Date: Fri, 29 Mar 1996 00:00:10 -0500 (EST) From: John Brann <jbrann@panix.com> To: nate@sri.MT.net (Nate Williams) Cc: gpalmer@FreeBSD.ORG (Gary Palmer), questions@FreeBSD.ORG, hackers@FreeBSD.ORG Subject: Re: iijppp problems - related to interrupts? Message-ID: <199603290500.AAA01775@jbrann.dialup.access.net> In-Reply-To: <199603281650.JAA01790@rocky.sri.MT.net> from Nate Williams at "Mar 28, 96 09:50:33 am"
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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
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