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26 Commits

Author SHA1 Message Date
Thomas Schatzl
d702d5f8d2 8208669: GC changes to allow enabling -Wreorder 
Reviewed-by: kbarrett
 2018-08-08 15:31:06 +02:00
Zhengyu Gu
4555c28590 8205921: Optimizing best-of-2 work stealing queue selection 
Bias towards stealing from queues that we recently successfully stole from to decrease the number of unsuccessful steal attempts.

Co-authored-by: Thomas Schatzl <thomas.schatzl@oracle.com>
Reviewed-by: eosterlund, kbarrett
 2018-08-03 11:06:10 +02:00
Thomas Schatzl
74a31c5c16 8208297: Allow printing of taskqueue stats if compiled in in product builds 
Reviewed-by: kbarrett
 2018-07-27 09:49:03 +02:00
Stefan Karlsson
11813888b8 8204540: Automatic oop closure devirtualization 
Reviewed-by: kbarrett, eosterlund
 2018-05-26 06:59:49 +02:00
Kim Barrett
b84c23399e 8205459: Rename Access API flag decorators 
Rename OOP_NOT_NULL, IN_HEAP_ARRAY, AS_DEST_NOT_INITIALIZED

Reviewed-by: pliden, stefank
 2018-06-22 17:46:58 -04:00
Chris Phillips
561ec75b9b 8203030: Zero s390 31 bit size_t type conflicts in shared code 
Cast to size_t or change to size_t foe compatibility with other archs.

Reviewed-by: pliden, dholmes
 2018-06-19 10:00:39 -04:00
Stefan Karlsson
3905df21f5 8204538: Split ScanClosure and ScanClosureWithParBarrier 
Reviewed-by: eosterlund, tschatzl, kbarrett
 2018-06-07 10:11:36 +02:00
Thomas Schatzl
7f9bbfa767 8043575: Dynamically parallelize reference processing work 
In G1 automatically set the number of parallel Reference processing threads

Co-authored-by: Sangheon Kim <sangheon.kim@oracle.com>
Reviewed-by: sangheki, kbarrett
 2018-06-18 12:11:59 +02:00
Thomas Schatzl
1a0553e4eb 8202845: Refactor reference processing for improved parallelism 
Fold reference processing's nine phases into four to decrease startup and termination time of this phase.

Reviewed-by: kbarrett, sjohanss
 2018-05-29 09:26:00 +02:00
Robbin Ehn
66f8951e15 8195097: Make it possible to process StringTable outside safepoint 
Reviewed-by: coleenp, gziemski, iklam, jiangli
 2018-06-07 14:11:56 +02:00
Sangheon Kim
4fb9d6717d 8204094: assert(worker_i < _length) failed: Worker 15 is greater than max: 11 at ReferenceProcessorPhaseTimes 
Reviewed-by: kbarrett, tschatzl
 2018-06-04 21:20:16 -07:00
Thomas Schatzl
b34a8c43f1 8202780: Remove EnqueueTask related code from ReferenceProcessor after JDK-8202017 
Remove code obsoleted by JDK-8202017

Reviewed-by: kbarrett, sangheki
 2018-05-09 13:37:05 +02:00
Thomas Schatzl
035d0190a3 8202017: Merge Reference Enqueuing phase with phase 3 of Reference processing 
Do reference enqueuing work directly in phase 3 after every Reference.

Reviewed-by: kbarrett, sangheki
 2018-05-08 10:01:29 +02:00
Stefan Karlsson
1dd85fe2f4 8202641: Replace OOP_SINCE_SAVE_MARKS with templates 
Reviewed-by: eosterlund, sjohanss
 2018-05-07 14:42:08 +02:00
Thomas Schatzl
deb5bf745f 8202021: Improve variable naming in ReferenceProcesso 
Reviewed-by: sangheki, sjohanss
 2018-05-03 14:10:08 +02:00
Thomas Schatzl
945701e945 8201492: Properly implement non-contiguous generations for Reference discovery 
Collectors like G1 implementing non-contiguous generations previously used an inexact but conservative area for discovery. Concurrent and STW reference processing could discover the same reference multiple times, potentially missing referents during evacuation. So these collectors had to take extra measures while concurrent marking/reference discovery has been running. This change makes discovery exact for G1 (and any collector using non-contiguous generations) so that concurrent discovery and STW discovery discover on strictly disjoint memory areas. This means that the mentioned situation can not occur any more, and extra work is not required any more too.

Reviewed-by: kbarrett, sjohanss
 2018-05-03 14:09:00 +02:00
Roman Kennke
389d720746 8199735: Mark word updates need to use Access API 
Reviewed-by: shade, eosterlund
 2018-04-05 10:54:53 +02:00
Stefan Karlsson
f89abe4589 8199946: Move load/store and encode/decode out of oopDesc 
Reviewed-by: eosterlund, coleenp, tschatzl
 2018-03-15 21:24:10 +01:00
Stefan Karlsson
5f4f3883d8 8198525: Move _size_policy out of GenCollectorPolicy into GenCollectedHeap 
Reviewed-by: pliden, sjohanss
 2018-02-22 18:36:32 +01:00
Stefan Karlsson
d129d1cdf2 8189748: More precise closures for WeakProcessor::weak_oops_do calls 
Reviewed-by: pliden, sjohanss
 2017-10-23 11:20:53 +02:00
Stefan Karlsson
3fbc4aec64 8189359: Move native weak oops cleaning out of ReferenceProcessor 
Reviewed-by: pliden, kbarrett
 2017-10-18 21:13:35 +02:00
Coleen Phillimore
39b068db11 8188220: Remove Atomic::*_ptr() uses and overloads from hotspot 
With the new template functions these are unnecessary.

Reviewed-by: kbarrett, dholmes, eosterlund
 2017-10-16 22:36:06 -04:00
Roman Kennke
4516caf125 8179387: Factor out CMS specific code from GenCollectedHeap into its own subclass 
Reviewed-by: ehelin, coleenp
 2017-10-12 15:08:19 +02:00
Coleen Phillimore
73a801bc43 8186777: Make Klass::_java_mirror an OopHandle 
Add indirection for fetching mirror so that GC doesn't have to follow CLD::_klasses

Co-authored-by: Rickard Backman <rickard.backman@oracle.com>
Reviewed-by: hseigel, thartmann, eosterlund, stefank
 2017-10-03 16:42:04 -04:00
Erik Österlund
394e6a8318 8186838: Generalize Atomic::inc/dec with templates 
Reviewed-by: kbarrett, coleenp, dholmes
 2017-09-26 14:05:27 +02:00
Erik Joelsson
3789983e89 8187443: Forest Consolidation: Move files to unified layout 
Reviewed-by: darcy, ihse
 2017-09-12 19:03:39 +02:00