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authorNicolas Pitre <nico@cam.org>2006-12-19 10:53:08 -0500
committerJunio C Hamano <junkio@cox.net>2006-12-20 00:42:10 -0800
commit6d2fa7f1b489c65e677c18eda5c144dbc5d614ab (patch)
tree70a79d44228403c478ed8db0f00c147726331c60 /builtin-mailinfo.c
parent313ce8cee665447e4476d7e8985b270346a8e5a1 (diff)
downloadgit-6d2fa7f1b489c65e677c18eda5c144dbc5d614ab.tar.gz
git-6d2fa7f1b489c65e677c18eda5c144dbc5d614ab.tar.xz
index-pack usage of mmap() is unacceptably slower on many OSes other than Linux
It was reported by Randal L. Schwartz <merlyn@stonehenge.com> that indexing the Linux repository ~150MB pack takes about an hour on OS x while it's a minute on Linux. It seems that the OS X mmap() implementation is more than 2 orders of magnitude slower than the Linux one. Linus proposed a patch replacing mmap() with pread() bringing index-pack performance on OS X in line with the Linux one. The performances on Linux also improved by a small margin. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
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