lkml.org 
[lkml]   [2011]   [Nov]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] fix mem_cgroup_split_huge_fixup to work efficiently.
On Mon, 21 Nov 2011 16:30:11 +0530
Balbir Singh <bsingharora@gmail.com> wrote:

> On Thu, Nov 17, 2011 at 7:03 AM, KAMEZAWA Hiroyuki
> <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> >
> > I'll send this again when mm is shipped.
> > I sometimes see mem_cgroup_split_huge_fixup() in perf report and noticed
> > it's very slow. This fixes it. Any comments are welcome.
> >
>
> How do you see this - what tests?
>
Sometimes. By applications calling fork() or mremap(), mprotect(), which
will cause split_huge_page().
But not 100% reporoducable, yet.

Thanks,
-Kame



\
 
 \ /
  Last update: 2011-11-22 01:39    [W:0.075 / U:0.580 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site