RE: [Xen-ia64-devel] [PATCH] Add event callback for xen/ia64

[Alex Williamson <alex.williamson@xxxxxx>]

On Tue, 2006-04-11 at 21:59 +0800, Tian, Kevin wrote:
> >From: Tristan Gingold [mailto:Tristan.Gingold@xxxxxxxx]
> >* Performances ?
> 
> There should be no obvious difference. The importance here
> is that this patch is only an intermediate step toward final
> solution. It makes more sense to measure performance at the
> last step when all pirq/virq/ipi are bound to this path. Finally it
> should be better. Also please note this is necessary feature 
> requirement to reuse common architecture and thus support 
> more advanced features easily just like Isaku's p2m effort. The 
> performance can be always tuned on top of this path gradually.

Kevin,

   It might be a good idea to try this with Isaku's current set of
patches.  I saw ~10x performance decrease in network performance from
domU with this patch applied (10MB/s+ to <1MB/s).  Thanks,

        Alex

-- 
Alex Williamson                             HP Linux & Open Source Lab


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