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
next prev parent 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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