From: "Wiles, Roger Keith" <keith.wiles@windriver.com>
To: jinho hwang <hwang.jinho@gmail.com>
Cc: dev <dev@dpdk.org>
Subject: Re: [dpdk-dev] ways to generate 40Gbps with two NICs x two ports?
Date: Tue, 19 Nov 2013 16:31:06 +0000 [thread overview]
Message-ID: <65281A9A-D192-4C9E-9EF8-A02E0A999862@windriver.com> (raw)
In-Reply-To: <CAPQGAnFqvFJPf0woR2x4bU-X-sxyXm5h=CNzE5+=pHeZMOz6eQ@mail.gmail.com>
How do you have Pktgen configured in this case?
On my westmere dual socket 3.4Ghz machine I can send 20G on a single NIC 82599x two ports. My machine has a PCIe bug that does not allow me to send on more then 3 ports at wire rate. I get close to 40G 64 byte packets, but the forth port does is about 70% of wire rate because of the PCIe hardware bottle neck problem.
Keith Wiles, Principal Technologist for Networking member of the CTO office, Wind River
direct 972.434.4136 mobile 940.213.5533 fax 000.000.0000
[Powering 30 Years of Innovation]<http://www.windriver.com/announces/wr30/>
On Nov 19, 2013, at 10:09 AM, jinho hwang <hwang.jinho@gmail.com<mailto:hwang.jinho@gmail.com>> wrote:
Hi All,
I have two NICs (82599) x two ports that are used as packet generators. I
want to generate full line-rate packets (40Gbps), but Pktgen-DPDK does not
seem to be able to do it when two port in a NIC are used simultaneously.
Does anyone know how to generate 40Gbps without replicating packets in the
switch?
Thank you,
Jinho
next prev parent reply other threads:[~2013-11-19 16:30 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-19 16:09 jinho hwang
2013-11-19 16:31 ` Wiles, Roger Keith [this message]
2013-11-19 16:42 ` jinho hwang
2013-11-19 16:52 ` Wiles, Roger Keith
2013-11-19 16:54 ` Wiles, Roger Keith
2013-11-19 17:04 ` jinho hwang
2013-11-19 17:24 ` Wiles, Roger Keith
2013-11-19 17:35 ` jinho hwang
2013-11-19 21:18 ` Wiles, Roger Keith
2013-11-19 21:33 ` jinho hwang
2013-11-19 21:38 ` Wiles, Roger Keith
2013-11-20 20:58 ` jinho hwang
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