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619 Commits

Author SHA1 Message Date
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
Erik Helin
b77bc85799 8049426: Minor cleanups after G1 class unloading 
Reviewed-by: stefank, brutisso
 2014-07-09 16:44:30 +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
aec070cb69 8040977: G1 crashes when run with -XX:-G1DeferredRSUpdate 
When G1 is run with -XX:-G1DeferredRSUpdate, the VM crashes because of wrong initialization order of member variables. The change makes the initalization explicit, not relying on initialization order any more.

Reviewed-by: brutisso, mgerdin
 2014-06-26 16:01:07 +02:00
Thomas Schatzl
b4e0c547b8 8035401: Fix visibility of G1ParScanThreadState members 
After JDK-8035400 there were several opportunities to fix the visibility of several members of the G1ParScanThreadState class.

Reviewed-by: brutisso, mgerdin
 2014-06-26 15:48:05 +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
Mikael Gerdin
1e1ef4f73f 8047818: G1 HeapRegions can no longer be ContiguousSpaces 
Change parent of G1OffsetTableContigSpace to CompactibleSpace, reimplement missing functionality

Reviewed-by: stefank, jmasa, tschatzl
 2014-06-26 11:36:58 +02:00
Mikael Gerdin
ebdab477c7 8048214: Linker error when compiling G1SATBCardTableModRefBS after include order changes 
Reviewed-by: stefank, brutisso, tschatzl
 2014-06-26 13:20:18 +02:00
Mikael Gerdin
83303777f7 8047821: G1 Does not use the save_marks functionality as intended 
Rename save_marks to record_top_and_timestamp and remove som unused but related methods

Reviewed-by: stefank, ehelin
 2014-06-26 10:00:00 +02:00
Mikael Gerdin
cfa1c5e67c 8047820: G1 Block offset table does not need to support generic Space classes 
Reviewed-by: tschatzl, stefank
 2014-06-25 16:53:13 +02:00
Mikael Gerdin
5b7c529bb2 8047819: G1 HeapRegionDCTOC does not need to inherit ContiguousSpaceDCTOC 
Reviewed-by: stefank, tschatzl
 2014-06-25 10:55:10 +02:00
Stefan Karlsson
24fcad36b4 8047323: Remove unused _copy_metadata_obj_cl in G1CopyingKeepAliveClosure 
Reviewed-by: mgerdin, tschatzl
 2014-06-25 08:28:01 +02:00
Per Lidén
d0e17d1ff0 8046231: G1: Code root location ... from nmethod ... not in strong code roots for region 
Reviewed-by: tschatzl, ehelin
 2014-06-23 16:43:41 +02:00
Goetz Lindenmaier
8e7c8f1d88 8044775: Improve usage of umbrella header atomic.inline.hpp 
Reviewed-by: stefank, kvn
 2014-06-04 11:56:44 +02:00
Bengt Rutisson
9672a26d51 8043607: Add a GC id as a log decoration similar to PrintGCTimeStamps 
Reviewed-by: jwilhelm, ehelin, tschatzl
 2014-06-19 13:31:14 +02:00
Dan Horak
88577971d0 8043722: Swapped usage of idx_t and bm_word_t types in parMarkBitMap.cpp 
Clean up usage of idx_t and uintptr_t when using it in conjunction with BitMap::set_map(), casting to the appropriate type. Fixes compilation on S390.

Reviewed-by: tschatzl
 2014-06-18 13:25:40 +02:00
Per Lidén
5e1811cd0e 8044796: G1: Enable G1CollectedHeap::stop() 
Reviewed-by: brutisso, sjohanss
 2014-06-13 13:46:06 +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
Per Lidén
9c1843a7c3 8044768: Backout fix for JDK-8040807 
Reviewed-by: brutisso, ehelin
 2014-06-04 14:16:20 +02:00
Bengt Rutisson
f013a5db3b Merge 2014-06-03 09:34:04 +00:00
Bengt Rutisson
426151a22e 8043239: G1: Missing post barrier in processing of j.l.ref.Reference objects 
Removed all write barriers during reference processing and added explicit write barriers when iterating through the discovered list.

Reviewed-by: pliden, jmasa, tschatzl
 2014-06-03 10:44:36 +02:00
Per Lidén
2652623308 8040807: G1: Enable G1CollectedHeap::stop() 
Reviewed-by: brutisso, jmasa, tschatzl
 2014-06-03 10:37:46 +02:00
Christian Thalinger
67ad89efd5 Merge 2014-05-22 16:26:05 -07:00
Jon Masamitsu
6fc7041617 Merge 2014-05-22 06:39:47 -07:00
Per Lidén
eddf95338d 8039042: G1: Phantom zeros in cardtable 
Reviewed-by: tschatzl, mgerdin
 2014-05-20 10:24:30 +02:00
Jon Masamitsu
92baa3214c Merge 2014-05-19 08:09:35 -07:00
Coleen Phillimore
c336175c94 8038212: Method::is_valid_method() check has performance regression impact for stackwalking 
Only prune metaspace virtual spaces at safepoint so walking them is safe outside a safepoint.

Reviewed-by: mgerdin, mgronlun, hseigel, stefank
 2014-05-15 18:23:26 -04:00
Per Lidén
04341bfffb 8040804: G1: Concurrent mark stuck in loop calling os::elapsedVTime() 
Reviewed-by: brutisso, tschatzl
 2014-05-14 14:32:23 +02:00
Per Lidén
3f35cb0ca0 8040803: G1: Concurrent mark hangs when mark stack overflows 
Reviewed-by: brutisso, ehelin
 2014-05-14 13:32:44 +02:00
Coleen Phillimore
388434f387 Merge 2014-05-12 09:47:57 -04:00
Jon Masamitsu
c69251b879 Merge 2014-05-09 19:47:41 -07:00
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
Christian Thalinger
b2d6f9f78a Merge 2014-05-08 15:08:45 -07:00
Goetz Lindenmaier
fb62773268 8042737: Introduce umbrella header prefetch.inline.hpp 
Reviewed-by: twisti, stefank
 2014-05-08 15:37:17 +02:00
Andreas Sjoberg
09c2deeb5a 8042474: Clean up duplicated code in RSHashTable 
Removed duplicate code in RSHashTable to fetch SparsePRTEntries

Reviewed-by: tschatzl, brutisso
 2014-05-08 10:29:17 +02:00
Gerard Ziemski
ed9c096396 8038654: Separate SymbolTable and StringTable code 
Refactor stringTable class out of symbolTable, making sure all includes are minimal set and are sorted.

Reviewed-by: coleenp, stefank
 2014-05-07 14:16:45 -05:00
Daniel D. Daugherty
0b8b6462e4 Merge 2014-05-02 11:06:26 -07:00
Zhengyu Gu
16a3e2f16d 6885993: Named Thread: introduce print() and print_on(outputStream* st) methods 
Eliminating duplicated code by introducing print_on(outputStream* st) methods in NamedThread

Reviewed-by: twisti, coleenp, dholmes
 2014-05-01 05:52:28 -07:00
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
Thomas Schatzl
1653234dda 8040792: G1: Memory usage calculation uses sizeof(this) instead of sizeof(classname) 
A few locations in the code use sizeof(this) which returns the size of the pointer instead of sizeof(classname) which returns the size of the sum of its members. This change fixes these errors and adds a few tests.

Reviewed-by: mgerdin, brutisso
 2014-04-22 11:10:12 +02:00
Per Lidén
820ae7109e 8040245: G1: VM hangs during shutdown 
Temporarily disable the shutdown of the concurrent GC threads introduced in JDK-8037112

Reviewed-by: brutisso, tschatzl, jmasa
 2014-04-17 18:47:15 +02:00
Bengt Rutisson
5d967f0aea 8040722: G1: Clean up usages of heap_region_containing 
Reviewed-by: tschatzl, jmasa
 2014-04-17 15:57:02 +02:00
Thomas Schatzl
69c3c31317 8040002: Clean up code and code duplication in re-diryting cards for verification 
Card re-dirtying code for verification and actual redirtying uses two different, almost completely identical card closures. Also the verification code still assumes a perm gen.

Reviewed-by: brutisso, jmasa
 2014-04-16 16:47:02 +02:00
Thomas Schatzl
c5ef16027b 8019342: G1: High "Other" time most likely due to card redirtying 
Parallelize card redirtying to decrease the time it takes.

Reviewed-by: brutisso
 2014-04-16 16:46:58 +02:00