Re: kswapd0: excessive CPU usage

Jiri Slaby
2012-11-02T10:53:42Z

On 11/02/2012 11:44 AM, Zdenek Kabelac wrote:
>>> Yes, applying this instead of the revert fixes the issue as well.
>
> I've applied this patch on 3.7.0-rc3 kernel - and I still see excessive
> CPU usage - mainly after suspend/resume
>
> Here is just simple kswapd backtrace from running kernel:

Yup, this is what we were seeing with the former patch only too. Try to
apply the other one too:
https://patchwork.kernel.org/patch/1673231/

For me I would say, it is fixed by the two patches now. I won't be able
to report later, since I'm leaving to a conference tomorrow.

> kswapd0 R running task 0 30 2 0x00000000
...
> [<ffffffff81141e2a>] shrink_slab+0xba/0x510

thanks,
--
js
suse labs