Re: performance

[P@draigBrady.com]

P@draigBrady.com wrote:
> Hi,
> 
> I'm testing netfilter performance here on
> PIII 1.2GHz based systems. With default
> kernel configuration, netfilter is able
> to process 85,000 pps with 125 rules (all
> rules matching).
> 
> Note the application is just counting.
> There is no transmitting/forwarding.
> 
> Also note the nics are e100.
> 
> So my simple question are there any
> tips in increasing the performance?
> Hmm actually the performance seems
> optimal? is it only taking 9 instructions
> per match? 1.2*10^9/(85000*1500) = 9

I knew that couldn't be right.
That was tested on a dual 1.2GHz,
so that should be approx:
2*10^9/(85000*125) = 188 instructions per match.

I guess that's pretty optimal?
The best I could hope for after that
would be to increase the rx packet
buffer space so as to handle higher
spikes than this.

cheers,
Pádraig.