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From: "Prakash K. Cheemplavam" <PrakashKC@gmx.de>
To: linux-kernel@vger.kernel.org
Cc: akpm@osdl.org, torvalds@osdl.org, len.brown@intel.com
Subject: ACPI PM Timer vs. C1 halt issue
Date: Tue, 09 Mar 2004 22:35:51 +0100	[thread overview]
Message-ID: <404E38B7.5080008@gmx.de> (raw)

Hi,

I found out what causes higher idle temps when using mm-sources and 
2.6.4-rc vanilla sources: If I use PM Timer as timesource, it seems the 
C1 halt isn't properly called, at least CPU disconnect doesn't seem to 
work, thus leaving my CPU as hot as without disconnect.

using tsc timesource: idle temps of about 45-47°C
using pm timer: 52-53°C idle temps

Is this a bug or a feature?

I have nforce2 hardware. Tell me if you need anything else.

Prakash

             reply	other threads:[~2004-03-09 21:35 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-09 21:35 Prakash K. Cheemplavam [this message]
2004-03-09 22:11 ` ACPI PM Timer vs. C1 halt issue john stultz
2004-03-09 22:45   ` Prakash K. Cheemplavam
2004-03-10 21:49     ` john stultz
2004-03-10 22:11       ` Len Brown
2004-03-10 22:48         ` Prakash K. Cheemplavam
2004-03-11  0:15           ` Thomas Schlichter
2004-03-11  8:47             ` Prakash K. Cheemplavam
2004-03-11 13:46               ` Thomas Schlichter
2004-03-11 14:23                 ` Prakash K. Cheemplavam
2004-03-10 22:53         ` Prakash K. Cheemplavam
2004-03-11 18:14         ` Prakash K. Cheemplavam

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