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Re: [Xen-ia64-devel] PATCH: reimplement vcpu_get_psr

from [tgingold] [Permanent Link][Original]
To: Alex Williamson <alex.williamson@xxxxxx>
Subject: Re: [Xen-ia64-devel] PATCH: reimplement vcpu_get_psr
From: tgingold@xxxxxxx
Date: Fri, 01 Jun 2007 09:39:45 +0200
Cc: Xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
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Quoting Alex Williamson <alex.williamson@xxxxxx>:

> On Mon, 2007-05-28 at 15:20 +0200, Tristan Gingold wrote:
> > Hi,
> >
> > almost the same as before, but without the slowdown!
>
>   Strange that setting the MC bit made such a difference.
Yes, I suppose the MC bit disable some optimizations in the processor.  Quite
interesting indeed!

Tristan.

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