lkml.org 
[lkml]   [2012]   [Mar]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/3] cpuidle: Add a debugfs entry to disable specific C state for debug purpose.
On Mon, Mar 12, 2012 at 05:21:33PM +0800, ShuoX Liu wrote:

> In addition, C state might have much impact on performance tuning,
> as it takes
> much time to enter/exit C states, which might delay interrupt
> processing. With
> the new debug option, developers could check if a deep C state could impact
> performance and how much impact it could cause.

Would anyone doing performance tuning not be using the cpu_dma_latency
interface?

--
Matthew Garrett | mjg59@srcf.ucam.org


\
 
 \ /
  Last update: 2012-03-12 21:49    [W:0.051 / U:1.732 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site