hg: hsx/hotspot-gc/hotspot: 7185699: G1: Prediction model discrepancies

[john.cuthbertson at oracle.com]

Changeset: 7383557659bd
Author:    johnc
Date:      2012-08-21 14:10 -0700
URL:       http://hg.openjdk.java.net/hsx/hotspot-gc/hotspot/rev/7383557659bd

7185699: G1: Prediction model discrepancies
Summary: Correct the result value of G1CollectedHeap::pending_card_num(). Change the code that calculates the GC efficiency of a non-young heap region to use historical data from mixed GCs and the actual number of live bytes when predicting how long it would take to collect the region. Changes were also reviewed by Thomas Schatzl.
Reviewed-by: azeemj, brutisso

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp
! src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp
! src/share/vm/gc_implementation/g1/g1ErgoVerbose.hpp
! src/share/vm/gc_implementation/g1/heapRegion.cpp