hg: shenandoah/jdk9/hotspot: Parallel AlwaysPreTouch: do heap pre-touch operation in parallel.

[ashipile at redhat.com]

Changeset: 699db4e3478e
Author:    shade
Date:      2016-10-10 15:51 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/699db4e3478e

Parallel AlwaysPreTouch: do heap pre-touch operation in parallel.

! src/share/vm/gc/shared/workgroup.hpp
! src/share/vm/gc/shenandoah/shenandoahHeap.cpp
! src/share/vm/gc/shenandoah/shenandoahHeap.hpp
! src/share/vm/gc/shenandoah/shenandoah_globals.hpp
! src/share/vm/runtime/arguments.cpp
! src/share/vm/runtime/globals.hpp
! src/share/vm/runtime/os.cpp
! src/share/vm/runtime/os.hpp
+ test/gc/shenandoah/AlwaysPreTouch.java