[Codel] usage of 'count' in codel

[Eric Dumazet]

On Sun, 2012-05-06 at 11:25 -0700, Simon Barber wrote:
> I was thinking the same thing (implement sfq+codel), I'm happy to 
> refactor the codel code to be usable both standalone and with sfq, 
> unless Eric is already doing it. Another option would be pfifofast + 
> codel - perhaps a candidate for the default qdisc?

Yep, I am doing this factorization, a bit like we did for RED

But I am not sure its worth before stabilization.

I'll send a v8, with timing changed to use 1024 ns resolution to ease
things and reduce memory foot print.