> Are you running -current? There have been some massive tweaks in networking performance in -current. Try out and report back.
We were running 4.7 amd64 version (GENERIC.MP). Also tried the single processor version. Intel Pro/1000 MT cards were used. I should mention that we had a large number of virtual interfaces (300+) for routing traffic among these VLANs. So maybe this was the cause. Eric