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

[Alex Williamson <alex.williamson@xxxxxx>]

On Tue, 2006-04-11 at 23:02 -0600, Alex Williamson wrote:

>    It appears dom0 is not affected and has good throughput.  Here's an
> interesting observation though; if I wget from dom0 and domU at the same
> time, dom0 is a little slower (~82MB/s), but the domU throughput
> actually increases while the wget in dom0 is running.  According to
> nload, domU's throughput nearly doubles for the brief time dom0's wget
> is running.  Even wget'ing a different file off the server with dom0
> causes domUs wget to speed up.  Perhaps an indication that your priority
> hunch is correct?  Thanks,

   In contrast, w/o the event channel patch, domU is unaffected by a
concurrent wget in dom0 (fairly constant ~10.5MB/s).  However, dom0 only
runs at around 9MB/s while domU's transfer is running.

        Alex

-- 
Alex Williamson                             HP Linux & Open Source Lab


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