Re: git-diff-tree -M performance regression in 'next'

From: Junio C Hamano <junkio@cox.net>
Date: Mar 12, 2006, 19:34 UTC
Message-ID: <7vk6azcv9y.fsf@assigned-by-dhcp.cox.net>
In-Reply-To: <Pine.LNX.4.64.0603120858230.3618@g5.osdl.org>

Linus Torvalds <torvalds@osdl.org> writes:

Show 9 quoted lines

> On Sun, 12 Mar 2006, Junio C Hamano wrote:
>> 
>> master  : 130m virtual, 40m resident, (0major+12510minor)
>>           66.06user 0.07system 1:10.95elapsed
>> "next"  : 150m virtual, 65m resident, (0major+49858minor)
>>           51.41user 0.45system 0.57.55elapsed
>
> Any way to fix that "4 times as many page misses, and 70% bigger rss?" 
> thing? It looks like you're not very careful about your memory use.

I started from "80 times as many page misses and 5 times bigger rss", shrunk it down to the above after doing more careful memory use, running out of ideas to shrink it more, and pushed it out. So...