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



On Wed, 2006-04-12 at 10:18 +0800, Tian, Kevin wrote:
> Hi, Alex,
>       Could you provide something about your test environment, 
> and then I can try identical steps as yours to see what's the 
> bottleneck? For example:
>       - dom0 memory size
>       - domU memory size
>       - How do you measure the network throughput?
> 
>       BTW, Isaku's patch is upon Rev 9492, and then I'll also 
> measure upon that version.

Hi Kevin,

   My dom0 memory is the default 512MB, domU is 1GB (7GB in the system,
2-way w/ default vcpu to phys cpu mappings).  My throughput test is
simply pulling a ~300MB file from a local server using wget.  Something
like:

wget -O /dev/null http://local.server/big_file

Wget provides a progress report and average throughput at the end of the
transfer.  Let me know if you get different results, I tried several
times and seemed to get consistently degraded performance with the event
callback patch.  Thanks,

        Alex

-- 
Alex Williamson                             HP Linux & Open Source Lab


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