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Re: [Xen-users] AMD SR5690/SP5100 + 2.6.31 + pv_ops = bad domU performa

To: Christian Zoffoli <czoffoli@xxxxxxxxxxx>
Subject: Re: [Xen-users] AMD SR5690/SP5100 + 2.6.31 + pv_ops = bad domU performances
From: "Fajar A. Nugraha" <fajar@xxxxxxxxx>
Date: Fri, 2 Oct 2009 05:33:06 +0700
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On Fri, Oct 2, 2009 at 5:17 AM, Christian Zoffoli <czoffoli@xxxxxxxxxxx> wrote:
> The dom0 is based on 2.6.31 (jeremy tree) and the domU is a debian lenny.
> For example testing dom0 net with iperf I can see ~950 Mbit/s but
> testing the domU I can see only 197 kbits/s.
> Testing disk perfomance I've ~ 70MB/s on dom0 and ~22 MB/s on domU.
> Do you have any suggestion?

See jeremy's latest reply on this list. They're still narrowing down
the problem.

As a work around, you should be able to use old-style kernel-xen on
dom0. I'm using RHEL5's kernel-xen and domU performance (both disk and
network) is great.


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