Re: Optimizing performance of buffer markers

[Ihor Radchenko]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> Landing that branch is indeed a very Good Thing, but AFAIU this
>> discussion revealed that Org adds quite a few markers of its own when
>> it parses the buffer, because it wants to track the positions of some
>> syntactic elements of the buffer.
>
> That's quite unusual, tho, and I suspect that Org's code could be
> changed to use overlays instead (after all, we could define an
> "efficient marker" as (make-overlay POS POS)).

Using overlays will put extra load on display engine, on top of the
performance related to pure markers.