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Re: [Xen-users] DomU slower with smp?

To: Luke S Crawford <lsc@xxxxxxxxx>
Subject: Re: [Xen-users] DomU slower with smp?
From: Nick Anderson <nick@xxxxxxxxxxxx>
Date: Thu, 15 May 2008 19:45:37 -0500
Cc: Janusz Ulanowski <janul666@xxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx
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Luke S Crawford wrote:
"Janusz Ulanowski" <janul666@xxxxxxxxx> writes:

I just made simple peformance test with iozone tool on xen 3.2.1.
It seems DomU  is much slower if using more than one cpu.
Its a dual socket quad core amd. So I have 8 cores. cpus for dom0 is set to 0 and according to xend-config.sxp that will give dom0 access to all cpus. I havent adjusted any weighting so im not sure what would be stepping on it. The only thing running during the test was that one domU. and the domU was idle when running the test on dom0.

Nick Anderson <nick@xxxxxxxxxxxx>

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