The following patch (for 2.4.20 -- should work with all kernels
above 2.4.17) implements TCP Zero Copy for normal (writing)
socket operations on memory mapped files.

This is a major speedup for the TCP/IP stack (depending on the size
of the file more than 100% more throughput) and makes sendfile(2)
nearly useless.

BTW: When I did a (loopback) benchmark against my very own HTTP-
Server it outperformed TUX by roughly 6%. With logging disabled
by roughly 20%.

Please CC any replies to me, as I'm not subscribed to this list.