Add more memory-use printouts

[opotowsky]

Add some memory-use print-outs to extra or debug levels.

This would help with memory profiling for some upcoming work.

Alternatively, take a look at memory profiling and add more printouts to that.

[john-science]

Have you used ARMI's MemoryProfiler?

armi/armi/bookkeeping/memoryProfiler.py

Line 71 in 35a0c87

class MemoryProfiler(interfaces.Interface):

One thing I note, that tool (and your above idea) both require the dependency psutil. And that is a pretty squiffy dependency I don't want to have to import/install by default.

[albeanth]

the start of something
main...newMemoryInfo

[opotowsky]

Have you used ARMI's MemoryProfiler?

armi/armi/bookkeeping/memoryProfiler.py

Line 71 in 35a0c87

class MemoryProfiler(interfaces.Interface):

One thing I note, that tool (and your above idea) both require the dependency psutil. And that is a pretty squiffy dependency I don't want to have to import/install by default.

MemoryProfiler itself uses psutil. Tony's branch is I think just adding to that class. So all should be well, but let's double check on PR review that we aren't adding any unprotected psutil imports here!

[john-science]

Okay, if your goal is just to improve the MemoryProfiler class, I'm thrilled. Love it.