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719 Commits

Author SHA1 Message Date
Thomas Schatzl
52a4823950 8068018: Clean up friends of G1CollectedHeap 
Remove unnecessary friend class declaration in the G1CollectedHeap class.

Reviewed-by: jwilhelm, jmasa
 2014-12-23 15:48:32 +01:00
Kim Barrett
57198d2b63 8067499: G1SATBCardTableModRefBS should not inherit from CardTableModRefBSForCTRS 
G1SATBCardTableModRefBS inherits from CardTableModRefBS

Reviewed-by: mgerdin, brutisso, tschatzl
 2014-12-18 13:26:37 -05:00
Jesper Wilhelmsson
12797a11c0 Merge 2014-12-22 17:40:46 +00:00
Thomas Schatzl
d530b1da99 8068036: assert(is_available(index)) failed in G1 cset 
Some verification code iterated over the heap using the region mapping array. This is not allowed. Changed to use the regular iteration method with closure.

Reviewed-by: jwilhelm, brutisso
 2014-12-22 16:49:24 +01:00
Thomas Schatzl
1be86b3412 8060025: Object copy time regressions after JDK-8031323 and JDK-8057536 
Evaluate and improve object copy time by micro-optimizations and splitting out slow and fast paths aggressively.

Co-authored-by: Tony Printezis <tprintezis@twitter.com>
Reviewed-by: kbarrett, mgerdin, jmasa
 2014-12-19 09:21:06 +01:00
Jesper Wilhelmsson
dfc952b138 Merge 2014-12-18 16:15:49 +01:00
Kim Barrett
093d2698fc 8066827: Remove ReferenceProcessor::clean_up_discovered_references() 
Abandon rather than clean up discovered references.

Reviewed-by: jmasa, ysr
 2014-12-17 22:32:44 -05:00
Thomas Schatzl
c079059456 Merge 2014-12-18 11:23:18 +00:00
Thomas Schatzl
f2e110fe77 8067469: G1 ignores AlwaysPreTouch 
Factor out pretouch code of the various virtual space management classes and use them everywhere including in G1.

Reviewed-by: stefank, ehelin, dholmes
 2014-12-18 09:37:02 +01:00
Yumin Qi
e4961abb71 Merge 2014-12-12 20:49:14 -08:00
Max Ockner
1d76295d70 8047290: Make Mutex::_no_safepoint_check_flag locks verify that this lock never checks for safepoint 
Ensure consistent safepoint checking in Mutex/Monitor locking methods.

Reviewed-by: dholmes, dcubed, coleenp
 2014-12-11 21:34:43 -05:00
Thomas Schatzl
5d868d4e0f 8066102: Clean up HeapRegionRemSet files 
Remove dead code, tighten public interfaces and improve documentation in the HeapRegionRemSet implementation.

Reviewed-by: mgerdin, kbarrett
 2014-12-09 12:47:19 +01:00
Mikael Gerdin
cc786b287d 8067655: Clean up G1 remembered set oop iteration 
Pass on the static type G1ParPushHeapRSClosure to allow oop_iterate devirtualization

Reviewed-by: jmasa, kbarrett
 2014-12-08 18:57:33 +01:00
Jesper Wilhelmsson
9b430f2262 Merge 2014-12-04 10:40:19 +01:00
Yumin Qi
9767fa7cb2 Merge 2014-12-03 20:32:33 -08:00
Max Ockner
91dbd4f088 8060074: os::free() takes MemoryTrackingLevel but doesn't need it 
Cleaned up unused arguments in os::free and it's callers.

Reviewed-by: lfoltan, coleenp, ctornqvi, dholmes
 2014-12-01 12:16:15 -05:00
Leonid Mesnik
c8a147b8c7 8065579: WB method to start G1 concurrent mark cycle should be introduced 
Add a WhiteBox callback to the VM to start a concurrent mark cycle in G1.

Reviewed-by: tschatzl, sjohanss
 2014-11-28 09:33:48 +01:00
Stefan Johansson
02adde2aac 8065227: Report allocation context stats at end of cleanup 
Moved allocation context update from remark to the cleanup phase.

Reviewed-by: mgerdin, jmasa
 2014-11-27 11:09:55 +01:00
Jesper Wilhelmsson
11267d8d06 Merge 2014-11-26 17:24:57 +00:00
Mikael Gerdin
b5ef32af36 8065358: Refactor G1s usage of save_marks and reduce related races 
Stop using save_marks in G1 related code and make setting the replacement field less racy.

Reviewed-by: brutisso, tschatzl
 2014-11-26 10:53:31 +01:00
Jesper Wilhelmsson
1da0a96993 8065305: Make it possible to extend the G1CollectorPolicy 
Added a G1CollectorPolicyExt where it is possible to extend the class.

Reviewed-by: sjohanss, tschatzl
 2014-11-25 13:41:08 +01:00
Kim Barrett
f9d8e2ae9d 8062206: Remove unusable G1RSLogCheckCardTable command line argument 
Remove dependent assertion and remove develop option

Reviewed-by: jwilhelm, mgerdin, tschatzl
 2014-10-27 17:24:10 -04:00
Jesper Wilhelmsson
7339456266 8062836: BACKOUT - Parallelize clearing the next mark bitmap 
Backing out due to non-trivial issues found in nightly testing

Reviewed-by: mgerdin, mlarsson
 2014-11-05 15:50:14 +01:00
Bengt Rutisson
c1bc4be92b 8061449: G1: FreeRegionList_test() fails with G1 after the JDK-8058534 fix to HeapRegion::orig_end() 
Reviewed-by: mgerdin, tschatzl, stefank
 2014-11-05 10:12:51 +01:00
Marcus Larsson
4a9f067587 8049341: Parallelize clearing the next mark bitmap 
Reviewed-by: mgerdin, tschatzl
 2014-11-03 12:49:21 +01:00
Marcus Larsson
fe45f7091b 8054491: Remove wrong assert and refactor code in G1CollectorPolicy::record_concurrent_mark_end 
Reviewed-by: tschatzl, brutisso
 2014-11-03 11:29:00 +01:00
Marcus Larsson
5fd7516136 8043243: convert SCAN_AND_FORWARD, SCAN_AND_ADJUST_POINTERS, SCAN_AND_COMPACT macros to methods 
Reviewed-by: mgerdin, kbarrett
 2014-10-30 12:45:22 +01:00
Stefan Johansson
6306dce831 8061234: ResourceContext.requestAccurateUpdate() is unreliable 
Changing copy_allocation_context_stats to return if there are more stats available after the copy.

Reviewed-by: rriggs, jcoomes
 2014-10-30 10:51:06 +01:00
Kim Barrett
8f8d87ece5 8061748: Remove check_ct_logs_at_safepoint() 
Remove unused function and related closure class

Reviewed-by: jwilhelm, mgerdin
 2014-10-23 16:19:32 -04:00
Erik Helin
3a3e45ab40 8061630: G1 iterates over JNIHandles two times 
Reviewed-by: mgerdin, brutisso
 2014-10-23 11:43:29 +02:00
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
Staffan Friberg
04bdb774e1 8064473: Improved handling of age during object copy in G1 
Reviewed-by: brutisso, tschatzl
 2014-11-14 15:03:39 +01:00
Mikael Gerdin
4feb7b4dab 8058209: Race in G1 card scanning could allow scanning of memory covered by PLABs 
Read _top before _gc_time_stamp in saved_mark_word() with LoadLoad order to ensure we get a consistent view

Reviewed-by: brutisso, dcubed, dholmes, stefank
 2014-11-14 14:23:25 +01:00
Kim Barrett
294a63af5f 8062036: ConcurrentMarkThread::slt may be invoked before ConcurrentMarkThread::makeSurrogateLockerThread causing intermittent crashes 
Suppress gc_alot during VM init, improve error for SLT uninitialized.

Reviewed-by: jmasa, brutisso, tschatzl
 2014-11-11 13:39:00 -05:00
Marcus Larsson
46e9fb5176 6979279: remove special-case code for ParallelGCThreads==0 
Reviewed-by: jwilhelm, brutisso, kbarrett
 2014-10-21 11:57:22 +02:00
Stefan Johansson
bd227a9bac 8058568: GC cleanup phase can cause G1 skipping a System.gc() 
Marking G1 FullGC as a _full collection and passing down the correct before count.

Reviewed-by: brutisso, mgerdin
 2014-10-20 10:18:17 +02:00
Stefan Karlsson
d410f19961 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse 
Reviewed-by: mgerdin, coleenp, bdelsart
 2014-10-02 10:55:36 +02:00
Sangheon Kim
8d288ccc54 8027428: Different conditions for printing taskqueue statistics for parallel gc, parNew and G1 
Changed flag names for printing taskqueue and termination statistics for parallel gc, parNew and G1.

Reviewed-by: jwilhelm, brutisso, tschatzl
 2014-10-14 20:58:43 +02:00
Sangheon Kim
3f18eda414 8058801: G1TraceReclaimDeadHumongousObjectsAtYoungGC only prints humongous object liveness output when there is at least one candidate humongous object 
If G1TraceReclaimDeadHumongousObjectsAtYoungGC is enabled, always print humongous object liveness output.

Reviewed-by: tschatzl
 2014-10-10 12:15:51 +02:00
Thomas Schatzl
60f3ade82b 8059758: Footprint regressions with JDK-8038423 
Changes in JDK-8038423 always initialize (zero out) virtual memory used for auxiliary data structures. This causes a footprint regression for G1 in startup benchmarks. This is because they do not touch that memory at all, so the operating system does not actually commit these pages. The fix is to, if the initialization value of the data structures matches the default value of just committed memory (=0), do not do anything.

Reviewed-by: jwilhelm, brutisso
 2014-10-09 11:40:11 +02:00
Marcus Larsson
6d1c35615a 8058298: Separate heap region iterator claim values from the data structures iterated over 
Reviewed-by: tschatzl, brutisso
 2014-10-07 14:54:53 +02:00
Stefan Johansson
18eb46eb95 8059466: Force young GC to initiate marking cycle when stat update is requested 
Enable yc to be forced for stat update.

Reviewed-by: mgerdin, jcoomes
 2014-10-06 10:11:13 +02:00
Bengt Rutisson
82931dcc1c 8059452: G1: Change the default values for G1HeapWastePercent and G1MixedGCLiveThresholdPercent 
Reviewed-by: tschatzl, jwilhelm
 2014-09-30 13:14:22 +02:00
Jesper Wilhelmsson
261735f6fa 8047976: Ergonomics for GC thread counts should update the flags 
Ergonomics updates flags for number of GC threads

Reviewed-by: tschatzl, jwilhelm
 2014-09-27 15:11:41 +02:00
Jesper Wilhelmsson
f9b921bd25 Merge 2014-09-22 16:22:21 +02:00
Sangheon Kim
30cb2dcb12 8036116: Fix thread-id types in G1 remembered set implementations 
Reviewed-by: stefank, jprovino, brutisso
 2014-09-24 11:00:12 +02:00
Stefan Karlsson
1a452ae3ae Merge 2014-09-23 12:52:57 +00:00
Joseph Provino
b0b5fa7bc6 8027450: Improve time reporting in G1 remark 
Reviewed-by: stefank, tschatzl
 2014-09-23 12:34:37 +02:00
Antonios Printezis
da5afa76ab 8058495: G1: normalize names for isHumongous() and friends 
Reviewed-by: tschatzl, brutisso
 2014-09-23 11:43:24 +02:00
Niclas Adlertz
37c8ef911c Merge 2014-09-19 17:14:13 +02:00