network performance

[gnn at freebsd.org]

At Wed, 30 Jan 2008 19:13:07 +0200,
Stefan Lambrev wrote:
> 
> Greetings,
> 
> After playing with many settings and testing various configuration, now 
> I'm able to to receive on bridge more then 800,000 packets/s
> without errors, which is amazing!
> Unfortunately the server behind bridge can't handle more then 250,000 
> packets/s
> Please advise how I can increase those limits?
> Is is possible?
> 
> The servers are with 82573E Gigabit Ethernet Controller (quad port)
> So far I tried with lagg and ng_fec, but with them I see more problems
> then benefits :)
> Tried polling with kern.polling.user_frac from 5 to 95,
> different HZ, but nothing helped.

Increase the size of your socket buffers.

Increase the amount of mbufs in the system.

Best,
George