[Bug 4379] New: hg log -f -r 'a::b' is very slow
mercurial-bugs at selenic.com
mercurial-bugs at selenic.com
Sat Sep 20 00:21:44 CDT 2014
http://bz.selenic.com/show_bug.cgi?id=4379
Priority: normal
Bug ID: 4379
CC: mercurial-devel at selenic.com
Assignee: bugzilla at selenic.com
Summary: hg log -f -r 'a::b' is very slow
Severity: bug
Classification: Unclassified
OS: Linux
Reporter: sid0 at fb.com
Hardware: PC
Status: UNCONFIRMED
Version: unspecified
Component: Mercurial
Product: Mercurial
On mozilla-central with hg at 48791c2bea1c:
$ time hg log -f -r 'default~60000::default' -T 'x\n' > /dev/null
hg log -f -r 'default~60000::default' -T 'x\n' > /dev/null 505.86s user 0.30s
system 99% cpu 8:26.75 total
$ time hg log -r 'default~60000::default' -T 'x\n' > /dev/null
hg log -r 'default~60000::default' -T 'x\n' > /dev/null 13.47s user 0.10s
system 99% cpu 13.580 total
This is a regression compared to 3.1.1. With hg at 3.1.1, both versions (with -f
and without -f) finish in under 15 seconds.
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