I think my real question was is there anyone has gotten media speed network throughput on any Gigabit Ethernet Card with normal MTU? Thanks Shirley Ma IBM Linux Technology Center Shirley Ma/Beaverton/IBM@IBMUS@vger.kernel.org on 08/24/2001 11:16:12 AM Sent by: linux-net-owner@vger.kernel.org To: linux-net@vger.kernel.org cc: Shirley Ma/Beaverton/IBM@IBMUS Subject: why TCP_STREAM test throughput can't reach the media speed for acenic gigabit ethernet card with normal Compared to jumbo frame MTU=9000 bytes, Acenic Gigabit Ethernet Card can almost reach the media speed for TCP_STREAM throughput test; same test result for nomal MTU=1500 bytes is about 650Mbits/s. The PACKET_STREAM test result for MTU=1500bytes is pretty good too, it is around 900Mbits/s. Theorically TCP_STREAM throughput test for MTU=1500 bytes should be above 900Mbits/s. Does anyone has any idea why not? Thanks Shirley Ma IBM Linux Technology Center - : 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 - : 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