--- "David S. Miller" <davem@redhat.com> wrote: > 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. > - David, Does that mean there is no processing at the reciever too?? (for 0 checksum transmitted for UDP) sai __________________________________ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com - : 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
