hg: shenandoah/jdk8u/hotspot: [backport] Update statistics to capture thread data accurately

[ashipile at redhat.com]

Changeset: 78e1ffe1fbc6
Author:    shade
Date:      2017-05-09 18:15 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/78e1ffe1fbc6

[backport] Update statistics to capture thread data accurately

! 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/shenandoahConcurrentMark.hpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.cpp