Re: CPU throttling??

From: Dave Jones (davej@codemonkey.org.uk)
Date: Mon Feb 03 2003 - 14:02:05 EST

Next message: H. Peter Anvin: "Re: futimes()?"
Previous message: Valdis.Kletnieks@vt.edu: "Re: CPU throttling??"
In reply to: Valdis.Kletnieks@vt.edu: "Re: CPU throttling??"
Next in thread: Martin Hermanowski: "Re: CPU throttling??"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

On Mon, Feb 03, 2003 at 01:57:17PM -0500, Valdis.Kletnieks@vt.edu wrote:

> It's conceivable that a CPU halted at 1.2Gz takes less power than one
> at 1.6Gz - anybody have any actual data on this? Alternately phrased,
> does CPU throttling save power over and above what the halt does?

Given that most decent implementations scale voltage as well as
frequency, yes, a lower speed will save more power.

Dave

-- 
| Dave Jones.        http://www.codemonkey.org.uk
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Next message: H. Peter Anvin: "Re: futimes()?"
Previous message: Valdis.Kletnieks@vt.edu: "Re: CPU throttling??"
In reply to: Valdis.Kletnieks@vt.edu: "Re: CPU throttling??"
Next in thread: Martin Hermanowski: "Re: CPU throttling??"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Fri Feb 07 2003 - 22:00:12 EST