On Wed, Jul 21, 2010 at 10:04:59AM +0900, Bruno Randolf wrote: > the difference. without tracing you can get 22Mbps, with tracing max 15Mbps > UDP thruput. If so, and it's not an i-cache effect, then something is wrong with the tracing subsystem. It's supposed to compile to something like if (tracing) { trace_callback(); } That is exactly what we have with the debug infrastructure, but the debug stuff is theoretically a bit worse since it tests for tracing inside the callback. Oh well, I guess I need to get my hands on one of these boards. -- Bob Copeland %% www.bobcopeland.com -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html