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21 Commits

Author SHA1 Message Date
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
Antonios Printezis
1215bc6717 6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set 
Changing the behavior of -XX:+PrintHeapAtGC for G1 from printing lengthy, per-region information to instead printing a concise summary.

Reviewed-by: ysr, apetrusenko, jcoomes
 2009-07-07 14:23:00 -04:00
Antonios Printezis
f741e2fceb 6850846: G1: extend G1 marking verification 
Extend G1 marking verification to use either the "prev" or "next" marking information, as appropriate.

Reviewed-by: johnc, ysr
 2009-06-12 16:20:16 -04:00
John Cuthbertson
70fe3ca4f5 6843694: G1: assert(index < _vs.committed_size(),"bad index"), g1BlockOffsetTable.inline.hpp:55 
For heaps larger than 32Gb, the number of heap regions overflows the data type used to hold the region index in the SparsePRT structure. Changed the region indexes, card indexes, and RSet hash table buckets to ints and added some size overflow guarantees.

Reviewed-by: ysr, tonyp
 2009-06-11 17:19:33 -07:00
Andrey Petrusenko
b7eda61fb6 6819065: G1: eliminate high serial card table clearing time 
Reviewed-by: iveresov, tonyp
 2009-05-19 04:05:31 -07:00
Igor Veresov
74e0691df5 6822263: G1: JVMTI heap iteration fails 
Make object_iterate() traverse the perm gen

Reviewed-by: apetrusenko, tonyp
 2009-03-26 08:51:32 -07:00
Andrey Petrusenko
cf2ae8d98d 6543938: G1: remove the concept of popularity 
Reviewed-by: iveresov, tonyp
 2009-03-25 13:10:54 -07:00
Antonios Printezis
f8c3115e4e Merge 2009-03-18 11:37:48 -04:00
Antonios Printezis
ecdb99412d 6604422: G1: re-use half-promoted regions 
6728271: G1: Cleanup G1CollectedHeap::get_gc_alloc_regions()

It allows the last half-full region to be allocated to during a GC to be reused during the next GC.

Reviewed-by: apetrusenko, jcoomes
 2009-03-15 22:03:38 -04:00
Erik Trimble
8d6035660e Merge 2009-03-12 18:16:36 -07:00
Xiomara Jayasena
2be2e027b0 6814575: Update copyright year 
Update copyright for files that have been modified in 2009, up to 03/09

Reviewed-by: katleman, tbell, ohair
 2009-03-09 13:28:46 -07:00
Igor Veresov
416d70bf91 6720309: G1: don't synchronously update RSet during evacuation pauses 
6720334: G1: don't update RSets of collection set regions during an evacuation pause

Introduced a deferred update mechanism for delaying the rset updates during the collection pause

Reviewed-by: apetrusenko, tonyp
 2009-03-06 13:50:14 -08:00
Andrey Petrusenko
61181babf1 6484959: G1: introduce survivor spaces 
6797754: G1: combined bugfix

Implemented a policy to control G1 survivor space parameters.

Reviewed-by: tonyp, iveresov
 2009-02-06 01:38:50 +03:00
Antonios Printezis
5d486c3a66 6484956: G1: improve evacuation pause efficiency 
A bunch of performance optimizations to decrease GC pause times in G1.

Reviewed-by: apetrusenko, jmasa, iveresov
 2009-01-16 13:02:20 -05:00
John Coomes
2ba0d5b055 Merge 2009-01-14 14:12:55 -08:00
Jon Masamitsu
3474623106 6689653: JMapPerm fails with UseConcMarkSweepIncGC and compressed oops off 
Added safe_object_iterate() for use by JMapPerm.

Reviewed-by: tonyp
 2009-01-06 07:05:05 -08:00
Xiomara Jayasena
99f0eac1a2 6785258: Update copyright year 
Update copyright for files that have been modified starting July 2008 to Dec 2008

Reviewed-by: katleman, ohair, tbell
 2008-12-15 16:55:11 -08:00
Antonios Printezis
6f5e28aca1 6752248: G1: introduce parallel heap verification 
Introduce parallel heap verification in G1.

Reviewed-by: jcoomes, apetrusenko
 2008-10-06 13:16:35 -04:00
Antonios Printezis
e2b3310cb6 6722565: G1: assert !r->is_on_unclean_list() fires 
Under certain circumstances, two cleanup threads can claim and process the same region.

Reviewed-by: apetrusenko, ysr
 2008-08-06 11:57:31 -04:00
Igor Veresov
2703662478 6723570: G1: assertion failure: p == current_top or oop(p)->is_oop(),"p is not a block start" (revisited!) 
Fixed the incorrect assigment to G1OffsetTableContigSpace::_gc_time_stamp. Also added a little more paranoia to operations on a global timestamp.

Reviewed-by: tonyp
 2008-07-10 09:29:54 -07:00
Y. Srinivas Ramakrishna
18f3386a98 6711316: Open source the Garbage-First garbage collector 
First mercurial integration of the code for the Garbage-First garbage collector.

Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
 2008-06-05 15:57:56 -07:00