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Subject: Re: dynamic-hz
From: Lee Revell <rlrevell@joe-job.com>
To: Con Kolivas <kernel@kolivas.org>
Cc: Andrea Arcangeli <andrea@suse.de>, Pavel Machek <pavel@suse.cz>,
       linux-kernel@vger.kernel.org
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Date: Tue, 14 Dec 2004 17:28:32 -0500
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On Mon, 2004-12-13 at 10:36 +1100, Con Kolivas wrote:
> The performance benefit, if any, is often lost in noise during 
> benchmarks and when there, is less than 1%.

I have measured 2.1-2.3% residency for the timer ISR on my 600Mhz VIA
C3.  And this is a desktop - you have many many embedded systems that
are slower.  For these systems the difference is very real.

I would certainly expect it to be lost in the noise on a 2Ghz machine.

Lee