quoted

Personally, I hate trying to count long strings digits by eyeball...

Maybe something like this work for everyone then?:

160432128 (153MiB)     mm/slub.c:1826 module:slub func:alloc_slab_page

That would be even harder to parse.

This one liner should converts bytes to human readable size:
sort -rn /proc/allocinfo | numfmt --to=iec

Also, a "alloctop" script that would auto-update the current top
allocators would be useful to put in tools/mm/

Pasha