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SubjectRe: Page Faults slower in 2.6.25-rc9 than 2.6.23
On Tue, Apr 29, 2008 at 9:57 AM, Hugh Dickins <hugh@veritas.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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