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From: Dominik Brodowski <linux@brodo.de>
To: "Moore, Robert" <robert.moore@intel.com>
Cc: "Therien, Guy" <guy.therien@intel.com>,
	"Grover, Andrew" <andrew.grover@intel.com>,
	cpufreq@www.linux.org.uk, "Nakajima,
	Jun" <jun.nakajima@intel.com>, linux-acpi <linux-acpi@intel.com>,
	"Mallick, Asit K" <asit.k.mallick@intel.com>,
	"Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] 3/3 Dynamic cpufreq governor and updates to ACPI P-statedriver
Date: Tue, 21 Oct 2003 22:01:14 +0200	[thread overview]
Message-ID: <20031021200114.GB26971@brodo.de> (raw)
In-Reply-To: <CFF522B18982EA4481D3A3E23B83141C24B4BC@orsmsx407.jf.intel.com>

On Tue, Oct 21, 2003 at 10:12:14AM -0700, Moore, Robert wrote:
> 
> This is exactly what I was looking at doing, looks like most of the work
> is done.  I have some concerns about the actual algorithm used for
> changing the CPU frequency (20%/80%), but this of course can be tuned.

Well, so write a different governor, and feel free to use Venkatesh's code
as a base [it's GPLed, after all...]. I prefer to have several different 
governors available, so that different users with different needs
can use different "policies".

> I suspect that CPUs that have the capability of changing frequency
> themselves would not use this particular governor.

They can't -- If the driver for Transmeta CPUs is loaded, 
cpufreq governors cannot be started.
 
> You may want to make the sampling rate configurable at run time.

Such a "tweaking by sysfs" patch can be added later.

	Dominik

      reply	other threads:[~2003-10-21 20:01 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-21 17:12 [PATCH] 3/3 Dynamic cpufreq governor and updates to ACPI P-statedriver Moore, Robert
2003-10-21 20:01 ` Dominik Brodowski [this message]

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