Re: kswapd craziness in 3.7

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On Tue, Dec 04, 2012 at 21:01:33 -0600,
  Bruno Wolff III <bruno@xxxxxxxx> wrote:
On Tue, Dec 04, 2012 at 16:42:10 -0500,
 Johannes Weiner <hannes@xxxxxxxxxxx> 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 am now at a bit over 2 and 1/2 days with kswapd having used 1 minute 53 seconds of CPU time.

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