From owner-freebsd-performance@FreeBSD.ORG Sat Jun 25 07:11:22 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 B293C16A41C for ; Sat, 25 Jun 2005 07:11:22 +0000 (GMT) (envelope-from ap@bnc.net) Received: from mailomat.net (f-1.mailomat.net [217.110.117.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4976E43D4C for ; Sat, 25 Jun 2005 07:11:21 +0000 (GMT) (envelope-from ap@bnc.net) X-Mailomat-SpamCatcher-Score: 2 [X] Received: from [212.202.16.13] (account ap@bnc.net HELO bug) by mailomat.net (CommuniGate Pro SMTP 4.2) with ESMTP-TLS id 4816077; Sat, 25 Jun 2005 09:11:18 +0200 Message-ID: <00ff01c57955$0e5771c0$7000a8c0@bug> From: "Achim Patzner" To: "Arkadi Shishlov" , References: <000f01c577dd$0b82dad0$fef929d9@multiplay.co.uk><03bf01c57844$811874a0$fef929d9@multiplay.co.uk><42BBEE70.1050503@centtech.com> <20050624213926.GA7825@mebius.lv> Date: Sat, 25 Jun 2005 09:10:51 +0200 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 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Cc: Subject: Re: Fibre Gig card recommendations? 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: Sat, 25 Jun 2005 07:11:22 -0000 From: "Arkadi Shishlov" > Whats about performance and stability with MTU > 1500? I tried increasing > MTU on my Intel-made servers to speed-up NFS, but both 5.3 em and 2.x > Intel > provided drivers get stuck after some time with interface in OACTIVE > state. The same happened to us too, but I tracked it down to certain built-in NICs on Mainboards. I had good success with NatSemi NICs, too. Especially at even larger MTUs. Achim