Mercurial > hg
view tests/test-revlog-packentry.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 | 67fb33eb3add |
children | ec5886db9dc6 |
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$ hg init repo $ cd repo $ touch foo $ hg ci -Am 'add foo' adding foo $ hg up -C null 0 files updated, 0 files merged, 1 files removed, 0 files unresolved this should be stored as a delta against rev 0 $ echo foo bar baz > foo $ hg ci -Am 'add foo again' adding foo created new head $ hg debugindex .hg/store/data/foo.i rev offset length base linkrev nodeid p1 p2 0 0 0 0 0 b80de5d13875 000000000000 000000000000 1 0 24 0 1 0376abec49b8 000000000000 000000000000