What's the status of parallel netisr?

Kris Kennaway kris at FreeBSD.org
Tue Sep 16 19:27:12 UTC 2008


Jian Qiu wrote:
> Interesting.
> 
> I did a test on local UDP throughput.
> 
> I was surprised to find out the performance with a SMP kernel was
> worse than UP. (~74MB/s v.s. 96 MB/s).
> 
> I had though parallel netisr might be a solution.

Make sure you are testing with either 8.0 or 7.1 (or late 7.0-STABLE), 
i.e. after the fixes to improve UDP performance on SMP systems.

Kris



More information about the freebsd-net mailing list