* dpdk vs netmap
@ 2014-03-10 5:48 Bob Chen
[not found] ` <tencent_539A9522168179FF45A3F312-9uewiaClKEY@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Bob Chen @ 2014-03-10 5:48 UTC (permalink / raw)
To: dev
What's the advantage of DPDK over another accelaration framework called netmap?
^ permalink raw reply [flat|nested] 3+ messages in thread[parent not found: <tencent_539A9522168179FF45A3F312-9uewiaClKEY@public.gmane.org>]
* Re: dpdk vs netmap [not found] ` <tencent_539A9522168179FF45A3F312-9uewiaClKEY@public.gmane.org> @ 2014-03-10 6:39 ` François-Frédéric Ozog 2014-03-10 15:53 ` Stephen Hemminger 0 siblings, 1 reply; 3+ messages in thread From: François-Frédéric Ozog @ 2014-03-10 6:39 UTC (permalink / raw) To: 'Bob Chen'; +Cc: 'dev' Well done! I guess that's the shortest question on the list, and probably the one that's going to trigger the largest discussion. A few months, ago I had to answer it for a customer. And here is my understanding: - DPDK is also a high performance multi-core application framework. You take out the packet framework and DPDK has still value because it allows you to get the most of a multi-core environment. In other words, if you want to develop say an accelerated web server, you have better chances to achieve the best results with DPDK because it does not stop providing performance helpers at the "packet pump" level: threading model, high performance memory management, high performance locking in userland... - DPDK programming requires more effort at the beginning because of this multi-core environment - DPDK is now at the center of an informal eco-system. Not too long from now, I assume you will have a "DPDK-store" from which you will obtain either freely or with a fee a lot of additional components: TCP/IP stack... Now if you want detailed comparison on the performance aspects.... Here is my view: on a simple L2/L3 packet forwarding "proof of concept" with 2 ports you will find them equal: the CPU does not do enough. So you need to model your application and try it with at least 2 ports on both environments. And you probably want to put it at serious test with 8, 16 or even 22 ports. Then you'll get your answer. Bet's are open. I put a beer on DPDK ;-) François-Frédéric > -----Message d'origine----- > De : dev [mailto:dev-bounces-VfR2kkLFssw@public.gmane.org] De la part de Bob Chen > Envoyé : lundi 10 mars 2014 06:49 > À : dev > Objet : [dpdk-dev] dpdk vs netmap > > What's the advantage of DPDK over another accelaration framework called > netmap? ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: dpdk vs netmap 2014-03-10 6:39 ` François-Frédéric Ozog @ 2014-03-10 15:53 ` Stephen Hemminger 0 siblings, 0 replies; 3+ messages in thread From: Stephen Hemminger @ 2014-03-10 15:53 UTC (permalink / raw) To: François-Frédéric Ozog; +Cc: 'dev' This is talk I did a couple of years ago. http://www.slideshare.net/shemminger/uio-final ^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-03-10 5:48 dpdk vs netmap Bob Chen
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2014-03-10 6:39 ` François-Frédéric Ozog
2014-03-10 15:53 ` Stephen Hemminger
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