Re: MPS: dangling markers

[Eli Zaretskii]

> From: Gerd Möllmann <gerd.moellmann@gmail.com>
> Cc: Eli Zaretskii <eliz@gnu.org>,  monnier@iro.umontreal.ca,
>  emacs-devel@gnu.org,  eller.helmut@gmail.com
> Date: Sat, 29 Jun 2024 23:50:01 +0200
> 
> Ihor Radchenko <yantar92@posteo.net> writes:
> 
> >>> Sorry, I've asked not precisely enough. Do we know the percentage of
> >>> markers generated by that code? I mean, of the 500K markers Ihor sees,
> >>> how many could be spare?
> >>
> >> I don't know, but a simple instrumentation (or even just a suitably
> >> defined breakpoint) will tell.
> >
> > I looked into this. And it is near 0%. The overwhelming majority of the
> > markers are created by something else. I mostly saw save_excursion_save
> > in backtraces - it creates transient markers to save point position.
> 
> Jup, it's point-marker for me. No idea who calls that so often.

Org, who else?  Look at the backtrace.