[fio.git] / stat.h

#ifndef FIO_STAT_H
#define FIO_STAT_H

#include "iolog.h"
#include "lib/output_buffer.h"

struct group_run_stats {
	uint64_t max_run[DDIR_RWDIR_CNT], min_run[DDIR_RWDIR_CNT];
	uint64_t max_bw[DDIR_RWDIR_CNT], min_bw[DDIR_RWDIR_CNT];
	uint64_t iobytes[DDIR_RWDIR_CNT];
	uint64_t agg[DDIR_RWDIR_CNT];
	uint32_t kb_base;
	uint32_t unit_base;
	uint32_t groupid;
	uint32_t unified_rw_rep;
} __attribute__((packed));

/*
 * How many depth levels to log
 */
#define FIO_IO_U_MAP_NR	7
#define FIO_IO_U_LAT_N_NR 10
#define FIO_IO_U_LAT_U_NR 10
#define FIO_IO_U_LAT_M_NR 12

/*
 * Aggregate clat samples to report percentile(s) of them.
 *
 * EXECUTIVE SUMMARY
 *
 * FIO_IO_U_PLAT_BITS determines the maximum statistical error on the
 * value of resulting percentiles. The error will be approximately
 * 1/2^(FIO_IO_U_PLAT_BITS+1) of the value.
 *
 * FIO_IO_U_PLAT_GROUP_NR and FIO_IO_U_PLAT_BITS determine the maximum
 * range being tracked for latency samples. The maximum value tracked
 * accurately will be 2^(GROUP_NR + PLAT_BITS -1) microseconds.
 *
 * FIO_IO_U_PLAT_GROUP_NR and FIO_IO_U_PLAT_BITS determine the memory
 * requirement of storing those aggregate counts. The memory used will
 * be (FIO_IO_U_PLAT_GROUP_NR * 2^FIO_IO_U_PLAT_BITS) * sizeof(int)
 * bytes.
 *
 * FIO_IO_U_PLAT_NR is the total number of buckets.
 *
 * DETAILS
 *
 * Suppose the clat varies from 0 to 999 (usec), the straightforward
 * method is to keep an array of (999 + 1) buckets, in which a counter
 * keeps the count of samples which fall in the bucket, e.g.,
 * {[0],[1],...,[999]}. However this consumes a huge amount of space,
 * and can be avoided if an approximation is acceptable.
 *
 * One such method is to let the range of the bucket to be greater
 * than one. This method has low accuracy when the value is small. For
 * example, let the buckets be {[0,99],[100,199],...,[900,999]}, and
 * the represented value of each bucket be the mean of the range. Then
 * a value 0 has an round-off error of 49.5. To improve on this, we
 * use buckets with non-uniform ranges, while bounding the error of
 * each bucket within a ratio of the sample value. A simple example
 * would be when error_bound = 0.005, buckets are {
 * {[0],[1],...,[99]}, {[100,101],[102,103],...,[198,199]},..,
 * {[900,909],[910,919]...}  }. The total range is partitioned into
 * groups with different ranges, then buckets with uniform ranges. An
 * upper bound of the error is (range_of_bucket/2)/value_of_bucket
 *
 * For better efficiency, we implement this using base two. We group
 * samples by their Most Significant Bit (MSB), extract the next M bit
 * of them as an index within the group, and discard the rest of the
 * bits.
 *
 * E.g., assume a sample 'x' whose MSB is bit n (starting from bit 0),
 * and use M bit for indexing
 *
 *        | n |    M bits   | bit (n-M-1) ... bit 0 |
 *
 * Because x is at least 2^n, and bit 0 to bit (n-M-1) is at most
 * (2^(n-M) - 1), discarding bit 0 to (n-M-1) makes the round-off
 * error
 *
 *           2^(n-M)-1    2^(n-M)    1
 *      e <= --------- <= ------- = ---
 *             2^n          2^n     2^M
 *
 * Furthermore, we use "mean" of the range to represent the bucket,
 * the error e can be lowered by half to 1 / 2^(M+1). By using M bits
 * as the index, each group must contains 2^M buckets.
 *
 * E.g. Let M (FIO_IO_U_PLAT_BITS) be 6
 *      Error bound is 1/2^(6+1) = 0.0078125 (< 1%)
 *
 *	Group	MSB	#discarded	range of		#buckets
 *			error_bits	value
 *	----------------------------------------------------------------
 *	0*	0~5	0		[0,63]			64
 *	1*	6	0		[64,127]		64
 *	2	7	1		[128,255]		64
 *	3	8	2		[256,511]		64
 *	4	9	3		[512,1023]		64
 *	...	...	...		[...,...]		...
 *	18	23	17		[8838608,+inf]**	64
 *
 *  * Special cases: when n < (M-1) or when n == (M-1), in both cases,
 *    the value cannot be rounded off. Use all bits of the sample as
 *    index.
 *
 *  ** If a sample's MSB is greater than 23, it will be counted as 23.
 */

#define FIO_IO_U_PLAT_BITS 6
#define FIO_IO_U_PLAT_VAL (1 << FIO_IO_U_PLAT_BITS)
#define FIO_IO_U_PLAT_GROUP_NR 29
#define FIO_IO_U_PLAT_NR (FIO_IO_U_PLAT_GROUP_NR * FIO_IO_U_PLAT_VAL)
#define FIO_IO_U_LIST_MAX_LEN 20 /* The size of the default and user-specified
					list of percentiles */

/*
 * Trim cycle count measurements
 */
#define MAX_NR_BLOCK_INFOS	8192
#define BLOCK_INFO_STATE_SHIFT	29
#define BLOCK_INFO_TRIMS(block_info)	\
	((block_info) & ((1 << BLOCK_INFO_STATE_SHIFT) - 1))
#define BLOCK_INFO_STATE(block_info)		\
	((block_info) >> BLOCK_INFO_STATE_SHIFT)
#define BLOCK_INFO(state, trim_cycles)	\
	((trim_cycles) | ((unsigned int) (state) << BLOCK_INFO_STATE_SHIFT))
#define BLOCK_INFO_SET_STATE(block_info, state)	\
	BLOCK_INFO(state, BLOCK_INFO_TRIMS(block_info))
enum block_info_state {
	BLOCK_STATE_UNINIT,
	BLOCK_STATE_TRIMMED,
	BLOCK_STATE_WRITTEN,
	BLOCK_STATE_TRIM_FAILURE,
	BLOCK_STATE_WRITE_FAILURE,
	BLOCK_STATE_COUNT,
};

#define MAX_PATTERN_SIZE	512
#define FIO_JOBNAME_SIZE	128
#define FIO_JOBDESC_SIZE	256
#define FIO_VERROR_SIZE		128

struct thread_stat {
	char name[FIO_JOBNAME_SIZE];
	char verror[FIO_VERROR_SIZE];
	uint32_t error;
	uint32_t thread_number;
	uint32_t groupid;
	uint32_t pid;
	char description[FIO_JOBDESC_SIZE];
	uint32_t members;
	uint32_t unified_rw_rep;

	/*
	 * bandwidth and latency stats
	 */
	struct io_stat clat_stat[DDIR_RWDIR_CNT]; /* completion latency */
	struct io_stat slat_stat[DDIR_RWDIR_CNT]; /* submission latency */
	struct io_stat lat_stat[DDIR_RWDIR_CNT]; /* total latency */
	struct io_stat bw_stat[DDIR_RWDIR_CNT]; /* bandwidth stats */
	struct io_stat iops_stat[DDIR_RWDIR_CNT]; /* IOPS stats */

	/*
	 * fio system usage accounting
	 */
	uint64_t usr_time;
	uint64_t sys_time;
	uint64_t ctx;
	uint64_t minf, majf;

	/*
	 * IO depth and latency stats
	 */
	uint64_t clat_percentiles;
	uint64_t percentile_precision;
	fio_fp64_t percentile_list[FIO_IO_U_LIST_MAX_LEN];

	uint32_t io_u_map[FIO_IO_U_MAP_NR];
	uint32_t io_u_submit[FIO_IO_U_MAP_NR];
	uint32_t io_u_complete[FIO_IO_U_MAP_NR];
	uint32_t io_u_lat_n[FIO_IO_U_LAT_N_NR];
	uint32_t io_u_lat_u[FIO_IO_U_LAT_U_NR];
	uint32_t io_u_lat_m[FIO_IO_U_LAT_M_NR];
	uint32_t io_u_plat[DDIR_RWDIR_CNT][FIO_IO_U_PLAT_NR];
	uint32_t pad;

	uint64_t total_io_u[DDIR_RWDIR_CNT];
	uint64_t short_io_u[DDIR_RWDIR_CNT];
	uint64_t drop_io_u[DDIR_RWDIR_CNT];
	uint64_t total_submit;
	uint64_t total_complete;

	uint64_t io_bytes[DDIR_RWDIR_CNT];
	uint64_t runtime[DDIR_RWDIR_CNT];
	uint64_t total_run_time;

	/*
	 * IO Error related stats
	 */
	union {
		uint16_t continue_on_error;
		uint32_t pad2;
	};
	uint32_t first_error;
	uint64_t total_err_count;

	uint64_t nr_block_infos;
	uint32_t block_infos[MAX_NR_BLOCK_INFOS];

	uint32_t kb_base;
	uint32_t unit_base;

	uint32_t latency_depth;
	uint32_t pad3;
	uint64_t latency_target;
	fio_fp64_t latency_percentile;
	uint64_t latency_window;

	uint64_t ss_dur;
	uint32_t ss_state;
	uint32_t ss_head;

	fio_fp64_t ss_limit;
	fio_fp64_t ss_slope;
	fio_fp64_t ss_deviation;
	fio_fp64_t ss_criterion;

	union {
		uint64_t *ss_iops_data;
		uint64_t pad4;
	};

	union {
		uint64_t *ss_bw_data;
		uint64_t pad5;
	};
} __attribute__((packed));

struct jobs_eta {
	uint32_t nr_running;
	uint32_t nr_ramp;

	uint32_t nr_pending;
	uint32_t nr_setting_up;

	uint64_t m_rate[DDIR_RWDIR_CNT], t_rate[DDIR_RWDIR_CNT];
	uint64_t rate[DDIR_RWDIR_CNT];
	uint32_t m_iops[DDIR_RWDIR_CNT], t_iops[DDIR_RWDIR_CNT];
	uint32_t iops[DDIR_RWDIR_CNT];
	uint64_t elapsed_sec;
	uint64_t eta_sec;
	uint32_t is_pow2;
	uint32_t unit_base;

	uint32_t files_open;

	/*
	 * Network 'copy' of run_str[]
	 */
	uint32_t nr_threads;
	uint8_t run_str[];
} __attribute__((packed));

struct io_u_plat_entry {
	struct flist_head list;
	unsigned int io_u_plat[FIO_IO_U_PLAT_NR];
};

extern struct fio_mutex *stat_mutex;

extern struct jobs_eta *get_jobs_eta(bool force, size_t *size);

extern void stat_init(void);
extern void stat_exit(void);

extern struct json_object * show_thread_status(struct thread_stat *ts, struct group_run_stats *rs, struct flist_head *, struct buf_output *);
extern void show_group_stats(struct group_run_stats *rs, struct buf_output *);
extern bool calc_thread_status(struct jobs_eta *je, int force);
extern void display_thread_status(struct jobs_eta *je);
extern void show_run_stats(void);
extern void __show_run_stats(void);
extern void __show_running_run_stats(void);
extern void show_running_run_stats(void);
extern void check_for_running_stats(void);
extern void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, bool first);
extern void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src);
extern void init_thread_stat(struct thread_stat *ts);
extern void init_group_run_stat(struct group_run_stats *gs);
extern void eta_to_str(char *str, unsigned long eta_sec);
extern bool calc_lat(struct io_stat *is, unsigned long long *min, unsigned long long *max, double *mean, double *dev);
extern unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr, fio_fp64_t *plist, unsigned long long **output, unsigned long long *maxv, unsigned long long *minv);
extern void stat_calc_lat_n(struct thread_stat *ts, double *io_u_lat);
extern void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat);
extern void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat);
extern void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist);
extern void reset_io_stats(struct thread_data *);
extern void update_rusage_stat(struct thread_data *);
extern void clear_rusage_stat(struct thread_data *);

extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long long,
				unsigned int, uint64_t);
extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long long,
				unsigned int, uint64_t);
extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
				unsigned int, uint64_t);
extern void add_agg_sample(union io_sample_data, enum fio_ddir, unsigned int);
extern void add_iops_sample(struct thread_data *, struct io_u *,
				unsigned int);
extern void add_bw_sample(struct thread_data *, struct io_u *,
				unsigned int, unsigned long long);
extern int calc_log_samples(void);

extern struct io_log *agg_io_log[DDIR_RWDIR_CNT];
extern int write_bw_log;

static inline bool nsec_to_usec(unsigned long long *min,
				unsigned long long *max, double *mean,
				double *dev)
{
	if (*min > 2000 && *max > 99999 && *dev > 1000.0) {
		*min /= 1000;
		*max /= 1000;
		*mean /= 1000.0;
		*dev /= 1000.0;
		return true;
	}

	return false;
}

static inline bool nsec_to_msec(unsigned long long *min,
				unsigned long long *max, double *mean,
				double *dev)
{
	if (*min > 2000000 && *max > 99999999ULL && *dev > 1000000.0) {
		*min /= 1000000;
		*max /= 1000000;
		*mean /= 1000000.0;
		*dev /= 1000000.0;
		return true;
	}

	return false;
}

/*
 * Worst level condensing would be 1:5, so allow enough room for that
 */
#define __THREAD_RUNSTR_SZ(nr)	((nr) * 5)
#define THREAD_RUNSTR_SZ	__THREAD_RUNSTR_SZ(thread_number)

uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u);

#endif
Commit	Line	Data
	1	#ifndef FIO_STAT_H
	2	#define FIO_STAT_H
	3
	4	#include "iolog.h"
	5	#include "lib/output_buffer.h"
	6
	7	struct group_run_stats {
	8	uint64_t max_run[DDIR_RWDIR_CNT], min_run[DDIR_RWDIR_CNT];
	9	uint64_t max_bw[DDIR_RWDIR_CNT], min_bw[DDIR_RWDIR_CNT];
	10	uint64_t iobytes[DDIR_RWDIR_CNT];
	11	uint64_t agg[DDIR_RWDIR_CNT];
	12	uint32_t kb_base;
	13	uint32_t unit_base;
	14	uint32_t groupid;
	15	uint32_t unified_rw_rep;
	16	} __attribute__((packed));
	17
	18	/*
	19	* How many depth levels to log
	20	*/
	21	#define FIO_IO_U_MAP_NR 7
	22	#define FIO_IO_U_LAT_N_NR 10
	23	#define FIO_IO_U_LAT_U_NR 10
	24	#define FIO_IO_U_LAT_M_NR 12
	25
	26	/*
	27	* Aggregate clat samples to report percentile(s) of them.
	28	*
	29	* EXECUTIVE SUMMARY
	30	*
	31	* FIO_IO_U_PLAT_BITS determines the maximum statistical error on the
	32	* value of resulting percentiles. The error will be approximately
	33	* 1/2^(FIO_IO_U_PLAT_BITS+1) of the value.
	34	*
	35	* FIO_IO_U_PLAT_GROUP_NR and FIO_IO_U_PLAT_BITS determine the maximum
	36	* range being tracked for latency samples. The maximum value tracked
	37	* accurately will be 2^(GROUP_NR + PLAT_BITS -1) microseconds.
	38	*
	39	* FIO_IO_U_PLAT_GROUP_NR and FIO_IO_U_PLAT_BITS determine the memory
	40	* requirement of storing those aggregate counts. The memory used will
	41	* be (FIO_IO_U_PLAT_GROUP_NR * 2^FIO_IO_U_PLAT_BITS) * sizeof(int)
	42	* bytes.
	43	*
	44	* FIO_IO_U_PLAT_NR is the total number of buckets.
	45	*
	46	* DETAILS
	47	*
	48	* Suppose the clat varies from 0 to 999 (usec), the straightforward
	49	* method is to keep an array of (999 + 1) buckets, in which a counter
	50	* keeps the count of samples which fall in the bucket, e.g.,
	51	* {[0],[1],...,[999]}. However this consumes a huge amount of space,
	52	* and can be avoided if an approximation is acceptable.
	53	*
	54	* One such method is to let the range of the bucket to be greater
	55	* than one. This method has low accuracy when the value is small. For
	56	* example, let the buckets be {[0,99],[100,199],...,[900,999]}, and
	57	* the represented value of each bucket be the mean of the range. Then
	58	* a value 0 has an round-off error of 49.5. To improve on this, we
	59	* use buckets with non-uniform ranges, while bounding the error of
	60	* each bucket within a ratio of the sample value. A simple example
	61	* would be when error_bound = 0.005, buckets are {
	62	* {[0],[1],...,[99]}, {[100,101],[102,103],...,[198,199]},..,
	63	* {[900,909],[910,919]...} }. The total range is partitioned into
	64	* groups with different ranges, then buckets with uniform ranges. An
	65	* upper bound of the error is (range_of_bucket/2)/value_of_bucket
	66	*
	67	* For better efficiency, we implement this using base two. We group
	68	* samples by their Most Significant Bit (MSB), extract the next M bit
	69	* of them as an index within the group, and discard the rest of the
	70	* bits.
	71	*
	72	* E.g., assume a sample 'x' whose MSB is bit n (starting from bit 0),
	73	* and use M bit for indexing
	74	*
	75	* \| n \| M bits \| bit (n-M-1) ... bit 0 \|
	76	*
	77	* Because x is at least 2^n, and bit 0 to bit (n-M-1) is at most
	78	* (2^(n-M) - 1), discarding bit 0 to (n-M-1) makes the round-off
	79	* error
	80	*
	81	* 2^(n-M)-1 2^(n-M) 1
	82	* e <= --------- <= ------- = ---
	83	* 2^n 2^n 2^M
	84	*
	85	* Furthermore, we use "mean" of the range to represent the bucket,
	86	* the error e can be lowered by half to 1 / 2^(M+1). By using M bits
	87	* as the index, each group must contains 2^M buckets.
	88	*
	89	* E.g. Let M (FIO_IO_U_PLAT_BITS) be 6
	90	* Error bound is 1/2^(6+1) = 0.0078125 (< 1%)
	91	*
	92	* Group MSB #discarded range of #buckets
	93	* error_bits value
	94	* ----------------------------------------------------------------
	95	* 0* 0~5 0 [0,63] 64
	96	* 1* 6 0 [64,127] 64
	97	* 2 7 1 [128,255] 64
	98	* 3 8 2 [256,511] 64
	99	* 4 9 3 [512,1023] 64
	100	* ... ... ... [...,...] ...
	101	* 18 23 17 [8838608,+inf]** 64
	102	*
	103	* * Special cases: when n < (M-1) or when n == (M-1), in both cases,
	104	* the value cannot be rounded off. Use all bits of the sample as
	105	* index.
	106	*
	107	* ** If a sample's MSB is greater than 23, it will be counted as 23.
	108	*/
	109
	110	#define FIO_IO_U_PLAT_BITS 6
	111	#define FIO_IO_U_PLAT_VAL (1 << FIO_IO_U_PLAT_BITS)
	112	#define FIO_IO_U_PLAT_GROUP_NR 29
	113	#define FIO_IO_U_PLAT_NR (FIO_IO_U_PLAT_GROUP_NR * FIO_IO_U_PLAT_VAL)
	114	#define FIO_IO_U_LIST_MAX_LEN 20 /* The size of the default and user-specified
	115	list of percentiles */
	116
	117	/*
	118	* Trim cycle count measurements
	119	*/
	120	#define MAX_NR_BLOCK_INFOS 8192
	121	#define BLOCK_INFO_STATE_SHIFT 29
	122	#define BLOCK_INFO_TRIMS(block_info) \
	123	((block_info) & ((1 << BLOCK_INFO_STATE_SHIFT) - 1))
	124	#define BLOCK_INFO_STATE(block_info) \
	125	((block_info) >> BLOCK_INFO_STATE_SHIFT)
	126	#define BLOCK_INFO(state, trim_cycles) \
	127	((trim_cycles) \| ((unsigned int) (state) << BLOCK_INFO_STATE_SHIFT))
	128	#define BLOCK_INFO_SET_STATE(block_info, state) \
	129	BLOCK_INFO(state, BLOCK_INFO_TRIMS(block_info))
	130	enum block_info_state {
	131	BLOCK_STATE_UNINIT,
	132	BLOCK_STATE_TRIMMED,
	133	BLOCK_STATE_WRITTEN,
	134	BLOCK_STATE_TRIM_FAILURE,
	135	BLOCK_STATE_WRITE_FAILURE,
	136	BLOCK_STATE_COUNT,
	137	};
	138
	139	#define MAX_PATTERN_SIZE 512
	140	#define FIO_JOBNAME_SIZE 128
	141	#define FIO_JOBDESC_SIZE 256
	142	#define FIO_VERROR_SIZE 128
	143
	144	struct thread_stat {
	145	char name[FIO_JOBNAME_SIZE];
	146	char verror[FIO_VERROR_SIZE];
	147	uint32_t error;
	148	uint32_t thread_number;
	149	uint32_t groupid;
	150	uint32_t pid;
	151	char description[FIO_JOBDESC_SIZE];
	152	uint32_t members;
	153	uint32_t unified_rw_rep;
	154
	155	/*
	156	* bandwidth and latency stats
	157	*/
	158	struct io_stat clat_stat[DDIR_RWDIR_CNT]; /* completion latency */
	159	struct io_stat slat_stat[DDIR_RWDIR_CNT]; /* submission latency */
	160	struct io_stat lat_stat[DDIR_RWDIR_CNT]; /* total latency */
	161	struct io_stat bw_stat[DDIR_RWDIR_CNT]; /* bandwidth stats */
	162	struct io_stat iops_stat[DDIR_RWDIR_CNT]; /* IOPS stats */
	163
	164	/*
	165	* fio system usage accounting
	166	*/
	167	uint64_t usr_time;
	168	uint64_t sys_time;
	169	uint64_t ctx;
	170	uint64_t minf, majf;
	171
	172	/*
	173	* IO depth and latency stats
	174	*/
	175	uint64_t clat_percentiles;
	176	uint64_t percentile_precision;
	177	fio_fp64_t percentile_list[FIO_IO_U_LIST_MAX_LEN];
	178
	179	uint32_t io_u_map[FIO_IO_U_MAP_NR];
	180	uint32_t io_u_submit[FIO_IO_U_MAP_NR];
	181	uint32_t io_u_complete[FIO_IO_U_MAP_NR];
	182	uint32_t io_u_lat_n[FIO_IO_U_LAT_N_NR];
	183	uint32_t io_u_lat_u[FIO_IO_U_LAT_U_NR];
	184	uint32_t io_u_lat_m[FIO_IO_U_LAT_M_NR];
	185	uint32_t io_u_plat[DDIR_RWDIR_CNT][FIO_IO_U_PLAT_NR];
	186	uint32_t pad;
	187
	188	uint64_t total_io_u[DDIR_RWDIR_CNT];
	189	uint64_t short_io_u[DDIR_RWDIR_CNT];
	190	uint64_t drop_io_u[DDIR_RWDIR_CNT];
	191	uint64_t total_submit;
	192	uint64_t total_complete;
	193
	194	uint64_t io_bytes[DDIR_RWDIR_CNT];
	195	uint64_t runtime[DDIR_RWDIR_CNT];
	196	uint64_t total_run_time;
	197
	198	/*
	199	* IO Error related stats
	200	*/
	201	union {
	202	uint16_t continue_on_error;
	203	uint32_t pad2;
	204	};
	205	uint32_t first_error;
	206	uint64_t total_err_count;
	207
	208	uint64_t nr_block_infos;
	209	uint32_t block_infos[MAX_NR_BLOCK_INFOS];
	210
	211	uint32_t kb_base;
	212	uint32_t unit_base;
	213
	214	uint32_t latency_depth;
	215	uint32_t pad3;
	216	uint64_t latency_target;
	217	fio_fp64_t latency_percentile;
	218	uint64_t latency_window;
	219
	220	uint64_t ss_dur;
	221	uint32_t ss_state;
	222	uint32_t ss_head;
	223
	224	fio_fp64_t ss_limit;
	225	fio_fp64_t ss_slope;
	226	fio_fp64_t ss_deviation;
	227	fio_fp64_t ss_criterion;
	228
	229	union {
	230	uint64_t *ss_iops_data;
	231	uint64_t pad4;
	232	};
	233
	234	union {
	235	uint64_t *ss_bw_data;
	236	uint64_t pad5;
	237	};
	238	} __attribute__((packed));
	239
	240	struct jobs_eta {
	241	uint32_t nr_running;
	242	uint32_t nr_ramp;
	243
	244	uint32_t nr_pending;
	245	uint32_t nr_setting_up;
	246
	247	uint64_t m_rate[DDIR_RWDIR_CNT], t_rate[DDIR_RWDIR_CNT];
	248	uint64_t rate[DDIR_RWDIR_CNT];
	249	uint32_t m_iops[DDIR_RWDIR_CNT], t_iops[DDIR_RWDIR_CNT];
	250	uint32_t iops[DDIR_RWDIR_CNT];
	251	uint64_t elapsed_sec;
	252	uint64_t eta_sec;
	253	uint32_t is_pow2;
	254	uint32_t unit_base;
	255
	256	uint32_t files_open;
	257
	258	/*
	259	* Network 'copy' of run_str[]
	260	*/
	261	uint32_t nr_threads;
	262	uint8_t run_str[];
	263	} __attribute__((packed));
	264
	265	struct io_u_plat_entry {
	266	struct flist_head list;
	267	unsigned int io_u_plat[FIO_IO_U_PLAT_NR];
	268	};
	269
	270	extern struct fio_mutex *stat_mutex;
	271
	272	extern struct jobs_eta get_jobs_eta(bool force, size_t size);
	273
	274	extern void stat_init(void);
	275	extern void stat_exit(void);
	276
	277	extern struct json_object * show_thread_status(struct thread_stat ts, struct group_run_stats rs, struct flist_head , struct buf_output );
	278	extern void show_group_stats(struct group_run_stats rs, struct buf_output );
	279	extern bool calc_thread_status(struct jobs_eta *je, int force);
	280	extern void display_thread_status(struct jobs_eta *je);
	281	extern void show_run_stats(void);
	282	extern void __show_run_stats(void);
	283	extern void __show_running_run_stats(void);
	284	extern void show_running_run_stats(void);
	285	extern void check_for_running_stats(void);
	286	extern void sum_thread_stats(struct thread_stat dst, struct thread_stat src, bool first);
	287	extern void sum_group_stats(struct group_run_stats dst, struct group_run_stats src);
	288	extern void init_thread_stat(struct thread_stat *ts);
	289	extern void init_group_run_stat(struct group_run_stats *gs);
	290	extern void eta_to_str(char *str, unsigned long eta_sec);
	291	extern bool calc_lat(struct io_stat is, unsigned long long min, unsigned long long max, double mean, double *dev);
	292	extern unsigned int calc_clat_percentiles(unsigned int io_u_plat, unsigned long nr, fio_fp64_t plist, unsigned long long *output, unsigned long long maxv, unsigned long long *minv);
	293	extern void stat_calc_lat_n(struct thread_stat ts, double io_u_lat);
	294	extern void stat_calc_lat_m(struct thread_stat ts, double io_u_lat);
	295	extern void stat_calc_lat_u(struct thread_stat ts, double io_u_lat);
	296	extern void stat_calc_dist(unsigned int map, unsigned long total, double io_u_dist);
	297	extern void reset_io_stats(struct thread_data *);
	298	extern void update_rusage_stat(struct thread_data *);
	299	extern void clear_rusage_stat(struct thread_data *);
	300
	301	extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long long,
	302	unsigned int, uint64_t);
	303	extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long long,
	304	unsigned int, uint64_t);
	305	extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
	306	unsigned int, uint64_t);
	307	extern void add_agg_sample(union io_sample_data, enum fio_ddir, unsigned int);
	308	extern void add_iops_sample(struct thread_data , struct io_u ,
	309	unsigned int);
	310	extern void add_bw_sample(struct thread_data , struct io_u ,
	311	unsigned int, unsigned long long);
	312	extern int calc_log_samples(void);
	313
	314	extern struct io_log *agg_io_log[DDIR_RWDIR_CNT];
	315	extern int write_bw_log;
	316
	317	static inline bool nsec_to_usec(unsigned long long *min,
	318	unsigned long long max, double mean,
	319	double *dev)
	320	{
	321	if (min > 2000 && max > 99999 && *dev > 1000.0) {
	322	*min /= 1000;
	323	*max /= 1000;
	324	*mean /= 1000.0;
	325	*dev /= 1000.0;
	326	return true;
	327	}
	328
	329	return false;
	330	}
	331
	332	static inline bool nsec_to_msec(unsigned long long *min,
	333	unsigned long long max, double mean,
	334	double *dev)
	335	{
	336	if (min > 2000000 && max > 99999999ULL && *dev > 1000000.0) {
	337	*min /= 1000000;
	338	*max /= 1000000;
	339	*mean /= 1000000.0;
	340	*dev /= 1000000.0;
	341	return true;
	342	}
	343
	344	return false;
	345	}
	346
	347	/*
	348	* Worst level condensing would be 1:5, so allow enough room for that
	349	*/
	350	#define __THREAD_RUNSTR_SZ(nr) ((nr) * 5)
	351	#define THREAD_RUNSTR_SZ __THREAD_RUNSTR_SZ(thread_number)
	352
	353	uint32_t io_u_block_info(struct thread_data td, struct io_u *io_u);
	354
	355	#endif