hg: hsx/hotspot-rt/hotspot: 8024927: Nashorn performance regression with CompressedOops

[coleen.phillimore at oracle.com]

Changeset: 209aa13ab8c0
Author:    coleenp
Date:      2013-10-25 15:19 -0400
URL:       http://hg.openjdk.java.net/hsx/hotspot-rt/hotspot/rev/209aa13ab8c0

8024927: Nashorn performance regression with CompressedOops
Summary: Allocate compressed class space at end of Java heap.  For small heap sizes, without CDS, save some space so compressed classes can have the same favorable compression as oops
Reviewed-by: stefank, hseigel, goetz

! src/cpu/sparc/vm/macroAssembler_sparc.cpp
! src/cpu/sparc/vm/sparc.ad
! src/cpu/x86/vm/macroAssembler_x86.cpp
! src/share/vm/memory/metaspace.cpp
! src/share/vm/memory/metaspace.hpp
! src/share/vm/memory/universe.cpp
! src/share/vm/utilities/globalDefinitions.hpp
+ test/runtime/CompressedOops/CompressedClassPointers.java