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7075646: G1: fix inconsistencies in the monitoring data

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Fixed a few inconsistencies in the monitoring data, in particular when reported from jstat.

Reviewed-by: jmasa, brutisso, johnc
This commit is contained in:
Antonios Printezis 2011-09-23 16:07:49 -04:00
parent 1b62d10b4b
commit 55c503aea2
10 changed files with 419 additions and 268 deletions
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23
hotspot/src/share/vm/gc_implementation/shared/generationCounters.hpp
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@ -34,6 +34,11 @@
class GenerationCounters: public CHeapObj {
friend class VMStructs;
private:
void initialize(const char* name, int ordinal, int spaces,
size_t min_capacity, size_t max_capacity,
size_t curr_capacity);
protected:
PerfVariable* _current_size;
VirtualSpace* _virtual_space;
@ -48,11 +53,18 @@ class GenerationCounters: public CHeapObj {
char* _name_space;
// This constructor is only meant for use with the PSGenerationCounters
// constructor. The need for such an constructor should be eliminated
// constructor. The need for such an constructor should be eliminated
// when VirtualSpace and PSVirtualSpace are unified.
GenerationCounters() : _name_space(NULL), _current_size(NULL), _virtual_space(NULL) {}
public:
GenerationCounters()
: _name_space(NULL), _current_size(NULL), _virtual_space(NULL) {}
// This constructor is used for subclasses that do not have a space
// associated with them (e.g, in G1).
GenerationCounters(const char* name, int ordinal, int spaces,
size_t min_capacity, size_t max_capacity,
size_t curr_capacity);
public:
GenerationCounters(const char* name, int ordinal, int spaces,
VirtualSpace* v);
@ -60,10 +72,7 @@ class GenerationCounters: public CHeapObj {
if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space);
}
virtual void update_all() {
_current_size->set_value(_virtual_space == NULL ? 0 :
_virtual_space->committed_size());
}
virtual void update_all();
const char* name_space() const { return _name_space; }