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   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.h"
  23#include "pmus.h"
  24
  25#define CNTR_NOT_SUPPORTED	"<not supported>"
  26#define CNTR_NOT_COUNTED	"<not counted>"
  27
  28#define MGROUP_LEN   50
  29#define METRIC_LEN   38
  30#define EVNAME_LEN   32
  31#define COUNTS_LEN   18
  32#define INTERVAL_LEN 16
  33#define CGROUP_LEN   16
  34#define COMM_LEN     16
  35#define PID_LEN       7
  36#define CPUS_LEN      4
  37
  38static int aggr_header_lens[] = {
  39	[AGGR_CORE] 	= 18,
  40	[AGGR_CACHE]	= 22,
  41	[AGGR_DIE] 	= 12,
  42	[AGGR_SOCKET] 	= 6,
  43	[AGGR_NODE] 	= 6,
  44	[AGGR_NONE] 	= 6,
  45	[AGGR_THREAD] 	= 16,
  46	[AGGR_GLOBAL] 	= 0,
  47};
  48
  49static const char *aggr_header_csv[] = {
  50	[AGGR_CORE] 	= 	"core,cpus,",
  51	[AGGR_CACHE]	= 	"cache,cpus,",
  52	[AGGR_DIE] 	= 	"die,cpus,",
  53	[AGGR_SOCKET] 	= 	"socket,cpus,",
  54	[AGGR_NONE] 	= 	"cpu,",
  55	[AGGR_THREAD] 	= 	"comm-pid,",
  56	[AGGR_NODE] 	= 	"node,",
  57	[AGGR_GLOBAL] 	=	""
  58};
  59
  60static const char *aggr_header_std[] = {
  61	[AGGR_CORE] 	= 	"core",
  62	[AGGR_CACHE] 	= 	"cache",
  63	[AGGR_DIE] 	= 	"die",
  64	[AGGR_SOCKET] 	= 	"socket",
  65	[AGGR_NONE] 	= 	"cpu",
  66	[AGGR_THREAD] 	= 	"comm-pid",
  67	[AGGR_NODE] 	= 	"node",
  68	[AGGR_GLOBAL] 	=	""
  69};
  70
  71static void print_running_std(struct perf_stat_config *config, u64 run, u64 ena)
  72{
  73	if (run != ena)
  74		fprintf(config->output, "  (%.2f%%)", 100.0 * run / ena);
  75}
  76
  77static void print_running_csv(struct perf_stat_config *config, u64 run, u64 ena)
  78{
  79	double enabled_percent = 100;
  80
  81	if (run != ena)
  82		enabled_percent = 100 * run / ena;
  83	fprintf(config->output, "%s%" PRIu64 "%s%.2f",
  84		config->csv_sep, run, config->csv_sep, enabled_percent);
  85}
  86
  87static void print_running_json(struct perf_stat_config *config, u64 run, u64 ena)
  88{
  89	double enabled_percent = 100;
  90
  91	if (run != ena)
  92		enabled_percent = 100 * run / ena;
  93	fprintf(config->output, "\"event-runtime\" : %" PRIu64 ", \"pcnt-running\" : %.2f, ",
  94		run, enabled_percent);
  95}
  96
  97static void print_running(struct perf_stat_config *config,
  98			  u64 run, u64 ena, bool before_metric)
  99{
 100	if (config->json_output) {
 101		if (before_metric)
 102			print_running_json(config, run, ena);
 103	} else if (config->csv_output) {
 104		if (before_metric)
 105			print_running_csv(config, run, ena);
 106	} else {
 107		if (!before_metric)
 108			print_running_std(config, run, ena);
 109	}
 110}
 111
 112static void print_noise_pct_std(struct perf_stat_config *config,
 113				double pct)
 114{
 115	if (pct)
 116		fprintf(config->output, "  ( +-%6.2f%% )", pct);
 117}
 118
 119static void print_noise_pct_csv(struct perf_stat_config *config,
 120				double pct)
 121{
 122	fprintf(config->output, "%s%.2f%%", config->csv_sep, pct);
 123}
 124
 125static void print_noise_pct_json(struct perf_stat_config *config,
 126				 double pct)
 127{
 128	fprintf(config->output, "\"variance\" : %.2f, ", pct);
 129}
 130
 131static void print_noise_pct(struct perf_stat_config *config,
 132			    double total, double avg, bool before_metric)
 133{
 134	double pct = rel_stddev_stats(total, avg);
 135
 136	if (config->json_output) {
 137		if (before_metric)
 138			print_noise_pct_json(config, pct);
 139	} else if (config->csv_output) {
 140		if (before_metric)
 141			print_noise_pct_csv(config, pct);
 142	} else {
 143		if (!before_metric)
 144			print_noise_pct_std(config, pct);
 145	}
 146}
 147
 148static void print_noise(struct perf_stat_config *config,
 149			struct evsel *evsel, double avg, bool before_metric)
 150{
 151	struct perf_stat_evsel *ps;
 152
 153	if (config->run_count == 1)
 154		return;
 155
 156	ps = evsel->stats;
 157	print_noise_pct(config, stddev_stats(&ps->res_stats), avg, before_metric);
 158}
 159
 160static void print_cgroup_std(struct perf_stat_config *config, const char *cgrp_name)
 161{
 162	fprintf(config->output, " %-*s", CGROUP_LEN, cgrp_name);
 163}
 164
 165static void print_cgroup_csv(struct perf_stat_config *config, const char *cgrp_name)
 166{
 167	fprintf(config->output, "%s%s", config->csv_sep, cgrp_name);
 168}
 169
 170static void print_cgroup_json(struct perf_stat_config *config, const char *cgrp_name)
 171{
 172	fprintf(config->output, "\"cgroup\" : \"%s\", ", cgrp_name);
 173}
 174
 175static void print_cgroup(struct perf_stat_config *config, struct cgroup *cgrp)
 176{
 177	if (nr_cgroups || config->cgroup_list) {
 178		const char *cgrp_name = cgrp ? cgrp->name  : "";
 179
 180		if (config->json_output)
 181			print_cgroup_json(config, cgrp_name);
 182		else if (config->csv_output)
 183			print_cgroup_csv(config, cgrp_name);
 184		else
 185			print_cgroup_std(config, cgrp_name);
 186	}
 187}
 188
 189static void print_aggr_id_std(struct perf_stat_config *config,
 190			      struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
 191{
 192	FILE *output = config->output;
 193	int idx = config->aggr_mode;
 194	char buf[128];
 195
 196	switch (config->aggr_mode) {
 197	case AGGR_CORE:
 198		snprintf(buf, sizeof(buf), "S%d-D%d-C%d", id.socket, id.die, id.core);
 199		break;
 200	case AGGR_CACHE:
 201		snprintf(buf, sizeof(buf), "S%d-D%d-L%d-ID%d",
 202			 id.socket, id.die, id.cache_lvl, id.cache);
 203		break;
 204	case AGGR_DIE:
 205		snprintf(buf, sizeof(buf), "S%d-D%d", id.socket, id.die);
 206		break;
 207	case AGGR_SOCKET:
 208		snprintf(buf, sizeof(buf), "S%d", id.socket);
 209		break;
 210	case AGGR_NODE:
 211		snprintf(buf, sizeof(buf), "N%d", id.node);
 212		break;
 213	case AGGR_NONE:
 214		if (evsel->percore && !config->percore_show_thread) {
 215			snprintf(buf, sizeof(buf), "S%d-D%d-C%d ",
 216				id.socket, id.die, id.core);
 217			fprintf(output, "%-*s ",
 218				aggr_header_lens[AGGR_CORE], buf);
 219		} else if (id.cpu.cpu > -1) {
 220			fprintf(output, "CPU%-*d ",
 221				aggr_header_lens[AGGR_NONE] - 3, id.cpu.cpu);
 222		}
 223		return;
 224	case AGGR_THREAD:
 225		fprintf(output, "%*s-%-*d ",
 226			COMM_LEN, perf_thread_map__comm(evsel->core.threads, id.thread_idx),
 227			PID_LEN, perf_thread_map__pid(evsel->core.threads, id.thread_idx));
 228		return;
 229	case AGGR_GLOBAL:
 230	case AGGR_UNSET:
 231	case AGGR_MAX:
 232	default:
 233		return;
 234	}
 235
 236	fprintf(output, "%-*s %*d ", aggr_header_lens[idx], buf, 4, aggr_nr);
 237}
 238
 239static void print_aggr_id_csv(struct perf_stat_config *config,
 240			      struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
 241{
 242	FILE *output = config->output;
 243	const char *sep = config->csv_sep;
 244
 245	switch (config->aggr_mode) {
 246	case AGGR_CORE:
 247		fprintf(output, "S%d-D%d-C%d%s%d%s",
 248			id.socket, id.die, id.core, sep, aggr_nr, sep);
 249		break;
 250	case AGGR_CACHE:
 251		fprintf(config->output, "S%d-D%d-L%d-ID%d%s%d%s",
 252			id.socket, id.die, id.cache_lvl, id.cache, sep, aggr_nr, sep);
 253		break;
 254	case AGGR_DIE:
 255		fprintf(output, "S%d-D%d%s%d%s",
 256			id.socket, id.die, sep, aggr_nr, sep);
 257		break;
 258	case AGGR_SOCKET:
 259		fprintf(output, "S%d%s%d%s",
 260			id.socket, sep, aggr_nr, sep);
 261		break;
 262	case AGGR_NODE:
 263		fprintf(output, "N%d%s%d%s",
 264			id.node, sep, aggr_nr, sep);
 265		break;
 266	case AGGR_NONE:
 267		if (evsel->percore && !config->percore_show_thread) {
 268			fprintf(output, "S%d-D%d-C%d%s",
 269				id.socket, id.die, id.core, sep);
 270		} else if (id.cpu.cpu > -1) {
 271			fprintf(output, "CPU%d%s",
 272				id.cpu.cpu, sep);
 273		}
 274		break;
 275	case AGGR_THREAD:
 276		fprintf(output, "%s-%d%s",
 277			perf_thread_map__comm(evsel->core.threads, id.thread_idx),
 278			perf_thread_map__pid(evsel->core.threads, id.thread_idx),
 279			sep);
 280		break;
 281	case AGGR_GLOBAL:
 282	case AGGR_UNSET:
 283	case AGGR_MAX:
 284	default:
 285		break;
 286	}
 287}
 288
 289static void print_aggr_id_json(struct perf_stat_config *config,
 290			       struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
 291{
 292	FILE *output = config->output;
 293
 294	switch (config->aggr_mode) {
 295	case AGGR_CORE:
 296		fprintf(output, "\"core\" : \"S%d-D%d-C%d\", \"aggregate-number\" : %d, ",
 297			id.socket, id.die, id.core, aggr_nr);
 298		break;
 299	case AGGR_CACHE:
 300		fprintf(output, "\"cache\" : \"S%d-D%d-L%d-ID%d\", \"aggregate-number\" : %d, ",
 301			id.socket, id.die, id.cache_lvl, id.cache, aggr_nr);
 302		break;
 303	case AGGR_DIE:
 304		fprintf(output, "\"die\" : \"S%d-D%d\", \"aggregate-number\" : %d, ",
 305			id.socket, id.die, aggr_nr);
 306		break;
 307	case AGGR_SOCKET:
 308		fprintf(output, "\"socket\" : \"S%d\", \"aggregate-number\" : %d, ",
 309			id.socket, aggr_nr);
 310		break;
 311	case AGGR_NODE:
 312		fprintf(output, "\"node\" : \"N%d\", \"aggregate-number\" : %d, ",
 313			id.node, aggr_nr);
 314		break;
 315	case AGGR_NONE:
 316		if (evsel->percore && !config->percore_show_thread) {
 317			fprintf(output, "\"core\" : \"S%d-D%d-C%d\"",
 318				id.socket, id.die, id.core);
 319		} else if (id.cpu.cpu > -1) {
 320			fprintf(output, "\"cpu\" : \"%d\", ",
 321				id.cpu.cpu);
 322		}
 323		break;
 324	case AGGR_THREAD:
 325		fprintf(output, "\"thread\" : \"%s-%d\", ",
 326			perf_thread_map__comm(evsel->core.threads, id.thread_idx),
 327			perf_thread_map__pid(evsel->core.threads, id.thread_idx));
 328		break;
 329	case AGGR_GLOBAL:
 330	case AGGR_UNSET:
 331	case AGGR_MAX:
 332	default:
 333		break;
 334	}
 335}
 336
 337static void aggr_printout(struct perf_stat_config *config,
 338			  struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
 339{
 340	if (config->json_output)
 341		print_aggr_id_json(config, evsel, id, aggr_nr);
 342	else if (config->csv_output)
 343		print_aggr_id_csv(config, evsel, id, aggr_nr);
 344	else
 345		print_aggr_id_std(config, evsel, id, aggr_nr);
 346}
 347
 348struct outstate {
 349	FILE *fh;
 350	bool newline;
 351	bool first;
 352	const char *prefix;
 353	int  nfields;
 354	int  aggr_nr;
 355	struct aggr_cpu_id id;
 356	struct evsel *evsel;
 357	struct cgroup *cgrp;
 358};
 359
 360static void new_line_std(struct perf_stat_config *config __maybe_unused,
 361			 void *ctx)
 362{
 363	struct outstate *os = ctx;
 364
 365	os->newline = true;
 366}
 367
 368static inline void __new_line_std_csv(struct perf_stat_config *config,
 369				      struct outstate *os)
 370{
 371	fputc('\n', os->fh);
 372	if (os->prefix)
 373		fputs(os->prefix, os->fh);
 374	aggr_printout(config, os->evsel, os->id, os->aggr_nr);
 375}
 376
 377static inline void __new_line_std(struct outstate *os)
 378{
 379	fprintf(os->fh, "                                                 ");
 380}
 381
 382static void do_new_line_std(struct perf_stat_config *config,
 383			    struct outstate *os)
 384{
 385	__new_line_std_csv(config, os);
 386	if (config->aggr_mode == AGGR_NONE)
 387		fprintf(os->fh, "        ");
 388	__new_line_std(os);
 389}
 390
 391static void print_metric_std(struct perf_stat_config *config,
 392			     void *ctx, const char *color, const char *fmt,
 393			     const char *unit, double val)
 394{
 395	struct outstate *os = ctx;
 396	FILE *out = os->fh;
 397	int n;
 398	bool newline = os->newline;
 399
 400	os->newline = false;
 401
 402	if (unit == NULL || fmt == NULL) {
 403		fprintf(out, "%-*s", METRIC_LEN, "");
 404		return;
 405	}
 406
 407	if (newline)
 408		do_new_line_std(config, os);
 409
 410	n = fprintf(out, " # ");
 411	if (color)
 412		n += color_fprintf(out, color, fmt, val);
 413	else
 414		n += fprintf(out, fmt, val);
 415	fprintf(out, " %-*s", METRIC_LEN - n - 1, unit);
 416}
 417
 418static void new_line_csv(struct perf_stat_config *config, void *ctx)
 419{
 420	struct outstate *os = ctx;
 421	int i;
 422
 423	__new_line_std_csv(config, os);
 424	for (i = 0; i < os->nfields; i++)
 425		fputs(config->csv_sep, os->fh);
 426}
 427
 428static void print_metric_csv(struct perf_stat_config *config __maybe_unused,
 429			     void *ctx,
 430			     const char *color __maybe_unused,
 431			     const char *fmt, const char *unit, double val)
 432{
 433	struct outstate *os = ctx;
 434	FILE *out = os->fh;
 435	char buf[64], *vals, *ends;
 436
 437	if (unit == NULL || fmt == NULL) {
 438		fprintf(out, "%s%s", config->csv_sep, config->csv_sep);
 439		return;
 440	}
 441	snprintf(buf, sizeof(buf), fmt, val);
 442	ends = vals = skip_spaces(buf);
 443	while (isdigit(*ends) || *ends == '.')
 444		ends++;
 445	*ends = 0;
 446	fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, skip_spaces(unit));
 447}
 448
 449static void print_metric_json(struct perf_stat_config *config __maybe_unused,
 450			     void *ctx,
 451			     const char *color __maybe_unused,
 452			     const char *fmt __maybe_unused,
 453			     const char *unit, double val)
 454{
 455	struct outstate *os = ctx;
 456	FILE *out = os->fh;
 457
 458	fprintf(out, "\"metric-value\" : \"%f\", ", val);
 459	fprintf(out, "\"metric-unit\" : \"%s\"", unit);
 460	if (!config->metric_only)
 461		fprintf(out, "}");
 462}
 463
 464static void new_line_json(struct perf_stat_config *config, void *ctx)
 465{
 466	struct outstate *os = ctx;
 467
 468	fputs("\n{", os->fh);
 469	if (os->prefix)
 470		fprintf(os->fh, "%s", os->prefix);
 471	aggr_printout(config, os->evsel, os->id, os->aggr_nr);
 472}
 473
 474static void print_metricgroup_header_json(struct perf_stat_config *config,
 475					  void *ctx,
 476					  const char *metricgroup_name)
 477{
 478	if (!metricgroup_name)
 479		return;
 480
 481	fprintf(config->output, "\"metricgroup\" : \"%s\"}", metricgroup_name);
 482	new_line_json(config, ctx);
 483}
 484
 485static void print_metricgroup_header_csv(struct perf_stat_config *config,
 486					 void *ctx,
 487					 const char *metricgroup_name)
 488{
 489	struct outstate *os = ctx;
 490	int i;
 491
 492	if (!metricgroup_name) {
 493		/* Leave space for running and enabling */
 494		for (i = 0; i < os->nfields - 2; i++)
 495			fputs(config->csv_sep, os->fh);
 496		return;
 497	}
 498
 499	for (i = 0; i < os->nfields; i++)
 500		fputs(config->csv_sep, os->fh);
 501	fprintf(config->output, "%s", metricgroup_name);
 502	new_line_csv(config, ctx);
 503}
 504
 505static void print_metricgroup_header_std(struct perf_stat_config *config,
 506					 void *ctx,
 507					 const char *metricgroup_name)
 508{
 509	struct outstate *os = ctx;
 510	int n;
 511
 512	if (!metricgroup_name) {
 513		__new_line_std(os);
 514		return;
 515	}
 516
 517	n = fprintf(config->output, " %*s", EVNAME_LEN, metricgroup_name);
 518
 519	fprintf(config->output, "%*s", MGROUP_LEN - n - 1, "");
 520}
 521
 522/* Filter out some columns that don't work well in metrics only mode */
 523
 524static bool valid_only_metric(const char *unit)
 525{
 526	if (!unit)
 527		return false;
 528	if (strstr(unit, "/sec") ||
 529	    strstr(unit, "CPUs utilized"))
 530		return false;
 531	return true;
 532}
 533
 534static const char *fixunit(char *buf, struct evsel *evsel,
 535			   const char *unit)
 536{
 537	if (!strncmp(unit, "of all", 6)) {
 538		snprintf(buf, 1024, "%s %s", evsel__name(evsel),
 539			 unit);
 540		return buf;
 541	}
 542	return unit;
 543}
 544
 545static void print_metric_only(struct perf_stat_config *config,
 546			      void *ctx, const char *color, const char *fmt,
 547			      const char *unit, double val)
 548{
 549	struct outstate *os = ctx;
 550	FILE *out = os->fh;
 551	char buf[1024], str[1024];
 552	unsigned mlen = config->metric_only_len;
 553
 554	if (!valid_only_metric(unit))
 555		return;
 556	unit = fixunit(buf, os->evsel, unit);
 557	if (mlen < strlen(unit))
 558		mlen = strlen(unit) + 1;
 559
 560	if (color)
 561		mlen += strlen(color) + sizeof(PERF_COLOR_RESET) - 1;
 562
 563	color_snprintf(str, sizeof(str), color ?: "", fmt, val);
 564	fprintf(out, "%*s ", mlen, str);
 565	os->first = false;
 566}
 567
 568static void print_metric_only_csv(struct perf_stat_config *config __maybe_unused,
 569				  void *ctx, const char *color __maybe_unused,
 570				  const char *fmt,
 571				  const char *unit, double val)
 572{
 573	struct outstate *os = ctx;
 574	FILE *out = os->fh;
 575	char buf[64], *vals, *ends;
 576	char tbuf[1024];
 577
 578	if (!valid_only_metric(unit))
 579		return;
 580	unit = fixunit(tbuf, os->evsel, unit);
 581	snprintf(buf, sizeof(buf), fmt ?: "", val);
 582	ends = vals = skip_spaces(buf);
 583	while (isdigit(*ends) || *ends == '.')
 584		ends++;
 585	*ends = 0;
 586	fprintf(out, "%s%s", vals, config->csv_sep);
 587	os->first = false;
 588}
 589
 590static void print_metric_only_json(struct perf_stat_config *config __maybe_unused,
 591				  void *ctx, const char *color __maybe_unused,
 592				  const char *fmt,
 593				  const char *unit, double val)
 594{
 595	struct outstate *os = ctx;
 596	FILE *out = os->fh;
 597	char buf[64], *vals, *ends;
 598	char tbuf[1024];
 599
 600	if (!valid_only_metric(unit))
 601		return;
 602	unit = fixunit(tbuf, os->evsel, unit);
 603	snprintf(buf, sizeof(buf), fmt ?: "", val);
 604	ends = vals = skip_spaces(buf);
 605	while (isdigit(*ends) || *ends == '.')
 606		ends++;
 607	*ends = 0;
 608	if (!unit[0] || !vals[0])
 609		return;
 610	fprintf(out, "%s\"%s\" : \"%s\"", os->first ? "" : ", ", unit, vals);
 611	os->first = false;
 612}
 613
 614static void new_line_metric(struct perf_stat_config *config __maybe_unused,
 615			    void *ctx __maybe_unused)
 616{
 617}
 618
 619static void print_metric_header(struct perf_stat_config *config,
 620				void *ctx, const char *color __maybe_unused,
 621				const char *fmt __maybe_unused,
 622				const char *unit, double val __maybe_unused)
 623{
 624	struct outstate *os = ctx;
 625	char tbuf[1024];
 626
 627	/* In case of iostat, print metric header for first root port only */
 628	if (config->iostat_run &&
 629	    os->evsel->priv != os->evsel->evlist->selected->priv)
 630		return;
 631
 632	if (os->evsel->cgrp != os->cgrp)
 633		return;
 634
 635	if (!valid_only_metric(unit))
 636		return;
 637	unit = fixunit(tbuf, os->evsel, unit);
 638
 639	if (config->json_output)
 640		return;
 641	else if (config->csv_output)
 642		fprintf(os->fh, "%s%s", unit, config->csv_sep);
 643	else
 644		fprintf(os->fh, "%*s ", config->metric_only_len, unit);
 645}
 646
 647static void print_counter_value_std(struct perf_stat_config *config,
 648				    struct evsel *evsel, double avg, bool ok)
 649{
 650	FILE *output = config->output;
 651	double sc =  evsel->scale;
 652	const char *fmt;
 653	const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED;
 654
 655	if (config->big_num)
 656		fmt = floor(sc) != sc ? "%'*.2f " : "%'*.0f ";
 657	else
 658		fmt = floor(sc) != sc ? "%*.2f " : "%*.0f ";
 659
 660	if (ok)
 661		fprintf(output, fmt, COUNTS_LEN, avg);
 662	else
 663		fprintf(output, "%*s ", COUNTS_LEN, bad_count);
 664
 665	if (evsel->unit)
 666		fprintf(output, "%-*s ", config->unit_width, evsel->unit);
 667
 668	fprintf(output, "%-*s", EVNAME_LEN, evsel__name(evsel));
 669}
 670
 671static void print_counter_value_csv(struct perf_stat_config *config,
 672				    struct evsel *evsel, double avg, bool ok)
 673{
 674	FILE *output = config->output;
 675	double sc =  evsel->scale;
 676	const char *sep = config->csv_sep;
 677	const char *fmt = floor(sc) != sc ? "%.2f%s" : "%.0f%s";
 678	const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED;
 679
 680	if (ok)
 681		fprintf(output, fmt, avg, sep);
 682	else
 683		fprintf(output, "%s%s", bad_count, sep);
 684
 685	if (evsel->unit)
 686		fprintf(output, "%s%s", evsel->unit, sep);
 687
 688	fprintf(output, "%s", evsel__name(evsel));
 689}
 690
 691static void print_counter_value_json(struct perf_stat_config *config,
 692				     struct evsel *evsel, double avg, bool ok)
 693{
 694	FILE *output = config->output;
 695	const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED;
 696
 697	if (ok)
 698		fprintf(output, "\"counter-value\" : \"%f\", ", avg);
 699	else
 700		fprintf(output, "\"counter-value\" : \"%s\", ", bad_count);
 701
 702	if (evsel->unit)
 703		fprintf(output, "\"unit\" : \"%s\", ", evsel->unit);
 704
 705	fprintf(output, "\"event\" : \"%s\", ", evsel__name(evsel));
 706}
 707
 708static void print_counter_value(struct perf_stat_config *config,
 709				struct evsel *evsel, double avg, bool ok)
 710{
 711	if (config->json_output)
 712		print_counter_value_json(config, evsel, avg, ok);
 713	else if (config->csv_output)
 714		print_counter_value_csv(config, evsel, avg, ok);
 715	else
 716		print_counter_value_std(config, evsel, avg, ok);
 717}
 718
 719static void abs_printout(struct perf_stat_config *config,
 720			 struct aggr_cpu_id id, int aggr_nr,
 721			 struct evsel *evsel, double avg, bool ok)
 722{
 723	aggr_printout(config, evsel, id, aggr_nr);
 724	print_counter_value(config, evsel, avg, ok);
 725	print_cgroup(config, evsel->cgrp);
 726}
 727
 728static bool is_mixed_hw_group(struct evsel *counter)
 729{
 730	struct evlist *evlist = counter->evlist;
 731	u32 pmu_type = counter->core.attr.type;
 732	struct evsel *pos;
 733
 734	if (counter->core.nr_members < 2)
 735		return false;
 736
 737	evlist__for_each_entry(evlist, pos) {
 738		/* software events can be part of any hardware group */
 739		if (pos->core.attr.type == PERF_TYPE_SOFTWARE)
 740			continue;
 741		if (pmu_type == PERF_TYPE_SOFTWARE) {
 742			pmu_type = pos->core.attr.type;
 743			continue;
 744		}
 745		if (pmu_type != pos->core.attr.type)
 746			return true;
 747	}
 748
 749	return false;
 750}
 751
 752static bool evlist__has_hybrid(struct evlist *evlist)
 753{
 754	struct evsel *evsel;
 755
 756	if (perf_pmus__num_core_pmus() == 1)
 757		return false;
 758
 759	evlist__for_each_entry(evlist, evsel) {
 760		if (evsel->core.is_pmu_core)
 761			return true;
 762	}
 763
 764	return false;
 765}
 766
 767static void printout(struct perf_stat_config *config, struct outstate *os,
 768		     double uval, u64 run, u64 ena, double noise, int aggr_idx)
 769{
 770	struct perf_stat_output_ctx out;
 771	print_metric_t pm;
 772	new_line_t nl;
 773	print_metricgroup_header_t pmh;
 774	bool ok = true;
 775	struct evsel *counter = os->evsel;
 776
 777	if (config->csv_output) {
 778		pm = config->metric_only ? print_metric_only_csv : print_metric_csv;
 779		nl = config->metric_only ? new_line_metric : new_line_csv;
 780		pmh = print_metricgroup_header_csv;
 781		os->nfields = 4 + (counter->cgrp ? 1 : 0);
 782	} else if (config->json_output) {
 783		pm = config->metric_only ? print_metric_only_json : print_metric_json;
 784		nl = config->metric_only ? new_line_metric : new_line_json;
 785		pmh = print_metricgroup_header_json;
 786	} else {
 787		pm = config->metric_only ? print_metric_only : print_metric_std;
 788		nl = config->metric_only ? new_line_metric : new_line_std;
 789		pmh = print_metricgroup_header_std;
 790	}
 791
 792	if (run == 0 || ena == 0 || counter->counts->scaled == -1) {
 793		if (config->metric_only) {
 794			pm(config, os, NULL, "", "", 0);
 795			return;
 796		}
 797
 798		ok = false;
 799
 800		if (counter->supported) {
 801			if (!evlist__has_hybrid(counter->evlist)) {
 802				config->print_free_counters_hint = 1;
 803				if (is_mixed_hw_group(counter))
 804					config->print_mixed_hw_group_error = 1;
 805			}
 806		}
 807	}
 808
 809	out.print_metric = pm;
 810	out.new_line = nl;
 811	out.print_metricgroup_header = pmh;
 812	out.ctx = os;
 813	out.force_header = false;
 814
 815	if (!config->metric_only && !counter->default_metricgroup) {
 816		abs_printout(config, os->id, os->aggr_nr, counter, uval, ok);
 817
 818		print_noise(config, counter, noise, /*before_metric=*/true);
 819		print_running(config, run, ena, /*before_metric=*/true);
 820	}
 821
 822	if (ok) {
 823		if (!config->metric_only && counter->default_metricgroup) {
 824			void *from = NULL;
 825
 826			aggr_printout(config, os->evsel, os->id, os->aggr_nr);
 827			/* Print out all the metricgroup with the same metric event. */
 828			do {
 829				int num = 0;
 830
 831				/* Print out the new line for the next new metricgroup. */
 832				if (from) {
 833					if (config->json_output)
 834						new_line_json(config, (void *)os);
 835					else
 836						__new_line_std_csv(config, os);
 837				}
 838
 839				print_noise(config, counter, noise, /*before_metric=*/true);
 840				print_running(config, run, ena, /*before_metric=*/true);
 841				from = perf_stat__print_shadow_stats_metricgroup(config, counter, aggr_idx,
 842										 &num, from, &out,
 843										 &config->metric_events);
 844			} while (from != NULL);
 845		} else
 846			perf_stat__print_shadow_stats(config, counter, uval, aggr_idx,
 847						      &out, &config->metric_events);
 848	} else {
 849		pm(config, os, /*color=*/NULL, /*format=*/NULL, /*unit=*/"", /*val=*/0);
 850	}
 851
 852	if (!config->metric_only) {
 853		print_noise(config, counter, noise, /*before_metric=*/false);
 854		print_running(config, run, ena, /*before_metric=*/false);
 855	}
 856}
 857
 858static void uniquify_event_name(struct evsel *counter)
 859{
 860	char *new_name;
 861	char *config;
 862	int ret = 0;
 863
 864	if (counter->uniquified_name || counter->use_config_name ||
 865	    !counter->pmu_name || !strncmp(evsel__name(counter), counter->pmu_name,
 866					   strlen(counter->pmu_name)))
 867		return;
 868
 869	config = strchr(counter->name, '/');
 870	if (config) {
 871		if (asprintf(&new_name,
 872			     "%s%s", counter->pmu_name, config) > 0) {
 873			free(counter->name);
 874			counter->name = new_name;
 875		}
 876	} else {
 877		if (evsel__is_hybrid(counter)) {
 878			ret = asprintf(&new_name, "%s/%s/",
 879				       counter->pmu_name, counter->name);
 880		} else {
 881			ret = asprintf(&new_name, "%s [%s]",
 882				       counter->name, counter->pmu_name);
 883		}
 884
 885		if (ret) {
 886			free(counter->name);
 887			counter->name = new_name;
 888		}
 889	}
 890
 891	counter->uniquified_name = true;
 892}
 893
 894static bool hybrid_uniquify(struct evsel *evsel, struct perf_stat_config *config)
 895{
 896	return evsel__is_hybrid(evsel) && !config->hybrid_merge;
 897}
 898
 899static void uniquify_counter(struct perf_stat_config *config, struct evsel *counter)
 900{
 901	if (config->aggr_mode == AGGR_NONE || hybrid_uniquify(counter, config))
 902		uniquify_event_name(counter);
 903}
 904
 905/**
 906 * should_skip_zero_count() - Check if the event should print 0 values.
 907 * @config: The perf stat configuration (including aggregation mode).
 908 * @counter: The evsel with its associated cpumap.
 909 * @id: The aggregation id that is being queried.
 910 *
 911 * Due to mismatch between the event cpumap or thread-map and the
 912 * aggregation mode, sometimes it'd iterate the counter with the map
 913 * which does not contain any values.
 914 *
 915 * For example, uncore events have dedicated CPUs to manage them,
 916 * result for other CPUs should be zero and skipped.
 917 *
 918 * Return: %true if the value should NOT be printed, %false if the value
 919 * needs to be printed like "<not counted>" or "<not supported>".
 920 */
 921static bool should_skip_zero_counter(struct perf_stat_config *config,
 922				     struct evsel *counter,
 923				     const struct aggr_cpu_id *id)
 924{
 925	struct perf_cpu cpu;
 926	int idx;
 927
 928	/*
 929	 * Skip value 0 when enabling --per-thread globally,
 930	 * otherwise it will have too many 0 output.
 931	 */
 932	if (config->aggr_mode == AGGR_THREAD && config->system_wide)
 933		return true;
 934
 935	/* Tool events have the software PMU but are only gathered on 1. */
 936	if (evsel__is_tool(counter))
 937		return true;
 938
 939	/*
 940	 * Skip value 0 when it's an uncore event and the given aggr id
 941	 * does not belong to the PMU cpumask.
 942	 */
 943	if (!counter->pmu || !counter->pmu->is_uncore)
 944		return false;
 945
 946	perf_cpu_map__for_each_cpu(cpu, idx, counter->pmu->cpus) {
 947		struct aggr_cpu_id own_id = config->aggr_get_id(config, cpu);
 948
 949		if (aggr_cpu_id__equal(id, &own_id))
 950			return false;
 951	}
 952	return true;
 953}
 954
 955static void print_counter_aggrdata(struct perf_stat_config *config,
 956				   struct evsel *counter, int aggr_idx,
 957				   struct outstate *os)
 958{
 959	FILE *output = config->output;
 960	u64 ena, run, val;
 961	double uval;
 962	struct perf_stat_evsel *ps = counter->stats;
 963	struct perf_stat_aggr *aggr = &ps->aggr[aggr_idx];
 964	struct aggr_cpu_id id = config->aggr_map->map[aggr_idx];
 965	double avg = aggr->counts.val;
 966	bool metric_only = config->metric_only;
 967
 968	os->id = id;
 969	os->aggr_nr = aggr->nr;
 970	os->evsel = counter;
 971
 972	/* Skip already merged uncore/hybrid events */
 973	if (counter->merged_stat)
 974		return;
 975
 976	uniquify_counter(config, counter);
 977
 978	val = aggr->counts.val;
 979	ena = aggr->counts.ena;
 980	run = aggr->counts.run;
 981
 982	if (perf_stat__skip_metric_event(counter, &config->metric_events, ena, run))
 983		return;
 984
 985	if (val == 0 && should_skip_zero_counter(config, counter, &id))
 986		return;
 987
 988	if (!metric_only) {
 989		if (config->json_output)
 990			fputc('{', output);
 991		if (os->prefix)
 992			fprintf(output, "%s", os->prefix);
 993		else if (config->summary && config->csv_output &&
 994			 !config->no_csv_summary && !config->interval)
 995			fprintf(output, "%s%s", "summary", config->csv_sep);
 996	}
 997
 998	uval = val * counter->scale;
 999
1000	printout(config, os, uval, run, ena, avg, aggr_idx);
1001
1002	if (!metric_only)
1003		fputc('\n', output);
1004}
1005
1006static void print_metric_begin(struct perf_stat_config *config,
1007			       struct evlist *evlist,
1008			       struct outstate *os, int aggr_idx)
1009{
1010	struct perf_stat_aggr *aggr;
1011	struct aggr_cpu_id id;
1012	struct evsel *evsel;
1013
1014	os->first = true;
1015	if (!config->metric_only)
1016		return;
1017
1018	if (config->json_output)
1019		fputc('{', config->output);
1020	if (os->prefix)
1021		fprintf(config->output, "%s", os->prefix);
1022
1023	evsel = evlist__first(evlist);
1024	id = config->aggr_map->map[aggr_idx];
1025	aggr = &evsel->stats->aggr[aggr_idx];
1026	aggr_printout(config, evsel, id, aggr->nr);
1027
1028	print_cgroup(config, os->cgrp ? : evsel->cgrp);
1029}
1030
1031static void print_metric_end(struct perf_stat_config *config, struct outstate *os)
1032{
1033	FILE *output = config->output;
1034
1035	if (!config->metric_only)
1036		return;
1037
1038	if (config->json_output) {
1039		if (os->first)
1040			fputs("\"metric-value\" : \"none\"", output);
1041		fputc('}', output);
1042	}
1043	fputc('\n', output);
1044}
1045
1046static void print_aggr(struct perf_stat_config *config,
1047		       struct evlist *evlist,
1048		       struct outstate *os)
1049{
1050	struct evsel *counter;
1051	int aggr_idx;
1052
1053	if (!config->aggr_map || !config->aggr_get_id)
1054		return;
1055
1056	/*
1057	 * With metric_only everything is on a single line.
1058	 * Without each counter has its own line.
1059	 */
1060	cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1061		print_metric_begin(config, evlist, os, aggr_idx);
1062
1063		evlist__for_each_entry(evlist, counter) {
1064			print_counter_aggrdata(config, counter, aggr_idx, os);
1065		}
1066		print_metric_end(config, os);
1067	}
1068}
1069
1070static void print_aggr_cgroup(struct perf_stat_config *config,
1071			      struct evlist *evlist,
1072			      struct outstate *os)
1073{
1074	struct evsel *counter, *evsel;
1075	int aggr_idx;
1076
1077	if (!config->aggr_map || !config->aggr_get_id)
1078		return;
1079
1080	evlist__for_each_entry(evlist, evsel) {
1081		if (os->cgrp == evsel->cgrp)
1082			continue;
1083
1084		os->cgrp = evsel->cgrp;
1085
1086		cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1087			print_metric_begin(config, evlist, os, aggr_idx);
1088
1089			evlist__for_each_entry(evlist, counter) {
1090				if (counter->cgrp != os->cgrp)
1091					continue;
1092
1093				print_counter_aggrdata(config, counter, aggr_idx, os);
1094			}
1095			print_metric_end(config, os);
1096		}
1097	}
1098}
1099
1100static void print_counter(struct perf_stat_config *config,
1101			  struct evsel *counter, struct outstate *os)
1102{
1103	int aggr_idx;
1104
1105	/* AGGR_THREAD doesn't have config->aggr_get_id */
1106	if (!config->aggr_map)
1107		return;
1108
1109	cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1110		print_counter_aggrdata(config, counter, aggr_idx, os);
1111	}
1112}
1113
1114static void print_no_aggr_metric(struct perf_stat_config *config,
1115				 struct evlist *evlist,
1116				 struct outstate *os)
1117{
1118	int all_idx;
1119	struct perf_cpu cpu;
1120
1121	perf_cpu_map__for_each_cpu(cpu, all_idx, evlist->core.user_requested_cpus) {
1122		struct evsel *counter;
1123		bool first = true;
1124
1125		evlist__for_each_entry(evlist, counter) {
1126			u64 ena, run, val;
1127			double uval;
1128			struct perf_stat_evsel *ps = counter->stats;
1129			int aggr_idx = perf_cpu_map__idx(evsel__cpus(counter), cpu);
1130
1131			if (aggr_idx < 0)
1132				continue;
1133
1134			os->evsel = counter;
1135			os->id = aggr_cpu_id__cpu(cpu, /*data=*/NULL);
1136			if (first) {
1137				print_metric_begin(config, evlist, os, aggr_idx);
1138				first = false;
1139			}
1140			val = ps->aggr[aggr_idx].counts.val;
1141			ena = ps->aggr[aggr_idx].counts.ena;
1142			run = ps->aggr[aggr_idx].counts.run;
1143
1144			uval = val * counter->scale;
1145			printout(config, os, uval, run, ena, 1.0, aggr_idx);
1146		}
1147		if (!first)
1148			print_metric_end(config, os);
1149	}
1150}
1151
1152static void print_metric_headers_std(struct perf_stat_config *config,
1153				     bool no_indent)
1154{
1155	fputc(' ', config->output);
1156
1157	if (!no_indent) {
1158		int len = aggr_header_lens[config->aggr_mode];
1159
1160		if (nr_cgroups || config->cgroup_list)
1161			len += CGROUP_LEN + 1;
1162
1163		fprintf(config->output, "%*s", len, "");
1164	}
1165}
1166
1167static void print_metric_headers_csv(struct perf_stat_config *config,
1168				     bool no_indent __maybe_unused)
1169{
1170	if (config->interval)
1171		fputs("time,", config->output);
1172	if (!config->iostat_run)
1173		fputs(aggr_header_csv[config->aggr_mode], config->output);
1174}
1175
1176static void print_metric_headers_json(struct perf_stat_config *config __maybe_unused,
1177				      bool no_indent __maybe_unused)
1178{
1179}
1180
1181static void print_metric_headers(struct perf_stat_config *config,
1182				 struct evlist *evlist, bool no_indent)
1183{
1184	struct evsel *counter;
1185	struct outstate os = {
1186		.fh = config->output
1187	};
1188	struct perf_stat_output_ctx out = {
1189		.ctx = &os,
1190		.print_metric = print_metric_header,
1191		.new_line = new_line_metric,
1192		.force_header = true,
1193	};
1194
1195	if (config->json_output)
1196		print_metric_headers_json(config, no_indent);
1197	else if (config->csv_output)
1198		print_metric_headers_csv(config, no_indent);
1199	else
1200		print_metric_headers_std(config, no_indent);
1201
1202	if (config->iostat_run)
1203		iostat_print_header_prefix(config);
1204
1205	if (config->cgroup_list)
1206		os.cgrp = evlist__first(evlist)->cgrp;
1207
1208	/* Print metrics headers only */
1209	evlist__for_each_entry(evlist, counter) {
1210		os.evsel = counter;
1211
1212		perf_stat__print_shadow_stats(config, counter, 0,
1213					      0,
1214					      &out,
1215					      &config->metric_events);
1216	}
1217
1218	if (!config->json_output)
1219		fputc('\n', config->output);
1220}
1221
1222static void prepare_interval(struct perf_stat_config *config,
1223			     char *prefix, size_t len, struct timespec *ts)
1224{
1225	if (config->iostat_run)
1226		return;
1227
1228	if (config->json_output)
1229		scnprintf(prefix, len, "\"interval\" : %lu.%09lu, ",
1230			  (unsigned long) ts->tv_sec, ts->tv_nsec);
1231	else if (config->csv_output)
1232		scnprintf(prefix, len, "%lu.%09lu%s",
1233			  (unsigned long) ts->tv_sec, ts->tv_nsec, config->csv_sep);
1234	else
1235		scnprintf(prefix, len, "%6lu.%09lu ",
1236			  (unsigned long) ts->tv_sec, ts->tv_nsec);
1237}
1238
1239static void print_header_interval_std(struct perf_stat_config *config,
1240				      struct target *_target __maybe_unused,
1241				      struct evlist *evlist,
1242				      int argc __maybe_unused,
1243				      const char **argv __maybe_unused)
1244{
1245	FILE *output = config->output;
1246
1247	switch (config->aggr_mode) {
1248	case AGGR_NODE:
1249	case AGGR_SOCKET:
1250	case AGGR_DIE:
1251	case AGGR_CACHE:
1252	case AGGR_CORE:
1253		fprintf(output, "#%*s %-*s cpus",
1254			INTERVAL_LEN - 1, "time",
1255			aggr_header_lens[config->aggr_mode],
1256			aggr_header_std[config->aggr_mode]);
1257		break;
1258	case AGGR_NONE:
1259		fprintf(output, "#%*s %-*s",
1260			INTERVAL_LEN - 1, "time",
1261			aggr_header_lens[config->aggr_mode],
1262			aggr_header_std[config->aggr_mode]);
1263		break;
1264	case AGGR_THREAD:
1265		fprintf(output, "#%*s %*s-%-*s",
1266			INTERVAL_LEN - 1, "time",
1267			COMM_LEN, "comm", PID_LEN, "pid");
1268		break;
1269	case AGGR_GLOBAL:
1270	default:
1271		if (!config->iostat_run)
1272			fprintf(output, "#%*s",
1273				INTERVAL_LEN - 1, "time");
1274	case AGGR_UNSET:
1275	case AGGR_MAX:
1276		break;
1277	}
1278
1279	if (config->metric_only)
1280		print_metric_headers(config, evlist, true);
1281	else
1282		fprintf(output, " %*s %*s events\n",
1283			COUNTS_LEN, "counts", config->unit_width, "unit");
1284}
1285
1286static void print_header_std(struct perf_stat_config *config,
1287			     struct target *_target, struct evlist *evlist,
1288			     int argc, const char **argv)
1289{
1290	FILE *output = config->output;
1291	int i;
1292
1293	fprintf(output, "\n");
1294	fprintf(output, " Performance counter stats for ");
1295	if (_target->bpf_str)
1296		fprintf(output, "\'BPF program(s) %s", _target->bpf_str);
1297	else if (_target->system_wide)
1298		fprintf(output, "\'system wide");
1299	else if (_target->cpu_list)
1300		fprintf(output, "\'CPU(s) %s", _target->cpu_list);
1301	else if (!target__has_task(_target)) {
1302		fprintf(output, "\'%s", argv ? argv[0] : "pipe");
1303		for (i = 1; argv && (i < argc); i++)
1304			fprintf(output, " %s", argv[i]);
1305	} else if (_target->pid)
1306		fprintf(output, "process id \'%s", _target->pid);
1307	else
1308		fprintf(output, "thread id \'%s", _target->tid);
1309
1310	fprintf(output, "\'");
1311	if (config->run_count > 1)
1312		fprintf(output, " (%d runs)", config->run_count);
1313	fprintf(output, ":\n\n");
1314
1315	if (config->metric_only)
1316		print_metric_headers(config, evlist, false);
1317}
1318
1319static void print_header_csv(struct perf_stat_config *config,
1320			     struct target *_target __maybe_unused,
1321			     struct evlist *evlist,
1322			     int argc __maybe_unused,
1323			     const char **argv __maybe_unused)
1324{
1325	if (config->metric_only)
1326		print_metric_headers(config, evlist, true);
1327}
1328static void print_header_json(struct perf_stat_config *config,
1329			      struct target *_target __maybe_unused,
1330			      struct evlist *evlist,
1331			      int argc __maybe_unused,
1332			      const char **argv __maybe_unused)
1333{
1334	if (config->metric_only)
1335		print_metric_headers(config, evlist, true);
1336}
1337
1338static void print_header(struct perf_stat_config *config,
1339			 struct target *_target,
1340			 struct evlist *evlist,
1341			 int argc, const char **argv)
1342{
1343	static int num_print_iv;
1344
1345	fflush(stdout);
1346
1347	if (config->interval_clear)
1348		puts(CONSOLE_CLEAR);
1349
1350	if (num_print_iv == 0 || config->interval_clear) {
1351		if (config->json_output)
1352			print_header_json(config, _target, evlist, argc, argv);
1353		else if (config->csv_output)
1354			print_header_csv(config, _target, evlist, argc, argv);
1355		else if (config->interval)
1356			print_header_interval_std(config, _target, evlist, argc, argv);
1357		else
1358			print_header_std(config, _target, evlist, argc, argv);
1359	}
1360
1361	if (num_print_iv++ == 25)
1362		num_print_iv = 0;
1363}
1364
1365static int get_precision(double num)
1366{
1367	if (num > 1)
1368		return 0;
1369
1370	return lround(ceil(-log10(num)));
1371}
1372
1373static void print_table(struct perf_stat_config *config,
1374			FILE *output, int precision, double avg)
1375{
1376	char tmp[64];
1377	int idx, indent = 0;
1378
1379	scnprintf(tmp, 64, " %17.*f", precision, avg);
1380	while (tmp[indent] == ' ')
1381		indent++;
1382
1383	fprintf(output, "%*s# Table of individual measurements:\n", indent, "");
1384
1385	for (idx = 0; idx < config->run_count; idx++) {
1386		double run = (double) config->walltime_run[idx] / NSEC_PER_SEC;
1387		int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5);
1388
1389		fprintf(output, " %17.*f (%+.*f) ",
1390			precision, run, precision, run - avg);
1391
1392		for (h = 0; h < n; h++)
1393			fprintf(output, "#");
1394
1395		fprintf(output, "\n");
1396	}
1397
1398	fprintf(output, "\n%*s# Final result:\n", indent, "");
1399}
1400
1401static double timeval2double(struct timeval *t)
1402{
1403	return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC;
1404}
1405
1406static void print_footer(struct perf_stat_config *config)
1407{
1408	double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1409	FILE *output = config->output;
1410
1411	if (config->interval || config->csv_output || config->json_output)
1412		return;
1413
1414	if (!config->null_run)
1415		fprintf(output, "\n");
1416
1417	if (config->run_count == 1) {
1418		fprintf(output, " %17.9f seconds time elapsed", avg);
1419
1420		if (config->ru_display) {
1421			double ru_utime = timeval2double(&config->ru_data.ru_utime);
1422			double ru_stime = timeval2double(&config->ru_data.ru_stime);
1423
1424			fprintf(output, "\n\n");
1425			fprintf(output, " %17.9f seconds user\n", ru_utime);
1426			fprintf(output, " %17.9f seconds sys\n", ru_stime);
1427		}
1428	} else {
1429		double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1430		/*
1431		 * Display at most 2 more significant
1432		 * digits than the stddev inaccuracy.
1433		 */
1434		int precision = get_precision(sd) + 2;
1435
1436		if (config->walltime_run_table)
1437			print_table(config, output, precision, avg);
1438
1439		fprintf(output, " %17.*f +- %.*f seconds time elapsed",
1440			precision, avg, precision, sd);
1441
1442		print_noise_pct(config, sd, avg, /*before_metric=*/false);
1443	}
1444	fprintf(output, "\n\n");
1445
1446	if (config->print_free_counters_hint && sysctl__nmi_watchdog_enabled())
1447		fprintf(output,
1448"Some events weren't counted. Try disabling the NMI watchdog:\n"
1449"	echo 0 > /proc/sys/kernel/nmi_watchdog\n"
1450"	perf stat ...\n"
1451"	echo 1 > /proc/sys/kernel/nmi_watchdog\n");
1452
1453	if (config->print_mixed_hw_group_error)
1454		fprintf(output,
1455			"The events in group usually have to be from "
1456			"the same PMU. Try reorganizing the group.\n");
1457}
1458
1459static void print_percore(struct perf_stat_config *config,
1460			  struct evsel *counter, struct outstate *os)
1461{
1462	bool metric_only = config->metric_only;
1463	FILE *output = config->output;
1464	struct cpu_aggr_map *core_map;
1465	int aggr_idx, core_map_len = 0;
1466
1467	if (!config->aggr_map || !config->aggr_get_id)
1468		return;
1469
1470	if (config->percore_show_thread)
1471		return print_counter(config, counter, os);
1472
1473	/*
1474	 * core_map will hold the aggr_cpu_id for the cores that have been
1475	 * printed so that each core is printed just once.
1476	 */
1477	core_map = cpu_aggr_map__empty_new(config->aggr_map->nr);
1478	if (core_map == NULL) {
1479		fprintf(output, "Cannot allocate per-core aggr map for display\n");
1480		return;
1481	}
1482
1483	cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1484		struct perf_cpu curr_cpu = config->aggr_map->map[aggr_idx].cpu;
1485		struct aggr_cpu_id core_id = aggr_cpu_id__core(curr_cpu, NULL);
1486		bool found = false;
1487
1488		for (int i = 0; i < core_map_len; i++) {
1489			if (aggr_cpu_id__equal(&core_map->map[i], &core_id)) {
1490				found = true;
1491				break;
1492			}
1493		}
1494		if (found)
1495			continue;
1496
1497		print_counter_aggrdata(config, counter, aggr_idx, os);
1498
1499		core_map->map[core_map_len++] = core_id;
1500	}
1501	free(core_map);
1502
1503	if (metric_only)
1504		fputc('\n', output);
1505}
1506
1507static void print_cgroup_counter(struct perf_stat_config *config, struct evlist *evlist,
1508				 struct outstate *os)
1509{
1510	struct evsel *counter;
1511
1512	evlist__for_each_entry(evlist, counter) {
1513		if (os->cgrp != counter->cgrp) {
1514			if (os->cgrp != NULL)
1515				print_metric_end(config, os);
1516
1517			os->cgrp = counter->cgrp;
1518			print_metric_begin(config, evlist, os, /*aggr_idx=*/0);
1519		}
1520
1521		print_counter(config, counter, os);
1522	}
1523	if (os->cgrp)
1524		print_metric_end(config, os);
1525}
1526
1527void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
1528			    struct target *_target, struct timespec *ts,
1529			    int argc, const char **argv)
1530{
1531	bool metric_only = config->metric_only;
1532	int interval = config->interval;
1533	struct evsel *counter;
1534	char buf[64];
1535	struct outstate os = {
1536		.fh = config->output,
1537		.first = true,
1538	};
1539
1540	if (config->iostat_run)
1541		evlist->selected = evlist__first(evlist);
1542
1543	if (interval) {
1544		os.prefix = buf;
1545		prepare_interval(config, buf, sizeof(buf), ts);
1546	}
1547
1548	print_header(config, _target, evlist, argc, argv);
1549
1550	switch (config->aggr_mode) {
1551	case AGGR_CORE:
1552	case AGGR_CACHE:
1553	case AGGR_DIE:
1554	case AGGR_SOCKET:
1555	case AGGR_NODE:
1556		if (config->cgroup_list)
1557			print_aggr_cgroup(config, evlist, &os);
1558		else
1559			print_aggr(config, evlist, &os);
1560		break;
1561	case AGGR_THREAD:
1562	case AGGR_GLOBAL:
1563		if (config->iostat_run) {
1564			iostat_print_counters(evlist, config, ts, buf,
1565					      (iostat_print_counter_t)print_counter, &os);
1566		} else if (config->cgroup_list) {
1567			print_cgroup_counter(config, evlist, &os);
1568		} else {
1569			print_metric_begin(config, evlist, &os, /*aggr_idx=*/0);
1570			evlist__for_each_entry(evlist, counter) {
1571				print_counter(config, counter, &os);
1572			}
1573			print_metric_end(config, &os);
1574		}
1575		break;
1576	case AGGR_NONE:
1577		if (metric_only)
1578			print_no_aggr_metric(config, evlist, &os);
1579		else {
1580			evlist__for_each_entry(evlist, counter) {
1581				if (counter->percore)
1582					print_percore(config, counter, &os);
1583				else
1584					print_counter(config, counter, &os);
1585			}
1586		}
1587		break;
1588	case AGGR_MAX:
1589	case AGGR_UNSET:
1590	default:
1591		break;
1592	}
1593
1594	print_footer(config);
1595
1596	fflush(config->output);
1597}