linux-kernel - Re: 2.6.24-git4+ regression

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Message-Id: <1203408956.15607.20.camel@homer.simson.net>
Date:	Tue, 19 Feb 2008 09:15:56 +0100
From:	Mike Galbraith <efault@....de>
To:	vatsa@...ux.vnet.ibm.com
Cc:	Ingo Molnar <mingo@...e.hu>,
	Lukas Hejtmanek <xhejtman@....muni.cz>, mingo@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.24-git4+ regression

Bah, I notice that I poked reply.   Doesn't matter, but for interested
readers...

On Mon, 2008-02-18 at 15:31 +0100, Mike Galbraith wrote:

> > > I'll try this patch later (errands).
> > 
> > This is sched-devel with your first patch still applied.  Much evilness.
> > At first, I had much idle time, then it settled into this.
> > 
> > I'll revert your first patch and test this one alone after errands.
> > 
> > top - 10:02:34 up 4 min, 15 users,  load average: 5.09, 3.35, 1.46
> > Tasks: 220 total,   6 running, 214 sleeping,   0 stopped,   0 zombie
> > Cpu0  : 35.3%us, 64.7%sy,  0.0%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
> > Cpu1  : 35.0%us, 65.0%sy,  0.0%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
> > 
> >   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  P COMMAND
> >  5337 root      20   0  1464  360  304 R  101  0.0   1:12.16 1 chew-max
> >  5355 mikeg     20   0  1464  364  304 R   53  0.0   1:13.51 0 chew-max
> >  5341 root      20   0  1464  364  304 R   22  0.0   0:33.05 0 chew-max
> >  5352 root      20   0  1464  364  304 R   22  0.0   0:47.08 0 chew-max
> 
> Everyone moved onto CPU 1, and stuck.
> 
> top - 15:28:31 up 2 min, 15 users,  load average: 4.03, 2.10, 0.83
> Tasks: 212 total,   6 running, 206 sleeping,   0 stopped,   0 zombie
> Cpu0  :  4.0%us,  3.0%sy,  0.0%ni, 93.1%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
> Cpu1  : 41.2%us, 58.8%sy,  0.0%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
> 
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  P COMMAND
>  5419 mikeg     20   0  1464  364  304 R   33  0.0   0:14.71 1 chew-max
>  5401 root      20   0  1464  364  304 R   23  0.0   0:11.74 1 chew-max
>  5412 root      20   0  1464  364  304 R   23  0.0   0:08.93 1 chew-max
>  5402 root      20   0  1464  360  304 R   22  0.0   0:10.44 1 chew-max

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