Re: Page Faults slower in 2.6.25-rc9 than 2.6.23

From: Ross Biro
Date: Tue Apr 29 2008 - 10:08:45 EST


On Tue, Apr 29, 2008 at 9:57 AM, Hugh Dickins <hugh@xxxxxxxxxxx> 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/