Mercurial > hg
view tests/test-revset-outgoing.t @ 16363:2cdd7e63211b
parsers: incrementally parse the revlog index in C
We only parse entries in a revlog index file when they are actually
needed, and cache them when first requested.
This makes a huge difference to performance on large revlogs when
accessing the tip revision or performing a handful of numeric lookups
(very common cases). For instance, "hg --time tip --template {node}"
on a tree with 300,000 revs takes 0.15 before, 0.02 after.
Even for revlog-intensive operations (e.g. running "hg log" to
completion), the lazy approach is about 1% faster than the eager
parse_index2.
author | Bryan O'Sullivan <bryano@fb.com> |
---|---|
date | Thu, 05 Apr 2012 13:00:35 -0700 |
parents | fc8c7a5ccc4a |
children | f2719b387380 |
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$ cat >> $HGRCPATH <<EOF > [extensions] > graphlog= > > [alias] > tlog = log --template "{rev}:{node|short}: '{desc}' {branches}\n" > tglog = tlog -G > tout = out --template "{rev}:{node|short}: '{desc}' {branches}\n" > EOF $ hg init a $ cd a $ echo a > a $ hg ci -Aqm0 $ echo foo >> a $ hg ci -Aqm1 $ hg up -q 0 $ hg branch stable marked working directory as branch stable (branches are permanent and global, did you want a bookmark?) $ echo bar >> a $ hg ci -qm2 $ hg tglog @ 2:7bee6c3bea3a: '2' stable | | o 1:3560197d8331: '1' |/ o 0:f7b1eb17ad24: '0' $ cd .. $ hg clone -q a#stable b $ cd b $ cat .hg/hgrc [paths] default = $TESTTMP/a#stable (glob) $ echo red >> a $ hg ci -qm3 $ hg up -q default $ echo blue >> a $ hg ci -qm4 $ hg tglog @ 3:f0461977a3db: '4' | | o 2:1d4099801a4e: '3' stable | | | o 1:7bee6c3bea3a: '2' stable |/ o 0:f7b1eb17ad24: '0' $ hg tout comparing with $TESTTMP/a (glob) searching for changes 2:1d4099801a4e: '3' stable $ hg tlog -r 'outgoing()' 2:1d4099801a4e: '3' stable $ hg tout ../a#default comparing with ../a searching for changes 3:f0461977a3db: '4' $ hg tlog -r 'outgoing("../a#default")' 3:f0461977a3db: '4' $ echo "green = ../a#default" >> .hg/hgrc $ cat .hg/hgrc [paths] default = $TESTTMP/a#stable (glob) green = ../a#default $ hg tout green comparing with $TESTTMP/a (glob) searching for changes 3:f0461977a3db: '4' $ hg tlog -r 'outgoing("green")' 3:f0461977a3db: '4'