Re: [Xen-ia64-devel] [PATCH] Add support to physdev_ops

[Alex Williamson <alex.williamson@xxxxxx>]

On Thu, 2006-04-20 at 17:01 +0800, Tian, Kevin wrote:

> 2. This patch has no obvious performance influence (Why 
> I say 'obvious' is because latest p2m tree seems not very 
> stable even without this patch. The output drifts with -10-+10% 
> range... It's also possible due to my test environment. )

Hi Kevin,

   I ran some performance tests from xen-ia64-unstable on this patch
today and also didn't see any obvious performance difference.  My
results for wget for network and bonnie++ for disk were very consistent
between runs though.  It's nice to see that iosapic virtualization
appears to have such minimal overhead.  Thanks,

        Alex

-- 
Alex Williamson                             HP Linux & Open Source Lab


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