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45 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
Stefan Karlsson
11813888b8 8204540: Automatic oop closure devirtualization 
Reviewed-by: kbarrett, eosterlund
 2018-05-26 06:59:49 +02:00
Paul Hohensee
ebe240f3f4 8195115: G1 Old Gen MemoryPool CollectionUsage.used values don't reflect mixed GC results 
Memory pools can now be optional collection participants, e.g., G1 Old Gen in an incremental collection.

Reviewed-by: ehelin, mchung
 2018-06-19 05:18:49 -07:00
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
Coleen Phillimore
892a2af03f 8204301: Make OrderAccess functions available to hpp rather than inline.hpp files 
Move orderAccess.inline.hpp into orderAccess.hpp and remove os.hpp inclusion and conditional os::is_MP() for fence on x86 platforms

Reviewed-by: dholmes, hseigel
 2018-06-06 10:45:40 -04:00
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
Coleen Phillimore
e3a3941c9a 8202813: Move vm_weak processing from SystemDictionary to WeakProcessor 
SystemDictionary has all strong roots.  The weak oop_storage is processed by the WeakProcessor so it can be scanned and cleared concurrently and/or by parallel threads.

Reviewed-by: kbarrett, sjohanss
 2018-05-29 15:50:27 -04:00
Goetz Lindenmaier
b72846bc20 8202745: Remove hyphens from "out-of-bounds" 
Reviewed-by: rriggs, dholmes
 2018-05-07 23:07:01 +02:00
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
5f40eda733 8202642: Replace PAR_OOP_ITERATE with templates 
Reviewed-by: eosterlund, sjohanss
 2018-05-07 14:42:10 +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
Stefan Karlsson
2e1bd03bad 8202639: Use concrete Generation classes in SerialHeap and CMSHeap 
Reviewed-by: eosterlund, ehelin
 2018-05-07 14:42:05 +02:00
Coleen Phillimore
204ba9a580 8202447: Fix unloading_occurred to mean unloading_occurred 
Nmethod unloading does not need to test for jvmti to set unloading_occurred, nor do we need to clean weak Klasses in metadata if unloading does not occur.

Reviewed-by: sspitsyn, rehn
 2018-04-27 15:00:04 -04:00
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
Gerard Ziemski
edc81d17e1 8202150: [REDO] Split globals.hpp to factor out the Flag class 
Factored out Flag out go globals, renamed to JVMFlag

Reviewed-by: coleenp, dholmes, kvn
 2018-04-26 11:19:05 -05:00
Gerard Ziemski
816e2e5fe0 8202151: [BACKOUT] Split globals.hpp to factor out the Flag class 
Backed out JDK-8081519

Reviewed-by: kvn
 2018-04-23 14:51:16 -05:00
Gerard Ziemski
60723b7e3d 8081519: Split globals.hpp to factor out the Flag class 
Factored out Flag out go globals, renamed to JVMFlag

Reviewed-by: coleenp, dholmes, kvn
 2018-04-23 10:59:39 -05:00
Per Lidén
a4f21eeb03 8201646: Introduce ReferenceDiscoverer interface 
Reviewed-by: stefank, tschatzl, rkennke
 2018-04-19 07:54:50 +02:00
Coleen Phillimore
c215aa5889 8201537: Remove is_alive closure from Klass::is_loader_alive() 
Remove is_alive closure from callers of Klass::is_loader_alive so that cleaning metadata doesn't require GC closure.

Reviewed-by: adinn, stefank
 2018-04-18 13:37:39 -04:00
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
6a8aa0fdad 8200736: Move CMSGCStats to the cms directory 
Reviewed-by: sjohanss, tschatzl
 2018-04-06 11:37:28 +02:00
Stefan Karlsson
f05f8de48f 8200735: Move CMS specific code from binaryTreeDictionary and freeList to CMS files 
Reviewed-by: shade, adinn
 2018-04-06 11:37:26 +02:00
Stefan Karlsson
3a5ca51fff 8200292: Move PushAndMarkVerifyClosure::do_oop_work to concurrentMarkSweepGeneration.cpp 
Reviewed-by: tschatzl, sjohanss
 2018-03-26 17:01:32 +02:00
Stefan Karlsson
1a1aecd166 8200106: Move NoSafepointVerifier out from gcLocker.hpp 
Reviewed-by: coleenp
 2018-03-23 18:54:12 +01:00
Yasumasa Suenaga
fcb1520305 8153333: [REDO] STW phases at Concurrent GC should count in PerfCounte 
Reviewed-by: sjohanss, tschatzl
 2018-03-09 23:13:37 +09:00
Erik Österlund
95d34d138d 8195142: Refactor out card table from CardTableModRefBS to flatten the BarrierSet hierarchy 
Reviewed-by: stefank, coleenp, kvn, ehelin
 2018-02-26 09:34:12 +01:00
Stefan Karlsson
3ad60c1bd2 8198530: Move _gc_policy_counters from GenCollectorPolicy to GenCollectedHeap 
Reviewed-by: kbarrett, sjohanss
 2018-02-22 18:37:48 +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
f408526f30 8198515: Extract SoftReferencePolicy code out of CollectorPolicy 
Reviewed-by: pliden, sjohanss
 2018-02-22 18:36:07 +01:00
Stefan Karlsson
713858f459 8198373: Remove CollectorPolicy::is/as functions 
Reviewed-by: sjohanss, pliden
 2018-02-22 18:34:18 +01:00
Per Lidén
2606b1f985 8198369: Clean up GCId and GCIdMark 
Reviewed-by: stefank, eosterlund
 2018-02-21 07:50:33 +01:00
Roman Kennke
3f3f0cb67e 8191564: Refactor GC related servicability code into GC specific subclasses 
Reviewed-by: ehelin, eosterlund
 2017-11-30 13:40:07 +01:00
Jamsheed Mohammed C M
10a1edcc22 8152470: Add COMPILER2_OR_JVMCI definition 
Defined(COMPILER2) || INCLUDE_JVMCI changed replaced with COMPILER2_OR_JVMCI

Reviewed-by: kvn
 2017-11-06 21:28:03 -08:00
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