Re: [RFC][PATCH 0/5] memcg: reduce lock conetion

KAMEZAWA Hiroyuki
2009-08-28T04:35:49Z

On Fri, 28 Aug 2009 09:58:36 +0530
Balbir Singh <balbir@linux.vnet.ibm.com> wrote:

> * KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> [2009-08-28 13:20:15]:
>
> > Hi,
> >
> > Recently, memcg's res_counter->lock contention on big server is reported and
> > Balbir wrote a workaround for root memcg.
> > It's good but we need some fix for children, too.
> >
> > This set is for reducing lock conetion of memcg's children cgroup based on mmotm-Aug27.
> >
> > I'm sorry I have only 8cpu machine and can't reproduce very troublesome lock conention.
> > Here is lock_stat of make -j 12 on my 8cpu box, befre-after this patch series.
> >
>
> Kamezawa-San,
>
> I've been unable to get mmotm to boot (24th August, I'll try the 27th
> Aug and debug). Once that is done, I'll test on a large machine.
>
yep, take it easy. I'm now very active in this weekend, anyway.

BTW, have you tried this ?

http://marc.info/?l=linux-kernel&m=125136796932491&w=2

Thanks,
-Kame