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956 Commits

Author SHA1 Message Date
Antonios Printezis
6a97a03610 Merge 2009-08-24 13:52:42 -07:00
Jon Masamitsu
20a43bad21 6798898: CMS: bugs related to class unloading 
Override should_remember_klasses() and remember_klass() as needed.

Reviewed-by: ysr, jcoomes
 2009-08-24 10:36:31 -07:00
Antonios Printezis
4d138cd094 6871111: G1: remove the concurrent overhead tracker 
Removing the concurrent overhead tracker from G1, along with the GC overhead reporter and the G1AccountConcurrentOverhead (both of which rely on the the concurrent overhead tracker).

Reviewed-by: iveresov, johnc
 2009-08-19 12:53:25 -04:00
Antonios Printezis
1d0a8b2945 6866591: G1: print update buffer processing stats more often 
It adds parameter -XX:+G1SummarizeRSetStatsPeriod that causes update buffer processing information to be printed periodically. It also includes two small formatting changes.

Reviewed-by: jmasa, jcoomes, ysr
 2009-07-30 14:50:58 -04:00
Erik Trimble
e846382e12 Merge 2009-07-29 16:00:35 -07:00
Antonios Printezis
5f7ed79e3c 6864886: G1: rename -XX parameters related to update buffers 
Renaming a couple of update buffer-related parameters to make them more understandable and consistent.

Reviewed-by: iveresov, ysr
 2009-07-29 11:01:26 -04:00
Xiomara Jayasena
a63ef10004 6862919: Update copyright year 
Update copyright for files that have been modified in 2009, up to 07/09

Reviewed-by: tbell, ohair
 2009-07-28 12:12:40 -07:00
Y. Srinivas Ramakrishna
759881b511 6863216: Clean up debugging debris inadvertently pushed with 6700789 
Anti-delta for debugging debris that was inadvertently pushed.

Reviewed-by: kvn, tonyp
 2009-07-22 18:25:00 -07:00
Andrey Petrusenko
0e783b7554 6862661: G1: _gc_alloc_region_counts is not updated properly after 6604422 
Implementation of RFE 6604422 (G1: re-use half-promoted regions) introduced incorrect _gc_alloc_region_counts updates which effectively disabled survivor spaces.

Reviewed-by: johnc, jmasa, tonyp
 2009-07-22 02:46:55 -07:00
Antonios Printezis
26c66d0015 6859911: G1: assert(Heap_lock->owner() = NULL, "Should be owned on this thread's behalf") 
The used() method assumes that the heap lock is held when it is called. However, when used() is called from print_on(), this is not the case.

Reviewed-by: ysr, jmasa
 2009-07-15 12:22:59 -04:00
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
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
eec17fe775 6855115: G1: Fix for 6850869 is incorrect 
Missed updating two variable names when improving the code for 6850869.

Reviewed-by: iveresov, jmasa, ysr
 2009-06-29 12:17:03 -04:00
Antonios Printezis
3a643c42b0 6850869: G1: RSet "scrubbing" scrubs too much 
RSet scrubbing incorrectly deletes RSet entries that point to regions tagged as "continues humongous" due to a race when RSet scrubbing iterates over regions in parallel.

Reviewed-by: apetrusenko, iveresov
 2009-06-24 11:42:03 -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 Coomes
10002fa2ff 6814552: par compact - some compilers fail to optimize bitmap code 
Reviewed-by: tonyp, iveresov, jmasa, ysr
 2009-06-07 22:08:24 -07:00
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
Igor Veresov
307bb62ca5 6849122: G1: Typo introduced during implementation of the parallel refinement 
Typo fix

Reviewed-by: jcoomes
 2009-06-08 16:14:19 -07:00
Y. Srinivas Ramakrishna
9611174798 6848641: CMSCollector::_roots_scanning_options should be initialized 
The field is now initialized in the constructor.

Reviewed-by: iveresov, jmasa, johnc
 2009-06-07 00:27:41 -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
4f6c7e4a14 6841831: G1: assert(contains_reference(from),"We just added it!") fires 
During parallel rset updating we have to make sure that the worker ids of the refinement threads do not intersect with the worker ids that can be claimed by the mutator threads.

Reviewed-by: tonyp
 2009-05-18 11:52:46 -07:00
Igor Veresov
8c764e214c 6484957: G1: parallel concurrent refinement 
6826318: G1: remove traversal-based refinement code

Removed traversal-based refinement code as it's no longer used. Made the concurrent refinement (queue-based) parallel.

Reviewed-by: tonyp
 2009-05-11 16:30:56 -07:00
John Cuthbertson
92afe130d1 6833576: G1: assert illegal index, growableArray.hpp:186 
The code that calculates the heap region index for an object address incorrectly used signed arithmetic.

Reviewed-by: jcoomes, ysr
 2009-05-05 22:15:35 -07:00
John Cuthbertson
55750920b4 6490395: G1: Tidy up command line flags 
Change G1 flag names to be more consistent and disable some in 'product' mode.

Reviewed-by: tonyp, iveresov
 2009-04-30 15:07:53 -07:00
Igor Veresov
db68fa7326 6819098: G1: reduce RSet scanning times 
Added a feedback-driven exponential skipping for parallel RSet scanning.

Reviewed-by: tonyp, apetrusenko
 2009-04-27 16:52:18 -07:00
Antonios Printezis
c2578847e2 6829013: G1: set the default value of G1VerifyConcMarkPrintRechable to false 
Turn off G1VerifyConcMarkPrintReachable by default to minimize the amount of verbose output we generate by default.

Reviewed-by: jmasa
 2009-04-23 16:58:16 -04:00
Y. Srinivas Ramakrishna
e1b2c1c442 Merge 2009-04-03 15:59:19 -07:00
Andrey Petrusenko
a8f9284064 Merge 2009-04-02 05:22:02 -07:00
Vladimir Kozlov
aee9449305 Merge 2009-03-31 10:02:01 -07:00
Y. Srinivas Ramakrishna
137a679446 6819891: ParNew: Fix work queue overflow code to deal correctly with +UseCompressedOops 
When using compressed oops, rather than chaining the overflowed grey objects' pre-images through their klass words, we use GC-worker thread-local overflow stacks.

Reviewed-by: jcoomes, jmasa
 2009-03-28 15:47:29 -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
cb822b7e10 Merge 2009-03-25 10:36:08 -04:00
Antonios Printezis
d5e5e5a3d1 6820321: G1: Error: guarantee(check_nums(total, n, parts), "all seq lengths should match") 
Small fixes to sort out some verbosegc-related incorrectness and a failure

Reviewed-by: apetrusenko
 2009-03-21 22:53:04 -04:00
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
41463d1d3a Merge 2009-03-19 09:13:24 -07:00
Antonios Printezis
f8c3115e4e Merge 2009-03-18 11:37:48 -04:00
Igor Veresov
736e8a2d4b 6815683: G1: SEGV during marking 
We should mark the regions that continue humongous regions as live if the first region is live.

Reviewed-by: tonyp
 2009-03-16 17:48:01 -07:00
Vladimir Kozlov
f210928e73 6816308: Changes to allow builds with latest Windows SDK 6.1 on 64bit Windows 2003 
Allow Hotspot builds with latest Windows SDK 6.1 on 64bit Windows 2003

Reviewed-by: ohair, tbell, jcoomes
 2009-03-16 15:06:33 -07:00
Antonios Printezis
217739210d 6816154: G1: introduce flags to enable/disable RSet updating and scanning 
Introduces two flags, -XX:-/+G1EnableParallelRSetUpdating and -XX:-/+G1EnableParallelRSetScanning, to turn on/off the "band aid" fix that serializes RSet updating / scanning during GCs.

Reviewed-by: iveresov
 2009-03-16 10:52:44 -04:00
Igor Veresov
82619cc8da 6817419: G1: Enable extensive verification for humongous regions 
Enabled full verification for humongous regions. Also made sure that the VerifyAfterGC works with deferred updates and G1HRRSFlushLogBuffersOnVerify.

Reviewed-by: tonyp
 2009-03-16 08:01:32 -07:00
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
Y. Srinivas Ramakrishna
a45005f646 6808322: ParNew, CMS, G1: ParGCAllocBuffer overflow 
Correct the overflow check in ParGCAllocBuffer::allocate(); simplify ParGCAllocBuffer::undo_allocation().

Reviewed-by: apetrusenko, jcoomes, jmasa, minqi, phh, tonyp
 2009-03-13 13:56:01 -07:00
Erik Trimble
8d6035660e Merge 2009-03-12 18:16:36 -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
Andrey Petrusenko
13c13c7289 6760309: G1: update remembered sets during Full GCs 
Reviewed-by: iveresov, tonyp
 2009-03-10 00:47:05 -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
Antonios Printezis
faf22e51ad Merge 2009-03-09 11:32:57 -04:00
Antonios Printezis
e4e765e34e 6814467: G1: small fixes related to concurrent marking verboseness 
A few small fixes to remove some inconsistencies in the concurrent mark-related verbose GC output.

Reviewed-by: jmasa
 2009-03-07 11:07:37 -05:00
Antonios Printezis
8893530f3a 6812428: G1: Error: assert(ret || obj_in_cs(obj),"sanity") 
The length of the fast cset test vector is decided at the beginning of a GC, but more regions can be added during the GC. The simple fix is to set the length of the fast cset test vector to the max.

Reviewed-by: iveresov
 2009-03-07 11:07:37 -05:00