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SubjectRe: kswapd craziness in 3.7
On Tue, Dec 04, 2012 at 16:42:10 -0500,
Johannes Weiner <hannes@cmpxchg.org> wrote:
> kernel-3.7.0-0.rc7.git1.2.van.main.knurd.kswap.4.fc18.i686
>and
> kernel-3.7.0-0.rc7.git1.2.van.main.knurd.kswap.4.fc18.x86_64
>for over 24hours with no evidence of problems with kswapd"
>
>Now waiting for results from Jiri, Zdenek and Bruno...

I have been running 3.7.0-0.rc7.git1.2.van.main.knurd.kswap.4.fc18.i686.PAE
a bit over 23 hours and kswapd has accumalated one minute 8 seconds of
CPU time. I did several yum operations during that time and didn't see
kswapd spike to 90+% CPU usage as I had seen in the past. With some kernels
I wasn't reliably triggering the kswapd issue, so it may not be long enough
to know for sure that the problem is fixed.

I also should note that when I tried 3.7.0-0.rc7.git3.2.fc19.i686.PAE I
did see problems with kswapd hitting 90+% usage of a CPU.


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