From owner-freebsd-questions Thu Mar 28 21:01:41 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id VAA12985 for questions-outgoing; Thu, 28 Mar 1996 21:01:41 -0800 (PST) Received: from jbrann.dialup.access.net (jbrann.dialup.access.net [166.84.193.118]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id VAA12963 Thu, 28 Mar 1996 21:01:30 -0800 (PST) Received: (from jbrann@localhost) by jbrann.dialup.access.net (8.6.12/8.6.12) id AAA01775; Fri, 29 Mar 1996 00:00:11 -0500 Message-Id: <199603290500.AAA01775@jbrann.dialup.access.net> Subject: Re: iijppp problems - related to interrupts? To: nate@sri.MT.net (Nate Williams) Date: Fri, 29 Mar 1996 00:00:10 -0500 (EST) Cc: gpalmer@FreeBSD.ORG (Gary Palmer), questions@FreeBSD.ORG, hackers@FreeBSD.ORG In-Reply-To: <199603281650.JAA01790@rocky.sri.MT.net> from Nate Williams at "Mar 28, 96 09:50:33 am" From: John Brann Reply-To: John Brann Organisation: Not while I'm at home X-Mailer: ELM [version 2.4ME+ PL13 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-questions@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Nate Williams wrote... > > > > Is the interrupt level extraordinary? > > > > > The easiest way to check the instantaneous interrupt rate is 'systat > -vmstat'. If anyone knows a different way let me know. > > > Nate > Thanks for the hint, Nate. Now I have something really odd to report. My system has a generic async / floppy / IDE card (with IDE disabled by jumper). sio0 has my Logitech serial mouse attached, and si01 is connected to the modem. Running systat -vmstat with ppp unconnected I see the following sorts of numbers for interrupts Interrupts 264 total 100 clk0 irq0 128 rtc0 irq8 fdc0 irq6 sc0 irq1 36 sio0 irq4 sio1 irq3 ed0 irq5 I am running X, so some activity on sio0 is expected. Now, when I repeat the systat -vmstat, while ppp is connected and I'm downloading a file, I see this... Interrupts 4658 total 100 clk0 irq0 128 rtc0 irq8 fdc0 irq6 sc0 irq1 4312 sio0 irq4 118 sio1 irq3 ed0 irq5 The interrupts for sio1 (with the modem busy) seems sensible, but what has happened to my mouse? If the link goes quiet, the mouse port interrupts die away, but even pinging my ISP will put the number up to 800 per sec. There doesn't appear to be anything crazy in my setup, does anyone know what might cause this? - Bogus hardware? John -- Beavis and Butt-Head; Vladimir and Estragon for the '90s. finger jbrann@panix.com for pgp public key