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1104 Commits

Author SHA1 Message Date
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
Marcus Larsson
59bc281604 8035729: Code using assert(is_oop_or_null) needs better error messages 
Modified error messages to include the oops

Reviewed-by: stefank, tschatzl
 2014-09-18 11:04:00 +02:00
Marcus Larsson
d90a333e5b 8053998: Hot card cache flush chunk size too coarse grained 
Changed the chunk size to a smaller fixed number.

Reviewed-by: tschatzl, mgerdin
 2014-09-18 11:27:59 +02:00
Marcus Larsson
f6ab247c45 8055091: CollectedHeap::_reserved usage should be cleaned up 
Added an initialization function for _reserved.

Reviewed-by: mgerdin, jwilhelm
 2014-09-18 12:45:45 +02:00
Joseph Provino
bc07a22d12 8058534: Remove HeapRegion::_orig_end 
Also reviewed by kim.barrett@oracle.com

Reviewed-by: tonyp, brutisso, tschatzl
 2014-09-19 09:23:55 +02:00
Thomas Schatzl
d840f222df 8057143: Incomplete renaming of variables containing "hrs" to "hrm" related to HeapRegionSeq 
Fixup the remaining variable names.

Reviewed-by: tonyp, jwilhelm
 2014-09-03 17:01:57 +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
146c4f6999 Merge 2014-08-28 17:06:29 +02:00
Thomas Schatzl
344be39551 8054808: Bitmap verification sometimes fails after Full GC aborts concurrent mark 
The verification code that checked whether no bitmap mark had been found re-read HeapRegion::end() after the check on the bitmap. Concurrent humongous object allocation could have changed HeapRegion::end() in the meantime. Fix this by using the actual end of the region instead of HeapRegion::end() for comparison.

Reviewed-by: brutisso, jmasa
 2014-08-28 17:05:41 +02:00
Stefan Johansson
204425b78f 8028787: tmtools/jstat/gcoldcapacity/jstat_gcoldcapacity02 fails nsk.share.Failure: OGC < OGCMN in RT_Baseline 
Passing the min and max size of the generation into the counter instead of using the space to estimate sizes.

Reviewed-by: stefank, tschatzl
 2014-08-27 09:47:06 +02:00
Bengt Rutisson
663618a6a1 Merge 2014-08-27 09:22:22 +00:00
Bengt Rutisson
bbe82cb85b 8055816: Remove dead code in g1BlockOffsetTable 
Reviewed-by: tschatzl, mgerdin
 2014-08-27 10:51:08 +02:00
Thomas Schatzl
b89a9d94b5 8056043: Heap does not shrink within the heap after JDK-8038423 
Enable shrinking within the heap by removing some code added for JDK-8054818. Enable the test case that checks that again too.

Reviewed-by: jwilhelm, jmasa
 2014-08-27 08:59:05 +02:00
Thomas Schatzl
f789d43b8e 8055919: Remove dead code in G1 concurrent marking code 
Reviewed-by: jmasa, jwilhelm
 2014-08-26 14:15:50 +02:00
Thomas Schatzl
9086b5795f 8054819: Rename HeapRegionSeq to HeapRegionManager 
Reviewed-by: jwilhelm, jmasa
 2014-08-26 09:36:53 +02:00
Stefan Karlsson
57cb2ef95e Merge 2014-08-25 07:35:36 +00:00
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
Bengt Rutisson
e1cf783e06 8055818: Remove PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC from g1BlockOffsetTable.cpp 
Reviewed-by: stefank, mgerdin
 2014-08-25 08:27:19 +02:00
Leonid Mesnik
6715fc0bed 8055098: WB API should be extended to provide information about size and age of object 
Extend the WhiteBox API to provide information about the size and age of objects. Further add a mechanism to trigger a young GC.

Reviewed-by: tschatzl, sjohanss
 2014-08-21 16:44:41 +02:00
Thomas Schatzl
ad89797fbd 8055635: Missing include in g1RegionToSpaceMapper.hpp results in unresolved symbol of fastdebug build without precompiled headers 
Reviewed-by: mgerdin, ehelin
 2014-08-20 15:04:39 +02:00
Thomas Schatzl
7fe4686591 8055525: Bigapp weblogic+medrec fails to startup after JDK-8038423 
If large pages are enabled and configured in Linux, the VM always pre-commits the entire space. The VM fails verification of the commit of the initial heap because some internal data structure marked all memory pages of the heap as committed during initialization. This makes the code think that we attempted a double-commit during first allocation of the heap. Remove the initial marking of memory pages of the heap to committed.

Reviewed-by: mgerdin
 2014-08-20 14:34:40 +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
Jon Masamitsu
9b3282f79b Merge 2014-08-15 09:06:17 -07:00
Daniel D. Daugherty
8937a201e0 Merge 2014-08-13 13:29:45 -07:00
Zhengyu Gu
d595244c27 Merge 2014-08-11 07:20:39 -07:00
Zhengyu Gu
f0cf82f571 8046598: Scalable Native memory tracking development 
Enhance scalability of native memory tracking

Reviewed-by: coleenp, ctornqvi, gtriantafill
 2014-08-07 12:18:58 -07:00
Marcus Larsson
ae0190f121 8051837: Remove temporary G1UseParallelRSetUpdating and G1UseParallelRSetScanning flags 
Reviewed-by: stefank, tschatzl
 2014-08-07 09:35:08 +02:00
Stefan Karlsson
ef47f5dc0e 8048269: Add flag to turn off class unloading after G1 concurrent mark 
Added -XX:+/-ClassUnloadingWithConcurrentMark

Reviewed-by: jmasa, brutisso, mgerdin
 2014-08-06 09:55:16 +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
24bee82e67 8052170: G1 asserts at collection exit with -XX:-G1DeferredRSUpdate 
Do not try to verify timing measures for the redirty logged cards phase when it is not executed.

Reviewed-by: brutisso, jmasa
 2014-08-07 22:28:16 +02:00
Jon Masamitsu
5f2c33e42b 8031323: Optionally align objects copied to survivor spaces 
Reviewed-by: brutisso, tschatzl
 2014-08-01 15:40:12 -07:00
Thomas Schatzl
a959c0971e 8051973: Eager reclaim leaves marks of marked but reclaimed objects on the next bitmap 
Eager reclaim also needs to clear marks of eagerly reclaimed regions if they have already been marked during concurrent mark.

Reviewed-by: jmasa
 2014-07-31 09:23:24 +02:00
Martin Doerr
071c3a3924 8050973: CMS/G1 GC: add missing Resource and Handle mark 
Add Resource/HandleMark in the work() method of some AbstractGangTask to reclaim these resources earlier.

Reviewed-by: tschatzl, goetz
 2014-07-29 10:26:09 +02:00
Jon Masamitsu
7774fe7ed1 Merge 2014-07-24 15:06:36 -07:00
Jon Masamitsu
e242f23105 Merge 2014-07-23 14:06:28 -07:00
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
Thomas Schatzl
2e37a94622 8048085: Aborting marking just before remark results in useless additional clearing of the next mark bitmap 
Skip clearing the next bitmap if we just recently aborted since the full GC already clears this bitmap.

Reviewed-by: brutisso
 2014-07-21 09:59:46 +02:00
Thomas Schatzl
1ad5cdb4a4 8049051: Use of during_initial_mark_pause() in G1CollectorPolicy::record_collection_pause_end() prevents use of seperate object copy time prediction during marking 
Replaced use of during_initial_mark_pause() with the variable last_pause_included_initial_mark that holds the real old value of _during_initial_mark_pause.

Reviewed-by: brutisso, ehelin
 2014-07-21 09:59:37 +02:00
Serguei Spitsyn
b0367c3bea Merge 2014-07-18 23:53:59 -07:00
Coleen Phillimore
3f0a945468 8004128: NPG: remove stackwalking in Threads::gc_prologue and gc_epilogue code 
Remove bcx and mdx handling.  We no longer have to convert bytecode pointers to indices for GC since Methods aren't moved.

Reviewed-by: mgerdin, kvn
 2014-07-17 15:45:46 -04:00
Volker Simonis
c17cd0d39f 8050228: Rename 'rem_size' in compactibleFreeListSpace.cpp because of name clashes on AIX 
Reviewed-by: dholmes, jmasa
 2014-07-17 11:32:09 +02:00
Jon Masamitsu
5de58bc127 Merge 2014-07-11 11:14:40 -07:00
Jon Masamitsu
2506e35cc0 Merge 2014-07-11 05:59:08 -07:00
Stefan Karlsson
a5b4cec253 8049831: Metadata Full GCs are not triggered when CMSClassUnloadingEnabled is turned off 
Reviewed-by: brutisso, tschatzl, ehelin, jmasa, dfazunen
 2014-07-11 09:07:23 +02:00
Jon Masamitsu
fbe6d80096 Merge 2014-07-10 13:39:18 -07:00
Erik Helin
b77bc85799 8049426: Minor cleanups after G1 class unloading 
Reviewed-by: stefank, brutisso
 2014-07-09 16:44:30 +02:00
Frederic Parain
5a8cc5f33d 8047714: Fix for JDK-6546236 made Solaris os::yield() a no-op 
Reviewed-by: hseigel, lfoltan
 2014-07-08 08:04:06 -07:00