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Date: Sun, 16 Jul 2000 11:36:14 +0930
From: Greg Lehey <grog@lemis.com>
To: "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net>
Cc: Gregory Bond <gnb@itga.com.au>, bgoering@ilsmart.com,
	stable@FreeBSD.ORG
Subject: Re: Hardware Info
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On Friday, 14 July 2000 at 11:55:23 -0700, Rodney W. Grimes wrote:
>>> Is there a way to get a map of the ports, irq, dma in use on a FreeBSD
>>> system?
>>
>> For IRQs, use systat -vm or vmstat -i.
>
> Actually that works poorly in todays world of shared IRQ resources:
>
> rgrimes {104}% vmstat -i
> dc0 irq15     5189147       71
> dc1 irq14     6570342       90
> mux irq11    20937873      289
> mux irq10    25513282      352
>
> Now just what is on irq10 and 11???

To expand on that, "mux" means that more than one device is connected
to the irq, and the interrupts are handled by a "multiplexer".  This
could change in the near future with interrupt threads.

Greg
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