From owner-freebsd-current@FreeBSD.ORG Mon Nov 13 15:38:49 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 ACA9A16A407 for ; Mon, 13 Nov 2006 15:38:49 +0000 (UTC) (envelope-from pieter@degoeje.nl) Received: from smtp.utwente.nl (smtp1.utsp.utwente.nl [130.89.2.8]) by mx1.FreeBSD.org (Postfix) with ESMTP id E2C7A43D73 for ; Mon, 13 Nov 2006 15:38:36 +0000 (GMT) (envelope-from pieter@degoeje.nl) Received: from nox.student.utwente.nl (nox.student.utwente.nl [130.89.165.91]) by smtp.utwente.nl (8.12.10/SuSE Linux 0.7) with ESMTP id kADFbvLr017130; Mon, 13 Nov 2006 16:37:57 +0100 From: Pieter de Goeje To: pyunyh@gmail.com Date: Mon, 13 Nov 2006 16:37:57 +0100 User-Agent: KMail/1.9.4 References: <20061111011051.GB5233@cdnetworks.co.kr> In-Reply-To: <20061111011051.GB5233@cdnetworks.co.kr> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200611131637.57216.pieter@degoeje.nl> X-UTwente-MailScanner-Information: Scanned by MailScanner. Contact helpdesk@ITBE.utwente.nl for more information. X-UTwente-MailScanner: Found to be clean X-UTwente-MailScanner-From: pieter@degoeje.nl X-Spam-Status: No Cc: freebsd-current@freebsd.org Subject: Re: Call for re(4) TSO/VLAN testers 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: Mon, 13 Nov 2006 15:38:49 -0000 On Saturday 11 November 2006 02:10, Pyun YongHyeon wrote: > With TSO you can see reduced system load while large file transfers > is in progress. Please test the patch and report any unusual things > you've found. Idle time has increased from 0% to 25% with this patch while sustaining the transferrate (520Mbit/s) previously reached with iperf. With the patch the number of interrupts/sec. was halved from 32K to 16K. The test was performed on a fresh current without any tuning but with debug support removed. System details: CPU: AMD Sempron(tm) 2400+ (1659.95-MHz 686-class CPU) re0@pci0:9:0: class=0x020000 card=0x816910ec chip=0x816910ec rev=0x10 hdr=0x00 vendor = 'Realtek Semiconductor' device = 'RTL8169 Gigabit Ethernet Adapter' The receiving end was probably limiting the transferrate. -- Pieter de Goeje