Re: [Xen-ia64-devel][PATCH] optimization for windows

[Jürgen Groß <juergen.gross@xxxxxxxxxxxxxxxxxxx>]

Xu, Anthony wrote:
> This is optimization for windows 2003.
> 
> Windows use region 4 and region 5 for identity mapping.
> 
> I see ~3% improvement when running specjbb2005 on guest windows after
> applying this patch.
> 

Did I understand this correct?
If Region 7 preferred page size is 8kB, Region 4 and 5 will be identity
mapping, regardless of DomU type?

This may work for windows (current version), but other DomUs might fail!

Wouldn't it be better to have some generic features like "region x identity
mapping with attributes y" which can be set via DomU configuration file?

Juergen

-- 
Juergen Gross                             Principal Developer
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