From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
Len Brown <lenb@kernel.org>,
linux-acpi <linux-acpi@vger.kernel.org>
Subject: Re: [PATCH] ACPI: cap off P-state transition latency from buggy BIOSes
Date: Fri, 20 Mar 2009 00:50:16 -0300 [thread overview]
Message-ID: <20090320035016.GA28010@khazad-dum.debian.net> (raw)
In-Reply-To: <20090319214746.GC24898@srcf.ucam.org>
On Thu, 19 Mar 2009, Matthew Garrett wrote:
> On Thu, Mar 19, 2009 at 02:41:40PM -0700, Pallipadi, Venkatesh wrote:
> > Fix it by capping-off the transition latency to 20uS for native MSR based
> > frequency transitions.
> >
> > Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
>
> We've confirmed that this also helps on the X31.
>
> Acked-by: Matthew Garrett <mjg@redhat.com>
Any chance of sending this to -stable after it hits mainline? It is the
sort of stuff a huge number of thinkpad users will want in their kernels
ASAP...
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
next prev parent reply other threads:[~2009-03-20 3:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-19 21:41 [PATCH] ACPI: cap off P-state transition latency from buggy BIOSes Pallipadi, Venkatesh
2009-03-19 21:47 ` Matthew Garrett
2009-03-20 3:50 ` Henrique de Moraes Holschuh [this message]
2009-03-20 4:02 ` Matthew Garrett
2009-03-20 8:17 ` Ingo Molnar
2009-03-28 1:23 ` Len Brown
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