dmd memory usage

[Max Haughton]

On Monday, 18 November 2019 at 00:20:12 UTC, Steven Schveighoffer 
wrote:
> I'm fighting some out of memory problems using DMD and some 
> super-template heavy code.
>
> I have ideas on how to improve the situation, but it involves 
> redesigning a large portion of the design. I want to do it 
> incrementally, but I need to see things improving.
>
> Is there a straightforward way to figure out how much memory 
> the compiler uses during compilation? I though maybe 
> /usr/bin/time, but I feel like I don't trust the output to be 
> the true max resident size to be what I'm looking for (or that 
> it's 100% accurate). Is there a sure-fire way to have DMD print 
> it's footprint?
>
> -Steve

Massif is good for this. ms_print will give you a graphical 
summary, and the data is human and machine readable.

The only setback being that massif can make the execution slower 
however I can't give exact numbers but it can be terrible.