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Date: Mon, 9 May 2005 09:44:26 -0500
From: Greg 'groggy' Lehey <grog@FreeBSD.org>
To: "M. Parsons" <mrparsons@gmail.com>
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Subject: Re: Is this a high interrupt rate for nics?
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On Sunday,  8 May 2005 at  9:02:08 -0400, M. Parsons wrote:
> Freebsd-5.3 SMP Kernel. Polling enabled.
>
> bash-2.05b$ vmstat -i
> interrupt                          total       rate
> irq5: ep0                        2937064          1
> irq11: ed0                     298318862        165
> irq10: de0                     276544892        152
>
> Are those normal for ed0 and de0?  Compared to the ep0 nic of rate
> of 1 (although the ep0 nic is not used as much as the other two nics
> obviously).

Depends on what you mean by "normal".  You'll get one interrupt per
packet, and those rates are perfectly normal.  If you're not
transferring anything, you shouldn't be getting any interrupts.

Greg
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