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

> the second is bytes. The number of fonts is also curious.
>
>   PVEC_FONT                                90422        10868392
>
> But all seem to be GC'd eventually.

FWIW, I'm attaching the Lisp that I currently use to display this stuff.
Something hacked together. M-x igc-stats displays a buffer in which one
can take two snapshots of igc-info, display them, sompare them, trigger
GC and so on.

The PVEC_FONT stuff is impressive :-)