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269 Commits

Author SHA1 Message Date
Erik Trimble
4909043745 Merge 2009-12-23 03:12:16 -08:00
Paul Hohensee
ce423c9e98 6843629: Make current hotspot build part of jdk5 control build 
Source changes for older compilers plus makefile changes.

Reviewed-by: xlu
 2009-12-16 12:54:49 -05:00
Jon Masamitsu
c5b5e2e3a7 Merge 2009-12-11 08:39:30 -08:00
Y. Srinivas Ramakrishna
d875a8e0f1 6906727: UseCompressedOops: some card-marking fixes related to object arrays 
Introduced a new write_ref_array(HeapWords* start, size_t count) method that does the requisite MemRegion range calculation so (some of the) clients of the erstwhile write_ref_array(MemRegion mr) do not need to worry. This removed all external uses of array_size(), which was also simplified and made private. Asserts were added to catch other possible issues. Further, less essential, fixes stemming from this investigation are deferred to CR 6904516 (to follow shortly in hs17).

Reviewed-by: kvn, coleenp, jmasa
 2009-12-03 15:01:57 -08:00
Y. Srinivas Ramakrishna
b5af9f3408 6902303: G1: ScavengeALot should cause an incremental, rather than a full, collection 
ScavengeALot now causes an incremental (but possibly partially young, in the G1 sense) collection. Some such collections may be abandoned on account of MMU specs. Band-aided a native leak associated with abandoned pauses, as well as an MMU tracker overflow related to frequent scavenge events in the face of a large MMU denominator interval; the latter is protected by a product flag that defaults to false.

Reviewed-by: tonyp
 2009-11-19 13:43:25 -08:00
Tom Rodriguez
9db2092b1b 6892658: C2 should optimize some stringbuilder patterns 
Reviewed-by: kvn, twisti
 2009-11-12 09:24:21 -08:00
Keith McGuigan
01b706e9f9 Merge 2009-11-11 09:13:12 -05:00
Changpeng Fang
2c40841f3f Merge 2009-11-10 17:00:18 -08:00
Keith McGuigan
d98c05b678 Merge 2009-11-06 15:04:26 -05:00
Y. Srinivas Ramakrishna
a3e539d0da 6801625: CDS: HeapDump tests crash with internal error in compactingPermGenGen.cpp 
Allow iteration over the shared spaces when using CDS, repealing previous proscription. Deferred further required CDS-related cleanups of perm gen to CR 6897789.

Reviewed-by: phh, jmasa
 2009-11-03 16:43:16 -08:00
Vladimir Kozlov
bdd0f44def 6896084: VM does not reserve protected page below heap for compressed oops implicit null checks 
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
Paul Hohensee
2f7d60fa36 6887571: Increase default heap config sizes 
Apply modification of existing server heap size ergo to all collectors except CMS.

Reviewed-by: jmasa, ysr, xlu
 2009-10-28 16:25:51 -04:00
Antonios Printezis
e57cedc5ed Merge 2009-10-20 11:28:25 -07:00
Y. Srinivas Ramakrishna
0bb99b44ef 6892749: assert(UseParNewGC || UseSerialGC || UseConcMarkSweepGC, "...") fails 
Removed the assert: UseSerialGC is not necessarily always set when serial gc is being used.

Reviewed-by: jcoomes, jmasa, tonyp
 2009-10-20 00:00:23 -07:00
Y. Srinivas Ramakrishna
928ac69fcd 6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning 
6889757: G1: enable card mark elision for initializing writes from compiled code (ReduceInitialCardMarks)

Defer the (compiler-elided) card-mark upon a slow-path allocation until after the store  and before the next subsequent safepoint; G1 now answers yes to can_elide_tlab_write_barriers().

Reviewed-by: jcoomes, kvn, never
 2009-10-16 02:05:46 -07:00
John Coomes
7e76feaf42 6888953: some calls to function-like macros are missing semicolons 
Reviewed-by: pbk, kvn
 2009-10-11 16:19:25 -07:00
Erik Trimble
8cea3ed3b4 Merge 2009-10-09 15:18:52 -07:00
John R Rose
eb73cf4739 6885169: merge of 4957990 and 6863023 causes conflict on do_nmethods 
After mechanically merging changes, some by-hand adjustments are needed.

Reviewed-by: ysr
 2009-09-23 23:57:44 -07:00
John R Rose
40d52710f6 Merge 2009-09-23 23:56:15 -07:00
Xiomara Jayasena
15f08eb80e 6884624: Update copyright year 
Update copyright for files that have been modified in 2009 through Septermber

Reviewed-by: tbell, ohair
 2009-09-22 14:06:10 -07:00
John R Rose
e261aecad8 6863023: need non-perm oops in code cache for JSR 292 
Make a special root-list for those few nmethods which might contain non-perm oops.

Reviewed-by: twisti, kvn, never, jmasa, ysr
 2009-09-15 21:53:47 -07:00
Andrey Petrusenko
9ae6fb796e Merge 2009-09-04 05:31:37 -07:00
Vladimir Kozlov
6f927f1578 6869822: assert(Universe::narrow_oop_shift() == 0,"use unscaled narrow oop") 
Replace the assert with narrow_oop_shift set to 0.

Reviewed-by: never, jcoomes
 2009-08-14 12:23:11 -07:00
Vladimir Kozlov
ab7a29cdcc Merge 2009-08-06 09:37:26 -07:00
Jon Masamitsu
bd1c93a58e 6843292: "Expect to be beyond new region unless impacting another region" assertion too strong 
In the assertion allow for collision with the guard page.

Reviewed-by: tonyp, ysr, jcoomes
 2009-08-02 19:10:31 -07:00
Y. Srinivas Ramakrishna
c6763b5bad 4957990: Perm heap bloat in JVM 
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
Andrey Petrusenko
2491751525 6841313: G1: dirty cards of survivor regions in parallel 
Reviewed-by: tonyp, iveresov
 2009-08-31 05:27:29 -07:00
John Coomes
e7c70c499b 6845368: large objects cause a crash or unexpected exception 
Reviewed-by: jmasa, iveresov
 2009-08-13 16:22:45 -07:00
John Coomes
662adda5e6 6861660: OopMapBlock count/size confusion 
Reviewed-by: tonyp, iveresov
 2009-08-11 15:37:23 -07:00
Jon Masamitsu
20a43bad21 6798898: CMS: bugs related to class unloading 
Override should_remember_klasses() and remember_klass() as needed.

Reviewed-by: ysr, jcoomes
 2009-08-24 10:36:31 -07:00
Coleen Phillimore
76a4e2a8c1 Merge 2009-07-30 15:06:19 -04:00
Erik Trimble
e846382e12 Merge 2009-07-29 16:00:35 -07:00
Daniel D. Daugherty
10e13deca1 Merge 2009-07-28 13:50:07 -06:00
Daniel D. Daugherty
40de9c5fcc 6862295: JDWP threadid changes during debugging session (leading to ingored breakpoints) 
Correctly count full GC operations for framework collectors. Add ForceFullGCJVMTIEpilogues as a future work around if needed.

Reviewed-by: jcoomes, alanb, ysr
 2009-07-28 13:35:00 -06:00
Xiomara Jayasena
a63ef10004 6862919: Update copyright year 
Update copyright for files that have been modified in 2009, up to 07/09

Reviewed-by: tbell, ohair
 2009-07-28 12:12:40 -07:00
Christian Thalinger
714db48492 Merge 2009-07-27 06:15:29 -07:00
Vladimir Kozlov
1a7cfb7023 Merge 2009-07-24 09:01:00 -07:00
Vladimir Kozlov
b0f75657c5 6826736: CMS: core dump with -XX:+UseCompressedOops 
Fix deoptimization code and OopMapSet::all_do() to check for oop = narrow_oop_base.

Reviewed-by: jcoomes, phh, ysr, never
 2009-07-22 15:48:51 -07:00
Christian Thalinger
6b849a12a0 6860920: serialize.cpp shouldn't use objArrayOopDesc::base_offset_in_bytes(T_BYTE) 
Serialize.cpp currently uses objArrayOopDesc::base_offset_in_bytes(T_BYTE), which seems to be wrong.

Reviewed-by: coleenp, kvn
 2009-07-20 08:20:00 -07:00
Y. Srinivas Ramakrishna
075c1335cb 6700789: G1: Enable use of compressed oops with G1 heaps 
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
Y. Srinivas Ramakrishna
9d9317de4c 6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM 
Short-circuit gc-a-lot attempts by non-JavaThreads; SkipGCALot c'tor to elide re-entrant gc-a-lot attempts.

Reviewed-by: apetrusenko, jcoomes, jmasa, kamg
 2009-06-11 12:40:00 -07:00
Igor Veresov
8c764e214c 6484957: G1: parallel concurrent refinement 
6826318: G1: remove traversal-based refinement code

Removed traversal-based refinement code as it's no longer used. Made the concurrent refinement (queue-based) parallel.

Reviewed-by: tonyp
 2009-05-11 16:30:56 -07:00
Tom Rodriguez
425fb8197e 6831604: missing null check in guarantee 
Reviewed-by: kvn
 2009-04-17 12:22:18 -07:00
John R Rose
ce0c084720 6655638: dynamic languages need method handles 
Initial implementation, with known omissions (x86/64, sparc, compiler optim., c-oops, C++ interp.)

Reviewed-by: kvn, twisti, never
 2009-04-08 10:56:49 -07:00
Coleen Phillimore
cec3a034d1 6541756: Reduce executable C-heap 
Add executable parameters to reserve_memory and commit_memory to reduce executable memory to only the Code Heap.

Reviewed-by: xlu, kvn, acorn
 2009-03-25 14:19:20 -04:00
Vladimir Kozlov
41463d1d3a Merge 2009-03-19 09:13:24 -07:00
Vladimir Kozlov
f210928e73 6816308: Changes to allow builds with latest Windows SDK 6.1 on 64bit Windows 2003 
Allow Hotspot builds with latest Windows SDK 6.1 on 64bit Windows 2003

Reviewed-by: ohair, tbell, jcoomes
 2009-03-16 15:06:33 -07:00
Erik Trimble
8d6035660e Merge 2009-03-12 18:16:36 -07:00
Vladimir Kozlov
69f9ddee90 6791178: Specialize for zero as the compressed oop vm heap base 
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 
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