From owner-freebsd-performance@FreeBSD.ORG Mon Mar 27 04:42:57 2006 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 1D07016A400 for ; Mon, 27 Mar 2006 04:42:57 +0000 (UTC) (envelope-from g_jin@lbl.gov) Received: from smtp108.sbc.mail.mud.yahoo.com (smtp108.sbc.mail.mud.yahoo.com [68.142.198.207]) by mx1.FreeBSD.org (Postfix) with SMTP id 92DDE43D46 for ; Mon, 27 Mar 2006 04:42:56 +0000 (GMT) (envelope-from g_jin@lbl.gov) Received: (qmail 96338 invoked from network); 27 Mar 2006 04:42:56 -0000 Received: from unknown (HELO ?192.168.2.10?) (jinmtb@sbcglobal.net@68.127.164.232 with plain) by smtp108.sbc.mail.mud.yahoo.com with SMTP; 27 Mar 2006 04:42:55 -0000 Message-ID: <44276151.1060302@lbl.gov> Date: Sun, 26 Mar 2006 19:51:45 -0800 From: "Jin Guojun [VFFS]" User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.5) Gecko/20050108 X-Accept-Language: zh, zh-CN, en MIME-Version: 1.0 To: OxY References: <20060322071023.70808.qmail@web30305.mail.mud.yahoo.com> <442187FE.3060300@lbl.gov> <003301c64f44$89fdcd40$0201a8c0@oxy> <820F5FD6-C31F-4C28-9E66-64643C03086B@foolishgames.com> <4424520D.9000504@lbl.gov> <008501c65030$96726710$0201a8c0@oxy> In-Reply-To: <008501c65030$96726710$0201a8c0@oxy> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Lucas Holt , FreeBSD Mailing Lists , Arne Woerner Subject: Re: packet drop with intel gigabit / marwell gigabit 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: Mon, 27 Mar 2006 04:42:57 -0000 OxY wrote: > what kind of details should i attach? to analyze the problem? Assume that you have process A to cause process B dropping packets: Step (1): Run B only -- what is the maximum through without packet drop? what is the CPU utilization? what type of traffic (protocol -- TCP, UDP, etc.) does B use? does B have other I/O? If so, how much is the I/O bandwidth used? Step (2): reRun B and involving A gradually (increasing A's wieght) till B drops packets. provide all above statistics for A and B at this point (where drop starts). One thing I missed in your original post what protocol drops packet -- TCP or UDP? -Jin From owner-freebsd-performance@FreeBSD.ORG Mon Mar 27 16:45:18 2006 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 22AB416A423 for ; Mon, 27 Mar 2006 16:45:18 +0000 (UTC) (envelope-from oxy@field.hu) Received: from green.field.hu (green.field.hu [217.20.130.28]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4DA0243D7B for ; Mon, 27 Mar 2006 16:45:11 +0000 (GMT) (envelope-from oxy@field.hu) Received: from localhost (green.field.hu [217.20.130.28]) by green.field.hu (Postfix) with ESMTP id 3E84A119D2E; Mon, 27 Mar 2006 18:44:09 +0200 (CEST) Received: from green.field.hu ([217.20.130.28]) by localhost (green.field.hu [217.20.130.28]) (amavisd-new, port 10024) with ESMTP id 10002-08; Mon, 27 Mar 2006 18:44:09 +0200 (CEST) Received: from oxy (dsl217-197-187-71.pool.tvnet.hu [217.197.187.71]) by green.field.hu (Postfix) with ESMTP id DFBC8119CC4; Mon, 27 Mar 2006 18:44:08 +0200 (CEST) Message-ID: <001601c651bd$d1774040$0201a8c0@oxy> From: "OxY" To: "Jin Guojun [VFFS]" References: <20060322071023.70808.qmail@web30305.mail.mud.yahoo.com> <442187FE.3060300@lbl.gov> <003301c64f44$89fdcd40$0201a8c0@oxy> <820F5FD6-C31F-4C28-9E66-64643C03086B@foolishgames.com> <4424520D.9000504@lbl.gov> <008501c65030$96726710$0201a8c0@oxy> <44276151.1060302@lbl.gov> Date: Mon, 27 Mar 2006 18:45:12 +0200 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2670 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2670 X-Virus-Scanned: by Amavisd-new (Spamassassin+Razor2+Pyzor+DCC+Bayes db, Clamd Antivirus) at field.hu Cc: Lucas Holt , FreeBSD Mailing Lists , Arne Woerner Subject: Re: packet drop with intel gigabit / marwell gigabit 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: Mon, 27 Mar 2006 16:45:18 -0000 i decided to give up, can't get rid of packet loss... thank you all for your help! ----- Original Message ----- From: "Jin Guojun [VFFS]" To: "OxY" Cc: "Lucas Holt" ; "FreeBSD Mailing Lists" ; "Arne Woerner" Sent: Monday, March 27, 2006 5:51 AM Subject: Re: packet drop with intel gigabit / marwell gigabit > OxY wrote: > >> what kind of details should i attach? to analyze the problem? > > Assume that you have process A to cause process B dropping packets: > > Step (1): > Run B only -- what is the maximum through without packet drop? > what is the CPU utilization? > what type of traffic (protocol -- TCP, UDP, etc.) does B > use? > does B have other I/O? If so, how much is the I/O > bandwidth used? > > Step (2): > reRun B and involving A gradually (increasing A's wieght) till B drops > packets. > provide all above statistics for A and B at this point (where drop > starts). > > One thing I missed in your original post what protocol drops packet -- > TCP or UDP? > > -Jin