RFR: 8222182: ZGC: Use SoftMaxHeapSize to guide GC heuristics

[Thomas Schatzl]

Hi Per,

On Thu, 2019-04-11 at 13:50 +0200, Per Liden wrote:
> Hi Thomas,
> 
> Thank for looking at the patch. However, I'm afraid your comments
> are based on incorrect assumptions, which makes them difficult to
> address. 
> I'll try to clarify a few key points below. Hope that helps.

  after looking at your comments, I got the source of my
misunderstanding: I misread the change in zPageAllocator.cpp:112 to be
a new version of ZPageAllocator::current_max_capacity(), but it changed
to ZPageAllocator::soft_max_capacity().

And the old contents of ZPageAllocator::current_max_capacity() has been
inlined into ZPageAllocator::max_available().

Sorry for the fuss. Looks good to me then.

Still I strongly recommend a release note :)

Thanks,
  Thomas