Message-ID: <1338868135.7356.5.camel@marge.simpson.net>
Subject: Re: [PATCH] cpuidle: menu: use nr_running instead of cpuload for
 calculating perf mult
From: Mike Galbraith <efault@gmx.de>
To: Arjan van de Ven <arjan@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Vladimir Davydov <vdavydov@parallels.com>, Ingo Molnar <mingo@elte.hu>,
        Len Brown <lenb@kernel.org>, Andrew Morton <akpm@linux-foundation.org>,
        linux-kernel@vger.kernel.org
Date: Tue, 05 Jun 2012 05:48:55 +0200
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On Mon, 2012-06-04 at 08:39 -0700, Arjan van de Ven wrote:

> if there is a lot of idle, load can be low or high; load is more than
> just cpu usage. it includes waiting for resources and mutexes etc.

05:40:42 up 39 min, 20 users,  load average: 0.63, 0.53, 0.42
root     pts/11    05:03    5:05   6:16   0.00s /bin/sh /root/bin/tbench.sh 1 400

Like scheduling something cross core that is close to being synchronous.

-Mike

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