Stephen, Thanks for the response. My reply follows: > I assume this is 64-bit/66Mhz PCI. Actually, it's a PCI-X @ 133Mhz. > Did you try affiniting both eth's to same CPU. Yep, I tried with both on a single CPU, but the problem is that the eth interfaces generate interrupts, so you need to spread the load between the two. Of course, NAPI helps. > Are you always forwarding from/to same MAC address. Yes, same MAC. > Then figure out where they are being dropped > (in board, e1000 driver ring, or bridge). I would love to know how to better determine this. It's a little opaque to me at the moment. Where can I determine this? I've been using /proc/net/dev to see the packet numbers, but don't know how to determine where the packets are dropped. If you could shed light here that would be great! > oprofile output might help to identify CPU hot spots. I'll check it out. Never used oprofile before. -- Stephen Hemminger <shemminger@xxxxxxxx>
