From: Avi Kivity <avi@redhat.com>
To: Floris Bos <bos@je-eigen-domein.nl>
Cc: kvm@vger.kernel.org
Subject: Re: Virtio block module slower than IDE
Date: Tue, 27 Oct 2009 11:34:57 +0200 [thread overview]
Message-ID: <4AE6BEC1.9080808@redhat.com> (raw)
In-Reply-To: <86850516b53476ca0ead0d7379149982@mx1.je-eigen-domein.nl>
On 10/27/2009 02:13 AM, Floris Bos wrote:
> Hi,
>
> I am running Proxmox 1.4 (which uses the 2.6.30.1 kvm modules) and am
> experiencing performance problems with Linux guests using the virtio_blk
> module.
> Especially with random IO it is a lot slower than IDE.
>
>
>
Try switching the host I/O scheduler to deadline. You can do that at
runtime in /sys/block/.../queue.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2009-10-27 9:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-27 0:13 Virtio block module slower than IDE Floris Bos
2009-10-27 9:34 ` Avi Kivity [this message]
2009-10-27 15:07 ` Floris Bos
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