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Re: [Xen-users] Disk I/O performance with GPLPV 10.0.142

from [Nathan O'Sullivan]

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To:	Ian Tobin <itobin@xxxxxxxxxxxxx>
Subject:	Re: [Xen-users] Disk I/O performance with GPLPV 10.0.142
From:	Nathan O'Sullivan <nathan@xxxxxxxxxxxxxx>
Date:	Fri, 18 Dec 2009 06:44:19 +1100
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Ian Tobin wrote:

Hi James

Ive setup a windows 2003 guest and thought id do a performance test.

Nework is great, much faster.

When i run nbench and do an i/o test on the disk using a 100mb thread i get much slower performance using the GPLPV drivers than i do when not using them. Is there a setting that needs to be changed?

Thanks

Ian

The impression I get is that before installing GPLPV, many benchmarks on Windows get "tricked" by some sort of caching effect on the dom0 side. If you try a more realistic test you will probably find that performance is actually better.

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