Tom Rodriguez
9db2092b1b
6892658: C2 should optimize some stringbuilder patterns
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Reviewed-by: kvn, twisti
2009-11-12 09:24:21 -08:00
Vladimir Kozlov
bdd0f44def
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
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Set narrow_oop_base and narrow_oop_use_implicit_null_checks in Universe::preferred_heap_base().
Reviewed-by: twisti, jcoomes
2009-10-29 16:57:55 -07:00
Vladimir Kozlov
6f927f1578
6869822: assert(Universe::narrow_oop_shift() == 0,"use unscaled narrow oop")
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Replace the assert with narrow_oop_shift set to 0.
Reviewed-by: never, jcoomes
2009-08-14 12:23:11 -07:00
Y. Srinivas Ramakrishna
075c1335cb
6700789: G1: Enable use of compressed oops with G1 heaps
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Modifications to G1 so as to allow the use of compressed oops.
Reviewed-by: apetrusenko, coleenp, jmasa, kvn, never, phh, tonyp
2009-07-14 15:40:39 -07:00
Vladimir Kozlov
41463d1d3a
Merge
2009-03-19 09:13:24 -07:00
Vladimir Kozlov
69f9ddee90
6791178: Specialize for zero as the compressed oop vm heap base
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Use zero based compressed oops if java heap is below 32gb and unscaled compressed oops if java heap is below 4gb.
Reviewed-by: never, twisti, jcoomes, coleenp
2009-03-12 10:37:46 -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
John Coomes
a88e734cac
6786195: many nsk.monitoring tests fail with -server -Xcomp
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Remove Universe::_fillerArrayKlassObj and associated code
Reviewed-by: jmasa, tonyp
2008-12-18 01:27:04 -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
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
Antonios Printezis
615777b6da
Merge
2008-08-21 23:36:31 -04:00
Keith McGuigan
74faacc945
6721093: -XX:AppendRatio=N not supported
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Add mechanism to ignore unsupported flags for a set period of time
Reviewed-by: acorn, never, coleenp
2008-07-28 14:07:44 -04:00
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
Y. Srinivas Ramakrishna
18f3386a98
6711316: Open source the Garbage-First garbage collector
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First mercurial integration of the code for the Garbage-First garbage collector.
Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
2008-06-05 15:57:56 -07:00
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
J. Duke
8153779ad3
Initial load
2007-12-01 00:00:00 +00:00
