linux-kernel - Re: Page Faults slower in 2.6.25-rc9 than 2.6.23

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Message-ID: <d43160c70804290708t51bdc100j9cc42a8da512aee7@mail.gmail.com>
Date:	Tue, 29 Apr 2008 10:08:18 -0400
From:	"Ross Biro" <rossb@...gle.com>
To:	"Hugh Dickins" <hugh@...itas.com>
Cc:	linux-mm@...ck.org, lkml <linux-kernel@...r.kernel.org>
Subject: Re: Page Faults slower in 2.6.25-rc9 than 2.6.23

On Tue, Apr 29, 2008 at 9:57 AM, Hugh Dickins <hugh@...itas.com> wrote:
>  Do you have CONFIG_CGROUP_MEM_RES_CTLR=y in 2.6.25?
>  That added about 20% to my lmbench "Page Fault" tests (with
>  adverse effect on several others e.g. the fork, exec, sh group).

I don't have config cgroups set.  I do have fake numa on, but I'm
pretty sure it was on for 2.6.23 as well.

# CONFIG_CGROUPS is not set
CONFIG_GROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_RT_GROUP_SCHED is not set
CONFIG_USER_SCHED=y
# CONFIG_CGROUP_SCHED is not set
C

    Ross
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