xref: /openbmc/linux/tools/perf/util/stat-display.c (revision cc19db8b) 
1 #include <stdlib.h>
2 #include <stdio.h>
3 #include <inttypes.h>
4 #include <linux/string.h>
5 #include <linux/time64.h>
6 #include <math.h>
7 #include <perf/cpumap.h>
8 #include "color.h"
9 #include "counts.h"
10 #include "evlist.h"
11 #include "evsel.h"
12 #include "stat.h"
13 #include "top.h"
14 #include "thread_map.h"
15 #include "cpumap.h"
16 #include "string2.h"
17 #include <linux/ctype.h>
18 #include "cgroup.h"
19 #include <api/fs/fs.h>
20 #include "util.h"
21 #include "iostat.h"
22 #include "pmu-hybrid.h"
23 #include "evlist-hybrid.h"
24 
25 #define CNTR_NOT_SUPPORTED	"<not supported>"
26 #define CNTR_NOT_COUNTED	"<not counted>"
27 
28 static void print_running(struct perf_stat_config *config,
29 			  u64 run, u64 ena)
30 {
31 	if (config->csv_output) {
32 		fprintf(config->output, "%s%" PRIu64 "%s%.2f",
33 					config->csv_sep,
34 					run,
35 					config->csv_sep,
36 					ena ? 100.0 * run / ena : 100.0);
37 	} else if (run != ena) {
38 		fprintf(config->output, "  (%.2f%%)", 100.0 * run / ena);
39 	}
40 }
41 
42 static void print_noise_pct(struct perf_stat_config *config,
43 			    double total, double avg)
44 {
45 	double pct = rel_stddev_stats(total, avg);
46 
47 	if (config->csv_output)
48 		fprintf(config->output, "%s%.2f%%", config->csv_sep, pct);
49 	else if (pct)
50 		fprintf(config->output, "  ( +-%6.2f%% )", pct);
51 }
52 
53 static void print_noise(struct perf_stat_config *config,
54 			struct evsel *evsel, double avg)
55 {
56 	struct perf_stat_evsel *ps;
57 
58 	if (config->run_count == 1)
59 		return;
60 
61 	ps = evsel->stats;
62 	print_noise_pct(config, stddev_stats(&ps->res_stats[0]), avg);
63 }
64 
65 static void print_cgroup(struct perf_stat_config *config, struct evsel *evsel)
66 {
67 	if (nr_cgroups) {
68 		const char *cgrp_name = evsel->cgrp ? evsel->cgrp->name  : "";
69 		fprintf(config->output, "%s%s", config->csv_sep, cgrp_name);
70 	}
71 }
72 
73 
74 static void aggr_printout(struct perf_stat_config *config,
75 			  struct evsel *evsel, struct aggr_cpu_id id, int nr)
76 {
77 	switch (config->aggr_mode) {
78 	case AGGR_CORE:
79 		fprintf(config->output, "S%d-D%d-C%*d%s%*d%s",
80 			id.socket,
81 			id.die,
82 			config->csv_output ? 0 : -8,
83 			id.core,
84 			config->csv_sep,
85 			config->csv_output ? 0 : 4,
86 			nr,
87 			config->csv_sep);
88 		break;
89 	case AGGR_DIE:
90 		fprintf(config->output, "S%d-D%*d%s%*d%s",
91 			id.socket,
92 			config->csv_output ? 0 : -8,
93 			id.die,
94 			config->csv_sep,
95 			config->csv_output ? 0 : 4,
96 			nr,
97 			config->csv_sep);
98 		break;
99 	case AGGR_SOCKET:
100 		fprintf(config->output, "S%*d%s%*d%s",
101 			config->csv_output ? 0 : -5,
102 			id.socket,
103 			config->csv_sep,
104 			config->csv_output ? 0 : 4,
105 			nr,
106 			config->csv_sep);
107 			break;
108 	case AGGR_NODE:
109 		fprintf(config->output, "N%*d%s%*d%s",
110 			config->csv_output ? 0 : -5,
111 			id.node,
112 			config->csv_sep,
113 			config->csv_output ? 0 : 4,
114 			nr,
115 			config->csv_sep);
116 			break;
117 	case AGGR_NONE:
118 		if (evsel->percore && !config->percore_show_thread) {
119 			fprintf(config->output, "S%d-D%d-C%*d%s",
120 				id.socket,
121 				id.die,
122 				config->csv_output ? 0 : -3,
123 				id.core, config->csv_sep);
124 		} else if (id.cpu.cpu > -1) {
125 			fprintf(config->output, "CPU%*d%s",
126 				config->csv_output ? 0 : -7,
127 				id.cpu.cpu, config->csv_sep);
128 		}
129 		break;
130 	case AGGR_THREAD:
131 		fprintf(config->output, "%*s-%*d%s",
132 			config->csv_output ? 0 : 16,
133 			perf_thread_map__comm(evsel->core.threads, id.thread),
134 			config->csv_output ? 0 : -8,
135 			perf_thread_map__pid(evsel->core.threads, id.thread),
136 			config->csv_sep);
137 		break;
138 	case AGGR_GLOBAL:
139 	case AGGR_UNSET:
140 	default:
141 		break;
142 	}
143 }
144 
145 struct outstate {
146 	FILE *fh;
147 	bool newline;
148 	const char *prefix;
149 	int  nfields;
150 	int  nr;
151 	struct aggr_cpu_id id;
152 	struct evsel *evsel;
153 };
154 
155 #define METRIC_LEN  35
156 
157 static void new_line_std(struct perf_stat_config *config __maybe_unused,
158 			 void *ctx)
159 {
160 	struct outstate *os = ctx;
161 
162 	os->newline = true;
163 }
164 
165 static void do_new_line_std(struct perf_stat_config *config,
166 			    struct outstate *os)
167 {
168 	fputc('\n', os->fh);
169 	fputs(os->prefix, os->fh);
170 	aggr_printout(config, os->evsel, os->id, os->nr);
171 	if (config->aggr_mode == AGGR_NONE)
172 		fprintf(os->fh, "        ");
173 	fprintf(os->fh, "                                                 ");
174 }
175 
176 static void print_metric_std(struct perf_stat_config *config,
177 			     void *ctx, const char *color, const char *fmt,
178 			     const char *unit, double val)
179 {
180 	struct outstate *os = ctx;
181 	FILE *out = os->fh;
182 	int n;
183 	bool newline = os->newline;
184 
185 	os->newline = false;
186 
187 	if (unit == NULL || fmt == NULL) {
188 		fprintf(out, "%-*s", METRIC_LEN, "");
189 		return;
190 	}
191 
192 	if (newline)
193 		do_new_line_std(config, os);
194 
195 	n = fprintf(out, " # ");
196 	if (color)
197 		n += color_fprintf(out, color, fmt, val);
198 	else
199 		n += fprintf(out, fmt, val);
200 	fprintf(out, " %-*s", METRIC_LEN - n - 1, unit);
201 }
202 
203 static void new_line_csv(struct perf_stat_config *config, void *ctx)
204 {
205 	struct outstate *os = ctx;
206 	int i;
207 
208 	fputc('\n', os->fh);
209 	if (os->prefix)
210 		fprintf(os->fh, "%s%s", os->prefix, config->csv_sep);
211 	aggr_printout(config, os->evsel, os->id, os->nr);
212 	for (i = 0; i < os->nfields; i++)
213 		fputs(config->csv_sep, os->fh);
214 }
215 
216 static void print_metric_csv(struct perf_stat_config *config __maybe_unused,
217 			     void *ctx,
218 			     const char *color __maybe_unused,
219 			     const char *fmt, const char *unit, double val)
220 {
221 	struct outstate *os = ctx;
222 	FILE *out = os->fh;
223 	char buf[64], *vals, *ends;
224 
225 	if (unit == NULL || fmt == NULL) {
226 		fprintf(out, "%s%s", config->csv_sep, config->csv_sep);
227 		return;
228 	}
229 	snprintf(buf, sizeof(buf), fmt, val);
230 	ends = vals = skip_spaces(buf);
231 	while (isdigit(*ends) || *ends == '.')
232 		ends++;
233 	*ends = 0;
234 	fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, skip_spaces(unit));
235 }
236 
237 /* Filter out some columns that don't work well in metrics only mode */
238 
239 static bool valid_only_metric(const char *unit)
240 {
241 	if (!unit)
242 		return false;
243 	if (strstr(unit, "/sec") ||
244 	    strstr(unit, "CPUs utilized"))
245 		return false;
246 	return true;
247 }
248 
249 static const char *fixunit(char *buf, struct evsel *evsel,
250 			   const char *unit)
251 {
252 	if (!strncmp(unit, "of all", 6)) {
253 		snprintf(buf, 1024, "%s %s", evsel__name(evsel),
254 			 unit);
255 		return buf;
256 	}
257 	return unit;
258 }
259 
260 static void print_metric_only(struct perf_stat_config *config,
261 			      void *ctx, const char *color, const char *fmt,
262 			      const char *unit, double val)
263 {
264 	struct outstate *os = ctx;
265 	FILE *out = os->fh;
266 	char buf[1024], str[1024];
267 	unsigned mlen = config->metric_only_len;
268 
269 	if (!valid_only_metric(unit))
270 		return;
271 	unit = fixunit(buf, os->evsel, unit);
272 	if (mlen < strlen(unit))
273 		mlen = strlen(unit) + 1;
274 
275 	if (color)
276 		mlen += strlen(color) + sizeof(PERF_COLOR_RESET) - 1;
277 
278 	color_snprintf(str, sizeof(str), color ?: "", fmt, val);
279 	fprintf(out, "%*s ", mlen, str);
280 }
281 
282 static void print_metric_only_csv(struct perf_stat_config *config __maybe_unused,
283 				  void *ctx, const char *color __maybe_unused,
284 				  const char *fmt,
285 				  const char *unit, double val)
286 {
287 	struct outstate *os = ctx;
288 	FILE *out = os->fh;
289 	char buf[64], *vals, *ends;
290 	char tbuf[1024];
291 
292 	if (!valid_only_metric(unit))
293 		return;
294 	unit = fixunit(tbuf, os->evsel, unit);
295 	snprintf(buf, sizeof buf, fmt, val);
296 	ends = vals = skip_spaces(buf);
297 	while (isdigit(*ends) || *ends == '.')
298 		ends++;
299 	*ends = 0;
300 	fprintf(out, "%s%s", vals, config->csv_sep);
301 }
302 
303 static void new_line_metric(struct perf_stat_config *config __maybe_unused,
304 			    void *ctx __maybe_unused)
305 {
306 }
307 
308 static void print_metric_header(struct perf_stat_config *config,
309 				void *ctx, const char *color __maybe_unused,
310 				const char *fmt __maybe_unused,
311 				const char *unit, double val __maybe_unused)
312 {
313 	struct outstate *os = ctx;
314 	char tbuf[1024];
315 
316 	/* In case of iostat, print metric header for first root port only */
317 	if (config->iostat_run &&
318 	    os->evsel->priv != os->evsel->evlist->selected->priv)
319 		return;
320 
321 	if (!valid_only_metric(unit))
322 		return;
323 	unit = fixunit(tbuf, os->evsel, unit);
324 	if (config->csv_output)
325 		fprintf(os->fh, "%s%s", unit, config->csv_sep);
326 	else
327 		fprintf(os->fh, "%*s ", config->metric_only_len, unit);
328 }
329 
330 static int first_shadow_cpu_map_idx(struct perf_stat_config *config,
331 				struct evsel *evsel, const struct aggr_cpu_id *id)
332 {
333 	struct perf_cpu_map *cpus = evsel__cpus(evsel);
334 	struct perf_cpu cpu;
335 	int idx;
336 
337 	if (config->aggr_mode == AGGR_NONE)
338 		return perf_cpu_map__idx(cpus, id->cpu);
339 
340 	if (!config->aggr_get_id)
341 		return 0;
342 
343 	perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
344 		struct aggr_cpu_id cpu_id = config->aggr_get_id(config, cpu);
345 
346 		if (aggr_cpu_id__equal(&cpu_id, id))
347 			return idx;
348 	}
349 	return 0;
350 }
351 
352 static void abs_printout(struct perf_stat_config *config,
353 			 struct aggr_cpu_id id, int nr, struct evsel *evsel, double avg)
354 {
355 	FILE *output = config->output;
356 	double sc =  evsel->scale;
357 	const char *fmt;
358 
359 	if (config->csv_output) {
360 		fmt = floor(sc) != sc ?  "%.2f%s" : "%.0f%s";
361 	} else {
362 		if (config->big_num)
363 			fmt = floor(sc) != sc ? "%'18.2f%s" : "%'18.0f%s";
364 		else
365 			fmt = floor(sc) != sc ? "%18.2f%s" : "%18.0f%s";
366 	}
367 
368 	aggr_printout(config, evsel, id, nr);
369 
370 	fprintf(output, fmt, avg, config->csv_sep);
371 
372 	if (evsel->unit)
373 		fprintf(output, "%-*s%s",
374 			config->csv_output ? 0 : config->unit_width,
375 			evsel->unit, config->csv_sep);
376 
377 	fprintf(output, "%-*s", config->csv_output ? 0 : 25, evsel__name(evsel));
378 
379 	print_cgroup(config, evsel);
380 }
381 
382 static bool is_mixed_hw_group(struct evsel *counter)
383 {
384 	struct evlist *evlist = counter->evlist;
385 	u32 pmu_type = counter->core.attr.type;
386 	struct evsel *pos;
387 
388 	if (counter->core.nr_members < 2)
389 		return false;
390 
391 	evlist__for_each_entry(evlist, pos) {
392 		/* software events can be part of any hardware group */
393 		if (pos->core.attr.type == PERF_TYPE_SOFTWARE)
394 			continue;
395 		if (pmu_type == PERF_TYPE_SOFTWARE) {
396 			pmu_type = pos->core.attr.type;
397 			continue;
398 		}
399 		if (pmu_type != pos->core.attr.type)
400 			return true;
401 	}
402 
403 	return false;
404 }
405 
406 static void printout(struct perf_stat_config *config, struct aggr_cpu_id id, int nr,
407 		     struct evsel *counter, double uval,
408 		     char *prefix, u64 run, u64 ena, double noise,
409 		     struct runtime_stat *st)
410 {
411 	struct perf_stat_output_ctx out;
412 	struct outstate os = {
413 		.fh = config->output,
414 		.prefix = prefix ? prefix : "",
415 		.id = id,
416 		.nr = nr,
417 		.evsel = counter,
418 	};
419 	print_metric_t pm = print_metric_std;
420 	new_line_t nl;
421 
422 	if (config->metric_only) {
423 		nl = new_line_metric;
424 		if (config->csv_output)
425 			pm = print_metric_only_csv;
426 		else
427 			pm = print_metric_only;
428 	} else
429 		nl = new_line_std;
430 
431 	if (config->csv_output && !config->metric_only) {
432 		static int aggr_fields[] = {
433 			[AGGR_GLOBAL] = 0,
434 			[AGGR_THREAD] = 1,
435 			[AGGR_NONE] = 1,
436 			[AGGR_SOCKET] = 2,
437 			[AGGR_DIE] = 2,
438 			[AGGR_CORE] = 2,
439 		};
440 
441 		pm = print_metric_csv;
442 		nl = new_line_csv;
443 		os.nfields = 3;
444 		os.nfields += aggr_fields[config->aggr_mode];
445 		if (counter->cgrp)
446 			os.nfields++;
447 	}
448 
449 	if (!config->no_csv_summary && config->csv_output &&
450 	    config->summary && !config->interval) {
451 		fprintf(config->output, "%16s%s", "summary", config->csv_sep);
452 	}
453 
454 	if (run == 0 || ena == 0 || counter->counts->scaled == -1) {
455 		if (config->metric_only) {
456 			pm(config, &os, NULL, "", "", 0);
457 			return;
458 		}
459 		aggr_printout(config, counter, id, nr);
460 
461 		fprintf(config->output, "%*s%s",
462 			config->csv_output ? 0 : 18,
463 			counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
464 			config->csv_sep);
465 
466 		if (counter->supported) {
467 			if (!evlist__has_hybrid(counter->evlist)) {
468 				config->print_free_counters_hint = 1;
469 				if (is_mixed_hw_group(counter))
470 					config->print_mixed_hw_group_error = 1;
471 			}
472 		}
473 
474 		fprintf(config->output, "%-*s%s",
475 			config->csv_output ? 0 : config->unit_width,
476 			counter->unit, config->csv_sep);
477 
478 		fprintf(config->output, "%*s",
479 			config->csv_output ? 0 : -25, evsel__name(counter));
480 
481 		print_cgroup(config, counter);
482 
483 		if (!config->csv_output)
484 			pm(config, &os, NULL, NULL, "", 0);
485 		print_noise(config, counter, noise);
486 		print_running(config, run, ena);
487 		if (config->csv_output)
488 			pm(config, &os, NULL, NULL, "", 0);
489 		return;
490 	}
491 
492 	if (!config->metric_only)
493 		abs_printout(config, id, nr, counter, uval);
494 
495 	out.print_metric = pm;
496 	out.new_line = nl;
497 	out.ctx = &os;
498 	out.force_header = false;
499 
500 	if (config->csv_output && !config->metric_only) {
501 		print_noise(config, counter, noise);
502 		print_running(config, run, ena);
503 	}
504 
505 	perf_stat__print_shadow_stats(config, counter, uval,
506 				first_shadow_cpu_map_idx(config, counter, &id),
507 				&out, &config->metric_events, st);
508 	if (!config->csv_output && !config->metric_only) {
509 		print_noise(config, counter, noise);
510 		print_running(config, run, ena);
511 	}
512 }
513 
514 static void aggr_update_shadow(struct perf_stat_config *config,
515 			       struct evlist *evlist)
516 {
517 	int idx, s;
518 	struct perf_cpu cpu;
519 	struct aggr_cpu_id s2, id;
520 	u64 val;
521 	struct evsel *counter;
522 	struct perf_cpu_map *cpus;
523 
524 	for (s = 0; s < config->aggr_map->nr; s++) {
525 		id = config->aggr_map->map[s];
526 		evlist__for_each_entry(evlist, counter) {
527 			cpus = evsel__cpus(counter);
528 			val = 0;
529 			perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
530 				s2 = config->aggr_get_id(config, cpu);
531 				if (!aggr_cpu_id__equal(&s2, &id))
532 					continue;
533 				val += perf_counts(counter->counts, idx, 0)->val;
534 			}
535 			perf_stat__update_shadow_stats(counter, val,
536 					first_shadow_cpu_map_idx(config, counter, &id),
537 					&rt_stat);
538 		}
539 	}
540 }
541 
542 static void uniquify_event_name(struct evsel *counter)
543 {
544 	char *new_name;
545 	char *config;
546 	int ret = 0;
547 
548 	if (counter->uniquified_name || counter->use_config_name ||
549 	    !counter->pmu_name || !strncmp(counter->name, counter->pmu_name,
550 					   strlen(counter->pmu_name)))
551 		return;
552 
553 	config = strchr(counter->name, '/');
554 	if (config) {
555 		if (asprintf(&new_name,
556 			     "%s%s", counter->pmu_name, config) > 0) {
557 			free(counter->name);
558 			counter->name = new_name;
559 		}
560 	} else {
561 		if (perf_pmu__has_hybrid()) {
562 			ret = asprintf(&new_name, "%s/%s/",
563 				       counter->pmu_name, counter->name);
564 		} else {
565 			ret = asprintf(&new_name, "%s [%s]",
566 				       counter->name, counter->pmu_name);
567 		}
568 
569 		if (ret) {
570 			free(counter->name);
571 			counter->name = new_name;
572 		}
573 	}
574 
575 	counter->uniquified_name = true;
576 }
577 
578 static void collect_all_aliases(struct perf_stat_config *config, struct evsel *counter,
579 			    void (*cb)(struct perf_stat_config *config, struct evsel *counter, void *data,
580 				       bool first),
581 			    void *data)
582 {
583 	struct evlist *evlist = counter->evlist;
584 	struct evsel *alias;
585 
586 	alias = list_prepare_entry(counter, &(evlist->core.entries), core.node);
587 	list_for_each_entry_continue (alias, &evlist->core.entries, core.node) {
588 		/* Merge events with the same name, etc. but on different PMUs. */
589 		if (!strcmp(evsel__name(alias), evsel__name(counter)) &&
590 			alias->scale == counter->scale &&
591 			alias->cgrp == counter->cgrp &&
592 			!strcmp(alias->unit, counter->unit) &&
593 			evsel__is_clock(alias) == evsel__is_clock(counter) &&
594 			strcmp(alias->pmu_name, counter->pmu_name)) {
595 			alias->merged_stat = true;
596 			cb(config, alias, data, false);
597 		}
598 	}
599 }
600 
601 static bool is_uncore(struct evsel *evsel)
602 {
603 	struct perf_pmu *pmu = evsel__find_pmu(evsel);
604 
605 	return pmu && pmu->is_uncore;
606 }
607 
608 static bool hybrid_uniquify(struct evsel *evsel)
609 {
610 	return perf_pmu__has_hybrid() && !is_uncore(evsel);
611 }
612 
613 static bool collect_data(struct perf_stat_config *config, struct evsel *counter,
614 			    void (*cb)(struct perf_stat_config *config, struct evsel *counter, void *data,
615 				       bool first),
616 			    void *data)
617 {
618 	if (counter->merged_stat)
619 		return false;
620 	cb(config, counter, data, true);
621 	if (config->no_merge || hybrid_uniquify(counter))
622 		uniquify_event_name(counter);
623 	else if (counter->auto_merge_stats)
624 		collect_all_aliases(config, counter, cb, data);
625 	return true;
626 }
627 
628 struct aggr_data {
629 	u64 ena, run, val;
630 	struct aggr_cpu_id id;
631 	int nr;
632 	int cpu_map_idx;
633 };
634 
635 static void aggr_cb(struct perf_stat_config *config,
636 		    struct evsel *counter, void *data, bool first)
637 {
638 	struct aggr_data *ad = data;
639 	int idx;
640 	struct perf_cpu cpu;
641 	struct perf_cpu_map *cpus;
642 	struct aggr_cpu_id s2;
643 
644 	cpus = evsel__cpus(counter);
645 	perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
646 		struct perf_counts_values *counts;
647 
648 		s2 = config->aggr_get_id(config, cpu);
649 		if (!aggr_cpu_id__equal(&s2, &ad->id))
650 			continue;
651 		if (first)
652 			ad->nr++;
653 		counts = perf_counts(counter->counts, idx, 0);
654 		/*
655 		 * When any result is bad, make them all to give
656 		 * consistent output in interval mode.
657 		 */
658 		if (counts->ena == 0 || counts->run == 0 ||
659 		    counter->counts->scaled == -1) {
660 			ad->ena = 0;
661 			ad->run = 0;
662 			break;
663 		}
664 		ad->val += counts->val;
665 		ad->ena += counts->ena;
666 		ad->run += counts->run;
667 	}
668 }
669 
670 static void print_counter_aggrdata(struct perf_stat_config *config,
671 				   struct evsel *counter, int s,
672 				   char *prefix, bool metric_only,
673 				   bool *first, struct perf_cpu cpu)
674 {
675 	struct aggr_data ad;
676 	FILE *output = config->output;
677 	u64 ena, run, val;
678 	int nr;
679 	struct aggr_cpu_id id;
680 	double uval;
681 
682 	ad.id = id = config->aggr_map->map[s];
683 	ad.val = ad.ena = ad.run = 0;
684 	ad.nr = 0;
685 	if (!collect_data(config, counter, aggr_cb, &ad))
686 		return;
687 
688 	if (perf_pmu__has_hybrid() && ad.ena == 0)
689 		return;
690 
691 	nr = ad.nr;
692 	ena = ad.ena;
693 	run = ad.run;
694 	val = ad.val;
695 	if (*first && metric_only) {
696 		*first = false;
697 		aggr_printout(config, counter, id, nr);
698 	}
699 	if (prefix && !metric_only)
700 		fprintf(output, "%s", prefix);
701 
702 	uval = val * counter->scale;
703 	if (cpu.cpu != -1)
704 		id = aggr_cpu_id__cpu(cpu, /*data=*/NULL);
705 
706 	printout(config, id, nr, counter, uval,
707 		 prefix, run, ena, 1.0, &rt_stat);
708 	if (!metric_only)
709 		fputc('\n', output);
710 }
711 
712 static void print_aggr(struct perf_stat_config *config,
713 		       struct evlist *evlist,
714 		       char *prefix)
715 {
716 	bool metric_only = config->metric_only;
717 	FILE *output = config->output;
718 	struct evsel *counter;
719 	int s;
720 	bool first;
721 
722 	if (!config->aggr_map || !config->aggr_get_id)
723 		return;
724 
725 	aggr_update_shadow(config, evlist);
726 
727 	/*
728 	 * With metric_only everything is on a single line.
729 	 * Without each counter has its own line.
730 	 */
731 	for (s = 0; s < config->aggr_map->nr; s++) {
732 		if (prefix && metric_only)
733 			fprintf(output, "%s", prefix);
734 
735 		first = true;
736 		evlist__for_each_entry(evlist, counter) {
737 			print_counter_aggrdata(config, counter, s,
738 					prefix, metric_only,
739 					&first, (struct perf_cpu){ .cpu = -1 });
740 		}
741 		if (metric_only)
742 			fputc('\n', output);
743 	}
744 }
745 
746 static int cmp_val(const void *a, const void *b)
747 {
748 	return ((struct perf_aggr_thread_value *)b)->val -
749 		((struct perf_aggr_thread_value *)a)->val;
750 }
751 
752 static struct perf_aggr_thread_value *sort_aggr_thread(
753 					struct evsel *counter,
754 					int nthreads, int ncpus,
755 					int *ret,
756 					struct target *_target)
757 {
758 	int cpu, thread, i = 0;
759 	double uval;
760 	struct perf_aggr_thread_value *buf;
761 
762 	buf = calloc(nthreads, sizeof(struct perf_aggr_thread_value));
763 	if (!buf)
764 		return NULL;
765 
766 	for (thread = 0; thread < nthreads; thread++) {
767 		u64 ena = 0, run = 0, val = 0;
768 
769 		for (cpu = 0; cpu < ncpus; cpu++) {
770 			val += perf_counts(counter->counts, cpu, thread)->val;
771 			ena += perf_counts(counter->counts, cpu, thread)->ena;
772 			run += perf_counts(counter->counts, cpu, thread)->run;
773 		}
774 
775 		uval = val * counter->scale;
776 
777 		/*
778 		 * Skip value 0 when enabling --per-thread globally,
779 		 * otherwise too many 0 output.
780 		 */
781 		if (uval == 0.0 && target__has_per_thread(_target))
782 			continue;
783 
784 		buf[i].counter = counter;
785 		buf[i].id = aggr_cpu_id__empty();
786 		buf[i].id.thread = thread;
787 		buf[i].uval = uval;
788 		buf[i].val = val;
789 		buf[i].run = run;
790 		buf[i].ena = ena;
791 		i++;
792 	}
793 
794 	qsort(buf, i, sizeof(struct perf_aggr_thread_value), cmp_val);
795 
796 	if (ret)
797 		*ret = i;
798 
799 	return buf;
800 }
801 
802 static void print_aggr_thread(struct perf_stat_config *config,
803 			      struct target *_target,
804 			      struct evsel *counter, char *prefix)
805 {
806 	FILE *output = config->output;
807 	int nthreads = perf_thread_map__nr(counter->core.threads);
808 	int ncpus = perf_cpu_map__nr(counter->core.cpus);
809 	int thread, sorted_threads;
810 	struct aggr_cpu_id id;
811 	struct perf_aggr_thread_value *buf;
812 
813 	buf = sort_aggr_thread(counter, nthreads, ncpus, &sorted_threads, _target);
814 	if (!buf) {
815 		perror("cannot sort aggr thread");
816 		return;
817 	}
818 
819 	for (thread = 0; thread < sorted_threads; thread++) {
820 		if (prefix)
821 			fprintf(output, "%s", prefix);
822 
823 		id = buf[thread].id;
824 		if (config->stats)
825 			printout(config, id, 0, buf[thread].counter, buf[thread].uval,
826 				 prefix, buf[thread].run, buf[thread].ena, 1.0,
827 				 &config->stats[id.thread]);
828 		else
829 			printout(config, id, 0, buf[thread].counter, buf[thread].uval,
830 				 prefix, buf[thread].run, buf[thread].ena, 1.0,
831 				 &rt_stat);
832 		fputc('\n', output);
833 	}
834 
835 	free(buf);
836 }
837 
838 struct caggr_data {
839 	double avg, avg_enabled, avg_running;
840 };
841 
842 static void counter_aggr_cb(struct perf_stat_config *config __maybe_unused,
843 			    struct evsel *counter, void *data,
844 			    bool first __maybe_unused)
845 {
846 	struct caggr_data *cd = data;
847 	struct perf_counts_values *aggr = &counter->counts->aggr;
848 
849 	cd->avg += aggr->val;
850 	cd->avg_enabled += aggr->ena;
851 	cd->avg_running += aggr->run;
852 }
853 
854 /*
855  * Print out the results of a single counter:
856  * aggregated counts in system-wide mode
857  */
858 static void print_counter_aggr(struct perf_stat_config *config,
859 			       struct evsel *counter, char *prefix)
860 {
861 	bool metric_only = config->metric_only;
862 	FILE *output = config->output;
863 	double uval;
864 	struct caggr_data cd = { .avg = 0.0 };
865 
866 	if (!collect_data(config, counter, counter_aggr_cb, &cd))
867 		return;
868 
869 	if (prefix && !metric_only)
870 		fprintf(output, "%s", prefix);
871 
872 	uval = cd.avg * counter->scale;
873 	printout(config, aggr_cpu_id__empty(), 0, counter, uval, prefix, cd.avg_running,
874 		 cd.avg_enabled, cd.avg, &rt_stat);
875 	if (!metric_only)
876 		fprintf(output, "\n");
877 }
878 
879 static void counter_cb(struct perf_stat_config *config __maybe_unused,
880 		       struct evsel *counter, void *data,
881 		       bool first __maybe_unused)
882 {
883 	struct aggr_data *ad = data;
884 
885 	ad->val += perf_counts(counter->counts, ad->cpu_map_idx, 0)->val;
886 	ad->ena += perf_counts(counter->counts, ad->cpu_map_idx, 0)->ena;
887 	ad->run += perf_counts(counter->counts, ad->cpu_map_idx, 0)->run;
888 }
889 
890 /*
891  * Print out the results of a single counter:
892  * does not use aggregated count in system-wide
893  */
894 static void print_counter(struct perf_stat_config *config,
895 			  struct evsel *counter, char *prefix)
896 {
897 	FILE *output = config->output;
898 	u64 ena, run, val;
899 	double uval;
900 	int idx;
901 	struct perf_cpu cpu;
902 	struct aggr_cpu_id id;
903 
904 	perf_cpu_map__for_each_cpu(cpu, idx, evsel__cpus(counter)) {
905 		struct aggr_data ad = { .cpu_map_idx = idx };
906 
907 		if (!collect_data(config, counter, counter_cb, &ad))
908 			return;
909 		val = ad.val;
910 		ena = ad.ena;
911 		run = ad.run;
912 
913 		if (prefix)
914 			fprintf(output, "%s", prefix);
915 
916 		uval = val * counter->scale;
917 		id = aggr_cpu_id__cpu(cpu, /*data=*/NULL);
918 		printout(config, id, 0, counter, uval, prefix,
919 			 run, ena, 1.0, &rt_stat);
920 
921 		fputc('\n', output);
922 	}
923 }
924 
925 static void print_no_aggr_metric(struct perf_stat_config *config,
926 				 struct evlist *evlist,
927 				 char *prefix)
928 {
929 	int all_idx;
930 	struct perf_cpu cpu;
931 
932 	perf_cpu_map__for_each_cpu(cpu, all_idx, evlist->core.cpus) {
933 		struct evsel *counter;
934 		bool first = true;
935 
936 		if (prefix)
937 			fputs(prefix, config->output);
938 		evlist__for_each_entry(evlist, counter) {
939 			u64 ena, run, val;
940 			double uval;
941 			struct aggr_cpu_id id;
942 			int counter_idx = perf_cpu_map__idx(evsel__cpus(counter), cpu);
943 
944 			if (counter_idx < 0)
945 				continue;
946 
947 			id = aggr_cpu_id__cpu(cpu, /*data=*/NULL);
948 			if (first) {
949 				aggr_printout(config, counter, id, 0);
950 				first = false;
951 			}
952 			val = perf_counts(counter->counts, counter_idx, 0)->val;
953 			ena = perf_counts(counter->counts, counter_idx, 0)->ena;
954 			run = perf_counts(counter->counts, counter_idx, 0)->run;
955 
956 			uval = val * counter->scale;
957 			printout(config, id, 0, counter, uval, prefix,
958 				 run, ena, 1.0, &rt_stat);
959 		}
960 		fputc('\n', config->output);
961 	}
962 }
963 
964 static int aggr_header_lens[] = {
965 	[AGGR_CORE] = 24,
966 	[AGGR_DIE] = 18,
967 	[AGGR_SOCKET] = 12,
968 	[AGGR_NONE] = 6,
969 	[AGGR_THREAD] = 24,
970 	[AGGR_GLOBAL] = 0,
971 };
972 
973 static const char *aggr_header_csv[] = {
974 	[AGGR_CORE] 	= 	"core,cpus,",
975 	[AGGR_DIE] 	= 	"die,cpus",
976 	[AGGR_SOCKET] 	= 	"socket,cpus",
977 	[AGGR_NONE] 	= 	"cpu,",
978 	[AGGR_THREAD] 	= 	"comm-pid,",
979 	[AGGR_GLOBAL] 	=	""
980 };
981 
982 static void print_metric_headers(struct perf_stat_config *config,
983 				 struct evlist *evlist,
984 				 const char *prefix, bool no_indent)
985 {
986 	struct perf_stat_output_ctx out;
987 	struct evsel *counter;
988 	struct outstate os = {
989 		.fh = config->output
990 	};
991 
992 	if (prefix)
993 		fprintf(config->output, "%s", prefix);
994 
995 	if (!config->csv_output && !no_indent)
996 		fprintf(config->output, "%*s",
997 			aggr_header_lens[config->aggr_mode], "");
998 	if (config->csv_output) {
999 		if (config->interval)
1000 			fputs("time,", config->output);
1001 		if (!config->iostat_run)
1002 			fputs(aggr_header_csv[config->aggr_mode], config->output);
1003 	}
1004 	if (config->iostat_run)
1005 		iostat_print_header_prefix(config);
1006 
1007 	/* Print metrics headers only */
1008 	evlist__for_each_entry(evlist, counter) {
1009 		os.evsel = counter;
1010 		out.ctx = &os;
1011 		out.print_metric = print_metric_header;
1012 		out.new_line = new_line_metric;
1013 		out.force_header = true;
1014 		perf_stat__print_shadow_stats(config, counter, 0,
1015 					      0,
1016 					      &out,
1017 					      &config->metric_events,
1018 					      &rt_stat);
1019 	}
1020 	fputc('\n', config->output);
1021 }
1022 
1023 static void print_interval(struct perf_stat_config *config,
1024 			   struct evlist *evlist,
1025 			   char *prefix, struct timespec *ts)
1026 {
1027 	bool metric_only = config->metric_only;
1028 	unsigned int unit_width = config->unit_width;
1029 	FILE *output = config->output;
1030 	static int num_print_interval;
1031 
1032 	if (config->interval_clear)
1033 		puts(CONSOLE_CLEAR);
1034 
1035 	if (!config->iostat_run)
1036 		sprintf(prefix, "%6lu.%09lu%s", (unsigned long) ts->tv_sec, ts->tv_nsec, config->csv_sep);
1037 
1038 	if ((num_print_interval == 0 && !config->csv_output) || config->interval_clear) {
1039 		switch (config->aggr_mode) {
1040 		case AGGR_NODE:
1041 			fprintf(output, "#           time node   cpus");
1042 			if (!metric_only)
1043 				fprintf(output, "             counts %*s events\n", unit_width, "unit");
1044 			break;
1045 		case AGGR_SOCKET:
1046 			fprintf(output, "#           time socket cpus");
1047 			if (!metric_only)
1048 				fprintf(output, "             counts %*s events\n", unit_width, "unit");
1049 			break;
1050 		case AGGR_DIE:
1051 			fprintf(output, "#           time die          cpus");
1052 			if (!metric_only)
1053 				fprintf(output, "             counts %*s events\n", unit_width, "unit");
1054 			break;
1055 		case AGGR_CORE:
1056 			fprintf(output, "#           time core            cpus");
1057 			if (!metric_only)
1058 				fprintf(output, "             counts %*s events\n", unit_width, "unit");
1059 			break;
1060 		case AGGR_NONE:
1061 			fprintf(output, "#           time CPU    ");
1062 			if (!metric_only)
1063 				fprintf(output, "                counts %*s events\n", unit_width, "unit");
1064 			break;
1065 		case AGGR_THREAD:
1066 			fprintf(output, "#           time             comm-pid");
1067 			if (!metric_only)
1068 				fprintf(output, "                  counts %*s events\n", unit_width, "unit");
1069 			break;
1070 		case AGGR_GLOBAL:
1071 		default:
1072 			if (!config->iostat_run) {
1073 				fprintf(output, "#           time");
1074 				if (!metric_only)
1075 					fprintf(output, "             counts %*s events\n", unit_width, "unit");
1076 			}
1077 		case AGGR_UNSET:
1078 			break;
1079 		}
1080 	}
1081 
1082 	if ((num_print_interval == 0 || config->interval_clear) && metric_only)
1083 		print_metric_headers(config, evlist, " ", true);
1084 	if (++num_print_interval == 25)
1085 		num_print_interval = 0;
1086 }
1087 
1088 static void print_header(struct perf_stat_config *config,
1089 			 struct target *_target,
1090 			 int argc, const char **argv)
1091 {
1092 	FILE *output = config->output;
1093 	int i;
1094 
1095 	fflush(stdout);
1096 
1097 	if (!config->csv_output) {
1098 		fprintf(output, "\n");
1099 		fprintf(output, " Performance counter stats for ");
1100 		if (_target->bpf_str)
1101 			fprintf(output, "\'BPF program(s) %s", _target->bpf_str);
1102 		else if (_target->system_wide)
1103 			fprintf(output, "\'system wide");
1104 		else if (_target->cpu_list)
1105 			fprintf(output, "\'CPU(s) %s", _target->cpu_list);
1106 		else if (!target__has_task(_target)) {
1107 			fprintf(output, "\'%s", argv ? argv[0] : "pipe");
1108 			for (i = 1; argv && (i < argc); i++)
1109 				fprintf(output, " %s", argv[i]);
1110 		} else if (_target->pid)
1111 			fprintf(output, "process id \'%s", _target->pid);
1112 		else
1113 			fprintf(output, "thread id \'%s", _target->tid);
1114 
1115 		fprintf(output, "\'");
1116 		if (config->run_count > 1)
1117 			fprintf(output, " (%d runs)", config->run_count);
1118 		fprintf(output, ":\n\n");
1119 	}
1120 }
1121 
1122 static int get_precision(double num)
1123 {
1124 	if (num > 1)
1125 		return 0;
1126 
1127 	return lround(ceil(-log10(num)));
1128 }
1129 
1130 static void print_table(struct perf_stat_config *config,
1131 			FILE *output, int precision, double avg)
1132 {
1133 	char tmp[64];
1134 	int idx, indent = 0;
1135 
1136 	scnprintf(tmp, 64, " %17.*f", precision, avg);
1137 	while (tmp[indent] == ' ')
1138 		indent++;
1139 
1140 	fprintf(output, "%*s# Table of individual measurements:\n", indent, "");
1141 
1142 	for (idx = 0; idx < config->run_count; idx++) {
1143 		double run = (double) config->walltime_run[idx] / NSEC_PER_SEC;
1144 		int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5);
1145 
1146 		fprintf(output, " %17.*f (%+.*f) ",
1147 			precision, run, precision, run - avg);
1148 
1149 		for (h = 0; h < n; h++)
1150 			fprintf(output, "#");
1151 
1152 		fprintf(output, "\n");
1153 	}
1154 
1155 	fprintf(output, "\n%*s# Final result:\n", indent, "");
1156 }
1157 
1158 static double timeval2double(struct timeval *t)
1159 {
1160 	return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC;
1161 }
1162 
1163 static void print_footer(struct perf_stat_config *config)
1164 {
1165 	double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1166 	FILE *output = config->output;
1167 
1168 	if (!config->null_run)
1169 		fprintf(output, "\n");
1170 
1171 	if (config->run_count == 1) {
1172 		fprintf(output, " %17.9f seconds time elapsed", avg);
1173 
1174 		if (config->ru_display) {
1175 			double ru_utime = timeval2double(&config->ru_data.ru_utime);
1176 			double ru_stime = timeval2double(&config->ru_data.ru_stime);
1177 
1178 			fprintf(output, "\n\n");
1179 			fprintf(output, " %17.9f seconds user\n", ru_utime);
1180 			fprintf(output, " %17.9f seconds sys\n", ru_stime);
1181 		}
1182 	} else {
1183 		double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1184 		/*
1185 		 * Display at most 2 more significant
1186 		 * digits than the stddev inaccuracy.
1187 		 */
1188 		int precision = get_precision(sd) + 2;
1189 
1190 		if (config->walltime_run_table)
1191 			print_table(config, output, precision, avg);
1192 
1193 		fprintf(output, " %17.*f +- %.*f seconds time elapsed",
1194 			precision, avg, precision, sd);
1195 
1196 		print_noise_pct(config, sd, avg);
1197 	}
1198 	fprintf(output, "\n\n");
1199 
1200 	if (config->print_free_counters_hint && sysctl__nmi_watchdog_enabled())
1201 		fprintf(output,
1202 "Some events weren't counted. Try disabling the NMI watchdog:\n"
1203 "	echo 0 > /proc/sys/kernel/nmi_watchdog\n"
1204 "	perf stat ...\n"
1205 "	echo 1 > /proc/sys/kernel/nmi_watchdog\n");
1206 
1207 	if (config->print_mixed_hw_group_error)
1208 		fprintf(output,
1209 			"The events in group usually have to be from "
1210 			"the same PMU. Try reorganizing the group.\n");
1211 }
1212 
1213 static void print_percore_thread(struct perf_stat_config *config,
1214 				 struct evsel *counter, char *prefix)
1215 {
1216 	int s;
1217 	struct aggr_cpu_id s2, id;
1218 	struct perf_cpu_map *cpus;
1219 	bool first = true;
1220 	int idx;
1221 	struct perf_cpu cpu;
1222 
1223 	cpus = evsel__cpus(counter);
1224 	perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
1225 		s2 = config->aggr_get_id(config, cpu);
1226 		for (s = 0; s < config->aggr_map->nr; s++) {
1227 			id = config->aggr_map->map[s];
1228 			if (aggr_cpu_id__equal(&s2, &id))
1229 				break;
1230 		}
1231 
1232 		print_counter_aggrdata(config, counter, s,
1233 				       prefix, false,
1234 				       &first, cpu);
1235 	}
1236 }
1237 
1238 static void print_percore(struct perf_stat_config *config,
1239 			  struct evsel *counter, char *prefix)
1240 {
1241 	bool metric_only = config->metric_only;
1242 	FILE *output = config->output;
1243 	int s;
1244 	bool first = true;
1245 
1246 	if (!config->aggr_map || !config->aggr_get_id)
1247 		return;
1248 
1249 	if (config->percore_show_thread)
1250 		return print_percore_thread(config, counter, prefix);
1251 
1252 	for (s = 0; s < config->aggr_map->nr; s++) {
1253 		if (prefix && metric_only)
1254 			fprintf(output, "%s", prefix);
1255 
1256 		print_counter_aggrdata(config, counter, s,
1257 				prefix, metric_only,
1258 				&first, (struct perf_cpu){ .cpu = -1 });
1259 	}
1260 
1261 	if (metric_only)
1262 		fputc('\n', output);
1263 }
1264 
1265 void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
1266 			    struct target *_target, struct timespec *ts, int argc, const char **argv)
1267 {
1268 	bool metric_only = config->metric_only;
1269 	int interval = config->interval;
1270 	struct evsel *counter;
1271 	char buf[64], *prefix = NULL;
1272 
1273 	if (config->iostat_run)
1274 		evlist->selected = evlist__first(evlist);
1275 
1276 	if (interval)
1277 		print_interval(config, evlist, prefix = buf, ts);
1278 	else
1279 		print_header(config, _target, argc, argv);
1280 
1281 	if (metric_only) {
1282 		static int num_print_iv;
1283 
1284 		if (num_print_iv == 0 && !interval)
1285 			print_metric_headers(config, evlist, prefix, false);
1286 		if (num_print_iv++ == 25)
1287 			num_print_iv = 0;
1288 		if (config->aggr_mode == AGGR_GLOBAL && prefix && !config->iostat_run)
1289 			fprintf(config->output, "%s", prefix);
1290 	}
1291 
1292 	switch (config->aggr_mode) {
1293 	case AGGR_CORE:
1294 	case AGGR_DIE:
1295 	case AGGR_SOCKET:
1296 	case AGGR_NODE:
1297 		print_aggr(config, evlist, prefix);
1298 		break;
1299 	case AGGR_THREAD:
1300 		evlist__for_each_entry(evlist, counter) {
1301 			print_aggr_thread(config, _target, counter, prefix);
1302 		}
1303 		break;
1304 	case AGGR_GLOBAL:
1305 		if (config->iostat_run)
1306 			iostat_print_counters(evlist, config, ts, prefix = buf,
1307 					      print_counter_aggr);
1308 		else {
1309 			evlist__for_each_entry(evlist, counter) {
1310 				print_counter_aggr(config, counter, prefix);
1311 			}
1312 			if (metric_only)
1313 				fputc('\n', config->output);
1314 		}
1315 		break;
1316 	case AGGR_NONE:
1317 		if (metric_only)
1318 			print_no_aggr_metric(config, evlist, prefix);
1319 		else {
1320 			evlist__for_each_entry(evlist, counter) {
1321 				if (counter->percore)
1322 					print_percore(config, counter, prefix);
1323 				else
1324 					print_counter(config, counter, prefix);
1325 			}
1326 		}
1327 		break;
1328 	case AGGR_UNSET:
1329 	default:
1330 		break;
1331 	}
1332 
1333 	if (!interval && !config->csv_output)
1334 		print_footer(config);
1335 
1336 	fflush(config->output);
1337 }
1338