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114 Commits

Author SHA1 Message Date
Jon Masamitsu
d0aa753d99 8022817: CMS should not shrink if compaction was not done 
Reviewed-by: ysr, mgerdin
 2013-08-16 06:12:46 -07:00
Jon Masamitsu
9354b09906 8021809: Partitioning based on eden sampling during allocation not reset correctly 
Reviewed-by: ysr, hiroshi
 2013-08-14 19:52:16 -07:00
Stefan Karlsson
70f22c649b 8022880: False sharing between PSPromotionManager instances 
Pad the PSPromotionManager instances in the manager array.

Reviewed-by: brutisso, jmasa
 2013-05-31 14:32:44 +02:00
Hiroshi Yamauchi
6060a2999c 6412968: CMS Long initial mark pauses 
Reviewed-by: rasbold, tschatzl, jmasa
 2013-07-25 11:07:23 -07:00
Hiroshi Yamauchi
5c9dbad612 6990419: CMS Remaining work for 6572569: consistently skewed work distribution in (long) re-mark pauses 
Reviewed-by: rasbold, tschatzl, jmasa
 2013-07-23 09:49:11 -07:00
Jiangli Zhou
b454ece6d7 7133260: AllocationProfiler uses space in metadata and doesn't seem to do anything useful 
Remove -Xaprof and Klass::_alloc_count & ArrayKlass::_alloc_size.

Reviewed-by: stefank, coleenp
 2013-07-03 17:26:59 -04:00
Staffan Larsen
718f3252f6 8005849: JEP 167: Event-Based JVM Tracing 
Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com>
Co-authored-by: Bengt Rutisson <bengt.rutisson@oracle.com>
Co-authored-by: Calvin Cheung <calvin.cheung@oracle.com>
Co-authored-by: Erik Gahlin <erik.gahlin@oracle.com>
Co-authored-by: Erik Helin <erik.helin@oracle.com>
Co-authored-by: Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>
Co-authored-by: Keith McGuigan <keith.mcguigan@oracle.com>
Co-authored-by: Mattias Tobiasson <mattias.tobiasson@oracle.com>
Co-authored-by: Markus Gronlund <markus.gronlund@oracle.com>
Co-authored-by: Mikael Auno <mikael.auno@oracle.com>
Co-authored-by: Nils Eliasson <nils.eliasson@oracle.com>
Co-authored-by: Nils Loodin <nils.loodin@oracle.com>
Co-authored-by: Rickard Backman <rickard.backman@oracle.com>
Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
Reviewed-by: acorn, coleenp, sla
 2013-06-10 11:30:51 +02:00
Bengt Rutisson
0be2f273c7 8014971: Minor code cleanup of the freelist management 
Reviewed-by: jwilhelm, jmasa, tschatzl
 2013-05-22 08:04:58 +02:00
Thomas Schatzl
8d53e75550 6843347: Boundary values in some public GC options cause crashes 
Setting some public integer options to specific values causes crashes or undefined GC behavior. This patchset adds the necessary argument checking for these options.

Reviewed-by: jmasa, brutisso
 2013-05-15 11:05:09 +02:00
Jon Masamitsu
bbff951f67 8013184: CMS: Call reset_after_compaction() only if a compaction has been done 
Reviewed-by: mgerdin, johnc, tschatzl
 2013-05-08 17:12:52 -07:00
Jon Masamitsu
973d0400c4 8013032: CMS: assert(used() == used_after_gc && used_after_gc <= capacity()) failed: used: 0 used_after_gc: 292080 capacity: 1431699456 
Reviewed-by: tschatzl, mgerdin, johnc
 2013-05-08 16:28:03 -07:00
Stefan Karlsson
ad20a6bd76 8013160: NPG: Remove unnecessary mark stack draining after CodeCache::do_unloading 
Reviewed-by: coleenp, mgerdin
 2013-04-26 10:40:36 +02:00
Stefan Karlsson
f0ae855b07 8013132: Add a flag to turn off the output of the verbose verification code 
Reviewed-by: johnc, brutisso
 2013-04-24 20:13:37 +02:00
Jon Masamitsu
ddbf6ad621 8012111: Remove warning about CMS generation shrinking 
Reviewed-by: johnc, brutisso, stefank
 2013-04-22 22:00:03 -07:00
David Chase
55c4ce1ca1 7104565: trim jprt build targets 
Remove JPRT debug builds, remove -DDEBUG -DFASTDEBUG and use ASSERT instead in sources

Reviewed-by: dholmes, kvn, coleenp
 2013-04-12 15:53:30 -07:00
Stefan Karlsson
e96efdaa1a 8011872: Include Bit Map addresses in the hs_err files 
Reviewed-by: brutisso, jmasa
 2013-04-10 14:26:49 +02:00
Jon Masamitsu
fabb8c6e25 8008508: CMS does not correctly reduce heap size after a Full GC 
Reviewed-by: johnc, ysr
 2013-02-11 10:31:56 -08:00
Mikael Gerdin
a4a4c34e96 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used 
Call purge() on CLDG after sweep(), reorder purge() call in GenCollectedHeap

Reviewed-by: jmasa, stefank
 2013-03-14 10:54:44 +01:00
Thomas Schatzl
401d1f315d 8008684: CMS: concurrent phase start markers should always be printed 
Print the concurrent phase start markers for CMS when PrintGCDetails is enabled, not only if both PrintGCDetails and PrintGCTimeStamps are.

Reviewed-by: mgerdin, jmasa
 2013-03-12 15:10:39 +01:00
Kevin Walls
a181e6d505 8009723: CMS logs "concurrent mode failure" twice when using (disabling) -XX:-UseCMSCompactAtFullCollection 
Reviewed-by: jwilhelm, ehelin, brutisso
 2013-03-11 12:56:00 +00:00
Jesper Wilhelmsson
2c17d50a8b 8006432: Ratio flags should be unsigned 
Flags changed to be of uintx type

Reviewed-by: johnc, tamao
 2013-02-07 15:51:25 +01:00
Karen Kinnear
706efde6df Merge 2013-01-21 16:11:24 -05:00
Harold Seigel
68f3dd76c9 7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems 
Define jlong as long on all LP64 platforms and add JLONG_FORMAT macro.

Reviewed-by: dholmes, coleenp, mikael, kvn
 2013-01-17 10:25:16 -05:00
Jon Masamitsu
7fb60025ee 8005672: Clean up some changes to GC logging with GCCause's 
Reviewed-by: johnc, ysr
 2013-01-04 17:04:46 -08:00
Jon Masamitsu
37bddeb62b 7045397: NPG: Add freelists to class loader arenas 
Reviewed-by: coleenp, stefank, jprovino, ohair
 2012-09-18 23:35:42 -07:00
Jon Masamitsu
ea25b80875 Merge 2012-10-17 13:59:57 -07:00
John Cuthbertson
9abdcd4a3c 8000831: Heap verification output incorrect/incomplete 
Restore non-silent output of heap verification.

Reviewed-by: ysr, brutisso, jmasa
 2012-10-15 10:02:42 -07:00
Roland Westrelin
61eb5a0549 7054512: Compress class pointers after perm gen removal 
Support of compress class pointers in the compilers.

Reviewed-by: kvn, twisti
 2012-10-09 10:11:38 +02:00
Bengt Rutisson
fcae0353d2 7200470: KeepAliveClosure not needed in CodeCache::do_unloading 
Removed the unused keep_alive parameter

Reviewed-by: stefank, dholmes, kamg, coleenp
 2012-09-25 14:58:12 +02:00
John Cuthbertson
e78edc79b7 7193946: Move warnings associated with UseMemSetInBOT flag 
The warnings associated with the UseMemSetInBOT flag are duplicated in CMS and G1. The separate warnings have been removed and single instance of the warning has been placed in a common location.

Reviewed-by: brutisso, ysr
 2012-09-19 15:48:02 -07:00
Bengt Rutisson
a08d48f9b1 7198130: G1: PrintReferenceGC output comes out of order 
Move the first part of the GC logging, including timestamp, to the start of the GC

Reviewed-by: johnc, jwilhelm
 2012-09-17 10:33:13 +02:00
Jon Masamitsu
5c58d27aac 6964458: Reimplement class meta-data storage to use native memory 
Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes

Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Tom Rodriguez <tom.rodriguez@oracle.com>
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
 2012-09-01 13:25:18 -04:00
Zhengyu Gu
a39b17624a 6995781: Native Memory Tracking (Phase 1) 
7151532: DCmd for hotspot native memory tracking

Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd

Reviewed-by: acorn, coleenp, fparain
 2012-06-28 17:03:16 -04:00
Bengt Rutisson
eba9965d54 7166894: Add gc cause to GC logging for all collectors 
Reviewed-by: mgerdin, johnc
 2012-05-15 10:25:06 +02:00
Jon Masamitsu
b63f7f3a18 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* 
Fix naming style to be consistent with the predominant hotspot style.

Reviewed-by: ysr, brutisso
 2012-04-25 09:55:55 -07:00
Coleen Phillimore
f5558edf7b 7131629: Generalize the CMS free list code 
Make the FreeChunk, FreeList, TreeList, and BinaryTreeDictionary classes usable outside CMS.

Reviewed-by: brutisso, johnc, jwilhelm
 2012-03-29 19:46:24 -07:00
Bengt Rutisson
f695b75d78 4988100: oop_verify_old_oop appears to be dead 
Removed oop_verify_old_oop and allow_dirty. Also reviewed by: alexlamsl@gmail.com

Reviewed-by: jmasa, jwilhelm
 2012-04-16 08:57:18 +02:00
John Cuthbertson
fa9d6d7682 7129514: time warp warnings after 7117303 
Replace calls to os::javaTimeMillis() that are used to update the milliseconds since the last GC to an equivalent that uses a monotonically non-decreasing time source.

Reviewed-by: ysr, jmasa
 2012-01-18 09:50:16 -08:00
Stefan Karlsson
4ad03aebbb 7134655: Crash in reference processing when doing single-threaded remarking 
Temporarily disabled multi-threaded reference discovery when entering a single-threaded remark phase.

Reviewed-by: brutisso, tonyp, jmasa, jcoomes
 2012-01-27 14:14:50 +01:00
Jon Masamitsu
0ebc10bb13 7121618: Change type of number of GC workers to unsigned int 
Change variables representing the number of GC workers to uint from int and size_t.  Change the parameter in work(int i) to work(uint worker_id).

Reviewed-by: brutisso, tonyp
 2011-12-14 13:34:57 -08:00
Stefan Karlsson
fcdf022370 7112034: Parallel CMS fails to properly mark reference objects 
Enabled reference processing when work stealing during concurrent marking

Reviewed-by: jmasa, brutisso
 2011-11-28 10:19:26 +01:00
Jon Masamitsu
404bb0d0ac 7106024: CMS: Removed unused code for precleaning in remark phase 
Remove dead code.

Reviewed-by: stefank, ysr
 2011-11-22 14:18:39 -08:00
Jon Masamitsu
15070123fa 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads 
Select number of GC threads dynamically based on heap usage and number of Java threads

Reviewed-by: johnc, ysr, jcoomes
 2011-08-09 10:16:01 -07:00
John Cuthbertson
1b62d10b4b 6484982: G1: process references during evacuation pauses 
G1 now uses two reference processors - one is used by concurrent marking and the other is used by STW GCs (both full and incremental evacuation pauses). In an evacuation pause, the reference processor is embedded into the closures used to scan objects. Doing so causes causes reference objects to be 'discovered' by the reference processor. At the end of the evacuation pause, these discovered reference objects are processed - preserving (and copying) referent objects (and their reachable graphs) as appropriate.

Reviewed-by: ysr, jwilhelm, brutisso, stefank, tonyp
 2011-09-22 10:57:37 -07:00
Krystal Mok
24e8905fdf 7072527: CMS: JMM GC counters overcount in some cases 
Avoid overcounting when CMS has concurrent mode failure.

Reviewed-by: ysr
 2011-08-02 14:37:35 +01:00
John Coomes
73687afa5e 7061204: clean the chunk table synchronously in embedded builds 
Reviewed-by: dholmes, never, jwilhelm, kvn
 2011-07-06 12:28:07 -07:00
Y. Srinivas Ramakrishna
ed15a87975 7042740: CMS: assert(n> q) failed: Looping at: ... blockOffsetTable.cpp:557 
Do a one-step look-ahead, when sweeping free or garbage blocks, to avoid overstepping sweep limit, which may become a non-block-boundary because of a heap expansion delta coalescing with a previously co-terminal free block.

Reviewed-by: brutisso, tonyp
 2011-05-23 16:42:14 -07:00
Frederic Parain
b38843c8d9 7036199: Adding a notification to the implementation of GarbageCollectorMXBeans 
Add a notification to the GarbageCollectorMXBeans

Reviewed-by: acorn, mchung
 2011-05-12 10:30:11 -07:00
Y. Srinivas Ramakrishna
d86311b13c 7039089: G1: changeset for 7037276 broke heap verification, and related cleanups 
In G1 heap verification, we no longer scan perm to G1-collected heap refs as part of process_strong_roots() but rather in a separate explicit oop iteration over the perm gen. This preserves the original perm card-marks. Added a new assertion in younger_refs_iterate() to catch a simple subcase where the user may have forgotten a prior save_marks() call, as happened in the case of G1's attempt to iterate perm to G1 refs when verifying the heap before exit. The assert was deliberately weakened for ParNew+CMS and will be fixed for that combination in a future CR. Also made some (non-G1) cleanups related to code and comments obsoleted by the migration of Symbols to the native heap.

Reviewed-by: iveresov, jmasa, tonyp
 2011-04-26 21:17:24 -07:00
John Coomes
fe899cc10d 6962931: move interned strings out of the perm gen 
Reviewed-by: never, coleenp, ysr, jwilhelm
 2011-03-22 13:36:33 -07:00