[fio.git] / idletime.h

#ifndef FIO_IDLETIME_H
#define FIO_IDLETIME_H

#include "fio.h"

#define CALIBRATE_RUNS  10
#define CALIBRATE_SCALE 1000
#define MAX_CPU_STR_LEN 32

enum {
	IDLE_PROF_OPT_NONE,
	IDLE_PROF_OPT_CALI,                /* calibration only */
	IDLE_PROF_OPT_SYSTEM,
	IDLE_PROF_OPT_PERCPU
};

enum {
	 IDLE_PROF_STATUS_OK,
	 IDLE_PROF_STATUS_CALI_STOP,
	 IDLE_PROF_STATUS_PROF_STOP,
	 IDLE_PROF_STATUS_ABORT
};

struct idle_prof_thread {
	pthread_t thread;
	int cpu;
	int state;
	struct timeval tps;
	struct timeval tpe;
	double cali_time; /* microseconds to finish a unit work */
	double loops;
	double idleness;
	unsigned char *data;             /* bytes to be touched */
	pthread_cond_t  cond;
	pthread_mutex_t init_lock;
	pthread_mutex_t start_lock;

	os_cpu_mask_t cpu_mask;
};

struct idle_prof_common {
	struct idle_prof_thread *ipts;
	int nr_cpus;
	int status;
	int opt;
	double cali_mean;
	double cali_stddev;
	void *buf;    /* single data allocation for all threads */
};

extern int fio_idle_prof_parse_opt(const char *);

extern void fio_idle_prof_init(void);
extern void fio_idle_prof_start(void);
extern void fio_idle_prof_stop(void);

extern void show_idle_prof_stats(int, struct json_object *);

#endif
Commit	Line	Data
	1	#ifndef FIO_IDLETIME_H
	2	#define FIO_IDLETIME_H
	3
	4	#include "fio.h"
	5
	6	#define CALIBRATE_RUNS 10
	7	#define CALIBRATE_SCALE 1000
	8	#define MAX_CPU_STR_LEN 32
	9
	10	enum {
	11	IDLE_PROF_OPT_NONE,
	12	IDLE_PROF_OPT_CALI, /* calibration only */
	13	IDLE_PROF_OPT_SYSTEM,
	14	IDLE_PROF_OPT_PERCPU
	15	};
	16
	17	enum {
	18	IDLE_PROF_STATUS_OK,
	19	IDLE_PROF_STATUS_CALI_STOP,
	20	IDLE_PROF_STATUS_PROF_STOP,
	21	IDLE_PROF_STATUS_ABORT
	22	};
	23
	24	struct idle_prof_thread {
	25	pthread_t thread;
	26	int cpu;
	27	int state;
	28	struct timeval tps;
	29	struct timeval tpe;
	30	double cali_time; /* microseconds to finish a unit work */
	31	double loops;
	32	double idleness;
	33	unsigned char data; / bytes to be touched */
	34	pthread_cond_t cond;
	35	pthread_mutex_t init_lock;
	36	pthread_mutex_t start_lock;
	37
	38	os_cpu_mask_t cpu_mask;
	39	};
	40
	41	struct idle_prof_common {
	42	struct idle_prof_thread *ipts;
	43	int nr_cpus;
	44	int status;
	45	int opt;
	46	double cali_mean;
	47	double cali_stddev;
	48	void buf; / single data allocation for all threads */
	49	};
	50
	51	extern int fio_idle_prof_parse_opt(const char *);
	52
	53	extern void fio_idle_prof_init(void);
	54	extern void fio_idle_prof_start(void);
	55	extern void fio_idle_prof_stop(void);
	56
	57	extern void show_idle_prof_stats(int, struct json_object *);
	58
	59	#endif