dummynet = local taffic > 100ms - help!
cswiger at mac.com
Tue Feb 10 04:08:23 PST 2004
Bjorn Eikeland wrote:
[ ... ]
> DUMMYNET and HZ=10000 is in the kernel.
> Any suggestions what can be causing this? (I've only got the one nic,
> and use a adsl router for internett)
I seem to recall some issues with setting HZ very fast, in that it breaks the
uniqueness assumptions made by TCP sequence generation if HZ > 1000. Dummynet
does want better than the standard 10ms granularity (HZ=100), so perhaps you
might try HZ=1000 and see whether that makes any difference.
You might also consider increasing the queue length of your pipes when using
prioriziation--- are you seeing packets being dropped?
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