.py mercurial/diffhelpers.py mercurial/mpatch.py mercurial/osutil.py mercurial/parsers.py syntax: regexp ^\.pc/ ^\.(pydev)?project # hackable windows distribution additions ^hg-python ^hg.py$