linux-kernel - Re: [PATCH] virtio_blk: use noop elevator by default

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Date:	Tue, 26 Aug 2008 16:39:01 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Fernando Luis Vázquez Cao 
	<fernando@....ntt.co.jp>
Cc:	rusty@...tcorp.com.au, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] virtio_blk: use noop elevator by default

On Tue, Aug 26 2008, Fernando Luis Vázquez Cao wrote:
> Hi Rusty,
> 
> Would it make sense to use noop by default? After all we do not know
> what is behind the backend driver and the hypervisor is likely to do its
> own scheduling anyway. I guess this is the reason the Xen guys took this
> approach.
> 
> What do you think about the patch below?

I plan to include some variant of disk profiling for 2.6.28 which will
let eg CFQ turn off idling for such device types, I think that is a
better solution.

-- 
Jens Axboe

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