Is this a high interrupt rate for nics?
Kenneth Culver
culverk at sweetdreamsracing.biz
Mon May 9 08:58:26 PDT 2005
Quoting Greg 'groggy' Lehey <grog at FreeBSD.org>:
> 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.
>
These are actually a bit low in my experience for full-speed 100 Mbit/sec
traffic... I'll go up to the 2000-3000 range at full 100 Mbit speeds.
Ken
More information about the freebsd-questions
mailing list