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

Balbir Singh
2009-08-28T04:29:22Z

* 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.

--
Balbir