From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-x22c.google.com (mail-wg0-x22c.google.com [IPv6:2a00:1450:400c:c00::22c]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 3178D21F182 for ; Tue, 18 Mar 2014 07:53:43 -0700 (PDT) Received: by mail-wg0-f44.google.com with SMTP id m15so5938363wgh.3 for ; Tue, 18 Mar 2014 07:53:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=mNSjX/tz8DoiO693eiFBLMm8Nbu88BMb/qsil8uaAd0=; b=c+2brbmFu6p+sqmi3jKUr2gyysmcNDAjismGAiI8c9Gt6tmseM1JOEa+49ziyN9Veg +E4l+x0z3Vpna/4nXZABoQ4KbVy19+zFGUrqR1Z0Si+pOtSktG3JawYr/LsLM9uMNlzj 7Wbu+3O4sgZQnBpuBgevGsGqox10fULTmT5qtr518aSVwo9N5Baqe8wa4UYLkLBdaKHb PWLDpZ8CEHPz4k1lMCk2ZOynSunSHM/BHGa3kgZMuPsT9/l+mqYXggtvhzi+8VHYA1PU E/ThqYMy9p3o+ABOh8ZVJ9nOCX1wIi8N5hklrKoJvmkDddiY1MZmh2df9CE8eVo0oHxn fdMQ== MIME-Version: 1.0 X-Received: by 10.180.37.178 with SMTP id z18mr15223579wij.46.1395154420956; Tue, 18 Mar 2014 07:53:40 -0700 (PDT) Received: by 10.216.8.1 with HTTP; Tue, 18 Mar 2014 07:53:40 -0700 (PDT) Date: Tue, 18 Mar 2014 10:53:40 -0400 Message-ID: Subject: Linux SCTP: what kind of performance should I expect from netperf? From: Dave Taht To: bloat-devel , netperf-dev@netperf.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-BeenThere: bloat-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Developers working on AQM, device drivers, and networking stacks" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Mar 2014 14:53:43 -0000 I was curious about sctp's performance characteristics on AQM'd systems... so I built netperf with sctp support, and ran a couple tests on kernel 3.11... +1: SCTP appears to work over IPv6 -1: Throughput is terrible d@nuc:~/git/netperf$ netperf -6 -H snapon.lab.bufferbloat.net -t SCTP_STREAM_MANY SCTP 1-TO-MANY STREAM TEST from ::0 (::) port 0 AF_INET6 to snapon.lab.bufferbloat.net () port 0 AF_INET6 : demo Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 212992 212992 4096 10.00 0.31 d@nuc:~/git/netperf$ netperf -6 -H snapon.lab.bufferbloat.net -t TCP_MAERTS MIGRATED TCP MAERTS TEST from ::0 (::) port 0 AF_INET6 to snapon.lab.bufferbloat.net () port 0 AF_INET6 : demo Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.00 7.65 --=20 Dave T=E4ht Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.= html