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956 Commits

Author SHA1 Message Date
Thomas Schatzl
cde8aa670b 8035815: Cache-align and pad the from card cache 
The from card cache is a very frequently accessed data structure. It is essentially a 2d array of per-region values, one row of values for every GC thread. Pad and align the data structure to avoid false sharing.

Reviewed-by: stefank
 2014-03-17 10:12:47 +01:00
Thomas Schatzl
329e55e7b0 8035406: Improve data structure for Code Cache remembered sets 
Change the code cache remembered sets data structure from a GrowableArray to a chunked list of nmethods. This makes the data structure more amenable to parallelization, and decreases freeing time.

Reviewed-by: mgerdin, brutisso
 2014-03-17 10:12:21 +01:00
Bengt Rutisson
c88e3def4d 8034079: G1: Refactor the HeapRegionSet hierarchy 
Reviewed-by: tschatzl, pliden
 2014-03-14 10:15:46 +01:00
Jon Masamitsu
8c7d064ee8 7098155: Resize young gen at full collections for UseParallelGC 
Reviewed-by: tschatzl
 2014-03-05 07:34:35 -08:00
Stefan Johansson
b1cfdfafe2 8028498: runtime/SharedArchiveFile/CdsDifferentObjectAlignment.java asserts in RT_Baseline 
Preventing GCs to occur before VM is completely initialized. This was previously partly done by one part of the GC locker which not was removed.

Reviewed-by: coleenp, pliden
 2014-02-13 10:05:03 +01:00
Stefan Karlsson
a8f01c3f99 8038630: Remove ExtendedOopClosure::prefetch_style() 
Reviewed-by: coleenp, jmasa
 2014-03-28 14:15:03 +01:00
Stefan Karlsson
f2de069dc2 8038628: Remove unused Closure::abort() 
Reviewed-by: coleenp, jmasa
 2014-03-28 14:03:11 +01:00
Mikael Gerdin
1fdc7cd78f 8038405: Clean up some virtual fucntions in Space class hierarchy 
Get rid of some duplicated implementations and change nonsense implementations to pure virtuals

Reviewed-by: stefank, jmasa
 2014-03-12 15:25:35 +01:00
Mikael Gerdin
c62c16f94a 8038412: Move object_iterate_careful down from Space to ContigousSpace and CFLSpace 
Only declare the functions where they are actually needed.

Reviewed-by: tschatzl, stefank
 2014-03-12 17:13:48 +01:00
Mikael Gerdin
e72dd1b433 8038404: Move object_iterate_mem from Space to CMS since it is only ever used by CMS 
Reviewed-by: brutisso, tschatzl, stefank
 2014-03-12 15:22:45 +01:00
Erik Helin
a45b9ead44 Merge 2014-02-25 11:02:11 +01:00
Thomas Schatzl
7de1730b10 8034948: Back out JDK-6976350 since it does not fix any issue 
Revert JDK-6976350 because it does not improve PLAB fragmentation. To the contrary, it tends to increase the amount of wasted space with many threads.

Reviewed-by: brutisso
 2014-02-24 10:45:15 +01:00
Thomas Schatzl
2ae60596ed 8035329: Move G1ParCopyClosure::copy_to_survivor_space into G1ParScanThreadState 
Move G1ParCopyClosure::copy_to_survivor_space to decrease code size.

Reviewed-by: stefank, jmasa
 2014-02-24 09:41:04 +01:00
Thomas Schatzl
dbc8581147 8035326: Assume non-NULL references in G1CollectedHeap::in_cset_fast_test 
Remove the assumption that G1CollectedHeap::in_cset_fast_test needs to check for NULL references. Most of the time this is not required, making the code doing this check multiple times.

Reviewed-by: stefank, mgerdin, jmasa
 2014-02-24 09:40:49 +01:00
Thomas Schatzl
6c588725c1 8027559: Decrease code size and templatizing in G1ParCopyClosure::do_oop_work 
Move methods that are not dependent on any of G1ParCopyClosure's template parameters into G1ParCopyHelper. Further remove unused methods and members of the class hierarchy.

Reviewed-by: mgerdin, stefank
 2014-02-24 09:40:21 +01:00
Stefan Karlsson
4248787654 8035393: Use CLDClosure instead of CLDToOopClosure in frame::oops_interpreted_do 
Reviewed-by: tschatzl, coleenp
 2014-02-21 10:01:20 +01:00
Erik Helin
7b6d31b4a5 Merge 2014-02-21 10:00:46 +01:00
Vladimir Kozlov
4200d0d095 Merge 2014-02-20 12:20:56 -08:00
Vladimir Kozlov
5117e1a805 Merge 2014-02-19 12:08:49 -08:00
Staffan Larsen
43b711ea78 8034080: Remove the USDT1 dtrace code from Hotspot 
Reviewed-by: dholmes, coleenp
 2014-02-18 09:15:40 +01:00
Stefan Johansson
10d4420b08 8033440: jmap reports unexpected used/free size of concurrent mark-sweep generation 
SA used the wrong type for the indexedFreeList in CompactibleFreeListSpace.

Reviewed-by: coleenp, dsamersoff
 2014-02-17 09:51:37 +01:00
Erik Helin
83a8157179 Merge 2014-02-17 10:13:28 +01:00
Erik Helin
c5ef624e7c Merge 2014-02-13 17:57:27 +01:00
Ioi Lam
7f138c5502 7182040: volano29 limited by os resource on Linux - need better diagnostic message 
Changed message to "unable to create native thread: possibly out of memory or process/resource limits reached"

Reviewed-by: dholmes, sla
 2014-02-11 08:43:17 -08:00
Matthias Baesken
2b8f41202a 8034171: Remove use of template template parameters from binaryTreeDictionary 
Reviewed-by: mgerdin, jmasa
 2014-02-11 09:34:50 +01:00
Stefan Karlsson
2a5c51998d 8034764: Use process_strong_roots to adjust the StringTable 
Reviewed-by: tschatzl, brutisso
 2014-02-14 09:29:56 +01:00
Stefan Karlsson
2a866afcdb 8034761: Remove the do_code_roots parameter from process_strong_roots 
Reviewed-by: tschatzl, mgerdin, jmasa
 2014-02-13 17:44:39 +01:00
Erik Helin
4b802a6d31 Merge 2014-01-30 14:01:45 +01:00
Jesper Wilhelmsson
5301534dc3 8028391: Make the Min/MaxHeapFreeRatio flags manageable 
Made the flags Min- and MaxHeapFreeRatio manageable, and implemented support for these flags in ParallalGC.

Reviewed-by: sla, mgerdin, brutisso
 2014-01-29 23:17:05 +01:00
Vladimir Kozlov
c3a0e80e0b Merge 2014-01-28 12:25:34 -08:00
Harold Seigel
9aea544943 Merge 2014-01-19 20:23:46 -05:00
Staffan Larsen
b35fb5f8c0 8030812: Change the solaris DTrace implementation to use USDT2 instead of USDT1 
Reviewed-by: coleenp, sspitsyn, dsamersoff
 2014-01-16 20:14:21 +01:00
Stefan Johansson
a23ee6de8d 8031686: G1: assert(_hrs.max_length() == _expansion_regions) failed 
Using pointer_delta to avoid overflowing pointer calculation.

Reviewed-by: jmasa, tschatzl
 2014-01-20 10:55:54 +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
Mikael Gerdin
4c7c3f0613 8032379: Remove the is_scavenging flag to process_strong_roots 
Refactor the strong root processing to avoid using a boolean in addition to the ScanOption enum.

Reviewed-by: stefank, tschatzl, ehelin, jmasa
 2014-01-14 16:40:33 +01:00
Stefan Johansson
8ce7c46ec7 8020277: Young GC could be extremely slow due to assertion in ObjectStartArray::object_starts_in_range 
8009462: Young GC's (ParNewGC and SerialGC) have unexpected variances

Removed the assertion slowing down GC.

Reviewed-by: stefank, mgerdin
 2014-01-20 12:56:18 +01:00
Erik Helin
ba54cfdf88 8031776: Remove the unnecessary enum GenRemSet::Name 
Reviewed-by: stefank, tschatzl, jwilhelm
 2014-01-20 17:15:55 +01:00
Thomas Schatzl
70fd1802a0 8027746: Remove do_gen_barrier template parameter in G1ParCopyClosure 
Remove the above mentioned template parameter and related unused code. Also remove some classes that are never used.

Reviewed-by: stefank, mgerdin, jwilhelm
 2014-01-20 11:47:53 +01:00
Thomas Schatzl
aeba3a8119 8027454: Do not traverse string table during G1 remark when treating them as strong roots during initial mark 
Do not try to unlink string table entries unconditionally during remark. This is without side effects as the preceding initial mark always uses the string table as strong roots. Needs to be fixed with class unloading during concurrent mark.

Reviewed-by: brutisso, mgerdin
 2014-01-20 11:47:29 +01:00
Thomas Schatzl
4bb3631855 8027476: Improve performance of Stringtable unlink 
8027455: Improve symbol table scan times during gc pauses

Parallelize string table and symbol table scan during remark and full GC. Some additional statistics output if the experimental flag G1TraceStringSymbolTableScrubbing is set.

Reviewed-by: mgerdin, coleenp, brutisso
 2014-01-20 11:47:07 +01:00
Erik Helin
e962dec4b7 Merge 2014-01-14 14:26:43 +01:00
Morris Meyer
a665235538 Merge 2014-01-10 12:54:08 -08:00
Per Lidén
ca035a4040 8029162: G1: Shared SATB queue never enabled 
Reviewed-by: brutisso, mgerdin, tschatzl
 2014-01-10 09:54:25 +01:00
Jeremy Manson
66b65f9f88 8027364: PSScavenge accounts too large code section to StringTable unlink 
Correct timing measurement by modifying the scope of the GCTraceTime instance.

Reviewed-by: ysr, tamao
 2014-01-07 13:31:33 +01:00
Mikael Vidstedt
a0da47fd66 8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013 
Copyright year updated for files modified during 2013

Reviewed-by: twisti, iveresov
 2013-12-24 11:48:39 -08:00
Bengt Rutisson
810bc0c558 8029524: Remove unsused method CollectedHeap::unsafe_max_alloc() 
Reviewed-by: pliden, jmasa
 2013-12-16 08:54:14 +01:00
Vladimir Kozlov
3b4f167e54 Merge 2013-12-12 11:05:39 -08:00
Jesper Wilhelmsson
40ba2bba2c 8026849: Fix typos in the GC code, part 2 
Fixed typos in assert messages, flag descriptions and verbose messages

Reviewed-by: stefank, tschatzl
 2013-12-10 15:11:02 +01:00
Stefan Karlsson
5d460f1f3d 8033923: Use BufferingOopClosure for G1 code root scanning 
Reviewed-by: mgerdin, brutisso
 2014-02-10 12:58:09 +01:00