linux-kernel - Re: [PATCH] cpuidle: menu governor: reduce latency on exit

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Message-Id: <20090723150517.fbbd03dc.akpm@linux-foundation.org>
Date:	Thu, 23 Jul 2009 15:05:17 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Corrado Zoccolo <czoccolo@...il.com>
Cc:	venkatesh.pallipadi@...el.com, abelay@...ell.com,
	linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cpuidle: menu governor: reduce latency on exit

On Sun, 19 Jul 2009 16:59:46 +0200
Corrado Zoccolo <czoccolo@...il.com> wrote:

> This patch moves the state residency accounting and statistics
> computation off the hot exit path.
> On exit, the need to recompute statistics is recorded, and new
> statistics will be computed when menu_select is called again.
> 

Was there any observed and/or measured effect as a result of this patch?

If so, please send a description of that effect, thanks.

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