On 2/1/06, Ben Greear wrote: > Ashutosh Naik wrote: > > Now, I assume that on Gigabit ethernet, I should be getting Line Rate, > > which is around 220 MBps. Even the CPU is not getting max-ed out here > > and I am at a loss to understand this behaviour. > > Make sure you are running 64-bit 100+Mhz PCI, otherwise you will not > get line speed. ethtool -d [device] > may get that info for you. Thanks for that Ben. I now used a 64 bit,133 MHz PCI-X on both machines and I got around 180 MBps, (86259.48 + 95164.90 ), which is still a decent way away from Line speed. I think PCI is not a bottleneck now, although I could be wrong. What could I be missing, and has anybody seen line speed ( 220 MBps ) with e1000 ? Regards and Thanks Ashutosh ps - Attaching my ettcp log