In article <JCEFIMMPGNNGFPMJJKINIEMJCDAA.jros@ece.uci.edu> you wrote: > What i am wondering is how come we only get a few percentage improvement in > throughput. Theoretically, since 64KB/1.5KB ~= 40, we should get a > throughput improvement of 40 times. You send the same amount of data, you only send it in multiple junks instead of one. So the Overhead is only header*40bytes more and 40times*lattencyofdma. This is far less than factor 40. Greetings Bernd - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html