From: Dor Laor <dlaor@redhat.com>
To: Gordan Bobic <gordan@bobich.net>
Cc: kvm@vger.kernel.org
Subject: Re: virtio disk slower than IDE?
Date: Sun, 15 Nov 2009 11:51:20 +0200 [thread overview]
Message-ID: <4AFFCF18.1080509@redhat.com> (raw)
In-Reply-To: <4AFEBD59.2090002@bobich.net>
On 11/14/2009 04:23 PM, Gordan Bobic wrote:
> I just tried paravirtualized virtio block devices, and my tests show
> that they are approximately 30% slower than emulated IDE devices. I'm
> guessing this isn't normal. Is this a known issue or am I likely to have
> mosconfigured something? I'm using 64-bit RHEL/CentOS 5 (both host and
> guest).
Please try to change the io scheduler on the host to io scheduler, it
should boost your performance back.
>
> Thanks.
>
> Gordan
> --
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next prev parent reply other threads:[~2009-11-15 9:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-14 14:23 virtio disk slower than IDE? Gordan Bobic
2009-11-15 9:51 ` Dor Laor [this message]
2009-11-15 12:00 ` Gordan Bobic
2009-11-15 13:15 ` Dor Laor
2009-11-15 22:47 ` Gordan Bobic
2009-11-16 16:40 ` john cooper
2009-11-16 18:11 ` Charles Duffy
2009-11-16 21:09 ` Dor Laor
-- strict thread matches above, loose matches on Subject: below --
2009-11-16 16:53 john cooper
2009-11-17 1:14 ` Gordan Bobic
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