hg: jdk/sandbox: 8234543: ZGC: Parallel pre-touch

[chris.hegarty at oracle.com]

Changeset: 79fba633d07f
Author:    pliden
Date:      2019-12-03 13:51 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/79fba633d07f

8234543: ZGC: Parallel pre-touch
Reviewed-by: eosterlund, stefank

! src/hotspot/os/bsd/gc/z/zPhysicalMemoryBacking_bsd.cpp
! src/hotspot/os/bsd/gc/z/zPhysicalMemoryBacking_bsd.hpp
! src/hotspot/os/linux/gc/z/zPhysicalMemoryBacking_linux.cpp
! src/hotspot/os/linux/gc/z/zPhysicalMemoryBacking_linux.hpp
! src/hotspot/os/windows/gc/z/zPhysicalMemoryBacking_windows.cpp
! src/hotspot/os/windows/gc/z/zPhysicalMemoryBacking_windows.hpp
! src/hotspot/share/gc/z/zHeap.cpp
! src/hotspot/share/gc/z/zPageAllocator.cpp
! src/hotspot/share/gc/z/zPageAllocator.hpp
! src/hotspot/share/gc/z/zPhysicalMemory.cpp
! src/hotspot/share/gc/z/zPhysicalMemory.hpp
! src/hotspot/share/gc/z/zWorkers.cpp
+ test/hotspot/jtreg/gc/z/TestAlwaysPreTouch.java