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From: Chris Wright <chrisw@redhat.com>
To: Vincent JARDIN <vincent.jardin@6wind.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	"Guofeng \(E\)" <wind.guo@huawei.com>,
	"lixiao \(H\)" <lixiao91@huawei.com>
Subject: Re: [dpdk-dev] Is VFIO driver's performance better than IGB_UIO?
Date: Fri, 8 Aug 2014 11:19:31 -0700	[thread overview]
Message-ID: <20140808181931.GK26743@x220.localdomain> (raw)
In-Reply-To: <53E49715.3020504@6wind.com>

* 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

      reply	other threads:[~2014-08-08 18:16 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-08  7:41 Linhaifeng
2014-08-08  7:45 ` Vincent JARDIN
2014-08-08  7:54   ` [dpdk-dev] 答复: " Linhaifeng
2014-08-08  9:23     ` [dpdk-dev] " Vincent JARDIN
2014-08-08 18:19       ` Chris Wright [this message]

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