How can i track the GC when it's runing?

[cym13 via Digitalmars-d-learn]

On Monday, 25 January 2016 at 09:33:15 UTC, Dsby wrote:
> I want to know How can i track the GC when it's runing?
> And Which algorithm is  D's GC used,only Scan-Mark?

Something that isn't on Garry's link: if using dmd you can pass 
the "-profile=gc" flag which will do the GC configuration so that 
you get a summary of all allocations at the end of the program.