From mboxrd@z Thu Jan  1 00:00:00 1970
From: Avi Kivity <avi@redhat.com>
Subject: Re: Virtio block module slower than IDE
Date: Tue, 27 Oct 2009 11:34:57 +0200
Message-ID: <4AE6BEC1.9080808@redhat.com>
References: <86850516b53476ca0ead0d7379149982@mx1.je-eigen-domein.nl>
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To: Floris Bos <bos@je-eigen-domein.nl>
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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