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Date: Fri, 8 Aug 2014 11:19:31 -0700
From: Chris Wright <chrisw@redhat.com>
To: Vincent JARDIN <vincent.jardin@6wind.com>
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Cc: "dev@dpdk.org" <dev@dpdk.org>, "Guofeng \(E\)" <wind.guo@huawei.com>,
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Subject: Re: [dpdk-dev] Is VFIO driver's performance better than IGB_UIO?
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* Vincent JARDIN (vincent.jardin@6wind.com) wrote:
> > My cpu is "Intel(R) Xeon(R) CPU           E5620  @ 2.40GHz"
> 
> It is a Westmere if I am correct. So,use UIO.

My experience is that the CPU isn't as an important part of the platform
as the chipset.  IOW, VFIO requires full IOMMU isolation, and the IOMMU
cost depends on the chipset.

Vincent, is that what you were implying by cpu, or do you see something
else?

thanks,
-chris