[Intel-gfx] [PATCH 4/4] cpuidle: Hack iowait weighting to avoid C-state reduction for graphics.

[Eric Anholt]

On Tue, 02 Nov 2010 20:20:14 +0800, ykzhao <yakui.zhao at intel.com> wrote:
> On Tue, 2010-11-02 at 04:23 +0800, Eric Anholt wrote:
> > Improves nexuiz performance by about 1% on my system.
> 
> CC: Arjan and linux-acpi mailing list.
> 
> It seems that the selection of C-state will become very sensitive to IO
> wait after the multi factor is changed from 10 to 1000.
> Maybe only one IO/wait will bring that the system can't enter the deep
> C-state.

Note the original message that said "This patch series is a hack, if it
helps anyone I'll rewrite it to do the right thing".
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 197 bytes
Desc: not available
URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20101102/5225a785/attachment.sig>