Mercurial > hg
view tests/test-diff-hashes.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 | 4c94b6d0fb1c |
children | 117f9190c1ba |
line wrap: on
line source
$ hg init a $ cd a $ hg diff inexistent1 inexistent2 inexistent1: No such file or directory inexistent2: No such file or directory $ echo bar > foo $ hg add foo $ hg ci -m 'add foo' $ echo foobar > foo $ hg ci -m 'change foo' $ hg --quiet diff -r 0 -r 1 --- a/foo Thu Jan 01 00:00:00 1970 +0000 +++ b/foo Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +1,1 @@ -bar +foobar $ hg diff -r 0 -r 1 diff -r a99fb63adac3 -r 9b8568d3af2f foo --- a/foo Thu Jan 01 00:00:00 1970 +0000 +++ b/foo Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +1,1 @@ -bar +foobar $ hg --verbose diff -r 0 -r 1 diff -r a99fb63adac3 -r 9b8568d3af2f foo --- a/foo Thu Jan 01 00:00:00 1970 +0000 +++ b/foo Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +1,1 @@ -bar +foobar $ hg --debug diff -r 0 -r 1 diff -r a99fb63adac3f31816a22f665bc3b7a7655b30f4 -r 9b8568d3af2f1749445eef03aede868a6f39f210 foo --- a/foo Thu Jan 01 00:00:00 1970 +0000 +++ b/foo Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +1,1 @@ -bar +foobar