linux-kernel - Re: [PATCH 6/7] sched: introduce get_cpu_iowait_time

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Message-ID: <4BD6001D.5090403@redhat.com>
Date:	Mon, 26 Apr 2010 17:05:33 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Arjan van de Ven <arjan@...radead.org>
CC:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	mingo@...e.hu, peterz@...radead.org, tglx@...utronix.de,
	davej@...hat.com, cpufreq@...r.kernel.org
Subject: Re: [PATCH 6/7] sched: introduce get_cpu_iowait_time_us()

On 04/18/2010 03:03 PM, Arjan van de Ven wrote:
>  From c4dd11703034f2ecbc3180603663fab14c292d7c Mon Sep 17 00:00:00 2001
> From: Arjan van de Ven<arjan@...ux.intel.com>
> Date: Sun, 18 Apr 2010 10:57:43 -0700
> Subject: [PATCH 6/7] sched: introduce get_cpu_iowait_time_us()
>
> For the ondemand cpufreq governor, it is desired that the iowait
> time is microaccounted in a similar way as idle time is.
>
> This patch introduces the infrastructure to account and expose
> this information via the get_cpu_iowait_time_us() function.
>
> Signed-off-by: Arjan van de Ven<arjan@...ux.intel.com>

Reviewed-by: Rik van Riel <riel@...hat.com>

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