Re: scheduler (sched_4bsd) questions
From: Julian Elischer (julian_at_elischer.org)
Date: 10/02/04
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Date: Sat, 02 Oct 2004 11:14:51 -0700 To: Peter Holm <peter@holm.cc>
Peter Holm wrote:
> On Fri, Oct 01, 2004 at 09:25:51PM +0200, Peter Holm wrote:
>
>>>>For once I'm the bearer of good news. The switch_patch_v2 + the
>>>>sched_4bsd patch ran the tests for more than one hour without
>>>>any freeze. The sched_4bsd alone did not stop the freezes. I'm
>>>>now testing the switch_patch_v2 alone and it's looking good for
>>>>55+ minutes of testing.
>>>
>>>Great !
>>>I guess I should roll a cleaned up cumulative patch soon.
>>>
>>> Stephan
>>
>>I have now been running the stress test for more than 3½ hours, without
>>any freezes. I have included the two of your changes I have been using.
>>
>>- Peter
>
>
> After more testing, I'm sad to report that the freeze is still there.
> The patch has however decreased the number of freezes dramatically:
>
> During 14 hours of testing 3 separate freezes has been seen:
>
> 24 Giant held for more than 60 sec by td 0xc244e900, pid 27683
> 31 Giant held for more than 60 sec by td 0xc1b7b600, pid 12098
> 79 Giant held for more than 60 sec by td 0xc25f3180, pid 75531
oh yeah.... output of show locks too.
>
> - Peter
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