On Sun, Oct 04, 2009 at 06:47:23PM +0500, rihad wrote:

> sysctls:
> kern.ipc.nmbclusters=50000
> net.inet.ip.dummynet.io_fast=1

I guess you should also try to increase pipes length:

net.inet.ip.dummynet.hash_size=65536
net.inet.ip.dummynet.pipe_slot_limit=1000

And reconfigure pipes like this:

ipfw pipe NNN config bw ... queue 1000

And default 'taildrop' policy of dummynet pipes may be guilty,
you'd use GRED to prevent excessive drops.

Eugene Grosbein
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