pprof DLang needs?

[welkam]

I use perf:
perf record -g <program_name>
then
perf report -g 'graph,0.5,caller'

And for memory usage I use heaptrack. The new tool you propose 
needs to bring something new to be worth using over the others 
and I dont think rewriting tools that already exist is worth it. 
Better improve existing ones. The only thing my mentioned tools 
are missing is D symbol demangling.