From owner-freebsd-performance@FreeBSD.ORG Thu Nov 10 15:32:07 2005 Return-Path: X-Original-To: freebsd-performance@freebsd.org 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 48B7F16A420; Thu, 10 Nov 2005 15:32:07 +0000 (GMT) (envelope-from nevans@talkpoint.com) Received: from relay.talkpoint.com (pobox.talkpoint.com [204.141.15.158]) by mx1.FreeBSD.org (Postfix) with ESMTP id CBABF43D48; Thu, 10 Nov 2005 15:32:06 +0000 (GMT) (envelope-from nevans@talkpoint.com) Received: from ASSP-nospam ([127.0.0.1]) by relay.talkpoint.com with Microsoft SMTPSVC(5.0.2195.6713); Thu, 10 Nov 2005 10:32:05 -0500 Received: from 204.141.15.194 ([204.141.15.194] helo=pleiades.nextvenue.com) by ASSP-nospam ; 10 Nov 05 15:32:05 -0000 Date: Thu, 10 Nov 2005 10:32:05 -0500 From: Nick Evans To: Mike Jakubik Message-ID: <20051110103205.78d63c87@pleiades.nextvenue.com> In-Reply-To: <4373418E.1080907@rogers.com> References: <70e8236f0511050457s5ce6d8batf805fbc9edd91360@mail.gmail.com> <20051109060931.GD5188@obiwan.tataz.chchile.org> <70e8236f0511090517g29b3f887x1b97ef5dec04548@mail.gmail.com> <70e8236f0511090627p24c90400ke39bdb0da222a323@mail.gmail.com> <4372184C.10809@mebius.lv> <43727712.4020500@rogers.com> <20051110090429.J33260@fledge.watson.org> <4373418E.1080907@rogers.com> X-Mailer: Sylpheed-Claws 1.9.15 (GTK+ 2.6.10; i386-portbld-freebsd6.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 10 Nov 2005 15:32:05.0732 (UTC) FILETIME=[E7C3BA40:01C5E60B] Cc: freebsd-performance@freebsd.org, Robert Watson , Arkadi Shishlov Subject: Re: Poor Samba throughput on 6.0 X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Nov 2005 15:32:07 -0000 On Thu, 10 Nov 2005 07:48:14 -0500 Mike Jakubik wrote: > Robert Watson wrote: > > There are a number of TCP related configuration frobs on FreeBSD. It > > would be quite interesting to know how modifying each of the following > > settings affects Samba performance: > > > > net.inet.tcp.delayed_ack > > net.inet.tcp.sack.enable > > net.inet.tcp.inflight.enable > > > > There has been recent evidence that the inflight bandwidth calculation > > is having problems generating stable performance at high bandwidth and > > low latency, so I might try that one first. > I get about ~3MB/s extra, and a 16MB/s peak, with inflight disabled, > when downloading from the FreeBSD server to WindowsXP. An improvement, > but still not a desirable result. The other variables do not seem to > make much of a difference. > _______________________________________________ > freebsd-performance@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to > "freebsd-performance-unsubscribe@freebsd.org" What's the round trip time between the two devices? You might want to look at adjusting socket buffer sizes on Windows and FreeBSD per your bandwidth delay product. Nick