[Cake] small cake_hash optimization?

[Pete Heist]

> On Nov 23, 2017, at 10:30 AM, Pete Heist <peteheist at gmail.com> wrote:
> 
> Thanks for the overhead info. I used that in my latest tests. That makes me wonder if those overheads could be defaulted when Cake knows Ethernet is being used with rate limiting? I know a goal is to make cake easier to configure so such things are examples of what people are likely to miss.

BTW I realize there’s no way cake can know what the overheads should actually be, just to make sure the defaults are sensible I guess. I know overheads are not an easy thing.