Re: MPS: dangling markers

[Gerd Möllmann]

Gerd Möllmann <gerd.moellmann@gmail.com> writes:

> Gerd Möllmann <gerd.moellmann@gmail.com> writes:
>
>> And that makes sense. I'll try tomorrow to add something to igc that
>> Ihor can tell us how many markers there are that are allocated in the
>> place Eli showed.
>
> Can't sleep (football), so:
>
> I ended up adding an integer parameter to build_marker, which is
> different for each call site, because the markers built in marker.c
> which Eli pointed to were not the problem, at least for what I did.
>
> I start Emacs, M-x igc-stats which let's me see the number of markers.
> Then repeated g to see the number of markers go up. What I see is a
> rapid growth in markers, by the hundreds each time I refresh, and the
> histogram looks like this
>
>   [0 12 3039 0 8 9 19 0 0 0 47365 8 13 0 0 0 0 0 0 0 2618 2618 0 0 0 0 0
>    0 0 0]
>
> And 10 is
>
>   DEFUN ("point-marker", Fpoint_marker, Spoint_marker, 0, 0, 0,
>          doc: /* Return value of point, as a marker object.  */)
>     (void)
>   {
>     return build_marker (current_buffer, PT, PT_BYTE, 10);
>   }
>
> Don't know who calls that, but it absolutely dominates.

Pushed to scratch/igc. Use build-marker-counts to get the numbers.