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

["Ian Tobin" <itobin@xxxxxxxxxxxxx>]

Oh right, makes sense.

 

Ill try something else tomorrow, thanks for getting back to me

 

 

From: Nathan O'Sullivan [mailto:nathan@xxxxxxxxxxxxxx]
Sent: 17 December 2009 19:44
To: Ian Tobin
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Disk I/O performance with GPLPV 10.0.142

 

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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