hg: shenandoah/jdk8u/hotspot: [backport] Uncommit heap regions after given delay

[ashipile at redhat.com]

Changeset: 863e9cbe5b91
Author:    shade
Date:      2017-08-09 21:13 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/863e9cbe5b91

[backport] Uncommit heap regions after given delay

! src/share/vm/gc_implementation/shenandoah/shenandoahConcurrentThread.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahFreeSet.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.hpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeapRegion.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeapRegion.hpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeapRegion.inline.hpp
! src/share/vm/gc_implementation/shenandoah/shenandoahMarkCompact.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahVerifier.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoah_globals.hpp
! src/share/vm/runtime/arguments.cpp
! src/share/vm/services/shenandoahMemoryPool.cpp
+ test/gc/shenandoah/acceptance/HeapUncommit.java