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Date:	Mon, 24 Jul 2006 10:29:16 +0200
From:	Matthias Andree <>
To:	Paa Paa <>
Subject: Re: CFQ will be the new default IO scheduler - why?

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: 
> 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

Matthias Andree
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