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RE: [Xen-users] Windows domU opitimization

To: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>, "Sylvain Viollat" <sviollat@xxxxxxxxxxxxx>, <Xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] Windows domU opitimization
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Tue, 2 Mar 2010 09:22:28 +1100
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Thread-topic: [Xen-users] Windows domU opitimization
> 
> /PATCHTPR activates a feature in gplpv that patches the windows kernel
> to avoid using a certain hardware register (Task PRiority). Access to
> the register is very slow, and it is accessed very frequently.
> 

And in case you were wondering, this also affects Windows 2003 sp1 and
older. Windows 2003 sp2 does not access the TPR register at all and so
does not need the patch.

James

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