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#ifndef SHARE_UTILITIES_TABLE_STATISTICS_HPP
#define SHARE_UTILITIES_TABLE_STATISTICS_HPP
#include "memory/allocation.hpp"
#include "utilities/debug.hpp"
#include "utilities/globalDefinitions.hpp"
#include "utilities/numberSeq.hpp"
class TableRateStatistics : public CHeapObj<mtStatistics> {
friend class TableStatistics;
private :
volatile size_t _added_items;
volatile size_t _removed_items;
jlong _time_stamp;
double _seconds_stamp;
size_t _added_items_stamp;
size_t _added_items_stamp_prev;
size_t _removed_items_stamp;
size_t _removed_items_stamp_prev;
public :
TableRateStatistics();
~TableRateStatistics();
void add();
void remove();
protected :
void stamp();
float get_add_rate();
float get_remove_rate();
};
class TableStatistics : CHeapObj<mtStatistics> {
public :
size_t _literal_bytes;
size_t _number_of_buckets;
size_t _number_of_entries;
size_t _maximum_bucket_size;
float _average_bucket_size;
float _variance_of_bucket_size;
float _stddev_of_bucket_size;
size_t _bucket_bytes;
size_t _entry_bytes;
size_t _total_footprint;
size_t _bucket_size;
size_t _entry_size;
float _add_rate;
float _remove_rate;
TableStatistics();
TableStatistics(NumberSeq summary, size_t literal_bytes, size_t bucket_bytes, size_t node_bytes);
TableStatistics(TableRateStatistics& rate_stats, NumberSeq summary, size_t literal_bytes, size_t bucket_bytes, size_t node_bytes);
~TableStatistics();
void print(outputStream* st, const char *table_name);
};
#endif // SHARE_UTILITIES_TABLE_STATISTICS_HPP
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