hg: hsx/hotspot-gc/hotspot: 7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap

john.cuthbertson at oracle.com john.cuthbertson at oracle.com
Thu May 9 23:54:59 UTC 2013

Changeset: 194f52aa2f23
Author:    johnc
Date:      2013-05-09 11:16 -0700
URL:       http://hg.openjdk.java.net/hsx/hotspot-gc/hotspot/rev/194f52aa2f23

7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
Summary: Refactor G1's hot card cache and card counts table into their own files. Simplify the card counts table, including removing the encoding of the card index in each entry. The card counts table now has a 1:1 correspondence with the cards spanned by heap. Space for the card counts table is reserved from virtual memory (rather than C heap) during JVM startup and is committed/expanded when the heap is expanded. Changes were also reviewed-by Vitaly Davidovich.
Reviewed-by: tschatzl, jmasa

! make/excludeSrc.make
! src/share/vm/gc_implementation/g1/concurrentG1Refine.cpp
! src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp
+ src/share/vm/gc_implementation/g1/g1CardCounts.cpp
+ src/share/vm/gc_implementation/g1/g1CardCounts.hpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1GCPhaseTimes.cpp
! src/share/vm/gc_implementation/g1/g1GCPhaseTimes.hpp
+ src/share/vm/gc_implementation/g1/g1HotCardCache.cpp
+ src/share/vm/gc_implementation/g1/g1HotCardCache.hpp
! src/share/vm/gc_implementation/g1/g1RemSet.cpp
! src/share/vm/gc_implementation/g1/g1RemSet.hpp
! src/share/vm/gc_implementation/g1/g1_globals.hpp
! src/share/vm/runtime/arguments.cpp

More information about the hotspot-gc-dev mailing list