Andy Jones wrote:
What happens is as the TCP window grows larger (about 3-4MB), the sender
spends most of its time processing interrupts (80-90% as reported by top)
and throughput peaks at about 300Mbps. I've dug into the dummynet code and
I've found that a large amount of time is spent in the
Andy:
Hi, you must be working with Injong :-)
At one point I was playing with dummynet in satellite networks.
One of the KEY problems I found is that the number of
packets you can have in queue, limited to 100, was not
nearly enough. This was (at the time) a hardcoded parameter
inside both the i
Hi,
I'm a researcher at the University of North Carolina trying to simulate
certain link characteristics using dummynet pipes in ipfw. Our end goal is
to thoroughly test high speed TCP variants in our experimental network in a
wide range of situations (which includes varying the delay from 1ms t
