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    Enhancement 
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    Resolution: Fixed
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     P2 P2
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    hs10, hs14, 6u14, 6u16, 6u17, 7
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build | 
|---|---|---|---|---|---|---|
| JDK-2187721 | 7 | Y. Ramakrishna | P2 | Resolved | Fixed | b80 | 
| JDK-2190006 | 6u21 | Y. Ramakrishna | P2 | Resolved | Fixed | b01 | 
| JDK-2191892 | 6u20-rev | Yumin Qi | P2 | Closed | Fixed | b03 | 
| JDK-2172369 | 6u19-rev | Yumin Qi | P2 | Resolved | Fixed | b07 | 
| JDK-2177518 | 5.0-pool | Yumin Qi | P3 | Closed | Won't Fix | |
| JDK-2177519 | 1.4-pool | Yumin Qi | P3 | Closed | Won't Fix | |
| JDK-2193664 | hs16.3 | Yumin Qi | P2 | Resolved | Fixed | b02 | 
| JDK-2193520 | hs16.2 | Yumin Qi | P2 | Resolved | Fixed | b07 | 
an email that hints at (some of) the issues involved.
- backported by
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                    JDK-2172369 CMS: better heuristics when combatting fragmentation -           
- Resolved
 
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                    JDK-2187721 CMS: better heuristics when combatting fragmentation -           
- Resolved
 
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                    JDK-2190006 CMS: better heuristics when combatting fragmentation -           
- Resolved
 
-         
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                    JDK-2193520 CMS: better heuristics when combatting fragmentation -           
- Resolved
 
-         
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                    JDK-2193664 CMS: better heuristics when combatting fragmentation -           
- Resolved
 
-         
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                    JDK-2191892 CMS: better heuristics when combatting fragmentation -           
- Closed
 
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                    JDK-2177518 CMS: better heuristics when combatting fragmentation -           
- Closed
 
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                    JDK-2177519 CMS: better heuristics when combatting fragmentation -           
- Closed
 
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- duplicates
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                    JDK-6859722 6u14 Frequent ParNew promotion failure degrades performance -           
- Closed
 
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                    JDK-6933076 scavanging times increase after every Full GC -           
- Closed
 
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                    JDK-6755514 CMS: sharpen asserts related to free list consistency and locking -           
- Closed
 
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                    JDK-6876575 CMS: getChunkFromIndexedFreeListHelper() should allocate from larger indexed free list sizes -           
- Closed
 
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                    JDK-2189686 scavanging times increase after every Full GC -           
- Closed
 
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- relates to
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                    JDK-6915365 assert(false,"Unsupported VMGlobal Type") at management.cpp:1540 -           
- Resolved
 
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                    JDK-6999988 CMS: Increased fragmentation leading to promotion failure after CR#6631166 got implemented -           
- Closed
 
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                    JDK-6916968 CMS: freeList.cpp:304 assert(_allocation_stats.prevSweep() + ..., "Conservation Principle") -           
- Closed
 
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                    JDK-6937526 Support new VM argument type in sun.management.Flag -           
- Closed
 
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                    JDK-6924497 HotSpotDiagnosticsMXBean.getDiagnosticOptions throws NPE -           
- Resolved
 
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                    JDK-6984429 CMS: Crash due to a corrupted heap or frame, possibly because of a missing card-mark or other issue. -           
- Closed
 
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                    JDK-2190628 assert(false,"Unsupported VMGlobal Type") at management.cpp:1540 -           
- Closed
 
-