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Date:      Wed, 06 Apr 2005 11:37:35 -0700
From:      Nate Lawson <nate@root.org>
To:        Pierre-Luc Drouin <pldrouin@pldrouin.net>
Cc:        Matthias Buelow <mkb@mkbuelow.net>
Subject:   Re: 5.4-prerelease - hanging under load
Message-ID:  <42542C6F.6010508@root.org>
In-Reply-To: <425425BC.6080006@pldrouin.net>
References:  <200504040609.j3469g7b001419@drjekyll.mkbuelow.net> <425425BC.6080006@pldrouin.net>

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Pierre-Luc Drouin wrote:
> Matthias Buelow wrote:
> 
>> Nate Lawson <nate@root.org> writes:
>>
>>  
>>
>>> sysctl dev.cpu and look at the current frequency setting.  If low, 
>>> then your system is affected and will be fixed soon when I mfc.  If 
>>> not, perhaps you have an interrupt storm (vmstat -i)
>>>   
>>
>>
>> Just for the record. I ran vmstat -i in a loop while untarring the
>> thunderbird source (causing degraded interactive responsiveness, as
>> reported in an earlier mail), and couldn't see any noticable increase in
>> interrupt rate.
>>
>> mkb.
>>
>>  
>>
> I've noticed that the idle process is using sometimes as much as 60% of 
> my CPU. Could it be a relation between that and the lag we have with 5.4?

That is different.  sysctl hw.acpi.cpu.cx_lowest="C1" to see if that 
works around it.

-- 
Nate



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