From: Alexandre Julliard <julliard@winehq.org>
Date: Sun, 23 Jul 2006 17:51:04 +0000 (+0200)
Subject: show-branch: Fix another performance problem.
X-Git-Tag: v1.4.2-rc2~15
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/f8263c5339fd70ee00b60c37b715c7e46b30a3bf?ds=inline;hp=f8263c5339fd70ee00b60c37b715c7e46b30a3bf

show-branch: Fix another performance problem.

When naming commits, stop walking the parent chain as soon as we find
a commit that already has a name. The parent chain of that commit will
be walked later on in any case (or may even have been walked already).
This avoids O(n^2) behavior; on a tree where show-branch displays 6800
commits, the total run time drops from 77 seconds to 5 seconds.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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