28 Commits

Author SHA1 Message Date
Kim Barrett
5b3c33ac67 8245022: ParallelGC abuses StarTask to also include partial objarray scan tasks
Change ParallelGC young collections to use ScannerTasks.

Reviewed-by: tschatzl, sjohanss
2020-05-20 17:21:16 -04:00
Kim Barrett
1856ff8913 8244684: G1 abuses StarTask to also include partial objarray scan tasks
New ScannerTask and PartialArrayScanTask, initially used by G1

Reviewed-by: tschatzl, sjohanss
2020-05-14 08:24:36 -04:00
Stefan Karlsson
46423b0f70 8237637: Remove dubious type conversions from oop
Reviewed-by: kbarrett, dholmes, mdoerr
2020-01-24 09:27:07 +01:00
Thomas Schatzl
9a4c25731e 8228609: G1 copy cost prediction uses used vs. actual copied byte
Let the object copy cost predictor use the actual copied bytes as input for the prediction instead of the used bytes.

Reviewed-by: kbarrett, sjohanss
2019-11-21 11:42:54 +01:00
Sangheon Kim
46c3d43f83 8220312: Implementation: NUMA-Aware Memory Allocation for G1, Logging (3/3)
Reviewed-by: kbarrett, sjohanss, tschatzl
2019-11-13 10:51:41 -08:00
Sangheon Kim
eaa6355cb0 8220311: Implementation: NUMA-Aware Memory Allocation for G1, Survivor (2/3)
Reviewed-by: kbarrett, sjohanss, tschatzl
2019-11-13 10:49:32 -08:00
Thomas Schatzl
f543e8e4ea 8227442: Make young_index_in_cset zero-based
Avoid unnecessary increment of young_index_in_cset in copy_to_survivor_space.

Reviewed-by: kbarrett, sangheki
2019-08-20 09:22:18 +02:00
Kim Barrett
0b9a90e0d1 8229044: G1RedirtyCardsQueueSet should be local to a collection
Stack allocate redirty qsets in do_collection_pause_at_safepoint.

Reviewed-by: tschatzl, sangheki
2019-08-16 14:46:52 -04:00
Stefan Karlsson
ae5615c614 8229258: Rework markOop and markOopDesc into a simpler mark word value carrier
Reviewed-by: rkennke, coleenp, kbarrett, dcubed
2019-08-06 10:48:21 +02:00
Kim Barrett
4b3c528140 8162929: Enqueuing dirty cards into a single DCQS during GC does not scale
Refactor into G1RedirtyCardsQueue[Set] and G1DirtyCardQueueSet

Reviewed-by: tschatzl, sangheki
2019-07-19 16:47:11 -04:00
Thomas Schatzl
d46d9318c1 8213108: Improve work distribution during remembered set scan
Before scanning the heap for roots into the collection set, merge them into a single remembered set (card table) and do work distribution based on location like other collectors do.

Reviewed-by: kbarrett, lkorinth
2019-06-27 11:48:32 +02:00
Thomas Schatzl
3d149df158 8200545: Improve filter for enqueued deferred cards
Reviewed-by: kbarrett, sangheki
2019-05-14 15:36:26 +02:00
Thomas Schatzl
ece7e8a2a1 8220301: Remove jbyte use in CardTable
Use CardTable::CardValue aliased to uint8_t instead.

Reviewed-by: kbarrett, shade
2019-03-13 21:01:56 +01:00
Thomas Schatzl
eaab45a8b8 8219096: Merge print_termination_stats code with current logging
Reviewed-by: lkorinth, kbarrett
2019-02-20 14:30:33 +01:00
Kim Barrett
d2c690e80b 8218089: Rename DirtyCardQueue et al to follow usual G1 naming conventions
Move files and rename classes.

Reviewed-by: tschatzl, lkorinth
2019-02-13 17:38:14 -05:00
Coleen Phillimore
154a1a02bf 8216167: Update include guards to reflect correct directories
Use script and some manual fixup to fix directores names in include guards.

Reviewed-by: lfoltan, eosterlund, kbarrett
2019-01-10 15:13:51 -05:00
Stefan Johansson
37f135132e 8213890: Implementation of JEP 344: Abortable Mixed Collections for G1
Co-authored-by: Erik Helin <erik.helin@oracle.com>
Reviewed-by: tschatzl, kbarrett
2018-12-07 13:54:45 +01:00
Thomas Schatzl
28c9f22ebb 8212911: Unify and micro-optimize handling of non-in-collection set references in oop closures
Reviewed-by: kbarrett, sjohanss
2018-10-31 13:43:57 +01:00
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
0f583c7817 6672778: G1 should trim task queues more aggressively during evacuation pauses
Regularly try to drain task queues. This helps memory usage and performance during garbage collection.

Reviewed-by: sjohanss, sangheki
2018-04-27 12:06:46 +02:00
Per Lidén
a4f21eeb03 8201646: Introduce ReferenceDiscoverer interface
Reviewed-by: stefank, tschatzl, rkennke
2018-04-19 07:54:50 +02:00
Thomas Schatzl
6e6a9ea8aa 8200233: Simple G1 evacuation path performance enhancements
Implement some minor performance optimizations in the evacuation path including changing some stores to be OOP_NOT_NULL, specializing the compressed/uncompressed oops path and delay some load of the current heapregion until absolutely necessary.

Reviewed-by: kbarrett, sjohanss
2018-04-11 11:41:30 +02:00
Thomas Schatzl
e50ba1fca5 8197928: Only enqueue deferred cards with references into regions that have a tracked remembered set during GC
Reviewed-by: sangheki, sjohanss
2018-03-28 16:39:32 +02:00
Erik Österlund
a06129a432 8195148: Collapse G1SATBCardTableModRefBS and G1SATBCardTableLoggingModRefBS into a single G1BarrierSet
Reviewed-by: ehelin, kbarrett
2018-03-06 08:36:44 +01:00
Stefan Johansson
bacf4db5bd 8198424: Remove G1AllocationContext
Reviewed-by: ehelin, tschatzl
2018-03-02 10:09:08 +01:00
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
58dd5210ec 8192061: Clean up allocation.inline.hpp includes
Reviewed-by: eosterlund, coleenp
2017-11-28 21:43:45 +01:00
Erik Joelsson
3789983e89 8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
2017-09-12 19:03:39 +02:00