ler at lerctr.org
Mon Oct 12 01:43:30 UTC 2009
On Sun, October 11, 2009 6:20 pm, Attilio Rao wrote:
> 2009/10/12 Larry Rosenman <ler at lerctr.org>:
>> On Sun, October 11, 2009 6:11 pm, Attilio Rao wrote:
>>> 2009/10/12 Larry Rosenman <ler at lerctr.org>:
>>>> Ok, running RELENG_8 from Friday (10/9/2009).
>>>> If I have 4 Folding-at-home processes running (they nice themselves)
>>>> system is slow as a dog.
>>>> If I stop them, it's speedy.
>>>> This is running SCHED_ULE
>>>> is this expected?
>>>> What can I do to help?
>>> Can you please produce the schedgraph output for this workload?
>>> Do you know how to setup it?
>> I'm not familiar with this. What do I need to do?
> - Recompile your kernel with the following options:
> - Run the buggy workload
> - When the slowness has been experienced a bit (a reasonable timeframe
> is within 10/20 secs) do: sysctl debug.ktr.mask=0
> - do: ktrdump -ct > ktr.out
> - send here this file along with the number and frequency of your CPUs
Sent under separate cover direct to Attilio.
> Peace can only be achieved by understanding - A. Einstein
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Larry Rosenman http://www.lerctr.org/~ler
Phone: +1 512-248-2683 E-Mail: ler at lerctr.org
US Mail: 430 Valona Loop, Round Rock, TX 78681-3893
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