How to debug long-lived D program memory usage?

[ikod]

On Wednesday, 17 April 2019 at 16:27:02 UTC, Adam D. Ruppe wrote:
> D programs are a vital part of my home computer infrastructure. 
> I run some 60 D processes at almost any time.... and have 
> recently been running out of memory.

I usually run program under valgrind in this case. Though it will 
not help you to debug GC problems, but will cut off memory leaked 
malloc-s.