@KOM:
Sorry, I think I had it backwards. If you have high interrupts, try enabling polling to see if it calms down somewhat.
I enabled it and the load didn't move too much in either direction. Thank you for the suggestion.
@heper:
i personally haven't had much luck by enabling polling. it just slowed things down in my case.
have you tried some of the tuning tips here? http://bsdrp.net/documentation/examples/forwarding_performance_lab_of_a_hp_proliant_dl360p_gen8_with_10-gigabit_with_10-gigabit_chelsio_t540-cr
i don't own 10gbe equipment, but i don't think it can hurt to try.
I will have to take a look at this. Thanks for providing it.
On another note, the load appears to be around 5-6 now. I believe this is related to lower usage. Towards the end of the business day our usage tapers off significantly, but we only do ~300 Mbs at peak anyways.