From owner-freebsd-stable@FreeBSD.ORG  Wed May 25 21:04:41 2005
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Date: Wed, 25 May 2005 16:04:40 -0500
From: Stephen Montgomery-Smith <stephen@math.missouri.edu>
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To: Mike Tancsa <mike@sentex.net>
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Cc: freebsd-stable@freebsd.org
Subject: Re: releng 5 panic (again)
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Mike Tancsa wrote:
> At 04:03 PM 25/05/2005, Stephen Montgomery-Smith wrote:
> 
>> I will try any reasonable test you guys have for me.  Right now I am 
>> switching off HTT to see if that is the issue.  This is a dual Xeon 
>> system.
> 
> 
> The SCHED_4BSD doesnt do anything with HTT and in fact might hurt 
> performance. If you are using ULE, there are several known bugs and its 
> not recommended that you use it.  So in short, turn off HTT in your BIOS 
> on RELENG_5.
> 

I am using the 4BSD scheduler, but I am really seeing some advantage 
with it.  When it is switched off, multiply running programs really do 
seem to run a little slower.

But I'll switch off HTT for now.

Thanks, Stephen