From owner-freebsd-performance@FreeBSD.ORG Tue Dec 27 07:56:08 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 CA45D16A41F for ; Tue, 27 Dec 2005 07:56:08 +0000 (GMT) (envelope-from mihai@duras.ro) Received: from mail.duras.ro (mail.duras.ro [86.105.56.133]) by mx1.FreeBSD.org (Postfix) with ESMTP id C84FA43D5C for ; Tue, 27 Dec 2005 07:56:07 +0000 (GMT) (envelope-from mihai@duras.ro) Received: from localhost (localhost [127.0.0.1]) by mail.duras.ro (Postfix) with ESMTP id 84BC97CBEB; Tue, 27 Dec 2005 09:56:06 +0200 (EET) Received: from mail.duras.ro ([127.0.0.1]) by localhost (mail [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 13118-03; Tue, 27 Dec 2005 09:56:04 +0200 (EET) Received: from [86.105.56.194] (ma.plimb.cu.barca.prin.padure.ro [86.105.56.194]) by mail.duras.ro (Postfix) with ESMTP id 6F12722850; Tue, 27 Dec 2005 09:56:04 +0200 (EET) Message-ID: <43B0F32E.7070905@duras.ro> Date: Tue, 27 Dec 2005 09:54:22 +0200 From: Mihai Tanasescu User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Mike Jakubik References: <43B05F1E.3060908@duras.ro> <43B095C7.4090000@rogers.com> In-Reply-To: <43B095C7.4090000@rogers.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new-20030616-p10 (RedHat) at duras.ro Cc: freebsd-performance@freebsd.org Subject: Re: Device polling heavy traffic 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: Tue, 27 Dec 2005 07:56:08 -0000 Hello, Sorry for omitting the esential details about my system. You can find my dmesg at: http://pastebin.com/479977 I'm running: FreeBSD 6.0-RELEASE-p1 Here is my kernel configuration: http://pastebin.com/479981 I wasn't there when the panic happened, I just noticed the load average was increasing (with polling disabled); and it kept increasing until the machine become unresponsive. After 1-2 minutes I observed it had rebooted itself. Now I have polling enabled on it, I have kernel.idle.poll set and a latency of 1-5 ms inside the local network. But on the 3 links I have spoken of, altough they are not full I have between 1-5 ms and 20-30 ms (when the number of packets passive through the machine increases). Mike Jakubik wrote: > Mihai Tanasescu wrote: > >> The problem: >> If I ping this machine or anything that is routed through it I get >> response times of 10-15-30 ms and once in 30 seconds a packet is lost. >> >> If I disable kernel.polling.enable then I get response times of 1-2-3 >> ms but I also get a lot of interrupts and a kernel panic after about >> 20 min. > > > You should not be getting a panic, unless you have bad hardware. Can > you provide more details of the panic? Also, provide the version of > freebsd, any custom kernel configuration, and attach output of dmesg. >