These are the results of UDP Emitter Signal Characterization using CBR traffic with a patched version of thrulay by Huadong Liu. I disable any coalescing on the Intel NICs (basically I manually load the latest Intel driver for Linux using the following parameters: "TxAbsIntDelay=0 TxIntDelay=0 RxAbsIntDelay=0 RxIntDelay=0 InterruptThrottleRate=0".