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193 Commits

Author SHA1 Message Date
Evgeniya Stepanova
19e80a1f8f 6407976: GC worker number should be unsigned 
Reviewed-by: jwilhelm, tschatzl
 2015-04-29 15:12:33 +03:00
Sangheon Kim
e207b18f10 8073204: Determining the desired PLAB size adjusts to the the number of threads at the wrong place 
Calculate the desired PLAB value for a single thread and then return desired PLAB size according to the current number of threads when needed

Reviewed-by: ysr, jwilhelm, tschatzl
 2015-04-28 12:02:50 -07:00
Joseph Provino
d27e6d731e 8074545: Rename and clean up the ParGCAllocBuffer class 
Rename ParGCAllocBuffer to PLAB and rename affected files.

Reviewed-by: tschatzl, kbarrett
 2015-04-15 11:42:20 -04:00
Per Lidén
82de4945ac 8077415: Remove duplicate variables holding the CollectedHeap 
Reviewed-by: stefank, kbarrett
 2015-04-16 09:28:18 +02:00
Kim Barrett
763048052f 8069367: Eagerly reclaimed humongous objects left on mark stack 
Prevent eager reclaim of objects that might be on mark stack.

Reviewed-by: brutisso, tschatzl
 2015-04-15 12:16:01 -04:00
Bengt Rutisson
2cefed232b 8077411: Remove CollectedHeap::supports_heap_inspection() 
Reviewed-by: stefank, ecaspole, jmasa
 2015-04-12 14:59:41 +02:00
Thomas Schatzl
0a0a22f7ea 8058354: SPECjvm2008-Derby -2.7% performance regression on Solaris-X64 starting with 9-b29 
Allow use of large pages for auxiliary data structures in G1. Clean up existing interfaces.

Reviewed-by: jmasa, pliden, stefank
 2015-04-07 10:53:51 +02:00
Bengt Rutisson
d2f816a875 8076452: Remove SharedHeap 
Reviewed-by: stefank, sjohanss, david
 2015-04-02 16:08:41 +02:00
Bengt Rutisson
c3b72f7f5b 8076454: Clean up/move things out of SharedHeap 
Reviewed-by: stefank, sjohanss, david
 2015-04-02 16:06:07 +02:00
Per Lidén
cee2c148bc 8076294: Cleanup of CollectedHeap::kind() 
Reviewed-by: stefank, ecaspole
 2015-04-01 10:49:08 +02:00
Per Lidén
ff23a17283 8076231: Remove unused is_in_partial_collection() 
Reviewed-by: brutisso, drwhite
 2015-03-31 08:27:30 +02:00
Stefan Karlsson
0c57e77d43 8075803: Fix GC includes and forward declarations 
Reviewed-by: pliden, mgerdin
 2015-03-24 11:21:21 +01:00
Mikael Gerdin
f5292016ee 8075210: Refactor strong root processing in order to allow G1 to evolve separately from GenCollectedHeap 
Create a G1RootProcessor and move SharedHeap root processing to GenCollectedHeap

Reviewed-by: brutisso, tschatzl, ehelin
 2014-12-01 15:24:56 +01:00
Andrey Zakharov
9272128a46 8061715: gc/g1/TestShrinkAuxiliaryData15.java fails with java.lang.RuntimeException: heap decommit failed - after > before 
Added WhiteBox methods to count regions and exact aux data sizes

Reviewed-by: tschatzl, jwilhelm, mgerdin
 2015-03-16 17:51:28 +03:00
Erik Helin
be4035c60a 8030646: track collection set membership in one place 
Reviewed-by: tschatzl, jwilhelm
 2015-01-26 10:32:35 +01:00
Staffan Friberg
67fddc10a6 8031538: G1 eden usage is sometimes higher than target eden (printed Eden size) 
When recalculating the number of target eden size, correctly consider the amount of existing eden regions in the target calculation.

Reviewed-by: tschatzl
 2015-03-06 09:07:33 +01:00
Kim Barrett
40d3986051 8069016: Add BarrierSet downcast support 
Add FakeRttiSupport utility and use to provide barrier_set_cast.

Reviewed-by: jmasa, sangheki
 2015-02-27 19:52:48 -05:00
Marcus Larsson
7727fe0044 8072621: Clean up around VM_GC_Operations 
Reviewed-by: brutisso, jmasa
 2015-02-13 09:48:49 +01:00
Claes Redestad
8d30377d50 8068037: Remove dead code in G1CollectedHeap 
Reviewed-by: stefank, tschatzl
 2015-01-08 14:13:03 +01:00
Thomas Schatzl
afb458ef0e 8048179: Early reclaim of large objects that are referenced by a few objects 
Push the remembered sets of large objects with few referenced into the dirty card queue at the beginning of the evacuation so that they may end up with zero remembered set entries at the end of the collection, and are potentially reclaimed. Also improve timing measurements of the early reclaim mechanism, and shorten flag names.

Reviewed-by: brutisso, jmasa, dfazunen
 2015-01-07 15:15:37 +01:00
Thomas Schatzl
52a4823950 8068018: Clean up friends of G1CollectedHeap 
Remove unnecessary friend class declaration in the G1CollectedHeap class.

Reviewed-by: jwilhelm, jmasa
 2014-12-23 15:48:32 +01:00
Thomas Schatzl
d530b1da99 8068036: assert(is_available(index)) failed in G1 cset 
Some verification code iterated over the heap using the region mapping array. This is not allowed. Changed to use the regular iteration method with closure.

Reviewed-by: jwilhelm, brutisso
 2014-12-22 16:49:24 +01:00
Thomas Schatzl
1be86b3412 8060025: Object copy time regressions after JDK-8031323 and JDK-8057536 
Evaluate and improve object copy time by micro-optimizations and splitting out slow and fast paths aggressively.

Co-authored-by: Tony Printezis <tprintezis@twitter.com>
Reviewed-by: kbarrett, mgerdin, jmasa
 2014-12-19 09:21:06 +01:00
Mikael Gerdin
cc786b287d 8067655: Clean up G1 remembered set oop iteration 
Pass on the static type G1ParPushHeapRSClosure to allow oop_iterate devirtualization

Reviewed-by: jmasa, kbarrett
 2014-12-08 18:57:33 +01:00
Marcus Larsson
89dca54c74 8062943: REDO - Parallelize clearing the next mark bitmap 
Reviewed-by: kbarrett, tschatzl
 2014-11-25 11:59:55 +01:00
Stefan Johansson
6306dce831 8061234: ResourceContext.requestAccurateUpdate() is unreliable 
Changing copy_allocation_context_stats to return if there are more stats available after the copy.

Reviewed-by: rriggs, jcoomes
 2014-10-30 10:51:06 +01:00
Kim Barrett
8f8d87ece5 8061748: Remove check_ct_logs_at_safepoint() 
Remove unused function and related closure class

Reviewed-by: jwilhelm, mgerdin
 2014-10-23 16:19:32 -04:00
Thomas Schatzl
60f3ade82b 8059758: Footprint regressions with JDK-8038423 
Changes in JDK-8038423 always initialize (zero out) virtual memory used for auxiliary data structures. This causes a footprint regression for G1 in startup benchmarks. This is because they do not touch that memory at all, so the operating system does not actually commit these pages. The fix is to, if the initialization value of the data structures matches the default value of just committed memory (=0), do not do anything.

Reviewed-by: jwilhelm, brutisso
 2014-10-09 11:40:11 +02:00
Marcus Larsson
6d1c35615a 8058298: Separate heap region iterator claim values from the data structures iterated over 
Reviewed-by: tschatzl, brutisso
 2014-10-07 14:54:53 +02:00
Antonios Printezis
da5afa76ab 8058495: G1: normalize names for isHumongous() and friends 
Reviewed-by: tschatzl, brutisso
 2014-09-23 11:43:24 +02:00
John Coomes
fd0e5093ca 8057824: methods to copy allocation context statistics 
Reviewed-by: mikael, jmasa, tschatzl
 2014-09-10 13:01:13 -07:00
John Coomes
40155ae18d 8057818: collect allocation context statistics at gc pauses 
Reviewed-by: mikael, jmasa
 2014-09-10 13:01:13 -07:00
Stefan Johansson
3e6d46d28b 8057658: Enable G1 FullGC extensions 
Refactored the G1 FullGC code to enable it to be extended.

Reviewed-by: mgerdin, brutisso
 2014-09-09 00:05:25 +02:00
Stefan Johansson
f8137659f5 8057536: Refactor G1 to allow context specific allocations 
Splitting out a g1 allocator class to simply specialized allocators which can associate each allocation with a given context.

Reviewed-by: mgerdin, brutisso
 2014-09-05 09:49:19 +02:00
Mikael Gerdin
10379e7e82 8048268: G1 Code Root Migration performs poorly 
Replace G1CodeRootSet with a Hashtable based implementation, merge Code Root Migration phase into Code Root Scanning

Reviewed-by: jmasa, brutisso, tschatzl
 2014-08-29 13:12:21 +02:00
Thomas Schatzl
9086b5795f 8054819: Rename HeapRegionSeq to HeapRegionManager 
Reviewed-by: jwilhelm, jmasa
 2014-08-26 09:36:53 +02:00
Stefan Karlsson
2bf343ea50 8055416: Several vm/gc/heap/summary "After GC" events emitted for the same GC ID 
Reviewed-by: brutisso, ehelin
 2014-08-25 09:10:13 +02:00
Thomas Schatzl
100e51a339 8038423: G1: Decommit memory within heap 
Allow G1 to decommit memory of arbitrary regions within the heap and their associated auxiliary data structures card table, BOT, hot card cache, and mark bitmaps.

Reviewed-by: mgerdin, brutisso, jwilhelm
 2014-08-19 14:09:10 +02:00
Poonam Bajaj
2617d54723 8044406: JVM crash with JDK8 (build 1.8.0-b132) with G1 GC 
Fill the last card that has been allocated into with a dummy object

Reviewed-by: tschatzl, mgerdin
 2014-08-18 19:30:24 -07:00
Thomas Schatzl
2ee5ee89d4 8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data 
Let HeapRegionSeq manage the heap region and auxiliary data to decrease the amount of responsibilities of G1CollectedHeap, and encapsulate this work from other code.

Reviewed-by: jwilhelm, jmasa, mgerdin, brutisso
 2014-08-18 16:10:44 +02:00
Thomas Schatzl
94d0494b27 8054341: Remove some obsolete code in G1CollectedHeap class 
Remove dead code.

Reviewed-by: stefank, brutisso
 2014-08-07 22:28:53 +02:00
Thomas Schatzl
f161bd6d16 8027959: Early reclamation of large objects in G1 
Try to reclaim humongous objects at every young collection after doing a conservative estimate of its liveness.

Reviewed-by: brutisso, mgerdin
 2014-07-23 09:03:32 +02:00
Thomas Schatzl
bc56e061ec 8048112: G1 Full GC needs to support the case when the very first region is not available 
Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett.

Reviewed-by: brutisso
 2014-07-21 10:00:31 +02:00
Stefan Karlsson
1b001a2afd 8049421: G1 Class Unloading after completing a concurrent mark cycle 
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
 2014-07-07 10:12:40 +02:00
Stefan Karlsson
ef1e9b3c80 8049420: Backout 8048248 to correct attribution 
Reviewed-by: ehelin, brutisso
 2014-07-07 12:37:11 +02:00
Stefan Karlsson
8c3aced316 8048248: G1 Class Unloading after completing a concurrent mark cycle 
Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
 2014-07-07 10:12:40 +02:00
Thomas Schatzl
0bd028231f 8035400: Move G1ParScanThreadState into its own files 
Extract the G1ParScanThreadState class from G1CollectedHeap.?pp into its own files.

Reviewed-by: brutisso, mgerdin
 2014-06-26 15:45:07 +02:00
Per Lidén
5e1811cd0e 8044796: G1: Enable G1CollectedHeap::stop() 
Reviewed-by: brutisso, sjohanss
 2014-06-13 13:46:06 +02:00
Goetz Lindenmaier
6e6f0720a9 8042195: Introduce umbrella header orderAccess.inline.hpp 
Reviewed-by: dholmes, kvn, stefank, twisti
 2014-04-29 15:17:27 +02:00
Bengt Rutisson
9968a23667 7132678: G1: verify that the marking bitmaps have no marks for objects over TAMS 
Co-authored-by: Tony Printezis <tony.printezis@oracle.com>
Reviewed-by: jmasa, tschatzl, ehelin
 2014-04-29 09:33:20 +02:00