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* [dpdk-dev]  Performance hit - NICs on different CPU sockets
@ 2016-06-13 14:07 Take Ceara
  2016-06-13 14:28 ` Bruce Richardson
  2016-06-13 19:35 ` Wiles, Keith
  0 siblings, 2 replies; 19+ messages in thread
From: Take Ceara @ 2016-06-13 14:07 UTC (permalink / raw)
  To: dev

Hi,

I'm reposting here as I didn't get any answers on the dpdk-users mailing list.

We're working on a stateful traffic generator (www.warp17.net) using
DPDK and we would like to control two XL710 NICs (one on each socket)
to maximize CPU usage. It looks that we run into the following
limitation:

http://dpdk.org/doc/guides/linux_gsg/nic_perf_intel_platform.html
section 7.2, point 3

We completely split memory/cpu/NICs across the two sockets. However,
the performance with a single CPU and both NICs on the same socket is
better.
Why do all the NICs have to be on the same socket, is there a
driver/hw limitation?

Thanks,
Dumitru Ceara

^ permalink raw reply	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2016-06-16 20:27 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-06-13 14:07 [dpdk-dev] Performance hit - NICs on different CPU sockets Take Ceara
2016-06-13 14:28 ` Bruce Richardson
2016-06-14  7:47   ` Take Ceara
2016-06-13 19:35 ` Wiles, Keith
2016-06-14  7:46   ` Take Ceara
2016-06-14 13:47     ` Wiles, Keith
2016-06-16 14:36       ` Take Ceara
2016-06-16 14:58         ` Wiles, Keith
2016-06-16 15:16           ` Take Ceara
2016-06-16 15:29             ` Wiles, Keith
2016-06-16 16:20               ` Take Ceara
2016-06-16 16:56                 ` Wiles, Keith
2016-06-16 16:59                   ` Wiles, Keith
2016-06-16 18:20                     ` Take Ceara
2016-06-16 19:33                       ` Wiles, Keith
2016-06-16 20:00                         ` Take Ceara
2016-06-16 20:16                           ` Wiles, Keith
2016-06-16 20:19                             ` Wiles, Keith
2016-06-16 20:27                               ` Take Ceara

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