From owner-freebsd-questions@FreeBSD.ORG Fri Aug 19 09:55:56 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 58DDC16A41F for ; Fri, 19 Aug 2005 09:55:56 +0000 (GMT) (envelope-from odiebla@gmail.com) Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.201]) by mx1.FreeBSD.org (Postfix) with ESMTP id EBE7C43D55 for ; Fri, 19 Aug 2005 09:55:55 +0000 (GMT) (envelope-from odiebla@gmail.com) Received: by wproxy.gmail.com with SMTP id i22so490331wra for ; Fri, 19 Aug 2005 02:55:55 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=Y103i1oSsQvGTJd/taVEAeJS8Ctxq7pFyOnd7IQx6XfC72w907VchfPQ7EIH782eQyHXEofw4sGqtJsIb2Hoe9eoWppCCI39yPLGhx+PhwbPhDqHv43e8tjbtvwJm4UVZ7URnZ+4J/TtWukrhuj/lMrozlTBuvPmE1xUy0AeXXU= Received: by 10.54.107.20 with SMTP id f20mr1753407wrc; Fri, 19 Aug 2005 02:55:55 -0700 (PDT) Received: by 10.54.102.2 with HTTP; Fri, 19 Aug 2005 02:55:55 -0700 (PDT) Message-ID: Date: Fri, 19 Aug 2005 11:55:55 +0200 From: Arjan van der Oest To: freebsd-questions@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Subject: increasing latency on idle box with ASUS P4B533VM board X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Aug 2005 09:55:56 -0000 Hi, I've build a new P4 box (1.8Ghz, 512MB mem) based upon a ASUS P4B533VM motherboard. This board has an Intel 845G chipset and onboard 10/100 mbit/s LAN (fxp driver). When connected directly to a gateway (in my case an Extreme BD10k) I observe the following behaviour: a ping to the gateway starts around 1ms and slowly increases in steps of .1 or .2ms to around 10ms. Then it suddenly drops back to 1ms and the process starts all over again. I've tried a different NIC (3com, xl driver), new cabling, new switchport and all gives me the same result. My other labbox (a AMD 2000 XP+ with 3com PCI nic) connected to the same router is showing normal latency. This gives me the feeling it's some sort of timing issue on the P4's motherboard itself. Has anyone seen this before? I've searched the archives and found little on this topic. Any tips/hints where I can seach for further clues? Thanks, Arjan