From: Jens Axboe <jens.axboe@oracle.com>
To: "Fernando Luis Vázquez Cao" <fernando@oss.ntt.co.jp>
Cc: rusty@rustcorp.com.au, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] virtio_blk: use noop elevator by default
Date: Tue, 26 Aug 2008 16:39:01 +0200 [thread overview]
Message-ID: <20080826143900.GM20055@kernel.dk> (raw)
In-Reply-To: <1219754894.7235.44.camel@sebastian.kern.oss.ntt.co.jp>
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
next prev parent reply other threads:[~2008-08-26 14:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-26 12:48 [PATCH] virtio_blk: use noop elevator by default Fernando Luis Vázquez Cao
2008-08-26 14:39 ` Jens Axboe [this message]
2008-08-27 5:14 ` Fernando Luis Vázquez Cao
2008-10-27 9:44 ` [PATCH 1/3] block: add queue flag for paravirt frontend drivers Fernando Luis Vázquez Cao
2008-10-27 12:56 ` Jens Axboe
2008-11-04 23:23 ` Jeremy Fitzhardinge
2008-11-05 9:20 ` Jens Axboe
2008-11-05 10:49 ` Fernando Luis Vázquez Cao
2008-10-27 9:45 ` [PATCH 2/3] virtio_blk: set queue paravirt flag Fernando Luis Vázquez Cao
2008-10-27 9:45 ` [PATCH 3/3] xen-blkfront: " Fernando Luis Vázquez Cao
2008-10-27 9:43 ` [PATCH] virtio_blk: use noop elevator by default Fernando Luis Vázquez Cao
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