From owner-freebsd-current@FreeBSD.ORG Sat Sep 22 17:27:12 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0231916A41A for ; Sat, 22 Sep 2007 17:27:12 +0000 (UTC) (envelope-from matrix@itlegion.ru) Received: from corpmail.itlegion.ru (corpmail.itlegion.ru [84.21.226.211]) by mx1.freebsd.org (Postfix) with SMTP id 2EE5813C474 for ; Sat, 22 Sep 2007 17:27:10 +0000 (UTC) (envelope-from matrix@itlegion.ru) Received: (qmail 45883 invoked from network); 22 Sep 2007 21:27:09 +0400 Received: from unknown (HELO Artem) (192.168.0.12) by 84.21.226.211 with SMTP; 22 Sep 2007 21:27:09 +0400 X-AntiVirus: Checked by Dr.Web [version: 4.33, engine: 4.33.5.10110, virus records: 254163, updated: 22.09.2007] Message-ID: <019101c7fd3d$cd15f870$0c00a8c0@Artem> From: "Artem Kuchin" To: "Jack Vogel" References: <01c801c7fc7a$696ab900$0c00a8c0@Artem> <2a41acea0709211359w37ba779dsec94de504a9f4a9c@mail.gmail.com> Date: Sat, 22 Sep 2007 21:27:05 +0400 Organization: IT Legion MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 Cc: freebsd-current@freebsd.org Subject: Re: TSP on em makes send of streams very slow 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: Sat, 22 Sep 2007 17:27:12 -0000 > TSO is for some environments, it isn't gonna be useful at 100Mb > (which you are), it can be useful at 1Gb but not always, when you get > to 10G its > a HUGE benefit. > > Just cuz you can shoot yourself in the foot doesn't mean the gun has a > problem :) But wait, i did not shoot myself. I have been shot by the driver w/o any preliminary warning. TSO4 was enabled by DEFAULT (i did not enable it), so anybody can be in my place if used the same driver on the similar hardware (which is plenty). So, i think this is a problem which really need to be addressed. -- Regards, Artem