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

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