Cdiffs Udiffs Sdiffs Frames Old New Patch Raw src/share/vm/gc_implementation/g1/concurrentMark.cpp

rev 6669 : 8048084: Need to abort concurrent next bitmap clear when marking is aborted during concurrent next bitmap clearing
Summary: When concurrent next bitmap clearing is interrupted by Full GC, we need to abort concurrent next bitmap clear. On the one hand, the concurrent marking thread might still be working on a just uncommitted region, and on the other hand this is superfluous work because the Full GC already did that during mark abort handling.
Reviewed-by:

71 lines changed: 43 ins; 23 del; 5 mod; 4708 unchg

Cdiffs Udiffs Sdiffs Frames Old New Patch Raw src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp

rev 6668 : 8048112: G1 Full GC needs to support the case when the very first region is not available
Summary: To allow uncommit of regions within the heap, G1 Full GC should correctly handle the case when the very first region is not available (uncommitted). Provide support for that by lazily initializing the compaction point during iteration of the list of heap regions. Further refactor the code to let the G1CollectedHeap handle finding the next region to compact into.
Reviewed-by:
rev 6669 : 8048084: Need to abort concurrent next bitmap clear when marking is aborted during concurrent next bitmap clearing
Summary: When concurrent next bitmap clearing is interrupted by Full GC, we need to abort concurrent next bitmap clear. On the one hand, the concurrent marking thread might still be working on a just uncommitted region, and on the other hand this is superfluous work because the Full GC already did that during mark abort handling.
Reviewed-by:

96 lines changed: 18 ins; 31 del; 47 mod; 6686 unchg

Cdiffs Udiffs Sdiffs Frames Old New Patch Raw src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp

rev 6668 : 8048112: G1 Full GC needs to support the case when the very first region is not available
Summary: To allow uncommit of regions within the heap, G1 Full GC should correctly handle the case when the very first region is not available (uncommitted). Provide support for that by lazily initializing the compaction point during iteration of the list of heap regions. Further refactor the code to let the G1CollectedHeap handle finding the next region to compact into.
Reviewed-by:
rev 6669 : 8048084: Need to abort concurrent next bitmap clear when marking is aborted during concurrent next bitmap clearing
Summary: When concurrent next bitmap clearing is interrupted by Full GC, we need to abort concurrent next bitmap clear. On the one hand, the concurrent marking thread might still be working on a just uncommitted region, and on the other hand this is superfluous work because the Full GC already did that during mark abort handling.
Reviewed-by:

11 lines changed: 1 ins; 1 del; 9 mod; 1706 unchg

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