I did a comparison test of IPV4 and IPV6 using 2.4.17 kernel for IPV4 and 2.4.17 kernel+USAGI-linux24-s20020415-2.4.17.diff patch running netperf3, tcp_stream 1 adapter, 2 adapters test on UNI, SMP kernels using a 2-way machine. The test setup/results/profile can be found at: http://www-124.ibm.com/developerworks/opensource/linuxperf/netperf/results/may_02/netperf3_ipv6_2.4.17resutls.htm Regards, Mala Mala Anand IBM Linux Technology Center - Kernel Performance E-mail:manand@us.ibm.com http://www-124.ibm.com/developerworks/opensource/linuxperf http://www-124.ibm.com/developerworks/projects/linuxperf Phone:838-8088; Tie-line:678-8088 - : 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