Re: [PATCH 0/3] fix stale swap cache account leak in memcg v7

[KAMEZAWA Hiroyuki]

On Tue, 12 May 2009 15:21:58 +0530
Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> wrote:

> > The patch set includes followng
> >  [1/3] add mem_cgroup_is_activated() function. which tell us memcg is _really_ used.
> >  [2/3] fix swap cache handling race by avoidng readahead.
> >  [3/3] fix swap cache handling race by check swapcount again.
> > 
> > Result is good under my test.
> 
> What was the result (performance data impact) of disabling swap
> readahead? Otherwise, this looks the most reasonable set of patches
> for this problem.
> 
I'll measure some and report it in the next post.


Thanks,
-Kame

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