xref: /openbmc/linux/tools/perf/util/stat-display.c (revision aa74c44b) 
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 		if (strcmp(evsel__name(alias), evsel__name(counter)) ||
589 		    alias->scale != counter->scale ||
590 		    alias->cgrp != counter->cgrp ||
591 		    strcmp(alias->unit, counter->unit) ||
592 		    evsel__is_clock(alias) != evsel__is_clock(counter) ||
593 		    !strcmp(alias->pmu_name, counter->pmu_name))
594 			break;
595 		alias->merged_stat = true;
596 		cb(config, alias, data, false);
597 	}
598 }
599 
600 static bool is_uncore(struct evsel *evsel)
601 {
602 	struct perf_pmu *pmu = evsel__find_pmu(evsel);
603 
604 	return pmu && pmu->is_uncore;
605 }
606 
607 static bool hybrid_uniquify(struct evsel *evsel)
608 {
609 	return perf_pmu__has_hybrid() && !is_uncore(evsel);
610 }
611 
612 static bool collect_data(struct perf_stat_config *config, struct evsel *counter,
613 			    void (*cb)(struct perf_stat_config *config, struct evsel *counter, void *data,
614 				       bool first),
615 			    void *data)
616 {
617 	if (counter->merged_stat)
618 		return false;
619 	cb(config, counter, data, true);
620 	if (config->no_merge || hybrid_uniquify(counter))
621 		uniquify_event_name(counter);
622 	else if (counter->auto_merge_stats)
623 		collect_all_aliases(config, counter, cb, data);
624 	return true;
625 }
626 
627 struct aggr_data {
628 	u64 ena, run, val;
629 	struct aggr_cpu_id id;
630 	int nr;
631 	int cpu_map_idx;
632 };
633 
634 static void aggr_cb(struct perf_stat_config *config,
635 		    struct evsel *counter, void *data, bool first)
636 {
637 	struct aggr_data *ad = data;
638 	int idx;
639 	struct perf_cpu cpu;
640 	struct perf_cpu_map *cpus;
641 	struct aggr_cpu_id s2;
642 
643 	cpus = evsel__cpus(counter);
644 	perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
645 		struct perf_counts_values *counts;
646 
647 		s2 = config->aggr_get_id(config, cpu);
648 		if (!aggr_cpu_id__equal(&s2, &ad->id))
649 			continue;
650 		if (first)
651 			ad->nr++;
652 		counts = perf_counts(counter->counts, idx, 0);
653 		/*
654 		 * When any result is bad, make them all to give
655 		 * consistent output in interval mode.
656 		 */
657 		if (counts->ena == 0 || counts->run == 0 ||
658 		    counter->counts->scaled == -1) {
659 			ad->ena = 0;
660 			ad->run = 0;
661 			break;
662 		}
663 		ad->val += counts->val;
664 		ad->ena += counts->ena;
665 		ad->run += counts->run;
666 	}
667 }
668 
669 static void print_counter_aggrdata(struct perf_stat_config *config,
670 				   struct evsel *counter, int s,
671 				   char *prefix, bool metric_only,
672 				   bool *first, struct perf_cpu cpu)
673 {
674 	struct aggr_data ad;
675 	FILE *output = config->output;
676 	u64 ena, run, val;
677 	int nr;
678 	struct aggr_cpu_id id;
679 	double uval;
680 
681 	ad.id = id = config->aggr_map->map[s];
682 	ad.val = ad.ena = ad.run = 0;
683 	ad.nr = 0;
684 	if (!collect_data(config, counter, aggr_cb, &ad))
685 		return;
686 
687 	if (perf_pmu__has_hybrid() && ad.ena == 0)
688 		return;
689 
690 	nr = ad.nr;
691 	ena = ad.ena;
692 	run = ad.run;
693 	val = ad.val;
694 	if (*first && metric_only) {
695 		*first = false;
696 		aggr_printout(config, counter, id, nr);
697 	}
698 	if (prefix && !metric_only)
699 		fprintf(output, "%s", prefix);
700 
701 	uval = val * counter->scale;
702 	if (cpu.cpu != -1)
703 		id = aggr_cpu_id__cpu(cpu, /*data=*/NULL);
704 
705 	printout(config, id, nr, counter, uval,
706 		 prefix, run, ena, 1.0, &rt_stat);
707 	if (!metric_only)
708 		fputc('\n', output);
709 }
710 
711 static void print_aggr(struct perf_stat_config *config,
712 		       struct evlist *evlist,
713 		       char *prefix)
714 {
715 	bool metric_only = config->metric_only;
716 	FILE *output = config->output;
717 	struct evsel *counter;
718 	int s;
719 	bool first;
720 
721 	if (!config->aggr_map || !config->aggr_get_id)
722 		return;
723 
724 	aggr_update_shadow(config, evlist);
725 
726 	/*
727 	 * With metric_only everything is on a single line.
728 	 * Without each counter has its own line.
729 	 */
730 	for (s = 0; s < config->aggr_map->nr; s++) {
731 		if (prefix && metric_only)
732 			fprintf(output, "%s", prefix);
733 
734 		first = true;
735 		evlist__for_each_entry(evlist, counter) {
736 			print_counter_aggrdata(config, counter, s,
737 					prefix, metric_only,
738 					&first, (struct perf_cpu){ .cpu = -1 });
739 		}
740 		if (metric_only)
741 			fputc('\n', output);
742 	}
743 }
744 
745 static int cmp_val(const void *a, const void *b)
746 {
747 	return ((struct perf_aggr_thread_value *)b)->val -
748 		((struct perf_aggr_thread_value *)a)->val;
749 }
750 
751 static struct perf_aggr_thread_value *sort_aggr_thread(
752 					struct evsel *counter,
753 					int nthreads, int ncpus,
754 					int *ret,
755 					struct target *_target)
756 {
757 	int cpu, thread, i = 0;
758 	double uval;
759 	struct perf_aggr_thread_value *buf;
760 
761 	buf = calloc(nthreads, sizeof(struct perf_aggr_thread_value));
762 	if (!buf)
763 		return NULL;
764 
765 	for (thread = 0; thread < nthreads; thread++) {
766 		u64 ena = 0, run = 0, val = 0;
767 
768 		for (cpu = 0; cpu < ncpus; cpu++) {
769 			val += perf_counts(counter->counts, cpu, thread)->val;
770 			ena += perf_counts(counter->counts, cpu, thread)->ena;
771 			run += perf_counts(counter->counts, cpu, thread)->run;
772 		}
773 
774 		uval = val * counter->scale;
775 
776 		/*
777 		 * Skip value 0 when enabling --per-thread globally,
778 		 * otherwise too many 0 output.
779 		 */
780 		if (uval == 0.0 && target__has_per_thread(_target))
781 			continue;
782 
783 		buf[i].counter = counter;
784 		buf[i].id = aggr_cpu_id__empty();
785 		buf[i].id.thread = thread;
786 		buf[i].uval = uval;
787 		buf[i].val = val;
788 		buf[i].run = run;
789 		buf[i].ena = ena;
790 		i++;
791 	}
792 
793 	qsort(buf, i, sizeof(struct perf_aggr_thread_value), cmp_val);
794 
795 	if (ret)
796 		*ret = i;
797 
798 	return buf;
799 }
800 
801 static void print_aggr_thread(struct perf_stat_config *config,
802 			      struct target *_target,
803 			      struct evsel *counter, char *prefix)
804 {
805 	FILE *output = config->output;
806 	int nthreads = perf_thread_map__nr(counter->core.threads);
807 	int ncpus = perf_cpu_map__nr(counter->core.cpus);
808 	int thread, sorted_threads;
809 	struct aggr_cpu_id id;
810 	struct perf_aggr_thread_value *buf;
811 
812 	buf = sort_aggr_thread(counter, nthreads, ncpus, &sorted_threads, _target);
813 	if (!buf) {
814 		perror("cannot sort aggr thread");
815 		return;
816 	}
817 
818 	for (thread = 0; thread < sorted_threads; thread++) {
819 		if (prefix)
820 			fprintf(output, "%s", prefix);
821 
822 		id = buf[thread].id;
823 		if (config->stats)
824 			printout(config, id, 0, buf[thread].counter, buf[thread].uval,
825 				 prefix, buf[thread].run, buf[thread].ena, 1.0,
826 				 &config->stats[id.thread]);
827 		else
828 			printout(config, id, 0, buf[thread].counter, buf[thread].uval,
829 				 prefix, buf[thread].run, buf[thread].ena, 1.0,
830 				 &rt_stat);
831 		fputc('\n', output);
832 	}
833 
834 	free(buf);
835 }
836 
837 struct caggr_data {
838 	double avg, avg_enabled, avg_running;
839 };
840 
841 static void counter_aggr_cb(struct perf_stat_config *config __maybe_unused,
842 			    struct evsel *counter, void *data,
843 			    bool first __maybe_unused)
844 {
845 	struct caggr_data *cd = data;
846 	struct perf_counts_values *aggr = &counter->counts->aggr;
847 
848 	cd->avg += aggr->val;
849 	cd->avg_enabled += aggr->ena;
850 	cd->avg_running += aggr->run;
851 }
852 
853 /*
854  * Print out the results of a single counter:
855  * aggregated counts in system-wide mode
856  */
857 static void print_counter_aggr(struct perf_stat_config *config,
858 			       struct evsel *counter, char *prefix)
859 {
860 	bool metric_only = config->metric_only;
861 	FILE *output = config->output;
862 	double uval;
863 	struct caggr_data cd = { .avg = 0.0 };
864 
865 	if (!collect_data(config, counter, counter_aggr_cb, &cd))
866 		return;
867 
868 	if (prefix && !metric_only)
869 		fprintf(output, "%s", prefix);
870 
871 	uval = cd.avg * counter->scale;
872 	printout(config, aggr_cpu_id__empty(), 0, counter, uval, prefix, cd.avg_running,
873 		 cd.avg_enabled, cd.avg, &rt_stat);
874 	if (!metric_only)
875 		fprintf(output, "\n");
876 }
877 
878 static void counter_cb(struct perf_stat_config *config __maybe_unused,
879 		       struct evsel *counter, void *data,
880 		       bool first __maybe_unused)
881 {
882 	struct aggr_data *ad = data;
883 
884 	ad->val += perf_counts(counter->counts, ad->cpu_map_idx, 0)->val;
885 	ad->ena += perf_counts(counter->counts, ad->cpu_map_idx, 0)->ena;
886 	ad->run += perf_counts(counter->counts, ad->cpu_map_idx, 0)->run;
887 }
888 
889 /*
890  * Print out the results of a single counter:
891  * does not use aggregated count in system-wide
892  */
893 static void print_counter(struct perf_stat_config *config,
894 			  struct evsel *counter, char *prefix)
895 {
896 	FILE *output = config->output;
897 	u64 ena, run, val;
898 	double uval;
899 	int idx;
900 	struct perf_cpu cpu;
901 	struct aggr_cpu_id id;
902 
903 	perf_cpu_map__for_each_cpu(cpu, idx, evsel__cpus(counter)) {
904 		struct aggr_data ad = { .cpu_map_idx = idx };
905 
906 		if (!collect_data(config, counter, counter_cb, &ad))
907 			return;
908 		val = ad.val;
909 		ena = ad.ena;
910 		run = ad.run;
911 
912 		if (prefix)
913 			fprintf(output, "%s", prefix);
914 
915 		uval = val * counter->scale;
916 		id = aggr_cpu_id__cpu(cpu, /*data=*/NULL);
917 		printout(config, id, 0, counter, uval, prefix,
918 			 run, ena, 1.0, &rt_stat);
919 
920 		fputc('\n', output);
921 	}
922 }
923 
924 static void print_no_aggr_metric(struct perf_stat_config *config,
925 				 struct evlist *evlist,
926 				 char *prefix)
927 {
928 	int all_idx;
929 	struct perf_cpu cpu;
930 
931 	perf_cpu_map__for_each_cpu(cpu, all_idx, evlist->core.cpus) {
932 		struct evsel *counter;
933 		bool first = true;
934 
935 		if (prefix)
936 			fputs(prefix, config->output);
937 		evlist__for_each_entry(evlist, counter) {
938 			u64 ena, run, val;
939 			double uval;
940 			struct aggr_cpu_id id;
941 			int counter_idx = perf_cpu_map__idx(evsel__cpus(counter), cpu);
942 
943 			if (counter_idx < 0)
944 				continue;
945 
946 			id = aggr_cpu_id__cpu(cpu, /*data=*/NULL);
947 			if (first) {
948 				aggr_printout(config, counter, id, 0);
949 				first = false;
950 			}
951 			val = perf_counts(counter->counts, counter_idx, 0)->val;
952 			ena = perf_counts(counter->counts, counter_idx, 0)->ena;
953 			run = perf_counts(counter->counts, counter_idx, 0)->run;
954 
955 			uval = val * counter->scale;
956 			printout(config, id, 0, counter, uval, prefix,
957 				 run, ena, 1.0, &rt_stat);
958 		}
959 		fputc('\n', config->output);
960 	}
961 }
962 
963 static int aggr_header_lens[] = {
964 	[AGGR_CORE] = 24,
965 	[AGGR_DIE] = 18,
966 	[AGGR_SOCKET] = 12,
967 	[AGGR_NONE] = 6,
968 	[AGGR_THREAD] = 24,
969 	[AGGR_GLOBAL] = 0,
970 };
971 
972 static const char *aggr_header_csv[] = {
973 	[AGGR_CORE] 	= 	"core,cpus,",
974 	[AGGR_DIE] 	= 	"die,cpus",
975 	[AGGR_SOCKET] 	= 	"socket,cpus",
976 	[AGGR_NONE] 	= 	"cpu,",
977 	[AGGR_THREAD] 	= 	"comm-pid,",
978 	[AGGR_GLOBAL] 	=	""
979 };
980 
981 static void print_metric_headers(struct perf_stat_config *config,
982 				 struct evlist *evlist,
983 				 const char *prefix, bool no_indent)
984 {
985 	struct perf_stat_output_ctx out;
986 	struct evsel *counter;
987 	struct outstate os = {
988 		.fh = config->output
989 	};
990 
991 	if (prefix)
992 		fprintf(config->output, "%s", prefix);
993 
994 	if (!config->csv_output && !no_indent)
995 		fprintf(config->output, "%*s",
996 			aggr_header_lens[config->aggr_mode], "");
997 	if (config->csv_output) {
998 		if (config->interval)
999 			fputs("time,", config->output);
1000 		if (!config->iostat_run)
1001 			fputs(aggr_header_csv[config->aggr_mode], config->output);
1002 	}
1003 	if (config->iostat_run)
1004 		iostat_print_header_prefix(config);
1005 
1006 	/* Print metrics headers only */
1007 	evlist__for_each_entry(evlist, counter) {
1008 		os.evsel = counter;
1009 		out.ctx = &os;
1010 		out.print_metric = print_metric_header;
1011 		out.new_line = new_line_metric;
1012 		out.force_header = true;
1013 		perf_stat__print_shadow_stats(config, counter, 0,
1014 					      0,
1015 					      &out,
1016 					      &config->metric_events,
1017 					      &rt_stat);
1018 	}
1019 	fputc('\n', config->output);
1020 }
1021 
1022 static void print_interval(struct perf_stat_config *config,
1023 			   struct evlist *evlist,
1024 			   char *prefix, struct timespec *ts)
1025 {
1026 	bool metric_only = config->metric_only;
1027 	unsigned int unit_width = config->unit_width;
1028 	FILE *output = config->output;
1029 	static int num_print_interval;
1030 
1031 	if (config->interval_clear)
1032 		puts(CONSOLE_CLEAR);
1033 
1034 	if (!config->iostat_run)
1035 		sprintf(prefix, "%6lu.%09lu%s", (unsigned long) ts->tv_sec, ts->tv_nsec, config->csv_sep);
1036 
1037 	if ((num_print_interval == 0 && !config->csv_output) || config->interval_clear) {
1038 		switch (config->aggr_mode) {
1039 		case AGGR_NODE:
1040 			fprintf(output, "#           time node   cpus");
1041 			if (!metric_only)
1042 				fprintf(output, "             counts %*s events\n", unit_width, "unit");
1043 			break;
1044 		case AGGR_SOCKET:
1045 			fprintf(output, "#           time socket cpus");
1046 			if (!metric_only)
1047 				fprintf(output, "             counts %*s events\n", unit_width, "unit");
1048 			break;
1049 		case AGGR_DIE:
1050 			fprintf(output, "#           time die          cpus");
1051 			if (!metric_only)
1052 				fprintf(output, "             counts %*s events\n", unit_width, "unit");
1053 			break;
1054 		case AGGR_CORE:
1055 			fprintf(output, "#           time core            cpus");
1056 			if (!metric_only)
1057 				fprintf(output, "             counts %*s events\n", unit_width, "unit");
1058 			break;
1059 		case AGGR_NONE:
1060 			fprintf(output, "#           time CPU    ");
1061 			if (!metric_only)
1062 				fprintf(output, "                counts %*s events\n", unit_width, "unit");
1063 			break;
1064 		case AGGR_THREAD:
1065 			fprintf(output, "#           time             comm-pid");
1066 			if (!metric_only)
1067 				fprintf(output, "                  counts %*s events\n", unit_width, "unit");
1068 			break;
1069 		case AGGR_GLOBAL:
1070 		default:
1071 			if (!config->iostat_run) {
1072 				fprintf(output, "#           time");
1073 				if (!metric_only)
1074 					fprintf(output, "             counts %*s events\n", unit_width, "unit");
1075 			}
1076 		case AGGR_UNSET:
1077 			break;
1078 		}
1079 	}
1080 
1081 	if ((num_print_interval == 0 || config->interval_clear) && metric_only)
1082 		print_metric_headers(config, evlist, " ", true);
1083 	if (++num_print_interval == 25)
1084 		num_print_interval = 0;
1085 }
1086 
1087 static void print_header(struct perf_stat_config *config,
1088 			 struct target *_target,
1089 			 int argc, const char **argv)
1090 {
1091 	FILE *output = config->output;
1092 	int i;
1093 
1094 	fflush(stdout);
1095 
1096 	if (!config->csv_output) {
1097 		fprintf(output, "\n");
1098 		fprintf(output, " Performance counter stats for ");
1099 		if (_target->bpf_str)
1100 			fprintf(output, "\'BPF program(s) %s", _target->bpf_str);
1101 		else if (_target->system_wide)
1102 			fprintf(output, "\'system wide");
1103 		else if (_target->cpu_list)
1104 			fprintf(output, "\'CPU(s) %s", _target->cpu_list);
1105 		else if (!target__has_task(_target)) {
1106 			fprintf(output, "\'%s", argv ? argv[0] : "pipe");
1107 			for (i = 1; argv && (i < argc); i++)
1108 				fprintf(output, " %s", argv[i]);
1109 		} else if (_target->pid)
1110 			fprintf(output, "process id \'%s", _target->pid);
1111 		else
1112 			fprintf(output, "thread id \'%s", _target->tid);
1113 
1114 		fprintf(output, "\'");
1115 		if (config->run_count > 1)
1116 			fprintf(output, " (%d runs)", config->run_count);
1117 		fprintf(output, ":\n\n");
1118 	}
1119 }
1120 
1121 static int get_precision(double num)
1122 {
1123 	if (num > 1)
1124 		return 0;
1125 
1126 	return lround(ceil(-log10(num)));
1127 }
1128 
1129 static void print_table(struct perf_stat_config *config,
1130 			FILE *output, int precision, double avg)
1131 {
1132 	char tmp[64];
1133 	int idx, indent = 0;
1134 
1135 	scnprintf(tmp, 64, " %17.*f", precision, avg);
1136 	while (tmp[indent] == ' ')
1137 		indent++;
1138 
1139 	fprintf(output, "%*s# Table of individual measurements:\n", indent, "");
1140 
1141 	for (idx = 0; idx < config->run_count; idx++) {
1142 		double run = (double) config->walltime_run[idx] / NSEC_PER_SEC;
1143 		int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5);
1144 
1145 		fprintf(output, " %17.*f (%+.*f) ",
1146 			precision, run, precision, run - avg);
1147 
1148 		for (h = 0; h < n; h++)
1149 			fprintf(output, "#");
1150 
1151 		fprintf(output, "\n");
1152 	}
1153 
1154 	fprintf(output, "\n%*s# Final result:\n", indent, "");
1155 }
1156 
1157 static double timeval2double(struct timeval *t)
1158 {
1159 	return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC;
1160 }
1161 
1162 static void print_footer(struct perf_stat_config *config)
1163 {
1164 	double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1165 	FILE *output = config->output;
1166 
1167 	if (!config->null_run)
1168 		fprintf(output, "\n");
1169 
1170 	if (config->run_count == 1) {
1171 		fprintf(output, " %17.9f seconds time elapsed", avg);
1172 
1173 		if (config->ru_display) {
1174 			double ru_utime = timeval2double(&config->ru_data.ru_utime);
1175 			double ru_stime = timeval2double(&config->ru_data.ru_stime);
1176 
1177 			fprintf(output, "\n\n");
1178 			fprintf(output, " %17.9f seconds user\n", ru_utime);
1179 			fprintf(output, " %17.9f seconds sys\n", ru_stime);
1180 		}
1181 	} else {
1182 		double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1183 		/*
1184 		 * Display at most 2 more significant
1185 		 * digits than the stddev inaccuracy.
1186 		 */
1187 		int precision = get_precision(sd) + 2;
1188 
1189 		if (config->walltime_run_table)
1190 			print_table(config, output, precision, avg);
1191 
1192 		fprintf(output, " %17.*f +- %.*f seconds time elapsed",
1193 			precision, avg, precision, sd);
1194 
1195 		print_noise_pct(config, sd, avg);
1196 	}
1197 	fprintf(output, "\n\n");
1198 
1199 	if (config->print_free_counters_hint && sysctl__nmi_watchdog_enabled())
1200 		fprintf(output,
1201 "Some events weren't counted. Try disabling the NMI watchdog:\n"
1202 "	echo 0 > /proc/sys/kernel/nmi_watchdog\n"
1203 "	perf stat ...\n"
1204 "	echo 1 > /proc/sys/kernel/nmi_watchdog\n");
1205 
1206 	if (config->print_mixed_hw_group_error)
1207 		fprintf(output,
1208 			"The events in group usually have to be from "
1209 			"the same PMU. Try reorganizing the group.\n");
1210 }
1211 
1212 static void print_percore_thread(struct perf_stat_config *config,
1213 				 struct evsel *counter, char *prefix)
1214 {
1215 	int s;
1216 	struct aggr_cpu_id s2, id;
1217 	struct perf_cpu_map *cpus;
1218 	bool first = true;
1219 	int idx;
1220 	struct perf_cpu cpu;
1221 
1222 	cpus = evsel__cpus(counter);
1223 	perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
1224 		s2 = config->aggr_get_id(config, cpu);
1225 		for (s = 0; s < config->aggr_map->nr; s++) {
1226 			id = config->aggr_map->map[s];
1227 			if (aggr_cpu_id__equal(&s2, &id))
1228 				break;
1229 		}
1230 
1231 		print_counter_aggrdata(config, counter, s,
1232 				       prefix, false,
1233 				       &first, cpu);
1234 	}
1235 }
1236 
1237 static void print_percore(struct perf_stat_config *config,
1238 			  struct evsel *counter, char *prefix)
1239 {
1240 	bool metric_only = config->metric_only;
1241 	FILE *output = config->output;
1242 	int s;
1243 	bool first = true;
1244 
1245 	if (!config->aggr_map || !config->aggr_get_id)
1246 		return;
1247 
1248 	if (config->percore_show_thread)
1249 		return print_percore_thread(config, counter, prefix);
1250 
1251 	for (s = 0; s < config->aggr_map->nr; s++) {
1252 		if (prefix && metric_only)
1253 			fprintf(output, "%s", prefix);
1254 
1255 		print_counter_aggrdata(config, counter, s,
1256 				prefix, metric_only,
1257 				&first, (struct perf_cpu){ .cpu = -1 });
1258 	}
1259 
1260 	if (metric_only)
1261 		fputc('\n', output);
1262 }
1263 
1264 void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
1265 			    struct target *_target, struct timespec *ts, int argc, const char **argv)
1266 {
1267 	bool metric_only = config->metric_only;
1268 	int interval = config->interval;
1269 	struct evsel *counter;
1270 	char buf[64], *prefix = NULL;
1271 
1272 	if (config->iostat_run)
1273 		evlist->selected = evlist__first(evlist);
1274 
1275 	if (interval)
1276 		print_interval(config, evlist, prefix = buf, ts);
1277 	else
1278 		print_header(config, _target, argc, argv);
1279 
1280 	if (metric_only) {
1281 		static int num_print_iv;
1282 
1283 		if (num_print_iv == 0 && !interval)
1284 			print_metric_headers(config, evlist, prefix, false);
1285 		if (num_print_iv++ == 25)
1286 			num_print_iv = 0;
1287 		if (config->aggr_mode == AGGR_GLOBAL && prefix && !config->iostat_run)
1288 			fprintf(config->output, "%s", prefix);
1289 	}
1290 
1291 	switch (config->aggr_mode) {
1292 	case AGGR_CORE:
1293 	case AGGR_DIE:
1294 	case AGGR_SOCKET:
1295 	case AGGR_NODE:
1296 		print_aggr(config, evlist, prefix);
1297 		break;
1298 	case AGGR_THREAD:
1299 		evlist__for_each_entry(evlist, counter) {
1300 			print_aggr_thread(config, _target, counter, prefix);
1301 		}
1302 		break;
1303 	case AGGR_GLOBAL:
1304 		if (config->iostat_run)
1305 			iostat_print_counters(evlist, config, ts, prefix = buf,
1306 					      print_counter_aggr);
1307 		else {
1308 			evlist__for_each_entry(evlist, counter) {
1309 				print_counter_aggr(config, counter, prefix);
1310 			}
1311 			if (metric_only)
1312 				fputc('\n', config->output);
1313 		}
1314 		break;
1315 	case AGGR_NONE:
1316 		if (metric_only)
1317 			print_no_aggr_metric(config, evlist, prefix);
1318 		else {
1319 			evlist__for_each_entry(evlist, counter) {
1320 				if (counter->percore)
1321 					print_percore(config, counter, prefix);
1322 				else
1323 					print_counter(config, counter, prefix);
1324 			}
1325 		}
1326 		break;
1327 	case AGGR_UNSET:
1328 	default:
1329 		break;
1330 	}
1331 
1332 	if (!interval && !config->csv_output)
1333 		print_footer(config);
1334 
1335 	fflush(config->output);
1336 }
1337