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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_STATS_H
#define __PERF_STATS_H
#include <linux/types.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/resource.h>
#include "cpumap.h"
#include "rblist.h"
#include "counts.h"
struct perf_cpu_map;
struct perf_stat_config;
struct timespec;
struct stats {
double n, mean, M2;
u64 max, min;
};
/* hold aggregated event info */
struct perf_stat_aggr {
/* aggregated values */
struct perf_counts_values counts;
/* number of entries (CPUs) aggregated */
int nr;
/* whether any entry has failed to read/process event */
bool failed;
/* to mark this data is processed already */
bool used;
};
/* per-evsel event stats */
struct perf_stat_evsel {
/* used for repeated runs */
struct stats res_stats;
/* number of allocated 'aggr' */
int nr_aggr;
/* aggregated event values */
struct perf_stat_aggr *aggr;
/* used for group read */
u64 *group_data;
};
enum aggr_mode {
AGGR_NONE,
AGGR_GLOBAL,
AGGR_SOCKET,
AGGR_DIE,
AGGR_CORE,
AGGR_THREAD,
AGGR_UNSET,
AGGR_NODE,
AGGR_MAX
};
struct rusage_stats {
struct stats ru_utime_usec_stat;
struct stats ru_stime_usec_stat;
};
typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, struct perf_cpu cpu);
struct perf_stat_config {
enum aggr_mode aggr_mode;
bool scale;
bool no_inherit;
bool identifier;
bool csv_output;
bool json_output;
bool interval_clear;
bool metric_only;
bool null_run;
bool ru_display;
bool big_num;
bool no_merge;
bool hybrid_merge;
bool walltime_run_table;
bool all_kernel;
bool all_user;
bool percore_show_thread;
bool summary;
bool no_csv_summary;
bool metric_no_group;
bool metric_no_merge;
bool metric_no_threshold;
bool stop_read_counter;
bool iostat_run;
char *user_requested_cpu_list;
bool system_wide;
FILE *output;
unsigned int interval;
unsigned int timeout;
unsigned int unit_width;
unsigned int metric_only_len;
int times;
int run_count;
int print_free_counters_hint;
int print_mixed_hw_group_error;
const char *csv_sep;
struct stats *walltime_nsecs_stats;
struct rusage ru_data;
struct rusage_stats *ru_stats;
struct cpu_aggr_map *aggr_map;
aggr_get_id_t aggr_get_id;
struct cpu_aggr_map *cpus_aggr_map;
u64 *walltime_run;
struct rblist metric_events;
int ctl_fd;
int ctl_fd_ack;
bool ctl_fd_close;
const char *cgroup_list;
unsigned int topdown_level;
};
void perf_stat__set_big_num(int set);
void perf_stat__set_no_csv_summary(int set);
void update_stats(struct stats *stats, u64 val);
double avg_stats(struct stats *stats);
double stddev_stats(struct stats *stats);
double rel_stddev_stats(double stddev, double avg);
static inline void init_stats(struct stats *stats)
{
stats->n = 0.0;
stats->mean = 0.0;
stats->M2 = 0.0;
stats->min = (u64) -1;
stats->max = 0;
}
static inline void init_rusage_stats(struct rusage_stats *ru_stats) {
init_stats(&ru_stats->ru_utime_usec_stat);
init_stats(&ru_stats->ru_stime_usec_stat);
}
static inline void update_rusage_stats(struct rusage_stats *ru_stats, struct rusage* rusage) {
const u64 us_to_ns = 1000;
const u64 s_to_ns = 1000000000;
update_stats(&ru_stats->ru_utime_usec_stat,
(rusage->ru_utime.tv_usec * us_to_ns + rusage->ru_utime.tv_sec * s_to_ns));
update_stats(&ru_stats->ru_stime_usec_stat,
(rusage->ru_stime.tv_usec * us_to_ns + rusage->ru_stime.tv_sec * s_to_ns));
}
struct evsel;
struct evlist;
extern struct stats walltime_nsecs_stats;
extern struct rusage_stats ru_stats;
typedef void (*print_metric_t)(struct perf_stat_config *config,
void *ctx, const char *color, const char *unit,
const char *fmt, double val);
typedef void (*new_line_t)(struct perf_stat_config *config, void *ctx);
void perf_stat__reset_shadow_stats(void);
struct perf_stat_output_ctx {
void *ctx;
print_metric_t print_metric;
new_line_t new_line;
bool force_header;
};
void perf_stat__print_shadow_stats(struct perf_stat_config *config,
struct evsel *evsel,
double avg, int aggr_idx,
struct perf_stat_output_ctx *out,
struct rblist *metric_events);
int evlist__alloc_stats(struct perf_stat_config *config,
struct evlist *evlist, bool alloc_raw);
void evlist__free_stats(struct evlist *evlist);
void evlist__reset_stats(struct evlist *evlist);
void evlist__reset_prev_raw_counts(struct evlist *evlist);
void evlist__copy_prev_raw_counts(struct evlist *evlist);
void evlist__save_aggr_prev_raw_counts(struct evlist *evlist);
int evlist__alloc_aggr_stats(struct evlist *evlist, int nr_aggr);
void evlist__reset_aggr_stats(struct evlist *evlist);
int perf_stat_process_counter(struct perf_stat_config *config,
struct evsel *counter);
void perf_stat_merge_counters(struct perf_stat_config *config, struct evlist *evlist);
void perf_stat_process_percore(struct perf_stat_config *config, struct evlist *evlist);
struct perf_tool;
union perf_event;
struct perf_session;
struct target;
int perf_event__process_stat_event(struct perf_session *session,
union perf_event *event);
size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
int create_perf_stat_counter(struct evsel *evsel,
struct perf_stat_config *config,
struct target *target,
int cpu_map_idx);
void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
struct target *_target, struct timespec *ts, int argc, const char **argv);
struct metric_expr;
double test_generic_metric(struct metric_expr *mexp, int aggr_idx);
#endif
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