Re: [PATCH] Determine latency from ACPI

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On Tue, 3 Feb 2009 10:37:05 +0100 Thomas Renninger <trenn@xxxxxxx> wrote:

> On Tuesday 03 February 2009 00:04:15 Andrew Morton wrote:
> > On Tue, 27 Jan 2009 14:03:47 -0600
> >
> > Mark Langsdorf <mark.langsdorf@xxxxxxx> wrote:
> > > Subject: [PATCH] Determine latency from ACPI
> >
> > Nobody who reads this title will have a clue which subsystem the patch
> > affects.  Please always create patch titles of the form:
> >
> > 	subsystem-identifer: what-i-changed
> >
> > > At this time, the PowerNow! driver for K8 uses an experimentally
> > > derived formula to calculate transition latency.  The value it
> > > provides is orders of magnitude too large on modern systems.
> > > This patch replaces the formula with ACPI _PSS latency values
> > > for more accuracy and better performance.
> > >
> > > I've tested it on two 2nd generation Opteron systems, a 3rd
> > > generation Operton system, and a Turion X2 without seeing any
> > > stability problems.
> >
> > There are a tremendous number of changes to this file in linux-next.
> > It's easy to make the patch apply, but my confidence that the result
> > will actually work is insufficiently high.
> I sent a patch set, this one included to Dave some days ago.
> These were based on his latest cpufreq tree and should have latest
> changes adjusted.
> Unfortunately without getting a response yet (I messed up the cpufreq
> mail list address and bombed him down sending the series three times
> with guilt --patchbomb, so this could have ended in the trash folder :( ).
> Shall I resend :) ?

When in doubt, resend.   Adding more cc's helps ;)
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