From: Arjan van de Ven <arjan@infradead.org>
To: "Shi, Alex" <alex.shi@intel.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: is it a timer bug?
Date: Mon, 15 Dec 2008 09:31:15 +0100 [thread overview]
Message-ID: <20081215093115.44b4aa0c@infradead.org> (raw)
In-Reply-To: <F7C8A4D3A9905B45A80E4C194793FA6501C51D1352@PDSMSX501.ccr.corp.intel.com>
On Mon, 15 Dec 2008 16:19:37 +0800
"Shi, Alex" <alex.shi@intel.com> wrote:
> OK, but my machine is not a production machine.
> A, 2.6.28-rc8 with tickles and highres
> PowerTOP version 1.9 (C) 2007 Intel Corporation
>
> Cn Avg residency P-states (frequencies)
> C0 (cpu running) (65.1%)
> C1 0.0ms ( 0.0%)
> C2 105.8ms (34.9%)
>
>
>
> Wakeups-from-idle per second : 3.8 interval: 5.0s
> no ACPI power usage estimate available
> B, 2.6.28-rc8 with tickless only
> PowerTOP version 1.9 (C) 2007 Intel Corporation
>
> Cn Avg residency P-states (frequencies)
> C0 (cpu running) (14.0%)
> C1 0.0ms ( 0.0%)
> C2 3.4ms (86.0%)
>
>
>
> Wakeups-from-idle per second : 255.6 interval: 5.0s
> no ACPI power usage estimate available
>
> Top causes for wakeups:
> 87.9% (267.6) <interrupt> : extra timer interrupt
unfortunately you don't give more than the first line ;-(
--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
prev parent reply other threads:[~2008-12-15 8:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-15 7:07 Shi, Alex
2008-12-15 8:09 ` Arjan van de Ven
2008-12-15 8:19 ` Shi, Alex
2008-12-15 8:31 ` Arjan van de Ven [this message]
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