lkml.org 
[lkml]   [2006]   [Jul]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: CFQ will be the new default IO scheduler - why?


On Mon, 24 Jul 2006, Matthias Andree wrote:

> On Sun, 23 Jul 2006, Paa Paa wrote:
>
>> The default IO scheduler in 2.6.18 will be CFQ (Complete Fair Queuing)
>> instead of AS (Anticipatory Scheduler) as described here:
>> http://wiki.kernelnewbies.org/Linux_2_6_18. I tried to find (here, at lkml)
>> the discussion about this change with no luck.
>
> That wiki document nicely shows the advantage of the scheduler, namely
> that you have "ionice", which isn't possible for AS or Deadline
> Schedulers - this allows the operating system to run processes like
> updatedb with "nice I/O", meaning these hold when you're doing other
> I/O.
>
> --
> Matthias Andree
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>

Should there be a default scheduler per filesystem? As some filesystems
may perform better/worse with one over another?

Justin.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-07-24 14:45    [from the cache]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and my Meterkast|Read the blog