From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: vswitches performance comparison Date: Tue, 21 Jul 2015 14:02:05 -0700 Message-ID: <20150721140205.485d35b4@urahara> References: <----Tc------lRRzc$3e501353-5ebe-4161-b9d4-01ebdf81a6de@cloudnetengine.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: dev , discuss To: "Jun Xiao" Return-path: Received: from mail-pa0-f52.google.com (mail-pa0-f52.google.com [209.85.220.52]) by dpdk.org (Postfix) with ESMTP id 64C705A44 for ; Tue, 21 Jul 2015 23:01:56 +0200 (CEST) Received: by padck2 with SMTP id ck2so125574549pad.0 for ; Tue, 21 Jul 2015 14:01:55 -0700 (PDT) In-Reply-To: <----Tc------lRRzc$3e501353-5ebe-4161-b9d4-01ebdf81a6de@cloudnetengine.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On Wed, 22 Jul 2015 02:00:42 +0800 "Jun Xiao" wrote: > After CloudNetEngine vswitch technical preview is launched, we received quite > a few queries on vswitches performance comparison, but we cannot simply give a > test result on our platform because performance varies on different H/Ws and > different workloads, and that's why we encourage you to try the evaluation > package to get real data on your setup. > > Anyway, we share a little more performance data on our H/W which is a comparison > among native kernel OVS/OVS-DPDK/CNE vswitch under the most common workload: > concurrent bi-directional TCP traffics cross hosts, and hope you can have a rough idea. > http://www.cloudnetengine.com/weblog/2015/07/22/vswitches-performance-comparison/ > > Thanks, > Jun Since the real bottleneck in most vswitches is per-packet overhead. I would recommend running RFC-2544 tests for better data. You probably need to use something like pktgen to get enough packets-per-second.