From owner-freebsd-amd64@FreeBSD.ORG Fri May 21 09:07:05 2004 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4481316A4CE for ; Fri, 21 May 2004 09:07:05 -0700 (PDT) Received: from multiplay.co.uk (www1.multiplay.co.uk [212.42.16.7]) by mx1.FreeBSD.org (Postfix) with ESMTP id BDDD043D46 for ; Fri, 21 May 2004 09:07:04 -0700 (PDT) (envelope-from killing@multiplay.co.uk) Received: from steven ([193.123.241.40]) by multiplay.co.uk (multiplay.co.uk [212.42.16.7]) (MDaemon.PRO.v7.1.0.R) with ESMTP id md50000225306.msg for ; Fri, 21 May 2004 17:05:10 +0100 Message-ID: <014301c43f4d$ea2ce920$7b07000a@int.mediasurface.com> From: "Steven Hartland" To: "Andrew Gallatin" References: <200405202235.46755.Gregor.Bittel@GMX.de><5.2.0.9.2.20040520122752.015eec60@mail.ojoink.com><5.2.0.9.2.20040520141038.0432d130@mail.ojoink.com><007701c43ec5$ff0a6fd0$b3db87d4@multiplay.co.uk><00de01c43eeb$f2753220$b3db87d4@multiplay.co.uk> <16558.7445.195712.176174@grasshopper.cs.duke.edu> Date: Fri, 21 May 2004 17:07:51 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Spam-Processed: multiplay.co.uk, Fri, 21 May 2004 17:05:10 +0100 (not processed: message from valid local sender) X-MDRemoteIP: 193.123.241.40 X-Return-Path: killing@multiplay.co.uk X-MDaemon-Deliver-To: freebsd-amd64@freebsd.org X-MDAV-Processed: multiplay.co.uk, Fri, 21 May 2004 17:05:11 +0100 cc: freebsd-amd64@freebsd.org Subject: Re: Why is MySQL nearly twice as fast on Linux/AMD64Vs.FreeBSD/AMD64? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 May 2004 16:07:05 -0000 Thanks muchly for that Andrew will try that. Looking at the results from the netperf test posted here: http://people.freebsd.org/~pjd/netperf/ so I'd say yes to your question. The machine moved home today ( my bedroom -> datacenter ), thank goodness its was a noisy beast. So will have to wait till it gets installed, some time tonight, before I can test. Steve ----- Original Message ----- From: "Andrew Gallatin" > > Nice work. Does this translate pretty much directly into netperf > request/response results? (netperf -tTCP_RR -Hremote) > > Assuming it does, have you tried "tuning" the bge interrupt coalescing > params? Without adding an interface, I'd just suggest doing something > like changing sc->bge_rx_max_coal_bds from 64 to 1 around like 2350 of > dev/bge/if_bge.c, rebuilding the driver, and seeing what changes. I'm > betting that will turn off recv interrupt coalescing and reduce your > latency some. > > Drew ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone (023) 8024 3137 or return the E.mail to postmaster@multiplay.co.uk.