From: sai narasimhamurthy <sai_narasi@yahoo.com> Date: Tue, 1 Jul 2003 19:59:59 -0700 (PDT) I have managed to send UDP packets with the checksum filed set to "0". Inspite of that I dont seem to be getting any performance improvements at the recieving side.(I am using Netperf). The checksum is for free during the copy of the data from userspace. The copy is still occuring from userspace during the write()/sendmsg() calls even once you've turned off the checksums, and that's where most of the overhead is from. - : 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