kernel coder wrote:
hi,
I was trying to measure the UDP reception speed on my borad which
has MIPS 4kc processor with 133 MHZ speed.I was transfering 10mb file
from intel pentium 4 machine to MIPS board,but the recieved file was
only 900kB.
UDP was not designed with reliability in mind -- it really isn't meant
for sending a 10 meg file without a packet loss.
When i further investigated the problem ,i came to know that the user
application was not getting enough opportunities to get data from
socket queue which caused almost 80% of packets to be dropped as
socket queue had no free space.
(Among other sources) I'm pretty sure this behaviour was discussed in:
Unix Network Programming, Vol. 1: The Sockets Networking API, Third Edition
(Something like page 257.)
I don't know if there is anything else going on with the kernel but...
Brett
