From owner-freebsd-performance@FreeBSD.ORG Sun Mar 19 12:56:35 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 05D0C16A401 for ; Sun, 19 Mar 2006 12:56:35 +0000 (UTC) (envelope-from sten@blinkenlights.nl) Received: from ford.blinkenlights.nl (ford.blinkenlights.nl [213.204.211.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8452443D46 for ; Sun, 19 Mar 2006 12:56:34 +0000 (GMT) (envelope-from sten@blinkenlights.nl) Received: from tea.blinkenlights.nl (tea.blinkenlights.nl [192.168.1.21]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ford.blinkenlights.nl (Postfix) with ESMTP id 9638CBDBC; Sun, 19 Mar 2006 13:56:31 +0100 (CET) Received: by tea.blinkenlights.nl (Postfix, from userid 101) id 2A178276; Sun, 19 Mar 2006 13:56:31 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by tea.blinkenlights.nl (Postfix) with ESMTP id 0FDD918F; Sun, 19 Mar 2006 13:56:31 +0100 (CET) Date: Sun, 19 Mar 2006 13:56:30 +0100 (CET) From: Sten Spans To: Arne Woerner In-Reply-To: <20060319124801.1717.qmail@web30308.mail.mud.yahoo.com> Message-ID: References: <20060319124801.1717.qmail@web30308.mail.mud.yahoo.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-performance@freebsd.org, OxY 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: Sun, 19 Mar 2006 12:56:35 -0000 On Sun, 19 Mar 2006, Arne Woerner wrote: > --- OxY wrote: >> but the udp drop came out (10-15%) when i stopped apache (all >> tcp traffic) and initiated a local disk-to-disk file copy to > make some >> load. >> > Ok... That lets my idea look wrong... :-)) > > Then it might be the main board like somebody else wrote some > minutes ago (maybe ur main board cannot move so much data so > quickly)? > My Athlon XP 2400+ can do more than 2000Mbit/sec, when I do > dd if=/dev/zero of=/dev/null bs=1m count=1000 > Maybe u want to try the same on ur "patient"? The main thing to look out for is the pci-bus. A normal 33mhz/64bits pci bus can only do about 100 megabyte, if storage and and network are both connected to this bus contention will happen. (70mb ide, and 500mbit network just won't fit) Which is why most newer motherboards have dedicated paths for network and sata. This is also why serverboards have faster/wider and multiple pci buses, and why pci-e has dedicated paths for each slot. -- Sten Spans "There is a crack in everything, that's how the light gets in." Leonard Cohen - Anthem