linux-kernel - Re: [ANNOUNCE] DeskOpt - on fly task, i/o scheduler optimization

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Message-ID: <6bffcb0e0708311613h59430eado425c95569c21d0cf@mail.gmail.com>
Date:	Sat, 1 Sep 2007 01:13:45 +0200
From:	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>
To:	"Chris Snook" <csnook@...hat.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	"CK Mailinglist" <ck@....kolivas.org>
Subject: Re: [ANNOUNCE] DeskOpt - on fly task, i/o scheduler optimization

On 01/09/2007, Chris Snook <csnook@...hat.com> wrote:
> Michal Piotrowski wrote:
> > Hi,
> >
> > Here is something that might be useful for gamers and audio/video editors
> > http://www.stardust.webpages.pl/files/tools/deskopt/
> >
> > You can easily tune CFS/CFQ scheduler params
>
> I would think that gamers and AV editors would want to be using deadline
> (or maybe even as), not cfq.  How well does it work with other I/O
> schedulers?

Actually it does not support other i/o schedulers (early stage of
development ;).

"Linux supports io scheduling priorities and classes since 2.6.13 with
the CFQ io scheduler." (ionice man page)

So we can only tune
antic_expire  est_time  read_batch_expire  read_expire
write_batch_expire  write_expire
for anticipatory and
fifo_batch  front_merges  read_expire  write_expire  writes_starved
for deadline.

I'll have a look on it.

>
>         -- Chris
>

Regards,
Michal

-- 
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