From owner-freebsd-stable@FreeBSD.ORG  Wed Apr  6 18:37:40 2005
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 7ACCC16A4CE; Wed,  6 Apr 2005 18:37:40 +0000 (GMT)
Received: from www.cryptography.com (li-22.members.linode.com [64.5.53.22])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id A0BA443D53; Wed,  6 Apr 2005 18:37:39 +0000 (GMT)
	(envelope-from nate@root.org)
Received: from [10.0.0.34] (adsl-67-119-74-222.dsl.sntc01.pacbell.net
	[67.119.74.222])
	by www.cryptography.com (8.12.8/8.12.8) with ESMTP id j36IbaLS024983
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT);
	Wed, 6 Apr 2005 11:37:37 -0700
Message-ID: <42542C6F.6010508@root.org>
Date: Wed, 06 Apr 2005 11:37:35 -0700
From: Nate Lawson <nate@root.org>
User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206)
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: Pierre-Luc Drouin <pldrouin@pldrouin.net>
References: <200504040609.j3469g7b001419@drjekyll.mkbuelow.net>
	<425425BC.6080006@pldrouin.net>
In-Reply-To: <425425BC.6080006@pldrouin.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
cc: Greg 'groggy' Lehey <grog@freebsd.org>
cc: Christian Brueffer <chris@unixpages.org>
cc: freebsd-stable@freebsd.org
cc: Matthias Buelow <mkb@mkbuelow.net>
Subject: Re: 5.4-prerelease - hanging under load
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Production branch of FreeBSD source code
	<freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 06 Apr 2005 18:37:40 -0000

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