Mercurial > hg
view tests/test-empty-dir.t @ 14087:f3d585c9b042
graphmod: restore generator nature of dagwalker
9966c95b8c4f introduced the ability to walk the DAG
given arbitrary revisions, but changed the behaviour of
it to return a list of all nodes (and create a changectx
for each one) rather than doing it lazily.
This has a pretty significant impact on performance for large
repositories (tested on CPython repo, with output disabled):
$ time hg glog
real 0m2.642s
user 0m2.560s
sys 0m0.080s
Before 9966c95b8c4f:
$ time hg glog
real 0m0.143s
user 0m0.112s
sys 0m0.032s
And after this fix:
$ time hg glog
real 0m0.213s
user 0m0.184s
sys 0m0.028s
author | Idan Kamara <idankk86@gmail.com> |
---|---|
date | Sat, 30 Apr 2011 15:10:58 +0300 |
parents | 3b165c127690 |
children |
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$ hg init $ echo 123 > a $ hg add a $ hg commit -m "first" a $ mkdir sub $ echo 321 > sub/b $ hg add sub/b $ hg commit -m "second" sub/b $ cat sub/b 321 $ hg co 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ cat sub/b 2>/dev/null || echo "sub/b not present" sub/b not present $ test -d sub || echo "sub not present" sub not present