Performance Counters

Overview

Note developers can plug into rDSN their own performance counter implementation, so as to integrate rDSN performance counters into their own cluster operation systems.

Classes
class	dsn::perf_counter_

Typedefs
typedef enum dsn_perf_counter_type_t	dsn_perf_counter_type_t
typedef enum dsn_perf_counter_percentile_type_t	dsn_perf_counter_percentile_type_t

Enumerations
enum	dsn_perf_counter_type_t {   COUNTER_TYPE_NUMBER, COUNTER_TYPE_RATE, COUNTER_TYPE_NUMBER_PERCENTILES, COUNTER_TYPE_INVALID,   COUNTER_TYPE_COUNT }
enum	dsn_perf_counter_percentile_type_t {   COUNTER_PERCENTILE_50, COUNTER_PERCENTILE_90, COUNTER_PERCENTILE_95, COUNTER_PERCENTILE_99,   COUNTER_PERCENTILE_999, COUNTER_PERCENTILE_COUNT, COUNTER_PERCENTILE_INVALID }

Functions
DSN_API dsn_handle_t	dsn_perf_counter_create (const char *section, const char *name, dsn_perf_counter_type_t type, const char *description)
DSN_API void	dsn_perf_counter_remove (dsn_handle_t handle)
DSN_API void	dsn_perf_counter_increment (dsn_handle_t handle)
DSN_API void	dsn_perf_counter_decrement (dsn_handle_t handle)
DSN_API void	dsn_perf_counter_add (dsn_handle_t handle, uint64_t val)
DSN_API void	dsn_perf_counter_set (dsn_handle_t handle, uint64_t val)
DSN_API double	dsn_perf_counter_get_value (dsn_handle_t handle)
DSN_API uint64_t	dsn_perf_counter_get_integer_value (dsn_handle_t handle)
DSN_API double	dsn_perf_counter_get_percentile (dsn_handle_t handle, dsn_perf_counter_percentile_type_t type)