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45 Commits

Author SHA1 Message Date
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
Kim Barrett
a99eca12cc 8201826: G1: Don't invoke WeakProcessor if mark stack has overflowed 
Move WeakProcessor invocation after overflow check

Reviewed-by: stefank, tschatzl
 2018-04-23 16:00:56 -04:00
Thomas Schatzl
2006105114 8201527: Bump default value of G1RefProcDrainInterval 
Due to high startup cost of marking, lower the frequency of draining the mark stack generated by reference processing.

Reviewed-by: sangheki, sjohanss
 2018-04-18 19:00:32 +02:00
Thomas Schatzl
6db76f1af6 8201172: Parallelize Remset Tracking Update Before Rebuild phase 
Reviewed-by: sangheki, sjohanss
 2018-04-18 11:36:48 +02:00
Thomas Schatzl
c62a6abe91 8201490: Improve concurrent mark keep alive closure performance 
Avoid doing marking work unless absolutely required.

Reviewed-by: sjohanss, kbarrett
 2018-04-18 11:36:48 +02:00
Thomas Schatzl
dc7aa2ca03 8200730: Fix debug=gc+phases time tracking in Remark and Cleanup 
Timing in Remark and Cleanup pauses did not use instance variables for the scoped timing objects, so these durations were always zero.

Reviewed-by: sangheki, sjohanss
 2018-04-18 11:36:48 +02:00
Thomas Schatzl
5b42f3ce0d 8200426: Make G1 code use _g1h members 
Consistently use _g1h member names for cached G1CollectedHeap* variables.

Reviewed-by: sangheki, sjohanss
 2018-04-18 11:36:48 +02:00
Thomas Schatzl
9db71579ee 8154528: Reclaim regions emptied by marking in Remark pause 
Reviewed-by: shade, sjohanss
 2018-04-18 11:36:48 +02:00
Thomas Schatzl
7c09cf644b 8178105: Switch mark bitmaps during Remark 
Reviewed-by: sjohanss, sangheki
 2018-04-18 11:36:48 +02:00
Per Lidén
6825739d3f 8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread 
Reviewed-by: shade, rehn
 2018-04-12 08:25:56 +02:00
Per Lidén
4c60e69b97 8201316: Move G1-related static members from JavaThread to G1BarrierSet 
Reviewed-by: stefank, shade
 2018-04-12 08:25:30 +02:00
Thomas Schatzl
4fd82a111e 8200385: Eagerly reclaimed humongous objects leave mark in prev bitmap 
Also clear marks on prev bitmap on eager reclaim

Reviewed-by: sangheki, sjohanss
 2018-04-10 09:12:23 +02:00
Thomas Schatzl
e5ec636e7d 8200305: Update gc,liveness output with remset state after rebuild remset concurrently changes 
Reviewed-by: sjohanss, sangheki
 2018-04-04 14:51:26 +02:00
Thomas Schatzl
94d2a9db4c 8200074: Remove G1ConcurrentMark::_concurrent_marking_in_progress 
Reviewed-by: sjohanss, sangheki
 2018-04-04 11:21:14 +02:00
Thomas Schatzl
ee1bd0136b 8200255: Remove G1CMTask::_concurrent 
Reviewed-by: sangheki, sjohanss
 2018-04-04 11:21:14 +02:00
Thomas Schatzl
5780affe90 8200234: Cleanup Remark and Cleanup pause code 
Remove redundant methods, factor out verification code and simplify code in Remark and Cleanup pause code.

Reviewed-by: sangheki, sjohanss
 2018-04-04 11:21:14 +02:00
Leo Korinth
05dd65349b 8200371: In g1, rename ConcurrentMarkThread to G1ConcurrentMarkThread 
Reviewed-by: tschatzl, sangheki
 2018-04-03 12:05:49 +02:00
Thomas Schatzl
d594ab7636 8151171: Bring g1ConcurrentMark files up to current coding conventions 
Improve method naming, bracketing, use of _g1h member and general cleanup.

Reviewed-by: sangheki, sjohanss
 2018-03-29 14:08:10 +02:00
Thomas Schatzl
5524494066 8199742: Clean up state flags in G1CollectorState 
Remove, merge and update naming of flags in G1CollectorState

Reviewed-by: sangheki, sjohanss
 2018-03-29 14:07:59 +02:00
Thomas Schatzl
7995d17bca 8199326: Remove G1 gc time stamp logic 
G1 gc time stamp logic is unused completely after JDK-8180415, so removing it.

Reviewed-by: sangheki, sjohanss
 2018-03-28 16:39:32 +02:00
Thomas Schatzl
83d7c657c4 8197573: Remove concurrent cleanup and secondary free list handling 
Remove secondary free list and all associated functionality, moving the cleanup work into the Cleanup pause instead.

Reviewed-by: sangheki, sjohanss
 2018-03-28 16:39:32 +02:00
Thomas Schatzl
c30aef79df 8180415: Rebuild remembered sets during the concurrent cycle 
In general maintain remembered sets of old regions only from the start of the concurrent cycle to the mixed gc they are used, at most until the end of the mixed phase.

Reviewed-by: sjohanss, sangheki
 2018-03-26 16:51:43 +02:00
Thomas Schatzl
28fb5548de 8197850: Calculate liveness in regions during marking 
Reviewed-by: sjohanss, sangheki
 2018-03-26 16:51:43 +02:00
Thomas Schatzl
af7d8f0d69 8197569: Refactor eager reclaim for concurrent remembered set rebuilding 
Expose information about eager reclaim region selection.

Reviewed-by: sjohanss, sangheki
 2018-03-26 16:51:41 +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
Coleen Phillimore
394e34d821 8199282: Remove ValueObj class for allocation subclassing for gc code 
Reviewed-by: stefank, kbarrett
 2018-03-14 07:27:19 -04:00
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
Stefan Johansson
38dcf9fdf1 8198420: Remove unused extension point AllocationContextStats 
Reviewed-by: ehelin, tschatzl
 2018-02-23 09:38:33 +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
Thomas Schatzl
80fa8a7208 8196602: Change HeapRegionClosure to comply to naming conventions 
Reviewed-by: kbarrett, sjohanss
 2018-02-09 13:09:55 +01:00
Stefan Johansson
ea04c5cfb3 8191821: Finer granularity for GC verification 
Reviewed-by: tschatzl, poonam, sangheki
 2017-12-01 08:56:22 +01:00
Leo Korinth
d1cbd17c2c 8190408: Run G1CMRemarkTask with the appropriate amount of threads instead of starting up everyone 
Reviewed-by: tschatzl, sjohanss
 2017-11-13 15:28:17 +01:00
Stefan Johansson
6929e0f05a 8186571: Implementation: JEP 307: Parallel Full GC for G1 
Improve G1 worst-case latencies by making the full GC parallel.

Reviewed-by: tschatzl, sangheki, ehelin
 2017-11-14 11:33:23 +01:00
Thomas Schatzl
bdb82eb577 8189797: Fix initializer lists in G1ConcurrentMark and G1CMTask 
Reviewed-by: kbarrett
 2017-10-25 16:15:10 +02:00
Thomas Schatzl
1eabe47e62 8189673: Consistent naming of concurrent threads, tasks and related identifiers 
Reviewed-by: sjohanss, drwhite
 2017-10-25 16:13:09 +02:00
Thomas Schatzl
c66290985d 8189801: Remove G1MarkingOverheadPercent 
Remove obsolete and buggy functionality related to G1MarkingOverheadPercent

Reviewed-by: sjohanss
 2017-10-25 16:12:15 +02:00
Thomas Schatzl
6787fc889f Merge 2017-10-23 10:45:07 +00:00
Thomas Schatzl
793aa8d8ce 8189666: Replace various inlined percentage calculations with global percent_of() 
Reviewed-by: sjohanss, sangheki
 2017-10-23 11:46:25 +02:00
Thomas Schatzl
0757704af2 8184667: Clean up G1ConcurrentMark files 
Fix naming, formatting, access control, remove unused code.

Reviewed-by: sjohanss, pliden
 2017-10-23 11:46:12 +02:00
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
7a5e525604 Merge 2017-10-18 21:06:31 +00:00
Roman Kennke
9ba22876cf 8189276: Make SuspendibleThreadSet and related code available to other GCs 
Reviewed-by: zgu, coleenp
 2017-10-18 21:17:46 +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
Erik Joelsson
3789983e89 8187443: Forest Consolidation: Move files to unified layout 
Reviewed-by: darcy, ihse
 2017-09-12 19:03:39 +02:00