hg: shenandoah/jdk8u/hotspot: Merge GC worker thread pool and enhance GC thread setup for each GC phase

[roman at kennke.org]

Changeset: 215d1315dc60
Author:    zgu
Date:      2017-02-13 16:08 -0500
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/215d1315dc60

Merge GC worker thread pool and enhance GC thread setup for each GC phase

! src/share/vm/gc_implementation/shenandoah/shenandoahCollectorPolicy.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahCollectorPolicy.hpp
! src/share/vm/gc_implementation/shenandoah/shenandoahConcurrentMark.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahConcurrentThread.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.hpp
! src/share/vm/gc_implementation/shenandoah/shenandoahMarkCompact.cpp
+ src/share/vm/gc_implementation/shenandoah/shenandoahWorkGroup.cpp
+ src/share/vm/gc_implementation/shenandoah/shenandoahWorkGroup.hpp
! src/share/vm/gc_implementation/shenandoah/vm_operations_shenandoah.cpp