hg: jdk8u/hs-dev/hotspot: 9 new changesets

[thomas.schatzl at oracle.com]

Changeset: 191174b49bec
Author:    tschatzl
Date:      2014-03-24 15:30 +0100
URL:       http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/191174b49bec

8035406: Improve data structure for Code Cache remembered sets
Summary: Change the code cache remembered sets data structure from a GrowableArray to a chunked list of nmethods. This makes the data structure more amenable to parallelization, and decreases freeing time.
Reviewed-by: mgerdin, brutisso

! make/excludeSrc.make
+ src/share/vm/gc_implementation/g1/g1CodeCacheRemSet.cpp
+ src/share/vm/gc_implementation/g1/g1CodeCacheRemSet.hpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/g1/g1GCPhaseTimes.cpp
! src/share/vm/gc_implementation/g1/g1GCPhaseTimes.hpp
! src/share/vm/gc_implementation/g1/g1_globals.hpp
! src/share/vm/gc_implementation/g1/heapRegion.cpp
! src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp
! src/share/vm/gc_implementation/g1/heapRegionRemSet.hpp
! src/share/vm/memory/freeList.cpp
! src/share/vm/prims/jni.cpp
+ test/gc/g1/TestGCLogMessages.java

Changeset: d7070f371770
Author:    tschatzl
Date:      2014-03-24 15:30 +0100
URL:       http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/d7070f371770

8035815: Cache-align and pad the from card cache
Summary: The from card cache is a very frequently accessed data structure. It is essentially a 2d array of per-region values, one row of values for every GC thread. Pad and align the data structure to avoid false sharing.
Reviewed-by: stefank

! src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp
! src/share/vm/gc_implementation/g1/heapRegionRemSet.hpp
! src/share/vm/memory/padded.hpp
! src/share/vm/memory/padded.inline.hpp

Changeset: 96b1c2e06e25
Author:    tschatzl
Date:      2014-03-24 15:30 +0100
URL:       http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/96b1c2e06e25

8027295: Free CSet takes ~50% of young pause time
Summary: Improve fast card cache iteration and avoid taking locks when freeing the collection set.
Reviewed-by: brutisso

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/g1/g1GCPhaseTimes.cpp
! src/share/vm/gc_implementation/g1/heapRegion.cpp
! src/share/vm/gc_implementation/g1/heapRegion.hpp
! src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp
! test/gc/g1/TestGCLogMessages.java

Changeset: a07bea31ef35
Author:    tschatzl
Date:      2014-03-24 15:30 +0100
URL:       http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/a07bea31ef35

8035398: Add card redirty time in "Other" time in G1
Summary: Show the time taken by card redirtying during GC in a new "Redirty Cards" line.
Reviewed-by: jwilhelm, brutisso

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/g1/g1GCPhaseTimes.cpp
! src/share/vm/gc_implementation/g1/g1GCPhaseTimes.hpp
! test/gc/g1/TestGCLogMessages.java

Changeset: eff02b5bd56c
Author:    tschatzl
Date:      2014-03-24 15:30 +0100
URL:       http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/eff02b5bd56c

8035654: Add times for evacuation failure handling in "Other" time
Summary: Detailed breakdown of time spent in the evacuation failure handling phases to make the "Other" time roughly correspond to the sum of its parts.
Reviewed-by: jwilhelm, jmasa

! 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/g1RemSet.cpp
! test/gc/g1/TestGCLogMessages.java

Changeset: ae7336d6337e
Author:    tschatzl
Date:      2014-03-24 15:30 +0100
URL:       http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/ae7336d6337e

8034868: Extract G1 From Card Cache into separate class
Summary: Refactor the From Card Cache into a separate class.
Reviewed-by: jmasa

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp
! src/share/vm/gc_implementation/g1/heapRegionRemSet.hpp

Changeset: bc22cbb8b45a
Author:    tschatzl
Date:      2014-03-24 15:30 +0100
URL:       http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/bc22cbb8b45a

8035330: Remove G1ParScanPartialArrayClosure and G1ParScanHeapEvacClosure
Summary: Mentioned closures are actually wrapped methods. This adds confusion to readers, and in this case also increases code size as G1ParScanHeapEvacClosure is part of the oop_oop_iterate() methods. Move them into G1ParScanThreadState as methods.
Reviewed-by: stefank

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/g1/g1OopClosures.hpp
! src/share/vm/gc_implementation/g1/g1_specialized_oop_closures.hpp

Changeset: 5479cb006184
Author:    tschatzl
Date:      2014-03-24 15:31 +0100
URL:       http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/5479cb006184

8036860: Pad and cache-align the BiasedMappedArray
Summary: Pad and cache-align BiasedMappedArray instances by default to avoid performance variability problems due to false sharing, as instances of this data structures are typically used for performance sensitive code.
Reviewed-by: brutisso, stefank

! src/share/vm/gc_implementation/g1/g1BiasedArray.cpp
! src/share/vm/gc_implementation/g1/g1BiasedArray.hpp
! src/share/vm/memory/padded.hpp
! src/share/vm/memory/padded.inline.hpp

Changeset: ac767c227ea2
Author:    tschatzl
Date:      2014-03-24 08:05 -0700
URL:       http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/ac767c227ea2

Merge