From owner-freebsd-current@FreeBSD.ORG Sun Jan 8 13:33:40 2006 Return-Path: X-Original-To: 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 504F716A41F; Sun, 8 Jan 2006 13:33:40 +0000 (GMT) (envelope-from danger@rulez.sk) Received: from mail.rulez.sk (DaEmoN.RuLeZ.sK [84.16.32.226]) by mx1.FreeBSD.org (Postfix) with ESMTP id ECE7143D45; Sun, 8 Jan 2006 13:33:35 +0000 (GMT) (envelope-from danger@rulez.sk) Received: from localhost (localhost [127.0.0.1]) by mail.rulez.sk (Postfix) with ESMTP id 2DCBC1CC64; Sun, 8 Jan 2006 14:33:30 +0100 (CET) Received: by mail.rulez.sk (Postfix, from userid 1001) id 9FA221CC62; Sun, 8 Jan 2006 14:33:22 +0100 (CET) Date: Sun, 8 Jan 2006 14:33:22 +0100 From: Daniel Gerzo To: Andre Oppermann Message-ID: <20060108133322.GA39105@daemon.rulez.sk> References: <73774.1136109554@critter.freebsd.dk> <20060101035958.A86264@xorpc.icir.org> <43B7E1EC.5090301@mac.com> <200601060636.k066aNYn079015@apollo.backplane.com> <43BFEB2E.4040303@freebsd.org> <200601071940.k07JeHt3095158@apollo.backplane.com> <43C02362.2070009@samsco.org> <1136717948.4312.5.camel@massimo.datacode.it> <43C0F89B.7FC19C0F@freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <43C0F89B.7FC19C0F@freebsd.org> User-Agent: Mutt/1.4.2.1i X-Virus-Scanned: by amavisd-new at mail.rulez.sk X-Spam-Status: No, score=-2.6 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, NO_RELAYS=-0.001] X-Spam-Score: -2.6 X-Spam-Level: X-Mailman-Approved-At: Wed, 11 Jan 2006 03:30:41 +0000 Cc: current@freebsd.org Subject: Re: Patch for 1mpps on if_em (was: FreeBSD handles leapsecondcorrectly) 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, 08 Jan 2006 13:33:40 -0000 On Sun, Jan 08, 2006 at 12:33:47PM +0100, Andre Oppermann wrote: > Massimo Lusetti wrote: > > > > On Sat, 2006-01-07 at 13:24 -0700, Scott Long wrote: > > > > > I'm about to release a patch to Andre that should allow if_em to fast > > > forward 1mpps or more on his hardware, using no shortcuts or hacks other > > > than the inherent shortcut that the ffwd code provides. The approach > > > I'm taking also works on the other high performance network interfaces. > > > There is also a lot of work going on to streamline the ifnet layer that > > > will likely result in several hundred nanoseconds of latency being > > > removed from there. I'd personally love to see DragonFly approach this > > > > Will all this great stuff end up in RELENG_6 branch? > > Some of it but not all. Those things which are driver optimizations and > other detail stuff will be backported. Stuff that does architectual and > API/ABI changes will not. We are not allowed to break the API/ABI within > a -STABLE series. > are these things related to your TCP/IP Cleanup and Optimizations work? if so, does it mean that you are going to merge this work to current soon? > > That's very good news (TM) to hear... > > Indeed. I have tons of measurements and data from the test runs which has > to be processed. Once that is done we can start to reach firm conclusions > and to tackle all the other items which put some breaks on the performance. > > -- > Andre -- Daniel