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

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

>From: Alex Williamson [mailto:alex.williamson@xxxxxx]
>Sent: 2006年4月12日 13:03
>On Wed, 2006-04-12 at 12:00 +0800, Tian, Kevin wrote:
>
>> BTW, when you observed domU network degradation, how about
>> the network of dom0? If dom0 is not affected, it's obvious that the
>> whole event path is placed lower priority than whole interrupt path,
>> and thus affects virtual drivers. If that's the case, I'll check whether
>> some logic can be added to match original flow.
>
>   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,
>
>       Alex
>

Now I've confirmed p2m patch working for me, though some warning
info there. Could you or anyone else post a brief instruction to setup 
network for domU? Seems I'm still lost in this area. :-( Then I can try
to reproduce your observation with some fixes.

Thanks,
Kevin

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