Packet loss with traffic shaper and routing

[John-Mark Gurney]

tpeixoto at widesoft.com.br wrote this message on Wed, May 03, 2006 at 22:40 -0300:
> Anyway, I am very curious about the result of test 2. Why do the pipes 
> have influence on system performance if there is nothing passing through 
> them?

It looks like each tick all the pipes are scanned...  In dummynet:
    /* Sweep pipes trying to expire idle flow_queues. */
    for (i = 0; i < HASHSIZE; i++)
        SLIST_FOREACH(pipe, &pipehash[i], next)

That bit of code should probably be run less often...

-- 
  John-Mark Gurney				Voice: +1 415 225 5579

     "All that I will do, has been done, All that I have, has not."