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51 commits

Author SHA1 Message Date
Bengt Rutisson
8e2f1d5560 8077403: Remove guarantee from GenCollectedHeap::is_in() 
Reviewed-by: mgerdin, jmasa
 2015-04-14 11:24:03 +02:00
Per Lidén
ca9afd25f6 8077413: Avoid use of Universe::heap() inside collectors 
Reviewed-by: stefank, kbarrett
 2015-04-13 15:47:48 +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
ff23a17283 8076231: Remove unused is_in_partial_collection() 
Reviewed-by: brutisso, drwhite
 2015-03-31 08:27:30 +02:00
Marcus Larsson
7727fe0044 8072621: Clean up around VM_GC_Operations 
Reviewed-by: brutisso, jmasa
 2015-02-13 09:48:49 +01:00
Marcus Larsson
20bfd4cf7c 8066566: Refactor ParNewGeneration to contain ParNewTracer 
Reviewed-by: ehelin, kbarrett
 2015-02-11 14:47:21 +01:00
Erik Helin
f3997d8eed 8064721: The card tables only ever need two covering regions 
Reviewed-by: jmasa, tschatzl, kbarrett
 2014-11-18 10:36:42 +01:00
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
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
Jesper Wilhelmsson
ded8b863dd 8042298: Remove the names gen0 and gen1 from the GC code 
Renamed gen0 and gen1 to young and old throughout the GC code.

Reviewed-by: sjohanss, jcoomes
 2014-05-02 02:11:34 +02:00
David Chase
305ec3bd3f 8037816: Fix for 8036122 breaks build with Xcode5/clang 
Repaired or selectively disabled offending formats; future-proofed with additional checking

Reviewed-by: kvn, jrose, stefank
 2014-05-09 16:50:54 -04:00
Erik Helin
853fffb2cb 8036703: Add trace event with statistics for the metaspace chunk free lists 
Reviewed-by: stefank, mgerdin, coleenp, egahlin
 2014-03-18 09:03:28 +01:00
Bengt Rutisson
9b29efeb63 8030177: G1: Enable TLAB resizing 
Reviewed-by: tschatzl, stefank, jmasa
 2014-01-27 13:14:53 +01:00
Jesper Wilhelmsson
81ba2e32c0 8025856: Fix typos in the GC code 
Fix about 440 typos in comments in the VM code

Reviewed-by: mgerdin, tschatzl, coleenp, kmo, jcoomes
 2014-01-23 14:47:23 +01:00
Bengt Rutisson
810bc0c558 8029524: Remove unsused method CollectedHeap::unsafe_max_alloc() 
Reviewed-by: pliden, jmasa
 2013-12-16 08:54:14 +01:00
Jesper Wilhelmsson
0fa3a71c8a 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking 
7057939: jmap shows MaxNewSize=4GB when Java is using parallel collector

Major cleanup of the collectorpolicy classes

Reviewed-by: tschatzl, jcoomes
 2013-11-01 17:09:38 +01:00
Erik Helin
3ea9481c2f 8014659: NPG: performance counters for compressed klass space 
Reviewed-by: mgerdin, coleenp, hseigel, jmasa, ctornqvi
 2013-08-07 16:47:32 +02:00
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
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
Mikael Gerdin
89120e7827 7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine 
Keep a counter of how many times we were stalled by the GC locker, add a diagnostic flag which sets the limit.

Reviewed-by: brutisso, ehelin, johnc
 2013-03-28 10:27:28 +01:00
Thomas Schatzl
e1df78e390 6733980: par compact - TraceGen1Time always shows 0.0000 seconds 
Use the correct collector to retrieve accumulated gen1 trace time

Reviewed-by: johnc, jmasa
 2013-03-14 09:37:38 +01:00
Jon Masamitsu
79c091f287 6976528: PS: assert(!limit_exceeded || softrefs_clear) failed: Should have been cleared 
Reviewed-by: johnc
 2013-03-12 11:00:49 -07:00
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
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 Coomes
5f0143a774 6330863: vm/gc/InfiniteList.java fails intermittently due to timeout 
In some cases, allocate from the old gen before doing a full gc

Reviewed-by: stefank, jmasa
 2012-02-16 13:13:53 -08:00
Antonios Printezis
44b419af51 7099849: G1: include heap region information in hs_err files 
Reviewed-by: johnc, brutisso, poonam
 2011-11-08 00:41:28 -05:00
Stefan Karlsson
5b6ba4e611 7085906: Replace the permgen allocated sentinelRef with a self-looped end 
Remove the sentinelRef and let the last Reference in a discovered chain point back to itself.

Reviewed-by: ysr, jmasa
 2011-09-01 16:18:17 +02:00
Antonios Printezis
937d6ded89 6994322: Remove the is_tlab and is_noref / is_large_noref parameters from the CollectedHeap 
Remove two unused parameters from the mem_allocate() method and update its uses accordingly.

Reviewed-by: stefank, johnc
 2011-06-16 15:51:57 -04:00
John Cuthbertson
b94d0b830c 7004681: G1: Extend marking verification to Full GCs 
Perform a heap verification after the first phase of G1's full GC using objects' mark words to determine liveness. The third parameter of the heap verification routines, which was used in G1 to determine which marking bitmap to use in liveness calculations, has been changed from a boolean to an enum with values defined for using the mark word, and the 'prev' and 'next' bitmaps.

Reviewed-by: tonyp, ysr
 2011-06-14 11:01:10 -07:00
Jon Masamitsu
6819e3739e 7041789: 30% perf regression with c2/arm following 7017732 
Implement a more accurate is_scavengable()

Reviewed-by: stefank, jcoomes, ysr
 2011-05-03 10:30:34 -07:00
Vladimir Kozlov
287139e5a5 7014874: Incorrect COOPs modes on solaris-{sparcv9,amd64} with ParallelGC 
Align old gen size down to keep specified heap size.

Reviewed-by: ysr
 2011-02-08 16:12:16 -08:00
Stefan Karlsson
8006fe8f75 6989984: Use standard include model for Hospot 
Replaced MakeDeps and the includeDB files with more standardized solutions.

Reviewed-by: coleenp, kvn, kamg
 2010-11-23 13:22:55 -08:00
Tom Rodriguez
1571a4a56f 6970683: improvements to hs_err output 
Reviewed-by: kvn, jrose, dholmes, coleenp
 2010-10-21 11:55:10 -07:00
Erik Trimble
ba7c173659 6941466: Oracle rebranding changes for Hotspot repositories 
Change all the Sun copyrights to Oracle copyright

Reviewed-by: ohair
 2010-05-27 19:08:38 -07:00
Jon Masamitsu
f5197d0d36 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit 
Ensure a full GC that clears SoftReferences before throwing an out-of-memory

Reviewed-by: ysr, jcoomes
 2010-04-13 13:52:10 -07:00
Y. Srinivas Ramakrishna
331512606a 6896647: card marks can be deferred too long 
Deferred card marks are now flushed during the gc prologue. Parallel[Scavege,OldGC] and SerialGC no longer defer card marks generated by COMPILER2 as a result of ReduceInitialCardMarks. For these cases, introduced a diagnostic option to defer the card marks, only for the purposes of testing and diagnostics. CMS and G1 continue to defer card marks. Potential performance concern related to single-threaded flushing of deferred card marks in the gc prologue will be addressed in the future.

Reviewed-by: never, johnc
 2010-01-13 15:26:39 -08:00
Y. Srinivas Ramakrishna
928ac69fcd 6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning 
6889757: G1: enable card mark elision for initializing writes from compiled code (ReduceInitialCardMarks)

Defer the (compiler-elided) card-mark upon a slow-path allocation until after the store  and before the next subsequent safepoint; G1 now answers yes to can_elide_tlab_write_barriers().

Reviewed-by: jcoomes, kvn, never
 2009-10-16 02:05:46 -07:00
John R Rose
e261aecad8 6863023: need non-perm oops in code cache for JSR 292 
Make a special root-list for those few nmethods which might contain non-perm oops.

Reviewed-by: twisti, kvn, never, jmasa, ysr
 2009-09-15 21:53:47 -07:00
Y. Srinivas Ramakrishna
075c1335cb 6700789: G1: Enable use of compressed oops with G1 heaps 
Modifications to G1 so as to allow the use of compressed oops.

Reviewed-by: apetrusenko, coleenp, jmasa, kvn, never, phh, tonyp
 2009-07-14 15:40:39 -07:00
John R Rose
cfb08c72ba 6814659: separable cleanups and subroutines for 6655638 
Preparatory but separable changes for method handles

Reviewed-by: kvn, never
 2009-03-20 23:19:36 -07:00
Vladimir Kozlov
69f9ddee90 6791178: Specialize for zero as the compressed oop vm heap base 
Use zero based compressed oops if java heap is below 32gb and unscaled compressed oops if java heap is below 4gb.

Reviewed-by: never, twisti, jcoomes, coleenp
 2009-03-12 10:37:46 -07:00
John Coomes
2e52e9dff2 6716466: par compact - remove VerifyParallelOldWithMarkSweep code 
Reviewed-by: jmasa
 2008-09-30 11:49:31 -07:00
Igor Veresov
4204f82a1a 6740923: NUMA allocator: Ensure the progress of adaptive chunk resizing 
Treat a chuck where the allocation has failed as fully used.

Reviewed-by: ysr
 2008-09-27 00:33:13 -07:00
Jon Masamitsu
b8633a3b01 Merge 2008-07-28 15:30:23 -07:00
Coleen Phillimore
20dba03e99 6716785: implicit null checks not triggering with CompressedOops 
Allocate alignment-sized page(s) below java heap so that memory accesses at heap_base+1page give signal and cause an implicit null check

Reviewed-by: kvn, jmasa, phh, jcoomes
 2008-07-19 17:38:22 -04:00
Jon Masamitsu
18dbebd143 6672698: mangle_unused_area() should not remangle the entire heap at each collection 
Maintain a high water mark for the allocations in a space and mangle only up to that high water mark.

Reviewed-by: ysr, apetrusenko
 2008-07-09 15:08:55 -07:00
Xiomara Jayasena
c96a95c4b8 6719955: Update copyright year 
Update copyright year for files that have been modified in 2008

Reviewed-by: ohair, tbell
 2008-07-02 12:55:16 -07:00
Andrey Petrusenko
252a10cf1a 6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen 
Reviewed-by: ysr, jmasa
 2008-04-01 15:13:47 +04:00
Jon Masamitsu
6c0c606249 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO 
Default values set by cms ergonomics are set with FLAG_SET_DEFAULT so down stream the values look like the default values and affect how later parameters are set.  Set these values with FLAG_SET_ERGO instead and adjust how later parameters are interpreted.

Reviewed-by: iveresov, apetrusenko, pbk, ysr
 2008-03-02 16:10:12 -08:00