Get program stats at run time

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On Thursday, 30 June 2016 at 21:56:57 UTC, Special opOps wrote:
> How can I get the program stats at run time such as minimum and 
> maximum amount of memory and cpu used, cpu architecture, os, 
> etc?

OS is compile-time constant. 
http://dlang.org/phobos/std_system.html#.os

Or do you look for something like detecting that windows 
application is ran actually in wine on some other operating 
system?

For memory and cpu usage detecting I wrote 
https://github.com/MyLittleRobo/resusage a while ago. Currently 
works only on Linux and Windows though.