How to debug long-lived D program memory usage?

[Patrick Schluter]

On Thursday, 18 April 2019 at 12:00:10 UTC, ikod wrote:
> 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.

Even valgrind tool=massif ?