8178148: Log more detailed information about scan rs phase
Summary: Add logging about the number of cards actually scanned, claimed and skipped during the Scan RS phase
Reviewed-by: ehelin, sangheki

8182696: Remove gcTrace.hpp include from referenceProcessor.hpp
Reviewed-by: tschatzl, kbarrett

8162104: Use in_cset() instead of obj_in_cs()
Reviewed-by: ehelin, sjohanss

8152438: Threads may do significant work out of the non-shared overflow buffer
Summary: Before processing an element in the non-shared overflow buffer, try to push it into the local shared buffer to keep it full.
Reviewed-by: jmasa, ehelin, sjohanss

8151178: Move the collection set out of the G1 collector policy
Summary: Create a G1CollectionSet class
Reviewed-by: jwilhelm, tbenson, tschatzl

8150629: Initializing all ParScanThreadStates causes significant unaccounted "Other" times
Summary: Lazily allocate ParScanThreadStates within the worker threads instead of doing this work upfront serially.
Reviewed-by: mgerdin, jmasa

8139867: Change how startsHumongous and continuesHumongous regions work in G1.
Reviewed-by: tschatzl, tbenson

8139200: Eliminate G1ParClosureSuper::_worker_id
Summary: Moved _worker_id from G1ParClosureSuper to G1ParCopyHelper.
Reviewed-by: mgerdin, tschatzl

8138762: Refactor setup of evacuation closures in G1
Summary: Introduce policy class containing the root scan closures.
Reviewed-by: ehelin, stefank

8080775: Better argument formatting for assert() and friends
Reviewed-by: kbarrett, pliden

8135154: Move cards scanned and surviving young words aggregation to G1ParScanThreadStateSet
Reviewed-by: tschatzl, ehelin

8135152: Create a G1ParScanThreadStateSet class for managing G1 GC per thread states
Reviewed-by: tschatzl, ehelin

8066443: Add G1 support for promotion event
Reviewed-by: tschatzl

8073146: G1 merges thread local age tables too early with global age table
Summary: Move merging of age and survivor table to the end of GC.
Reviewed-by: mgerdin, david

8040162: Avoid reallocating PLABs between GC phases in G1
Summary: Allocate G1ParScanThreadState at the start of GC and only deallocate at the end of GC. This automatically keeps the current PLAB intact without flushing it (and loosing lots of memory) for every reallocation.
Reviewed-by: david, mgerdin

8073013: Add detailed information about PLAB memory usage
Summary: Track and provide information about direct allocation, region end waste and failure waste for G1.
Reviewed-by: jmasa, david, ehelin, mgerdin

8133470: Uses of Atomic methods in plab.hpp should be moved to .inline.hpp file
Summary: Fix include file dependencies according to general guidelines for plab.hpp
Reviewed-by: ehelin, mgerdin

8003237: G1: Reduce unnecessary (and failing) allocation attempts when handling an evacuation failure
Summary: Remember for every generation whether the memory for that generation has already been exhausted. If so, do not try to get a new region for these generations. Further, if the last generation is full, early exit from copy_to_survivor_space.
Reviewed-by: jmasa, brutisso

8133047: Rename G1ParScanThreadState::_queue_num to _worker_id
Reviewed-by: jmasa, jwilhelm

8133043: Clean up code related to termination stats printing
Summary: Reformat termination stats related code to make it look more similar to existing code.
Reviewed-by: jwilhelm, jmasa

8073052: Rename and clean up the allocation manager hierarchy in g1Allocator.?pp
Summary: Fix naming of G1ParGCAllocator, decrease dependencies between G1CollectedHeap, G1Allocator and G1AllocRegion, additional documentation.
Reviewed-by: mgerdin, jmasa, kbarrett

8004687: G1: Parallelize object self-forwarding and scanning during an evacuation failure
Summary: Use the regular task queue during evacuation failure and allow per-thread preserved header queues to remove the global lock during evacuation failure.
Reviewed-by: mgerdin, jmasa
Contributed-by: Walter Florian Gugenberger <walter.gugenberger@gmail.com>

8079792: GC directory structure cleanup
Reviewed-by: brutisso, stefank, david