[mirror_ubuntu-kernels.git] / tools / perf / util / stat.c

// SPDX-License-Identifier: GPL-2.0
#include <errno.h>
#include <inttypes.h>
#include <math.h>
#include "stat.h"
#include "evlist.h"
#include "evsel.h"
#include "thread_map.h"

void update_stats(struct stats *stats, u64 val)
{
	double delta;

	stats->n++;
	delta = val - stats->mean;
	stats->mean += delta / stats->n;
	stats->M2 += delta*(val - stats->mean);

	if (val > stats->max)
		stats->max = val;

	if (val < stats->min)
		stats->min = val;
}

double avg_stats(struct stats *stats)
{
	return stats->mean;
}

/*
 * http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
 *
 *       (\Sum n_i^2) - ((\Sum n_i)^2)/n
 * s^2 = -------------------------------
 *                  n - 1
 *
 * http://en.wikipedia.org/wiki/Stddev
 *
 * The std dev of the mean is related to the std dev by:
 *
 *             s
 * s_mean = -------
 *          sqrt(n)
 *
 */
double stddev_stats(struct stats *stats)
{
	double variance, variance_mean;

	if (stats->n < 2)
		return 0.0;

	variance = stats->M2 / (stats->n - 1);
	variance_mean = variance / stats->n;

	return sqrt(variance_mean);
}

double rel_stddev_stats(double stddev, double avg)
{
	double pct = 0.0;

	if (avg)
		pct = 100.0 * stddev/avg;

	return pct;
}

bool __perf_evsel_stat__is(struct perf_evsel *evsel,
			   enum perf_stat_evsel_id id)
{
	struct perf_stat_evsel *ps = evsel->priv;

	return ps->id == id;
}

#define ID(id, name) [PERF_STAT_EVSEL_ID__##id] = #name
static const char *id_str[PERF_STAT_EVSEL_ID__MAX] = {
	ID(NONE,		x),
	ID(CYCLES_IN_TX,	cpu/cycles-t/),
	ID(TRANSACTION_START,	cpu/tx-start/),
	ID(ELISION_START,	cpu/el-start/),
	ID(CYCLES_IN_TX_CP,	cpu/cycles-ct/),
	ID(TOPDOWN_TOTAL_SLOTS, topdown-total-slots),
	ID(TOPDOWN_SLOTS_ISSUED, topdown-slots-issued),
	ID(TOPDOWN_SLOTS_RETIRED, topdown-slots-retired),
	ID(TOPDOWN_FETCH_BUBBLES, topdown-fetch-bubbles),
	ID(TOPDOWN_RECOVERY_BUBBLES, topdown-recovery-bubbles),
	ID(SMI_NUM, msr/smi/),
	ID(APERF, msr/aperf/),
};
#undef ID

void perf_stat_evsel_id_init(struct perf_evsel *evsel)
{
	struct perf_stat_evsel *ps = evsel->priv;
	int i;

	/* ps->id is 0 hence PERF_STAT_EVSEL_ID__NONE by default */

	for (i = 0; i < PERF_STAT_EVSEL_ID__MAX; i++) {
		if (!strcmp(perf_evsel__name(evsel), id_str[i])) {
			ps->id = i;
			break;
		}
	}
}

static void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
{
	int i;
	struct perf_stat_evsel *ps = evsel->priv;

	for (i = 0; i < 3; i++)
		init_stats(&ps->res_stats[i]);

	perf_stat_evsel_id_init(evsel);
}

static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
{
	evsel->priv = zalloc(sizeof(struct perf_stat_evsel));
	if (evsel->priv == NULL)
		return -ENOMEM;
	perf_evsel__reset_stat_priv(evsel);
	return 0;
}

static void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
{
	struct perf_stat_evsel *ps = evsel->priv;

	if (ps)
		free(ps->group_data);
	zfree(&evsel->priv);
}

static int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel,
					     int ncpus, int nthreads)
{
	struct perf_counts *counts;

	counts = perf_counts__new(ncpus, nthreads);
	if (counts)
		evsel->prev_raw_counts = counts;

	return counts ? 0 : -ENOMEM;
}

static void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel)
{
	perf_counts__delete(evsel->prev_raw_counts);
	evsel->prev_raw_counts = NULL;
}

static int perf_evsel__alloc_stats(struct perf_evsel *evsel, bool alloc_raw)
{
	int ncpus = perf_evsel__nr_cpus(evsel);
	int nthreads = thread_map__nr(evsel->threads);

	if (perf_evsel__alloc_stat_priv(evsel) < 0 ||
	    perf_evsel__alloc_counts(evsel, ncpus, nthreads) < 0 ||
	    (alloc_raw && perf_evsel__alloc_prev_raw_counts(evsel, ncpus, nthreads) < 0))
		return -ENOMEM;

	return 0;
}

int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw)
{
	struct perf_evsel *evsel;

	evlist__for_each_entry(evlist, evsel) {
		if (perf_evsel__alloc_stats(evsel, alloc_raw))
			goto out_free;
	}

	return 0;

out_free:
	perf_evlist__free_stats(evlist);
	return -1;
}

void perf_evlist__free_stats(struct perf_evlist *evlist)
{
	struct perf_evsel *evsel;

	evlist__for_each_entry(evlist, evsel) {
		perf_evsel__free_stat_priv(evsel);
		perf_evsel__free_counts(evsel);
		perf_evsel__free_prev_raw_counts(evsel);
	}
}

void perf_evlist__reset_stats(struct perf_evlist *evlist)
{
	struct perf_evsel *evsel;

	evlist__for_each_entry(evlist, evsel) {
		perf_evsel__reset_stat_priv(evsel);
		perf_evsel__reset_counts(evsel);
	}
}

static void zero_per_pkg(struct perf_evsel *counter)
{
	if (counter->per_pkg_mask)
		memset(counter->per_pkg_mask, 0, MAX_NR_CPUS);
}

static int check_per_pkg(struct perf_evsel *counter,
			 struct perf_counts_values *vals, int cpu, bool *skip)
{
	unsigned long *mask = counter->per_pkg_mask;
	struct cpu_map *cpus = perf_evsel__cpus(counter);
	int s;

	*skip = false;

	if (!counter->per_pkg)
		return 0;

	if (cpu_map__empty(cpus))
		return 0;

	if (!mask) {
		mask = zalloc(MAX_NR_CPUS);
		if (!mask)
			return -ENOMEM;

		counter->per_pkg_mask = mask;
	}

	/*
	 * we do not consider an event that has not run as a good
	 * instance to mark a package as used (skip=1). Otherwise
	 * we may run into a situation where the first CPU in a package
	 * is not running anything, yet the second is, and this function
	 * would mark the package as used after the first CPU and would
	 * not read the values from the second CPU.
	 */
	if (!(vals->run && vals->ena))
		return 0;

	s = cpu_map__get_socket(cpus, cpu, NULL);
	if (s < 0)
		return -1;

	*skip = test_and_set_bit(s, mask) == 1;
	return 0;
}

static int
process_counter_values(struct perf_stat_config *config, struct perf_evsel *evsel,
		       int cpu, int thread,
		       struct perf_counts_values *count)
{
	struct perf_counts_values *aggr = &evsel->counts->aggr;
	static struct perf_counts_values zero;
	bool skip = false;

	if (check_per_pkg(evsel, count, cpu, &skip)) {
		pr_err("failed to read per-pkg counter\n");
		return -1;
	}

	if (skip)
		count = &zero;

	switch (config->aggr_mode) {
	case AGGR_THREAD:
	case AGGR_CORE:
	case AGGR_SOCKET:
	case AGGR_NONE:
		if (!evsel->snapshot)
			perf_evsel__compute_deltas(evsel, cpu, thread, count);
		perf_counts_values__scale(count, config->scale, NULL);
		if (config->aggr_mode == AGGR_NONE)
			perf_stat__update_shadow_stats(evsel, count->values, cpu);
		break;
	case AGGR_GLOBAL:
		aggr->val += count->val;
		if (config->scale) {
			aggr->ena += count->ena;
			aggr->run += count->run;
		}
	case AGGR_UNSET:
	default:
		break;
	}

	return 0;
}

static int process_counter_maps(struct perf_stat_config *config,
				struct perf_evsel *counter)
{
	int nthreads = thread_map__nr(counter->threads);
	int ncpus = perf_evsel__nr_cpus(counter);
	int cpu, thread;

	if (counter->system_wide)
		nthreads = 1;

	for (thread = 0; thread < nthreads; thread++) {
		for (cpu = 0; cpu < ncpus; cpu++) {
			if (process_counter_values(config, counter, cpu, thread,
						   perf_counts(counter->counts, cpu, thread)))
				return -1;
		}
	}

	return 0;
}

int perf_stat_process_counter(struct perf_stat_config *config,
			      struct perf_evsel *counter)
{
	struct perf_counts_values *aggr = &counter->counts->aggr;
	struct perf_stat_evsel *ps = counter->priv;
	u64 *count = counter->counts->aggr.values;
	u64 val;
	int i, ret;

	aggr->val = aggr->ena = aggr->run = 0;

	/*
	 * We calculate counter's data every interval,
	 * and the display code shows ps->res_stats
	 * avg value. We need to zero the stats for
	 * interval mode, otherwise overall avg running
	 * averages will be shown for each interval.
	 */
	if (config->interval)
		init_stats(ps->res_stats);

	if (counter->per_pkg)
		zero_per_pkg(counter);

	ret = process_counter_maps(config, counter);
	if (ret)
		return ret;

	if (config->aggr_mode != AGGR_GLOBAL)
		return 0;

	if (!counter->snapshot)
		perf_evsel__compute_deltas(counter, -1, -1, aggr);
	perf_counts_values__scale(aggr, config->scale, &counter->counts->scaled);

	for (i = 0; i < 3; i++)
		update_stats(&ps->res_stats[i], count[i]);

	if (verbose > 0) {
		fprintf(config->output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
			perf_evsel__name(counter), count[0], count[1], count[2]);
	}

	/*
	 * Save the full runtime - to allow normalization during printout:
	 */
	val = counter->scale * *count;
	perf_stat__update_shadow_stats(counter, &val, 0);

	return 0;
}

int perf_event__process_stat_event(struct perf_tool *tool __maybe_unused,
				   union perf_event *event,
				   struct perf_session *session)
{
	struct perf_counts_values count;
	struct stat_event *st = &event->stat;
	struct perf_evsel *counter;

	count.val = st->val;
	count.ena = st->ena;
	count.run = st->run;

	counter = perf_evlist__id2evsel(session->evlist, st->id);
	if (!counter) {
		pr_err("Failed to resolve counter for stat event.\n");
		return -EINVAL;
	}

	*perf_counts(counter->counts, st->cpu, st->thread) = count;
	counter->supported = true;
	return 0;
}

size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp)
{
	struct stat_event *st = (struct stat_event *) event;
	size_t ret;

	ret  = fprintf(fp, "\n... id %" PRIu64 ", cpu %d, thread %d\n",
		       st->id, st->cpu, st->thread);
	ret += fprintf(fp, "... value %" PRIu64 ", enabled %" PRIu64 ", running %" PRIu64 "\n",
		       st->val, st->ena, st->run);

	return ret;
}

size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp)
{
	struct stat_round_event *rd = (struct stat_round_event *)event;
	size_t ret;

	ret = fprintf(fp, "\n... time %" PRIu64 ", type %s\n", rd->time,
		      rd->type == PERF_STAT_ROUND_TYPE__FINAL ? "FINAL" : "INTERVAL");

	return ret;
}

size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp)
{
	struct perf_stat_config sc;
	size_t ret;

	perf_event__read_stat_config(&sc, &event->stat_config);

	ret  = fprintf(fp, "\n");
	ret += fprintf(fp, "... aggr_mode %d\n", sc.aggr_mode);
	ret += fprintf(fp, "... scale     %d\n", sc.scale);
	ret += fprintf(fp, "... interval  %u\n", sc.interval);

	return ret;
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
a43783ae	2	#include <errno.h>
fd20e811	3	#include <inttypes.h>
0007ecea	4	#include <math.h>
0007ecea	5	#include "stat.h"
24e34f68	6	#include "evlist.h"
e2f56da1	7	#include "evsel.h"
24e34f68	8	#include "thread_map.h"
0007ecea XG	9
	10	void update_stats(struct stats *stats, u64 val)
	11	{
	12	double delta;
	13
	14	stats->n++;
	15	delta = val - stats->mean;
	16	stats->mean += delta / stats->n;
	17	stats->M2 += delta*(val - stats->mean);
ffe4f3c0 DA	18
	19	if (val > stats->max)
	20	stats->max = val;
	21
	22	if (val < stats->min)
	23	stats->min = val;
0007ecea XG	24	}
	25
	26	double avg_stats(struct stats *stats)
	27	{
	28	return stats->mean;
	29	}
	30
	31	/*
	32	* http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
	33	*
	34	* (\Sum n_i^2) - ((\Sum n_i)^2)/n
	35	* s^2 = -------------------------------
	36	* n - 1
	37	*
	38	* http://en.wikipedia.org/wiki/Stddev
	39	*
	40	* The std dev of the mean is related to the std dev by:
	41	*
	42	* s
	43	* s_mean = -------
	44	* sqrt(n)
	45	*
	46	*/
	47	double stddev_stats(struct stats *stats)
	48	{
	49	double variance, variance_mean;
	50
45528f7c	51	if (stats->n < 2)
0007ecea XG	52	return 0.0;
	53
	54	variance = stats->M2 / (stats->n - 1);
	55	variance_mean = variance / stats->n;
	56
	57	return sqrt(variance_mean);
	58	}
	59
	60	double rel_stddev_stats(double stddev, double avg)
	61	{
	62	double pct = 0.0;
	63
	64	if (avg)
	65	pct = 100.0 * stddev/avg;
	66
	67	return pct;
	68	}
e2f56da1 JO	69
	70	bool __perf_evsel_stat__is(struct perf_evsel *evsel,
	71	enum perf_stat_evsel_id id)
	72	{
581cc8a2	73	struct perf_stat_evsel *ps = evsel->priv;
e2f56da1 JO	74
	75	return ps->id == id;
	76	}
	77
	78	#define ID(id, name) [PERF_STAT_EVSEL_ID__##id] = #name
	79	static const char *id_str[PERF_STAT_EVSEL_ID__MAX] = {
4c358d5c JO	80	ID(NONE, x),
	81	ID(CYCLES_IN_TX, cpu/cycles-t/),
	82	ID(TRANSACTION_START, cpu/tx-start/),
	83	ID(ELISION_START, cpu/el-start/),
	84	ID(CYCLES_IN_TX_CP, cpu/cycles-ct/),
239bd47f AK	85	ID(TOPDOWN_TOTAL_SLOTS, topdown-total-slots),
	86	ID(TOPDOWN_SLOTS_ISSUED, topdown-slots-issued),
	87	ID(TOPDOWN_SLOTS_RETIRED, topdown-slots-retired),
	88	ID(TOPDOWN_FETCH_BUBBLES, topdown-fetch-bubbles),
	89	ID(TOPDOWN_RECOVERY_BUBBLES, topdown-recovery-bubbles),
daefd0bc KL	90	ID(SMI_NUM, msr/smi/),
daefd0bc KL	91	ID(APERF, msr/aperf/),
e2f56da1 JO	92	};
	93	#undef ID
	94
	95	void perf_stat_evsel_id_init(struct perf_evsel *evsel)
	96	{
581cc8a2	97	struct perf_stat_evsel *ps = evsel->priv;
e2f56da1 JO	98	int i;
	99
	100	/* ps->id is 0 hence PERF_STAT_EVSEL_ID__NONE by default */
	101
	102	for (i = 0; i < PERF_STAT_EVSEL_ID__MAX; i++) {
	103	if (!strcmp(perf_evsel__name(evsel), id_str[i])) {
	104	ps->id = i;
	105	break;
	106	}
	107	}
	108	}
a9a3a4d9	109
86a2cf31	110	static void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
9689edfa JO	111	{
9689edfa JO	112	int i;
581cc8a2	113	struct perf_stat_evsel *ps = evsel->priv;
9689edfa JO	114
	115	for (i = 0; i < 3; i++)
	116	init_stats(&ps->res_stats[i]);
	117
	118	perf_stat_evsel_id_init(evsel);
	119	}
	120
86a2cf31	121	static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
9689edfa	122	{
581cc8a2	123	evsel->priv = zalloc(sizeof(struct perf_stat_evsel));
9689edfa JO	124	if (evsel->priv == NULL)
	125	return -ENOMEM;
	126	perf_evsel__reset_stat_priv(evsel);
	127	return 0;
	128	}
	129
86a2cf31	130	static void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
9689edfa	131	{
f7794d52 JO	132	struct perf_stat_evsel *ps = evsel->priv;
	133
	134	if (ps)
	135	free(ps->group_data);
9689edfa JO	136	zfree(&evsel->priv);
9689edfa JO	137	}
a939512d	138
86a2cf31 JO	139	static int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel,
86a2cf31 JO	140	int ncpus, int nthreads)
a939512d JO	141	{
	142	struct perf_counts *counts;
	143
	144	counts = perf_counts__new(ncpus, nthreads);
	145	if (counts)
	146	evsel->prev_raw_counts = counts;
	147
	148	return counts ? 0 : -ENOMEM;
	149	}
	150
86a2cf31	151	static void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel)
a939512d JO	152	{
	153	perf_counts__delete(evsel->prev_raw_counts);
	154	evsel->prev_raw_counts = NULL;
	155	}
24e34f68	156
86a2cf31	157	static int perf_evsel__alloc_stats(struct perf_evsel *evsel, bool alloc_raw)
a7d0a102 JO	158	{
	159	int ncpus = perf_evsel__nr_cpus(evsel);
	160	int nthreads = thread_map__nr(evsel->threads);
	161
	162	if (perf_evsel__alloc_stat_priv(evsel) < 0 \|\|
	163	perf_evsel__alloc_counts(evsel, ncpus, nthreads) < 0 \|\|
	164	(alloc_raw && perf_evsel__alloc_prev_raw_counts(evsel, ncpus, nthreads) < 0))
	165	return -ENOMEM;
	166
	167	return 0;
	168	}
	169
24e34f68 JO	170	int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw)
	171	{
	172	struct perf_evsel *evsel;
24e34f68	173
e5cadb93	174	evlist__for_each_entry(evlist, evsel) {
a7d0a102	175	if (perf_evsel__alloc_stats(evsel, alloc_raw))
24e34f68 JO	176	goto out_free;
	177	}
	178
	179	return 0;
	180
	181	out_free:
	182	perf_evlist__free_stats(evlist);
	183	return -1;
	184	}
	185
	186	void perf_evlist__free_stats(struct perf_evlist *evlist)
	187	{
	188	struct perf_evsel *evsel;
	189
e5cadb93	190	evlist__for_each_entry(evlist, evsel) {
24e34f68 JO	191	perf_evsel__free_stat_priv(evsel);
	192	perf_evsel__free_counts(evsel);
	193	perf_evsel__free_prev_raw_counts(evsel);
	194	}
	195	}
	196
	197	void perf_evlist__reset_stats(struct perf_evlist *evlist)
	198	{
	199	struct perf_evsel *evsel;
	200
e5cadb93	201	evlist__for_each_entry(evlist, evsel) {
24e34f68 JO	202	perf_evsel__reset_stat_priv(evsel);
	203	perf_evsel__reset_counts(evsel);
	204	}
	205	}
f80010eb JO	206
	207	static void zero_per_pkg(struct perf_evsel *counter)
	208	{
	209	if (counter->per_pkg_mask)
	210	memset(counter->per_pkg_mask, 0, MAX_NR_CPUS);
	211	}
	212
02d8dabc SE	213	static int check_per_pkg(struct perf_evsel *counter,
02d8dabc SE	214	struct perf_counts_values vals, int cpu, bool skip)
f80010eb JO	215	{
	216	unsigned long *mask = counter->per_pkg_mask;
	217	struct cpu_map *cpus = perf_evsel__cpus(counter);
	218	int s;
	219
	220	*skip = false;
	221
	222	if (!counter->per_pkg)
	223	return 0;
	224
	225	if (cpu_map__empty(cpus))
	226	return 0;
	227
	228	if (!mask) {
	229	mask = zalloc(MAX_NR_CPUS);
	230	if (!mask)
	231	return -ENOMEM;
	232
	233	counter->per_pkg_mask = mask;
	234	}
	235
02d8dabc SE	236	/*
	237	* we do not consider an event that has not run as a good
	238	* instance to mark a package as used (skip=1). Otherwise
	239	* we may run into a situation where the first CPU in a package
	240	* is not running anything, yet the second is, and this function
	241	* would mark the package as used after the first CPU and would
	242	* not read the values from the second CPU.
	243	*/
	244	if (!(vals->run && vals->ena))
	245	return 0;
	246
1fe7a300	247	s = cpu_map__get_socket(cpus, cpu, NULL);
f80010eb JO	248	if (s < 0)
	249	return -1;
	250
	251	*skip = test_and_set_bit(s, mask) == 1;
	252	return 0;
	253	}
	254
	255	static int
	256	process_counter_values(struct perf_stat_config config, struct perf_evsel evsel,
	257	int cpu, int thread,
	258	struct perf_counts_values *count)
	259	{
	260	struct perf_counts_values *aggr = &evsel->counts->aggr;
	261	static struct perf_counts_values zero;
	262	bool skip = false;
	263
02d8dabc	264	if (check_per_pkg(evsel, count, cpu, &skip)) {
f80010eb JO	265	pr_err("failed to read per-pkg counter\n");
	266	return -1;
	267	}
	268
	269	if (skip)
	270	count = &zero;
	271
	272	switch (config->aggr_mode) {
	273	case AGGR_THREAD:
	274	case AGGR_CORE:
	275	case AGGR_SOCKET:
	276	case AGGR_NONE:
	277	if (!evsel->snapshot)
	278	perf_evsel__compute_deltas(evsel, cpu, thread, count);
	279	perf_counts_values__scale(count, config->scale, NULL);
	280	if (config->aggr_mode == AGGR_NONE)
	281	perf_stat__update_shadow_stats(evsel, count->values, cpu);
	282	break;
	283	case AGGR_GLOBAL:
	284	aggr->val += count->val;
	285	if (config->scale) {
	286	aggr->ena += count->ena;
	287	aggr->run += count->run;
	288	}
208df99e	289	case AGGR_UNSET:
f80010eb JO	290	default:
	291	break;
	292	}
	293
	294	return 0;
	295	}
	296
	297	static int process_counter_maps(struct perf_stat_config *config,
	298	struct perf_evsel *counter)
	299	{
	300	int nthreads = thread_map__nr(counter->threads);
	301	int ncpus = perf_evsel__nr_cpus(counter);
	302	int cpu, thread;
	303
	304	if (counter->system_wide)
	305	nthreads = 1;
	306
	307	for (thread = 0; thread < nthreads; thread++) {
	308	for (cpu = 0; cpu < ncpus; cpu++) {
	309	if (process_counter_values(config, counter, cpu, thread,
	310	perf_counts(counter->counts, cpu, thread)))
	311	return -1;
	312	}
	313	}
	314
	315	return 0;
	316	}
	317
	318	int perf_stat_process_counter(struct perf_stat_config *config,
	319	struct perf_evsel *counter)
	320	{
	321	struct perf_counts_values *aggr = &counter->counts->aggr;
581cc8a2	322	struct perf_stat_evsel *ps = counter->priv;
f80010eb	323	u64 *count = counter->counts->aggr.values;
f340c5fc	324	u64 val;
f80010eb JO	325	int i, ret;
	326
	327	aggr->val = aggr->ena = aggr->run = 0;
f80010eb	328
51fd2df1 JO	329	/*
	330	* We calculate counter's data every interval,
	331	* and the display code shows ps->res_stats
	332	* avg value. We need to zero the stats for
	333	* interval mode, otherwise overall avg running
	334	* averages will be shown for each interval.
	335	*/
	336	if (config->interval)
	337	init_stats(ps->res_stats);
	338
f80010eb JO	339	if (counter->per_pkg)
	340	zero_per_pkg(counter);
	341
	342	ret = process_counter_maps(config, counter);
	343	if (ret)
	344	return ret;
	345
	346	if (config->aggr_mode != AGGR_GLOBAL)
	347	return 0;
	348
	349	if (!counter->snapshot)
	350	perf_evsel__compute_deltas(counter, -1, -1, aggr);
	351	perf_counts_values__scale(aggr, config->scale, &counter->counts->scaled);
	352
	353	for (i = 0; i < 3; i++)
	354	update_stats(&ps->res_stats[i], count[i]);
	355
bb963e16	356	if (verbose > 0) {
f80010eb JO	357	fprintf(config->output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
	358	perf_evsel__name(counter), count[0], count[1], count[2]);
	359	}
	360
	361	/*
	362	* Save the full runtime - to allow normalization during printout:
	363	*/
f340c5fc AK	364	val = counter->scale * *count;
f340c5fc AK	365	perf_stat__update_shadow_stats(counter, &val, 0);
f80010eb JO	366
	367	return 0;
	368	}
0ea0e355 JO	369
	370	int perf_event__process_stat_event(struct perf_tool *tool __maybe_unused,
	371	union perf_event *event,
	372	struct perf_session *session)
	373	{
	374	struct perf_counts_values count;
	375	struct stat_event *st = &event->stat;
	376	struct perf_evsel *counter;
	377
	378	count.val = st->val;
	379	count.ena = st->ena;
	380	count.run = st->run;
	381
	382	counter = perf_evlist__id2evsel(session->evlist, st->id);
	383	if (!counter) {
	384	pr_err("Failed to resolve counter for stat event.\n");
	385	return -EINVAL;
	386	}
	387
	388	*perf_counts(counter->counts, st->cpu, st->thread) = count;
	389	counter->supported = true;
	390	return 0;
	391	}
e08a4564 JO	392
	393	size_t perf_event__fprintf_stat(union perf_event event, FILE fp)
	394	{
	395	struct stat_event st = (struct stat_event ) event;
	396	size_t ret;
	397
	398	ret = fprintf(fp, "\n... id %" PRIu64 ", cpu %d, thread %d\n",
	399	st->id, st->cpu, st->thread);
	400	ret += fprintf(fp, "... value %" PRIu64 ", enabled %" PRIu64 ", running %" PRIu64 "\n",
	401	st->val, st->ena, st->run);
	402
	403	return ret;
	404	}
	405
	406	size_t perf_event__fprintf_stat_round(union perf_event event, FILE fp)
	407	{
	408	struct stat_round_event rd = (struct stat_round_event )event;
	409	size_t ret;
	410
	411	ret = fprintf(fp, "\n... time %" PRIu64 ", type %s\n", rd->time,
	412	rd->type == PERF_STAT_ROUND_TYPE__FINAL ? "FINAL" : "INTERVAL");
	413
	414	return ret;
	415	}
	416
	417	size_t perf_event__fprintf_stat_config(union perf_event event, FILE fp)
	418	{
	419	struct perf_stat_config sc;
	420	size_t ret;
	421
	422	perf_event__read_stat_config(&sc, &event->stat_config);
	423
	424	ret = fprintf(fp, "\n");
	425	ret += fprintf(fp, "... aggr_mode %d\n", sc.aggr_mode);
	426	ret += fprintf(fp, "... scale %d\n", sc.scale);
	427	ret += fprintf(fp, "... interval %u\n", sc.interval);
	428
	429	return ret;
	430	}