Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%

[Stefan Monnier]

> , it takes 27.9s.  So it would seem the cost of having a jit-lock
> function returning a jit-lock-bounds structure when it's not the first
> function is high.  That's using the strategy of a full refontification of
> the "extra" regions of the buffer returned in that structure.

How does it compare to the performance with the old/current
jit-lock code?

> Maybe that strategy is not optimal.

I think it leads to many calls to the client functions with small
regions, which for font-lock at least is not optimal indeed.

Maybe to speed things up, another option is to grow the chunk size
a bit.


        Stefan