dummynet dropping too many packets

rihad rihad at mail.ru
Sat Oct 17 14:02:16 UTC 2009


rihad wrote:
> Just rebooted with the "ifp->if_snd.ifq_drv_maxlen = 1024;" kernel, all 
> ok so far. There's currenlty only 1000 or so entries in the ipfw table 
> and around 350-400 net mbps load, so I'll wait a few hours for the 
> numbers to grow to >2000 and 460-480 respectively and see if the drops 
> still occur.
> 

I'm not sure of anything now... It's 7 p.m. here, and during this busy 
time of day in terms of network use there are 350-500 up to 600 drops 
per second at around 530-550 mbps net load. This is roughly equivalent 
to 2-7 mbps dropped on output. It might be better than before. Next 
thing I'll try is bce queue maxlen 1024 -> 2048, and HZ 2000 again 
"back" to 4000.


More information about the freebsd-net mailing list