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From: Linhaifeng <haifeng.lin@huawei.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: [dpdk-dev] 答复:  Is VFIO driver's performance better than IGB_UIO?
Date: Fri, 8 Aug 2014 07:54:55 +0000	[thread overview]
Message-ID: <4099DE2E54AFAD489356C6C9161D533363BB4727@szxema505-mbx.china.huawei.com> (raw)
In-Reply-To: <53E4802F.70904@6wind.com>

Thank you very much.

My cpu is "Intel(R) Xeon(R) CPU           E5620  @ 2.40GHz" 


-----邮件原件-----
发件人: Vincent JARDIN [mailto:vincent.jardin@6wind.com] 
发送时间: 2014年8月8日 15:46
收件人: Linhaifeng
抄送: dev@dpdk.org; lixiao (H); Guofeng (E)
主题: Re: [dpdk-dev] Is VFIO driver's performance better than IGB_UIO?

On 08/08/2014 09:41, Linhaifeng wrote:
> I have test the VFIO driver and IGB_UIO driver by l2fwd for many times. I find that the VFIO driver’s performance is not better than the IGB_UIO.

You are right, under some conditions UIO is faster, VFIO provides safety. The best solution is a PMD without UIO, neither VFIO.

which CPU are you using?

Best regards,
  Vincent

  reply	other threads:[~2014-08-08  7:52 UTC|newest]

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

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