From owner-freebsd-current@FreeBSD.ORG Sun Mar 7 15:42:53 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7785916A4CE for ; Sun, 7 Mar 2004 15:42:53 -0800 (PST) Received: from smtp.web.de (smtp05.web.de [217.72.192.209]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4205E43D1F for ; Sun, 7 Mar 2004 15:42:53 -0800 (PST) (envelope-from der_julian@web.de) Received: from [141.30.207.25] (helo=meta) by smtp.web.de with esmtp (WEB.DE 4.99 #614) id 1B07v2-00070f-00; Mon, 08 Mar 2004 00:42:52 +0100 To: Tony Frank References: <86smgktjzk.fsf@web.de> <20040307231859.GA95924@marvin.home.local> From: Julian Date: Mon, 08 Mar 2004 00:44:48 +0100 In-Reply-To: <20040307231859.GA95924@marvin.home.local> (Tony Frank's message of "Mon, 8 Mar 2004 10:18:59 +1100") Message-ID: <86brn8z0gf.fsf@web.de> User-Agent: Gnus/5.1002 (Gnus v5.10.2) XEmacs/21.4 (Reasonable Discussion, berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-WEBDE-TAG: W Sender: der_julian@web.de cc: current@freebsd.org Subject: Re: fxp0 generating lots of interrupts X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 07 Mar 2004 23:42:53 -0000 Tony Frank writes: > Hi there, > > On Sun, Mar 07, 2004 at 10:39:27PM +0100, Julian wrote: >> I just replaced my old network adaptor with another one and noticed >> that vmstat reports lots of interrupts: >> >> vmstat -i | grep fxp >> irq11: fxp0 1532367 394 >> >> Is this "normal"? > > I guess that depends what you consider to be 'lots'? Compared to my old RealTek-based card. > If you are using device polling, then I expect the interrupts to be quite > high. > If you are not using the interface for any network traffic and it is a > quiet network (ie not much broadcast traffic) then I expect the volume > to be high. The 394 was during "activity" of about 10 MBit/s. It's down to 200 at the moment and there is almost no network activity at the moment. > What makes you think you have 'lots' of interupts as opposed to 'normal level' ? I've only compared it to my old card. Perhaps I should not have done this, as the high interrupt frequency does not impact system performance in any noticeable way. Regards, -- Julian Stecklina Key-ID: 0xD65B2AB5 FA38 DCD3 00EC 97B8 6DD8 D7CC 35D8 8D0E D65B 2AB5 "I meant," said Iplsore bitterly, "what is there in this world that makes living worthwhile?" Death thought about it. "CATS," he said eventually, "CATS ARE NICE." - Terry Pratchett, Sourcery