From owner-freebsd-mobile@FreeBSD.ORG Thu Sep 22 11:27:42 2005 Return-Path: X-Original-To: freebsd-mobile@freebsd.org Delivered-To: freebsd-mobile@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 38B8F16A41F for ; Thu, 22 Sep 2005 11:27:42 +0000 (GMT) (envelope-from joao.barros@gmail.com) Received: from xproxy.gmail.com (xproxy.gmail.com [66.249.82.204]) by mx1.FreeBSD.org (Postfix) with ESMTP id B370443D45 for ; Thu, 22 Sep 2005 11:27:39 +0000 (GMT) (envelope-from joao.barros@gmail.com) Received: by xproxy.gmail.com with SMTP id t14so267531wxc for ; Thu, 22 Sep 2005 04:27:37 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=fmm2a/PhV2lfO8JdNXHkFlaP04cQjNkqAMYSJ/PmHCJGyesIAiNtlSw5GvPW2XgEW4l53VcIE7SmJNl/Y6uU1OrFQmUEDyfgfzHHlW9/sDuit6Q4TkWhvsjh1j93582DpSyaUHDjU+HSVae7qqavcSA3VCwe7eQg/vRySSWPpwk= Received: by 10.70.22.8 with SMTP id 8mr225290wxv; Thu, 22 Sep 2005 04:27:36 -0700 (PDT) Received: by 10.70.10.5 with HTTP; Thu, 22 Sep 2005 04:27:36 -0700 (PDT) Message-ID: <70e8236f050922042731f06600@mail.gmail.com> Date: Thu, 22 Sep 2005 12:27:36 +0100 From: Joao Barros To: "Peter D. Quilty" In-Reply-To: <1127387609.1092.2.camel@pdq-laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <1127259847.1266.101.camel@pdq-laptop> <20050921080126.GK40237@cirb503493.alcatel.com.au> <1127387609.1092.2.camel@pdq-laptop> Cc: Peter Jeremy , freebsd-stable@freebsd.org, freebsd-mobile@freebsd.org Subject: Re: High interrupts w/ Cisco 350 card X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Joao Barros List-Id: Mobile computing with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Sep 2005 11:27:42 -0000 On 9/22/05, Peter D. Quilty wrote: > On Wed, 2005-09-21 at 18:01 +1000, Peter Jeremy wrote: > > > On Tue, 2005-Sep-20 19:44:07 -0400, Peter D. Quilty wrote: > > >I'm running 5.4-RELEASE-p6 on a Toshiba Tecra M2 laptop. My network > > >card is a Cisco 350 PCMCIA card. I'm experiencing a very high rate of > > >interrupts during heavy network traffic. > > > > Not quite. "vmstat -i" reports 173 interrupts/sec. That's not high. > > "systat -iostat" shows a ludicrously high interrupt load though. > > > > I notice that almost all the hardware on your laptop maps to irq 11 - > > that's undesirable. Can you convince your BIOS to use different > > interrupt mappings? > > > > No, the PCI bus is hardcoded to use only irqs 10 & 11. The video card > uses 10 and everything else shares 11. > > > > > This Cisco card works fine in every other laptop I have. > > > > What OS? > > > > All are running FreeBSD 5.4-RELEASE. > > > > > I suspect it might be a cardbus problem, but I don't > > >know how to resolve it or troubleshoot it any further. > > > > The PCCard bus is fairly atrocious (basically ISA) but isn't that bad. > > I can get roughly wire speed from a 10baseT NIC without serious CPU > > strain on a P-233 laptop. > > > > Have you tried anything other that FreeBSD 5.4 on your Tecra? > > > > No, I haven't. It is my primary laptop and I would prefer not to have > to load another OS merely for testing. > > > > >interrupt total rate > > ... > > >irq11: cbb0 cbb1+++ 6773905 173 > > ... > > > /0 /10 /20 /30 /40 /50 /60 /70 /80 /90 /100 > > >cpu user|XXXXX > > > nice| > > > system|X > > >interrupt|XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX > > > idle|XXX > > ... > I also have an Cisco Aironet 350 and the only time I had such an issue was connecting to a WPA enabled AP and a recent (couple of months) firmware update from Cisco corrected this issue. Given that you're using 5.4 and WPA is only coming out in 6.0 I know this is a long shot but I would try updating the firmware of the card. Heck, every update I do gives me more speed and stability :) -- Joao Barros