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Re: [Xen-devel] Poor NIC performance on domUs / Crashing

from [Jeremy Fitzhardinge] [Permanent Link][Original]
To: Ryan Holt <ryan@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] Poor NIC performance on domUs / Crashing
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Sun, 13 Dec 2009 11:11:09 -0800
Cc: Andrew Lyon <andrew.lyon@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On 12/12/09 09:10, Ryan Holt wrote:

I installed xen-sources-2.6.18-r12 as my dom0 and the issue seems to
have gone away. Will do some more thorough throughput testing on it
later. I'm using gentoo-sources-2.6.31-r6 for the domU.

Question; what's the typical type of performance decrease I should
expect to the domU over the network? Getting around 12MB/sec to the
dom0, and anywhere from 5-10MB/sec to the domU; that typical/expected?
That sounds reasonable to me, but I haven't done much performance-oriented testing so I don't know whether that's really expected. There are a lot of variables in there.. 

    J

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