From: Mintz, Yuval
> Sent: 30 January 2017 17:56
> > How many different implementations of 'ops->adjfreq' are there?
> > If there is only one you don't need an indirect call.
>
> There's only one implementation. But qed publishes its functions to
> qede [and other modules] by structs of operations and not by
> exporting symbols directly, and I don't see a reason to change that
> paradigm here.
> [Although I might be mistaken about that last bit]
If any of the functions are on 'hot paths' the cost of the indirect
call is likely to be measurable.
On a lot of cpus it will be a pipeline stall.
The double-indirect almost certainly generates a stall.
David
