Freebsd IP Forwarding performance (question, and some info) [7-stable, current, em, smp]

Paul paul at gtcomm.net
Sun Jun 29 23:24:52 UTC 2008


Yes it does but it seems to use a lot more of one cpu than the others so 
It's really not SMP.. Can I stop it from doing this with some setting?
Why can't there be 4 taskq's?

Also with full internet table I can't even do 100kpps without errors.. I 
don't get it :/  I could do 300kpps on a p3 and now I have a 3ghz xeon 
and 2.2ghz opteron  brand new hardware and can barely get more than 
that.. Doesn't make sense to me.


Ingo Flaschberger wrote:
> Dear Paul,
>
> does the em-task jump from cpu to cpu?
> (mp-systems are not really better for forwarding performance).
>
> try once with only 1 cpu.
>
> bye,
>     Ingo
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