Bug#330402: mention cpu-freq and ACPI throttling are different

[Sven Luther <sven.luther@wanadoo.fr>]

On Wed, Sep 28, 2005 at 11:03:01AM +0900, Horms wrote:
> On Wed, Sep 28, 2005 at 05:43:45AM +0800, Dan Jacobson wrote:
> > Package: linux-doc-2.6.12
> > Version: 2.6.12-2
> > Severity: wishlist
> > Tags: upstream
> > 
> > Gentlemen, Documentation/cpu-freq/user-guide.txt.gz,
> > and the relevant Documentation/*/*/*ACPI*/ document (that I cannot
> > find), should both emphasize that
> > /proc/acpi/processor/CPU/throttling
> > and
> > /sys/devices/system/cpu/cpu0/cpufreq/stats/
> > while appearing to describe the same thing, the e.g., same eight
> > steps, etc., are apparently independent of each other.
> > 
> > One finds that a process that took 1 second will take 7 seconds when
> > choosing the lowest cpufreq step. Choosing the lowest throttling step
> > on the other hand causes that process to take 14 seconds!
> > And combining both cpufreq and throttling causes it to take much
> > longer. All these phenomena should be explained.
> 
> Hi Dan,
> 
> Could you please draft an amendment to the documents in question
> and I will pass it on to upstream for consideration.

Or you could mail it to LKML yourself.

Friendly,

Sven Luther