johnc [Tue, 24 Nov 2009 15:19:30 -0800] rev 4460
6899058: G1: Internal error in ptrQueue.cpp:201 in nightly tests
Summary: Fixes a race on the dirty card queue completed buffer list between worker thread(s) performing a flush of a deferred store barrier (enqueueing a newly completed buffer) and worker thread(s) in the RSet updating code claiming completed buffers. Removed the routine that removes elements from the completed update buffer queue using a CAS.
Reviewed-by: ysr, tonyp
tonyp [Fri, 20 Nov 2009 14:47:01 -0500] rev 4459
6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC
Summary: It introduces the necessary memory pools for G1.
Reviewed-by: mchung, ysr
ysr [Thu, 19 Nov 2009 13:43:25 -0800] rev 4458
6902303: G1: ScavengeALot should cause an incremental, rather than a full, collection
Summary: ScavengeALot now causes an incremental (but possibly partially young, in the G1 sense) collection. Some such collections may be abandoned on account of MMU specs. Band-aided a native leak associated with abandoned pauses, as well as an MMU tracker overflow related to frequent scavenge events in the face of a large MMU denominator interval; the latter is protected by a product flag that defaults to false.
Reviewed-by: tonyp
ysr [Thu, 19 Nov 2009 10:19:19 -0800] rev 4457
6902701: G1: protect debugging code related to 6898948 with a debug flag
Summary: Protected stats dump with a new develop flag; other than for the dump, reconciled product and non-product behaviour in face of the error.
Reviewed-by: tonyp
ysr [Fri, 13 Nov 2009 11:55:26 -0800] rev 4456
6898948: G1: forensic instrumentation for out-of-bounds recent_avg_pause_time_ratio()
Summary: Added instrumentation and (temporary) assert in non-product mode; clipped the value when found out-of-bounds in product mode. Fix of original issue will follow collection of data from this instrumentation.
Reviewed-by: jcoomes, tonyp
jmasa [Tue, 10 Nov 2009 11:32:48 -0800] rev 4455
6898857: [Regression] -XX:NewRatio with -XX:+UseConcMarkSweepGC causes fatal error
Summary: Use CollectorPolicy information instead of MaxNewSize
Reviewed-by: ysr, jcoomes
johnc [Fri, 06 Nov 2009 11:10:05 -0800] rev 4454
6895788: G1: SATB and update buffer allocation code allocates too much space
Summary: The type in the NEW_C_HEAP_ARRRY and FREE_C_HEAP_ARRAY calls in the buffer allocation code was changed from void* to char as the size argument had already been mulitipled by the byte size of an object pointer.
Reviewed-by: ysr, tonyp