From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Mon, 16 Jun 2008 11:13:37 +0200
From: Philippe Gerum <rpm@xenomai.org>
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Subject: Re: [Xenomai-help] High latencies on Core2Duo
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To: Sebastian Smolorz <smolorz@domain.hid>
Cc: xenomai@xenomai.org

Sebastian Smolorz wrote:
> Philippe Gerum wrote:
>> Could you try booting with idle=poll just to make sure that we don't
>> get trapped
>> into long wakeup latency from some idling instruction? We explicitly
>> avoid mwait
>> unless forced to use it by a bootparam, but maybe something goes wrong
>> with the
>> default idle code as well.
> 
> Attached is a new trace, I've booted with idle=poll. The latency spots
> are still there. Maybe Gilles is right and the SMI disabling code needs
> an adaption to new chipsets.
> 

Looking at the trace, Gilles is very likely right indeed.

-- 
Philippe.