From owner-freebsd-net@FreeBSD.ORG Mon May 14 04:21:35 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 0D32C106578B for ; Mon, 14 May 2012 04:21:34 +0000 (UTC) (envelope-from vansiwow@gmail.com) Received: from mail-pz0-f54.google.com (mail-pz0-f54.google.com [209.85.210.54]) by mx1.freebsd.org (Postfix) with ESMTP id 20D2A8FC12 for ; Mon, 14 May 2012 04:21:33 +0000 (UTC) Received: by dadv36 with SMTP id v36so6087277dad.13 for ; Sun, 13 May 2012 21:21:33 -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; bh=UsbGUdU/uwS8JXQW3uXtqjcdiXk2/IQVs0vMdpBh99M=; b=nwN4pCuQryxFLJ21l/KXLY+j6rT2rr3sf5mtejxpazz1UgfwnMV1oimyycr06Rmqnk p7Jk5VGxCiBlkhO9eBftmX/zIvUonCEutQLcjHmh7LAkHd1Wp1qDprRUuzwJDE++Ai8y bJhFyBHeNMXEYNIWJUSUszaEDCRLifgRT6TnDIBFQ4Qi4scrRY14y6Mxt5qG731Iraw9 oKvNz4sHEv5gAOC3ii6c6ywKazHfhn/WSw762KmTFztfFw/N5Tsc8Gg+/Fnn60jOKxTy wOS0cdF5IbotnI8801AqqbtGAs/dgHMyhttxJD3Ndw2HzZBxHqluiy/4kgrKuzHbpOM8 fsZw== MIME-Version: 1.0 Received: by 10.68.135.40 with SMTP id pp8mr18480601pbb.13.1336969293763; Sun, 13 May 2012 21:21:33 -0700 (PDT) Received: by 10.68.48.2 with HTTP; Sun, 13 May 2012 21:21:33 -0700 (PDT) Date: Mon, 14 May 2012 09:51:33 +0530 Message-ID: From: vansi wow To: sctp-impl@external.cisco.com, freebsd-net@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Subject: Regarding SCTP performance X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 May 2012 04:21:35 -0000 Hi All, we have ported SCTP from FreeBSD 7.0 tree , but we face the issue that when we measure the throughput performance of the stack , we see that SCTP throughput is half that of the TCP throughput . Is there some tuning which can be done or some tweaks which can help improve the performance . TCP : ===== SO_SNDBUF = 32768 SO_RCVBUF = 32768 Throughput: 5653KB/s SCTP: ====== SNDBUF = 838860 RCVBUF = 838860 Throughput = 2422 KB/s Regards, Vamshi