lkml.org 
[lkml]   [2009]   [Jul]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v3 00/18] periodic write-back timer optimization
From
Date
Artem Bityutskiy <Artem.Bityutskiy@nokia.com> writes:

>
> The patches attempt to optimize the periodic write-back and stop it when
> there are no dirty data. IOW, we do not want the thread to wake up every
> 5 seconds (by default), find there is nothing to do, and so on.

Is waking up every 5 seconds really a problem?

The normal rule of thumb is iirc that longer sleep times than a few hundred
ms give dimishing returns in terms of power saving.

A simple way might be simple to batch the timer better with other timers.

-Andi


--
ak@linux.intel.com -- Speaking for myself only.


\
 
 \ /
  Last update: 2009-07-09 14:41    [W:0.625 / U:0.056 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site