Y. Srinivas Ramakrishna
c6763b5bad
4957990: Perm heap bloat in JVM
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Treat ProfileData in MDO's as a source of weak, not strong, roots. Fixes the bug for stop-world collection -- the case of concurrent collection will be fixed separately.
Reviewed-by: jcoomes, jmasa, kvn, never
2009-09-02 00:04:29 -07:00
John Coomes
bc706440bd
6810474: par compact - crash in summary_phase with very full heap
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Reviewed-by: tonyp
2009-03-03 14:23:18 -08:00
Erik Trimble
8d6035660e
Merge
2009-03-12 18:16:36 -07:00
Xiomara Jayasena
2be2e027b0
6814575: Update copyright year
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Update copyright for files that have been modified in 2009, up to 03/09
Reviewed-by: katleman, tbell, ohair
2009-03-09 13:28:46 -07:00
Y. Srinivas Ramakrishna
72bfacbd95
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
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Call newly created CollectedHeap::dump_{pre,post}_full_gc before and after every stop-world full collection cycle on GenCollectedHeap and ParallelScavengeHeap. (Support for G1CollectedHeap forthcoming under CR 6810861.) Small modifications to existing heap dumping and class histogram implementation, especially to allow multiple on-the-fly histos/dumps by the VM thread during a single safepoint.
Reviewed-by: jmasa, alanb, mchung
2009-03-02 16:37:04 -08:00
Jon Masamitsu
3b5d6a04dd
6690928: Use spinning in combination with yields for workstealing termination
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Substitute a spin loop for most calls to yield() to reduce the stress on the system.
Reviewed-by: tonyp
2009-02-08 13:18:01 -08:00
John Coomes
f3c34ce9b6
6786188: par compact - "SplitALot" stress mode should fill to_space
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Reviewed-by: jmasa, tonyp
2008-12-18 10:54:01 -08:00
John Coomes
f90394b6fb
6784849: par compact - can fail when to_space is non-empty
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Reviewed-by: jmasa, tonyp
2008-12-18 10:53:35 -08:00
John Coomes
8fc946854c
6765954: par compact - stress mode for splitting young gen spaces
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Reviewed-by: jmasa
2008-12-11 12:05:21 -08:00
John Coomes
7a9585170d
6765745: par compact - allow young gen spaces to be split
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Reviewed-by: jmasa
2008-12-11 12:05:14 -08:00
John Coomes
000b184507
6578152: fill_region_with_object has usability and safety issues
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Reviewed-by: apetrusenko, ysr
2008-12-11 12:05:08 -08:00
Y. Srinivas Ramakrishna
16aa57cb4b
6778647: snap(), snap_policy() should be renamed setup(), setup_policy()
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Renamed Reference{Policy,Pocessor} methods from snap{,_policy}() to setup{,_policy}()
Reviewed-by: apetrusenko
2008-12-01 23:25:24 -08:00
Y. Srinivas Ramakrishna
7d7cf3f8af
6684579: SoftReference processing can be made more efficient
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For current soft-ref clearing policies, we can decide at marking time if a soft-reference will definitely not be cleared, postponing the decision of whether it will definitely be cleared to the final reference processing phase. This can be especially beneficial in the case of concurrent collectors where the marking is usually concurrent but reference processing is usually not.
Reviewed-by: jmasa
2008-11-20 16:56:09 -08:00
John Coomes
e98b7ce059
6729594: par compact - remove unused block table implementation
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Reviewed-by: tonyp, jmasa, apetrusenko
2008-09-30 13:15:27 -07:00
John Coomes
f2851186bb
6725697: par compact - rename class ChunkData to RegionData
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Reviewed-by: iveresov, tonyp
2008-09-30 12:20:22 -07:00
John Coomes
2e52e9dff2
6716466: par compact - remove VerifyParallelOldWithMarkSweep code
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Reviewed-by: jmasa
2008-09-30 11:49:31 -07:00
Jon Masamitsu
b8633a3b01
Merge
2008-07-28 15:30:23 -07:00
Coleen Phillimore
20dba03e99
6716785: implicit null checks not triggering with CompressedOops
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Allocate alignment-sized page(s) below java heap so that memory accesses at heap_base+1page give signal and cause an implicit null check
Reviewed-by: kvn, jmasa, phh, jcoomes
2008-07-19 17:38:22 -04:00
John Coomes
26625ab7f5
6724367: par compact could clear less young gen summary data
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Reviewed-by: jmasa, apetrusenko
2008-07-11 16:11:50 -07:00
John Coomes
038a30dde3
6483129: par compact assertion failure (new_top > bottom)
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Avoid computing the dense prefix if a space is empty
Reviewed-by: pbk, tonyp
2008-07-11 16:11:43 -07:00
John Coomes
398aa66a77
6718283: existing uses of *_FORMAT_W() were broken by 6521491
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Reviewed-by: ysr, pbk
2008-07-11 16:11:34 -07:00
Erik Trimble
2d6f42d18c
Merge
2008-07-11 01:14:44 -07:00
Jon Masamitsu
18dbebd143
6672698: mangle_unused_area() should not remangle the entire heap at each collection
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Maintain a high water mark for the allocations in a space and mangle only up to that high water mark.
Reviewed-by: ysr, apetrusenko
2008-07-09 15:08:55 -07:00
Xiomara Jayasena
c96a95c4b8
6719955: Update copyright year
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Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell
2008-07-02 12:55:16 -07:00
John Coomes
93584b3060
6676016: ParallelOldGC leaks memory
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Ensure that GCTask threads release resource and handle memory
Reviewed-by: jmasa, chrisphi
2008-06-18 18:36:47 -07:00
Igor Veresov
035662396c
Merge
2008-05-04 03:29:31 -07:00
Andrey Petrusenko
f784be24d1
Merge
2008-04-16 12:58:03 +04:00
Coleen Phillimore
4a831d45f0
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
2008-04-13 17:43:42 -04:00
Andrey Petrusenko
252a10cf1a
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
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Reviewed-by: ysr, jmasa
2008-04-01 15:13:47 +04:00
John Coomes
5ac01e984f
6642862: Code cache allocation fails with large pages after 6588638
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Reviewed-by: apetrusenko
2008-03-28 23:35:42 -07:00
J. Duke
8153779ad3
Initial load
2007-12-01 00:00:00 +00:00
