8 Commits

Author SHA1 Message Date
Zhengyu Gu
cfaea9fe7d 8012464: NMT: classes should not derive from _ValueObj, use VALUE_OBJ_CLASS_SPEC instead
NMT value objects should use VALUE_OBJ_CLASS_SPEC instead of deriving from _ValueObj

Reviewed-by: coleenp, hseigel, dholmes
2013-04-18 10:04:44 -04:00
Zhengyu Gu
5c6318e816 8005048: NMT: #loaded classes needs to just show the # defined classes
Count number of instance classes so that it matches class metadata size

Reviewed-by: coleenp, acorn
2013-01-08 14:04:25 -05:00
Zhengyu Gu
2cb72bf989 8003487: NMT: incorrect assertion in VMMemPointerIterator::remove_released_region method (memSnapshot.cpp)
The assertion is applied to only the region to be released, also performs region integrity checking

Reviewed-by: acorn, coleenp
2012-11-16 09:05:19 -05:00
Zhengyu Gu
f47de1cb41 8001592: NMT: assertion failed: assert(_amount >= amt) failed: Just check: memBaseline.hpp:180
Fixed NMT that miscounted arena memory when it is used as value or stack object.

Reviewed-by: acorn, coleenp
2012-11-09 19:24:31 -05:00
Zhengyu Gu
3e481cdd81 7199092: NMT: NMT needs to deal overlapped virtual memory ranges
Enhanced virtual memory tracking to track committed regions as well as reserved regions, so NMT now can generate virtual memory map.

Reviewed-by: acorn, coleenp
2012-10-19 21:40:07 -04:00
Zhengyu Gu
442e4b0e54 7181995: NMT ON: NMT assertion failure assert(cur_vm->is_uncommit_record() || cur_vm->is_deallocation_record
Fixed virtual memory records merge and promotion logic, should be based on sequence number vs. base address order

Reviewed-by: coleenp, acorn
2012-09-11 20:53:17 -04:00
Zhengyu Gu
a13f3bdad8 7185614: NMT ON: "check by caller" assertion failed on nsk ThreadMXBean test
7187429: NMT ON: Merge failure should cause NMT to shutdown

Fixed NMT assertion failures

Reviewed-by: acorn, kvn
2012-08-01 17:19:30 -04:00
Zhengyu Gu
a39b17624a 6995781: Native Memory Tracking (Phase 1)
7151532: DCmd for hotspot native memory tracking

Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd

Reviewed-by: acorn, coleenp, fparain
2012-06-28 17:03:16 -04:00