From owner-freebsd-current@FreeBSD.ORG Sun Oct 1 13:16:38 2006 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5C91016A407; Sun, 1 Oct 2006 13:16:38 +0000 (UTC) (envelope-from rrs@cisco.com) Received: from sj-iport-5.cisco.com (sj-iport-5.cisco.com [171.68.10.87]) by mx1.FreeBSD.org (Postfix) with ESMTP id D211643D4C; Sun, 1 Oct 2006 13:16:37 +0000 (GMT) (envelope-from rrs@cisco.com) Received: from sj-dkim-8.cisco.com ([171.68.10.93]) by sj-iport-5.cisco.com with ESMTP; 01 Oct 2006 06:16:38 -0700 X-IronPort-AV: i="4.09,240,1157353200"; d="scan'208"; a="327016250:sNHT53262180" Received: from sj-core-4.cisco.com (sj-core-4.cisco.com [171.68.223.138]) by sj-dkim-8.cisco.com (8.12.11.20060308/8.12.11) with ESMTP id k91DGbR3001652; Sun, 1 Oct 2006 06:16:37 -0700 Received: from xbh-sjc-221.amer.cisco.com (xbh-sjc-221.cisco.com [128.107.191.63]) by sj-core-4.cisco.com (8.12.10/8.12.6) with ESMTP id k91DGaid026857; Sun, 1 Oct 2006 06:16:37 -0700 (PDT) Received: from xfe-sjc-212.amer.cisco.com ([171.70.151.187]) by xbh-sjc-221.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Sun, 1 Oct 2006 06:16:36 -0700 Received: from [127.0.0.1] ([171.68.225.134]) by xfe-sjc-212.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Sun, 1 Oct 2006 06:16:36 -0700 Message-ID: <451FBF91.5070205@cisco.com> Date: Sun, 01 Oct 2006 09:16:01 -0400 From: Randall Stewart User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050920 X-Accept-Language: en-us, en MIME-Version: 1.0 To: =?ISO-8859-1?Q?Dag-Erling_Sm=F8rgrav?= References: <451D5801.8030504@cisco.com> <86r6xtjv6t.fsf@dwp.des.no> In-Reply-To: <86r6xtjv6t.fsf@dwp.des.no> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-OriginalArrivalTime: 01 Oct 2006 13:16:36.0283 (UTC) FILETIME=[D27D00B0:01C6E55B] DKIM-Signature: a=rsa-sha1; q=dns; l=852; t=1159708597; x=1160572597; c=relaxed/relaxed; s=sjdkim8002; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=rrs@cisco.com; z=From:Randall=20Stewart=20 |Subject:Re=3A=20Some=20interesting=20plots; X=v=3Dcisco.com=3B=20h=3DDnvFjLlaCiqpykMSuzGHUGiLUtk=3D; b=RFSxOvosm2fQ9uGnc7Cizzw0SqX09ZwrM/q4lne3jT/wuHKIafcVyMenQK/6Zx1HXxc1+2CN I4VdyBEgxOWsixbsxD/HDRfxReabPTRxJ7YMTQd4E0reVc+mnglKBa9g; Authentication-Results: sj-dkim-8.cisco.com; header.From=rrs@cisco.com; dkim=pass ( sig from cisco.com verified; ); Cc: Peter Lei , Michael Tuexen , Robert Watson , "George V. Neville-Neil" , freebsd-current@freebsd.org Subject: Re: Some interesting plots X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 01 Oct 2006 13:16:38 -0000 Dag-Erling Smørgrav wrote: > Randall Stewart writes: > >>As you all may know I have been working on getting SCTP >>into Current.. >> >>I have been, of late, trying to tweak things to get >>the BEST performance out of the implementation... > > > the first rule of software optimization: don't do it > > the second rule of software opimization (for experts only): don't do it yet > > DES When I started optimizing a couple of years ago.. (this is probably the 3rd or 4th pass of it) the SCTP implementation would not get more than 300M on the current configuration I illustrated... I am now up to 750M ... along the way I have fixed numerous bugs ... having been in this business almost 25 years now I humbly disagree :-) R -- Randall Stewart NSSTG - Cisco Systems Inc. 803-345-0369 815-342-5222 (cell)