lkml.org 
[lkml]   [2009]   [Oct]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC]cfq-iosched: improve hw_tag detection
On Mon, Oct 26 2009, Shaohua Li wrote:
> If active queue hasn't enough requests and idle window opens, cfq will not
> dispatch sufficient requests to hardware. In such situation, current code
> will zero hw_tag. But this is because cfq doesn't dispatch enough requests
> instead of hardware queue doesn't work. Don't zero hw_tag in such case.

Thanks, that looks like a good fix. Curious, is this fixing some
regression at your end?

--
Jens Axboe



\
 
 \ /
  Last update: 2009-10-26 12:39    [W:0.048 / U:0.288 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site