From owner-freebsd-performance@FreeBSD.ORG Fri Oct 22 16:31:35 2004 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C33F216A4CE for ; Fri, 22 Oct 2004 16:31:35 +0000 (GMT) Received: from multiplay.co.uk (www1.multiplay.co.uk [212.42.16.7]) by mx1.FreeBSD.org (Postfix) with ESMTP id E751943D2F for ; Fri, 22 Oct 2004 16:31:34 +0000 (GMT) (envelope-from killing@multiplay.co.uk) Received: from stevenp4 ([193.123.241.40]) by multiplay.co.uk (multiplay.co.uk [212.42.16.7]) (MDaemon.PRO.v7.2.0.R) with ESMTP id md50000650844.msg for ; Fri, 22 Oct 2004 17:23:41 +0100 Message-ID: <040701c4b854$72f0e4d0$7f06000a@int.mediasurface.com> From: "Steven Hartland" To: "Claudiu Chirita" References: <004e01c4b831$c317c640$0c0210ac@ADMIN1> <028b01c4b837$b7532c90$7f06000a@int.mediasurface.com> <005301c4b840$0444ec20$0c0210ac@ADMIN1> <41792185.7010503@rdsnet.ro> <038f01c4b84f$b63fd3e0$7f06000a@int.mediasurface.com> <4179307F.3060205@rdsnet.ro> Date: Fri, 22 Oct 2004 17:30:31 +0100 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="koi8-r"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Spam-Processed: multiplay.co.uk, Fri, 22 Oct 2004 17:23:41 +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-performance@freebsd.org X-MDAV-Processed: multiplay.co.uk, Fri, 22 Oct 2004 17:23:43 +0100 cc: Oleg Gawriloff cc: freebsd-performance@freebsd.org Subject: Re: decreasing interrupt CPU load X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Oct 2004 16:31:35 -0000 If you try standard packets e.g. an unlimited single ftp transfer does it limit to HZ interrupts / s? That's what I see when just looking in systat ( vm ) without this its around 4000 -> 6000 i/s depending on if link0 is active. Steve / K ----- Original Message ----- From: "Claudiu Chirita" > I've made some tests with netperf to generate small size UDP packets. > With polling enabled, I saw performance decreasing. > Claudiu C. ================================================ 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.