Subject: Re: interrupt rate from a NIC
To: <>
From: Ignatios Souvatzis <ignatios@theory.cs.uni-bonn.de>
List: tech-kern
Date: 03/06/2003 11:19:51
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On Thu, Mar 06, 2003 at 08:20:45AM +0000, Kamal R Prasad wrote:
>  I would like information about the rate at which interrupts can come into
> the system(a Pentium 4 for example) from a  NIC.

vmstat -i;
and first read /var/run/dmesg.boot to find out which interupt that nic=20
used.=20

> can it be ever so high
> that the bottom half has only sufficient time to enqueue the packets but
> not to process them (because of the handler getting invoked so often).?

That's not impossible - but you would have to cite exact machine
configuration, CPU, board, driver and OS version to say more.

Regards,
	-is

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