igb dual-port adapter 1200Mbps limit - what to tune?

[Ivan Voras]

On 11/10/10 12:04, Eugene Perevyazko wrote:

> CPU is E5620 at 2.4GHz, 8 cores, irqs bound to different cores skipping HT ones.

Unless you need the CPU cores for other tasks on the server, they won't 
help you with network throughput here. Faster but fewer cores might.

> Tried 2 queues and 1 queue per iface, neither hitting cpu limit.

Are you sure you are not hitting the CPU limit on individual cores? Have 
you tried running "top -H -S"?