tools/perf/util/stat-display.c

   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
  38 static int aggr_header_lens[] = {
  39         [AGGR_CORE]     = 18,
  40         [AGGR_CACHE]    = 22,
  41         [AGGR_CLUSTER]  = 20,
  42         [AGGR_DIE]      = 12,
  43         [AGGR_SOCKET]   = 6,
  44         [AGGR_NODE]     = 6,
  45         [AGGR_NONE]     = 6,
  46         [AGGR_THREAD]   = 16,
  47         [AGGR_GLOBAL]   = 0,
  48 };
  49
  50 static const char *aggr_header_csv[] = {
  51         [AGGR_CORE]     =       "core,cpus,",
  52         [AGGR_CACHE]    =       "cache,cpus,",
  53         [AGGR_CLUSTER]  =       "cluster,cpus,",
  54         [AGGR_DIE]      =       "die,cpus,",
  55         [AGGR_SOCKET]   =       "socket,cpus,",
  56         [AGGR_NONE]     =       "cpu,",
  57         [AGGR_THREAD]   =       "comm-pid,",
  58         [AGGR_NODE]     =       "node,",
  59         [AGGR_GLOBAL]   =       ""
  60 };
  61
  62 static const char *aggr_header_std[] = {
  63         [AGGR_CORE]     =       "core",
  64         [AGGR_CACHE]    =       "cache",
  65         [AGGR_CLUSTER]  =       "cluster",
  66         [AGGR_DIE]      =       "die",
  67         [AGGR_SOCKET]   =       "socket",
  68         [AGGR_NONE]     =       "cpu",
  69         [AGGR_THREAD]   =       "comm-pid",
  70         [AGGR_NODE]     =       "node",
  71         [AGGR_GLOBAL]   =       ""
  72 };
  73
  74 static void print_running_std(struct perf_stat_config *config, u64 run, u64 ena)
  75 {
  76         if (run != ena)
  77                 fprintf(config->output, "  (%.2f%%)", 100.0 * run / ena);
  78 }
  79
  80 static void print_running_csv(struct perf_stat_config *config, u64 run, u64 ena)
  81 {
  82         double enabled_percent = 100;
  83
  84         if (run != ena)
  85                 enabled_percent = 100 * run / ena;
  86         fprintf(config->output, "%s%" PRIu64 "%s%.2f",
  87                 config->csv_sep, run, config->csv_sep, enabled_percent);
  88 }
  89
  90 static void print_running_json(struct perf_stat_config *config, u64 run, u64 ena)
  91 {
  92         double enabled_percent = 100;
  93
  94         if (run != ena)
  95                 enabled_percent = 100 * run / ena;
  96         fprintf(config->output, "\"event-runtime\" : %" PRIu64 ", \"pcnt-running\" : %.2f, ",
  97                 run, enabled_percent);
  98 }
  99
 100 static void print_running(struct perf_stat_config *config,
 101                           u64 run, u64 ena, bool before_metric)
 102 {
 103         if (config->json_output) {
 104                 if (before_metric)
 105                         print_running_json(config, run, ena);
 106         } else if (config->csv_output) {
 107                 if (before_metric)
 108                         print_running_csv(config, run, ena);
 109         } else {
 110                 if (!before_metric)
 111                         print_running_std(config, run, ena);
 112         }
 113 }
 114
 115 static void print_noise_pct_std(struct perf_stat_config *config,
 116                                 double pct)
 117 {
 118         if (pct)
 119                 fprintf(config->output, "  ( +-%6.2f%% )", pct);
 120 }
 121
 122 static void print_noise_pct_csv(struct perf_stat_config *config,
 123                                 double pct)
 124 {
 125         fprintf(config->output, "%s%.2f%%", config->csv_sep, pct);
 126 }
 127
 128 static void print_noise_pct_json(struct perf_stat_config *config,
 129                                  double pct)
 130 {
 131         fprintf(config->output, "\"variance\" : %.2f, ", pct);
 132 }
 133
 134 static void print_noise_pct(struct perf_stat_config *config,
 135                             double total, double avg, bool before_metric)
 136 {
 137         double pct = rel_stddev_stats(total, avg);
 138
 139         if (config->json_output) {
 140                 if (before_metric)
 141                         print_noise_pct_json(config, pct);
 142         } else if (config->csv_output) {
 143                 if (before_metric)
 144                         print_noise_pct_csv(config, pct);
 145         } else {
 146                 if (!before_metric)
 147                         print_noise_pct_std(config, pct);
 148         }
 149 }
 150
 151 static void print_noise(struct perf_stat_config *config,
 152                         struct evsel *evsel, double avg, bool before_metric)
 153 {
 154         struct perf_stat_evsel *ps;
 155
 156         if (config->run_count == 1)
 157                 return;
 158
 159         ps = evsel->stats;
 160         print_noise_pct(config, stddev_stats(&ps->res_stats), avg, before_metric);
 161 }
 162
 163 static void print_cgroup_std(struct perf_stat_config *config, const char *cgrp_name)
 164 {
 165         fprintf(config->output, " %-*s", CGROUP_LEN, cgrp_name);
 166 }
 167
 168 static void print_cgroup_csv(struct perf_stat_config *config, const char *cgrp_name)
 169 {
 170         fprintf(config->output, "%s%s", config->csv_sep, cgrp_name);
 171 }
 172
 173 static void print_cgroup_json(struct perf_stat_config *config, const char *cgrp_name)
 174 {
 175         fprintf(config->output, "\"cgroup\" : \"%s\", ", cgrp_name);
 176 }
 177
 178 static void print_cgroup(struct perf_stat_config *config, struct cgroup *cgrp)
 179 {
 180         if (nr_cgroups || config->cgroup_list) {
 181                 const char *cgrp_name = cgrp ? cgrp->name  : "";
 182
 183                 if (config->json_output)
 184                         print_cgroup_json(config, cgrp_name);
 185                 else if (config->csv_output)
 186                         print_cgroup_csv(config, cgrp_name);
 187                 else
 188                         print_cgroup_std(config, cgrp_name);
 189         }
 190 }
 191
 192 static void print_aggr_id_std(struct perf_stat_config *config,
 193                               struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
 194 {
 195         FILE *output = config->output;
 196         int idx = config->aggr_mode;
 197         char buf[128];
 198
 199         switch (config->aggr_mode) {
 200         case AGGR_CORE:
 201                 snprintf(buf, sizeof(buf), "S%d-D%d-C%d", id.socket, id.die, id.core);
 202                 break;
 203         case AGGR_CACHE:
 204                 snprintf(buf, sizeof(buf), "S%d-D%d-L%d-ID%d",
 205                          id.socket, id.die, id.cache_lvl, id.cache);
 206                 break;
 207         case AGGR_CLUSTER:
 208                 snprintf(buf, sizeof(buf), "S%d-D%d-CLS%d", id.socket, id.die, id.cluster);
 209                 break;
 210         case AGGR_DIE:
 211                 snprintf(buf, sizeof(buf), "S%d-D%d", id.socket, id.die);
 212                 break;
 213         case AGGR_SOCKET:
 214                 snprintf(buf, sizeof(buf), "S%d", id.socket);
 215                 break;
 216         case AGGR_NODE:
 217                 snprintf(buf, sizeof(buf), "N%d", id.node);
 218                 break;
 219         case AGGR_NONE:
 220                 if (evsel->percore && !config->percore_show_thread) {
 221                         snprintf(buf, sizeof(buf), "S%d-D%d-C%d ",
 222                                 id.socket, id.die, id.core);
 223                         fprintf(output, "%-*s ",
 224                                 aggr_header_lens[AGGR_CORE], buf);
 225                 } else if (id.cpu.cpu > -1) {
 226                         fprintf(output, "CPU%-*d ",
 227                                 aggr_header_lens[AGGR_NONE] - 3, id.cpu.cpu);
 228                 }
 229                 return;
 230         case AGGR_THREAD:
 231                 fprintf(output, "%*s-%-*d ",
 232                         COMM_LEN, perf_thread_map__comm(evsel->core.threads, id.thread_idx),
 233                         PID_LEN, perf_thread_map__pid(evsel->core.threads, id.thread_idx));
 234                 return;
 235         case AGGR_GLOBAL:
 236         case AGGR_UNSET:
 237         case AGGR_MAX:
 238         default:
 239                 return;
 240         }
 241
 242         fprintf(output, "%-*s %*d ", aggr_header_lens[idx], buf, 4, aggr_nr);
 243 }
 244
 245 static void print_aggr_id_csv(struct perf_stat_config *config,
 246                               struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
 247 {
 248         FILE *output = config->output;
 249         const char *sep = config->csv_sep;
 250
 251         switch (config->aggr_mode) {
 252         case AGGR_CORE:
 253                 fprintf(output, "S%d-D%d-C%d%s%d%s",
 254                         id.socket, id.die, id.core, sep, aggr_nr, sep);
 255                 break;
 256         case AGGR_CACHE:
 257                 fprintf(config->output, "S%d-D%d-L%d-ID%d%s%d%s",
 258                         id.socket, id.die, id.cache_lvl, id.cache, sep, aggr_nr, sep);
 259                 break;
 260         case AGGR_CLUSTER:
 261                 fprintf(config->output, "S%d-D%d-CLS%d%s%d%s",
 262                         id.socket, id.die, id.cluster, sep, aggr_nr, sep);
 263                 break;
 264         case AGGR_DIE:
 265                 fprintf(output, "S%d-D%d%s%d%s",
 266                         id.socket, id.die, sep, aggr_nr, sep);
 267                 break;
 268         case AGGR_SOCKET:
 269                 fprintf(output, "S%d%s%d%s",
 270                         id.socket, sep, aggr_nr, sep);
 271                 break;
 272         case AGGR_NODE:
 273                 fprintf(output, "N%d%s%d%s",
 274                         id.node, sep, aggr_nr, sep);
 275                 break;
 276         case AGGR_NONE:
 277                 if (evsel->percore && !config->percore_show_thread) {
 278                         fprintf(output, "S%d-D%d-C%d%s",
 279                                 id.socket, id.die, id.core, sep);
 280                 } else if (id.cpu.cpu > -1) {
 281                         fprintf(output, "CPU%d%s",
 282                                 id.cpu.cpu, sep);
 283                 }
 284                 break;
 285         case AGGR_THREAD:
 286                 fprintf(output, "%s-%d%s",
 287                         perf_thread_map__comm(evsel->core.threads, id.thread_idx),
 288                         perf_thread_map__pid(evsel->core.threads, id.thread_idx),
 289                         sep);
 290                 break;
 291         case AGGR_GLOBAL:
 292         case AGGR_UNSET:
 293         case AGGR_MAX:
 294         default:
 295                 break;
 296         }
 297 }
 298
 299 static void print_aggr_id_json(struct perf_stat_config *config,
 300                                struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
 301 {
 302         FILE *output = config->output;
 303
 304         switch (config->aggr_mode) {
 305         case AGGR_CORE:
 306                 fprintf(output, "\"core\" : \"S%d-D%d-C%d\", \"aggregate-number\" : %d, ",
 307                         id.socket, id.die, id.core, aggr_nr);
 308                 break;
 309         case AGGR_CACHE:
 310                 fprintf(output, "\"cache\" : \"S%d-D%d-L%d-ID%d\", \"aggregate-number\" : %d, ",
 311                         id.socket, id.die, id.cache_lvl, id.cache, aggr_nr);
 312                 break;
 313         case AGGR_CLUSTER:
 314                 fprintf(output, "\"cluster\" : \"S%d-D%d-CLS%d\", \"aggregate-number\" : %d, ",
 315                         id.socket, id.die, id.cluster, aggr_nr);
 316                 break;
 317         case AGGR_DIE:
 318                 fprintf(output, "\"die\" : \"S%d-D%d\", \"aggregate-number\" : %d, ",
 319                         id.socket, id.die, aggr_nr);
 320                 break;
 321         case AGGR_SOCKET:
 322                 fprintf(output, "\"socket\" : \"S%d\", \"aggregate-number\" : %d, ",
 323                         id.socket, aggr_nr);
 324                 break;
 325         case AGGR_NODE:
 326                 fprintf(output, "\"node\" : \"N%d\", \"aggregate-number\" : %d, ",
 327                         id.node, aggr_nr);
 328                 break;
 329         case AGGR_NONE:
 330                 if (evsel->percore && !config->percore_show_thread) {
 331                         fprintf(output, "\"core\" : \"S%d-D%d-C%d\"",
 332                                 id.socket, id.die, id.core);
 333                 } else if (id.cpu.cpu > -1) {
 334                         fprintf(output, "\"cpu\" : \"%d\", ",
 335                                 id.cpu.cpu);
 336                 }
 337                 break;
 338         case AGGR_THREAD:
 339                 fprintf(output, "\"thread\" : \"%s-%d\", ",
 340                         perf_thread_map__comm(evsel->core.threads, id.thread_idx),
 341                         perf_thread_map__pid(evsel->core.threads, id.thread_idx));
 342                 break;
 343         case AGGR_GLOBAL:
 344         case AGGR_UNSET:
 345         case AGGR_MAX:
 346         default:
 347                 break;
 348         }
 349 }
 350
 351 static void aggr_printout(struct perf_stat_config *config,
 352                           struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
 353 {
 354         if (config->json_output)
 355                 print_aggr_id_json(config, evsel, id, aggr_nr);
 356         else if (config->csv_output)
 357                 print_aggr_id_csv(config, evsel, id, aggr_nr);
 358         else
 359                 print_aggr_id_std(config, evsel, id, aggr_nr);
 360 }
 361
 362 struct outstate {
 363         FILE *fh;
 364         bool newline;
 365         bool first;
 366         const char *prefix;
 367         int  nfields;
 368         int  aggr_nr;
 369         struct aggr_cpu_id id;
 370         struct evsel *evsel;
 371         struct cgroup *cgrp;
 372 };
 373
 374 static void new_line_std(struct perf_stat_config *config __maybe_unused,
 375                          void *ctx)
 376 {
 377         struct outstate *os = ctx;
 378
 379         os->newline = true;
 380 }
 381
 382 static inline void __new_line_std_csv(struct perf_stat_config *config,
 383                                       struct outstate *os)
 384 {
 385         fputc('\n', os->fh);
 386         if (os->prefix)
 387                 fputs(os->prefix, os->fh);
 388         aggr_printout(config, os->evsel, os->id, os->aggr_nr);
 389 }
 390
 391 static inline void __new_line_std(struct outstate *os)
 392 {
 393         fprintf(os->fh, "                                                 ");
 394 }
 395
 396 static void do_new_line_std(struct perf_stat_config *config,
 397                             struct outstate *os)
 398 {
 399         __new_line_std_csv(config, os);
 400         if (config->aggr_mode == AGGR_NONE)
 401                 fprintf(os->fh, "        ");
 402         __new_line_std(os);
 403 }
 404
 405 static void print_metric_std(struct perf_stat_config *config,
 406                              void *ctx, const char *color, const char *fmt,
 407                              const char *unit, double val)
 408 {
 409         struct outstate *os = ctx;
 410         FILE *out = os->fh;
 411         int n;
 412         bool newline = os->newline;
 413
 414         os->newline = false;
 415
 416         if (unit == NULL || fmt == NULL) {
 417                 fprintf(out, "%-*s", METRIC_LEN, "");
 418                 return;
 419         }
 420
 421         if (newline)
 422                 do_new_line_std(config, os);
 423
 424         n = fprintf(out, " # ");
 425         if (color)
 426                 n += color_fprintf(out, color, fmt, val);
 427         else
 428                 n += fprintf(out, fmt, val);
 429         fprintf(out, " %-*s", METRIC_LEN - n - 1, unit);
 430 }
 431
 432 static void new_line_csv(struct perf_stat_config *config, void *ctx)
 433 {
 434         struct outstate *os = ctx;
 435         int i;
 436
 437         __new_line_std_csv(config, os);
 438         for (i = 0; i < os->nfields; i++)
 439                 fputs(config->csv_sep, os->fh);
 440 }
 441
 442 static void print_metric_csv(struct perf_stat_config *config __maybe_unused,
 443                              void *ctx,
 444                              const char *color __maybe_unused,
 445                              const char *fmt, const char *unit, double val)
 446 {
 447         struct outstate *os = ctx;
 448         FILE *out = os->fh;
 449         char buf[64], *vals, *ends;
 450
 451         if (unit == NULL || fmt == NULL) {
 452                 fprintf(out, "%s%s", config->csv_sep, config->csv_sep);
 453                 return;
 454         }
 455         snprintf(buf, sizeof(buf), fmt, val);
 456         ends = vals = skip_spaces(buf);
 457         while (isdigit(*ends) || *ends == '.')
 458                 ends++;
 459         *ends = 0;
 460         fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, skip_spaces(unit));
 461 }
 462
 463 static void print_metric_json(struct perf_stat_config *config __maybe_unused,
 464                              void *ctx,
 465                              const char *color __maybe_unused,
 466                              const char *fmt __maybe_unused,
 467                              const char *unit, double val)
 468 {
 469         struct outstate *os = ctx;
 470         FILE *out = os->fh;
 471
 472         fprintf(out, "\"metric-value\" : \"%f\", ", val);
 473         fprintf(out, "\"metric-unit\" : \"%s\"", unit);
 474         if (!config->metric_only)
 475                 fprintf(out, "}");
 476 }
 477
 478 static void new_line_json(struct perf_stat_config *config, void *ctx)
 479 {
 480         struct outstate *os = ctx;
 481
 482         fputs("\n{", os->fh);
 483         if (os->prefix)
 484                 fprintf(os->fh, "%s", os->prefix);
 485         aggr_printout(config, os->evsel, os->id, os->aggr_nr);
 486 }
 487
 488 static void print_metricgroup_header_json(struct perf_stat_config *config,
 489                                           void *ctx,
 490                                           const char *metricgroup_name)
 491 {
 492         if (!metricgroup_name)
 493                 return;
 494
 495         fprintf(config->output, "\"metricgroup\" : \"%s\"}", metricgroup_name);
 496         new_line_json(config, ctx);
 497 }
 498
 499 static void print_metricgroup_header_csv(struct perf_stat_config *config,
 500                                          void *ctx,
 501                                          const char *metricgroup_name)
 502 {
 503         struct outstate *os = ctx;
 504         int i;
 505
 506         if (!metricgroup_name) {
 507                 /* Leave space for running and enabling */
 508                 for (i = 0; i < os->nfields - 2; i++)
 509                         fputs(config->csv_sep, os->fh);
 510                 return;
 511         }
 512
 513         for (i = 0; i < os->nfields; i++)
 514                 fputs(config->csv_sep, os->fh);
 515         fprintf(config->output, "%s", metricgroup_name);
 516         new_line_csv(config, ctx);
 517 }
 518
 519 static void print_metricgroup_header_std(struct perf_stat_config *config,
 520                                          void *ctx,
 521                                          const char *metricgroup_name)
 522 {
 523         struct outstate *os = ctx;
 524         int n;
 525
 526         if (!metricgroup_name) {
 527                 __new_line_std(os);
 528                 return;
 529         }
 530
 531         n = fprintf(config->output, " %*s", EVNAME_LEN, metricgroup_name);
 532
 533         fprintf(config->output, "%*s", MGROUP_LEN - n - 1, "");
 534 }
 535
 536 /* Filter out some columns that don't work well in metrics only mode */
 537
 538 static bool valid_only_metric(const char *unit)
 539 {
 540         if (!unit)
 541                 return false;
 542         if (strstr(unit, "/sec") ||
 543             strstr(unit, "CPUs utilized"))
 544                 return false;
 545         return true;
 546 }
 547
 548 static const char *fixunit(char *buf, struct evsel *evsel,
 549                            const char *unit)
 550 {
 551         if (!strncmp(unit, "of all", 6)) {
 552                 snprintf(buf, 1024, "%s %s", evsel__name(evsel),
 553                          unit);
 554                 return buf;
 555         }
 556         return unit;
 557 }
 558
 559 static void print_metric_only(struct perf_stat_config *config,
 560                               void *ctx, const char *color, const char *fmt,
 561                               const char *unit, double val)
 562 {
 563         struct outstate *os = ctx;
 564         FILE *out = os->fh;
 565         char buf[1024], str[1024];
 566         unsigned mlen = config->metric_only_len;
 567
 568         if (!valid_only_metric(unit))
 569                 return;
 570         unit = fixunit(buf, os->evsel, unit);
 571         if (mlen < strlen(unit))
 572                 mlen = strlen(unit) + 1;
 573
 574         if (color)
 575                 mlen += strlen(color) + sizeof(PERF_COLOR_RESET) - 1;
 576
 577         color_snprintf(str, sizeof(str), color ?: "", fmt ?: "", val);
 578         fprintf(out, "%*s ", mlen, str);
 579         os->first = false;
 580 }
 581
 582 static void print_metric_only_csv(struct perf_stat_config *config __maybe_unused,
 583                                   void *ctx, const char *color __maybe_unused,
 584                                   const char *fmt,
 585                                   const char *unit, double val)
 586 {
 587         struct outstate *os = ctx;
 588         FILE *out = os->fh;
 589         char buf[64], *vals, *ends;
 590         char tbuf[1024];
 591
 592         if (!valid_only_metric(unit))
 593                 return;
 594         unit = fixunit(tbuf, os->evsel, unit);
 595         snprintf(buf, sizeof(buf), fmt ?: "", val);
 596         ends = vals = skip_spaces(buf);
 597         while (isdigit(*ends) || *ends == '.')
 598                 ends++;
 599         *ends = 0;
 600         fprintf(out, "%s%s", vals, config->csv_sep);
 601         os->first = false;
 602 }
 603
 604 static void print_metric_only_json(struct perf_stat_config *config __maybe_unused,
 605                                   void *ctx, const char *color __maybe_unused,
 606                                   const char *fmt,
 607                                   const char *unit, double val)
 608 {
 609         struct outstate *os = ctx;
 610         FILE *out = os->fh;
 611         char buf[64], *vals, *ends;
 612         char tbuf[1024];
 613
 614         if (!valid_only_metric(unit))
 615                 return;
 616         unit = fixunit(tbuf, os->evsel, unit);
 617         snprintf(buf, sizeof(buf), fmt ?: "", val);
 618         ends = vals = skip_spaces(buf);
 619         while (isdigit(*ends) || *ends == '.')
 620                 ends++;
 621         *ends = 0;
 622         if (!unit[0] || !vals[0])
 623                 return;
 624         fprintf(out, "%s\"%s\" : \"%s\"", os->first ? "" : ", ", unit, vals);
 625         os->first = false;
 626 }
 627
 628 static void new_line_metric(struct perf_stat_config *config __maybe_unused,
 629                             void *ctx __maybe_unused)
 630 {
 631 }
 632
 633 static void print_metric_header(struct perf_stat_config *config,
 634                                 void *ctx, const char *color __maybe_unused,
 635                                 const char *fmt __maybe_unused,
 636                                 const char *unit, double val __maybe_unused)
 637 {
 638         struct outstate *os = ctx;
 639         char tbuf[1024];
 640
 641         /* In case of iostat, print metric header for first root port only */
 642         if (config->iostat_run &&
 643             os->evsel->priv != os->evsel->evlist->selected->priv)
 644                 return;
 645
 646         if (os->evsel->cgrp != os->cgrp)
 647                 return;
 648
 649         if (!valid_only_metric(unit))
 650                 return;
 651         unit = fixunit(tbuf, os->evsel, unit);
 652
 653         if (config->json_output)
 654                 return;
 655         else if (config->csv_output)
 656                 fprintf(os->fh, "%s%s", unit, config->csv_sep);
 657         else
 658                 fprintf(os->fh, "%*s ", config->metric_only_len, unit);
 659 }
 660
 661 static void print_counter_value_std(struct perf_stat_config *config,
 662                                     struct evsel *evsel, double avg, bool ok)
 663 {
 664         FILE *output = config->output;
 665         double sc =  evsel->scale;
 666         const char *fmt;
 667         const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED;
 668
 669         if (config->big_num)
 670                 fmt = floor(sc) != sc ? "%'*.2f " : "%'*.0f ";
 671         else
 672                 fmt = floor(sc) != sc ? "%*.2f " : "%*.0f ";
 673
 674         if (ok)
 675                 fprintf(output, fmt, COUNTS_LEN, avg);
 676         else
 677                 fprintf(output, "%*s ", COUNTS_LEN, bad_count);
 678
 679         if (evsel->unit)
 680                 fprintf(output, "%-*s ", config->unit_width, evsel->unit);
 681
 682         fprintf(output, "%-*s", EVNAME_LEN, evsel__name(evsel));
 683 }
 684
 685 static void print_counter_value_csv(struct perf_stat_config *config,
 686                                     struct evsel *evsel, double avg, bool ok)
 687 {
 688         FILE *output = config->output;
 689         double sc =  evsel->scale;
 690         const char *sep = config->csv_sep;
 691         const char *fmt = floor(sc) != sc ? "%.2f%s" : "%.0f%s";
 692         const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED;
 693
 694         if (ok)
 695                 fprintf(output, fmt, avg, sep);
 696         else
 697                 fprintf(output, "%s%s", bad_count, sep);
 698
 699         if (evsel->unit)
 700                 fprintf(output, "%s%s", evsel->unit, sep);
 701
 702         fprintf(output, "%s", evsel__name(evsel));
 703 }
 704
 705 static void print_counter_value_json(struct perf_stat_config *config,
 706                                      struct evsel *evsel, double avg, bool ok)
 707 {
 708         FILE *output = config->output;
 709         const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED;
 710
 711         if (ok)
 712                 fprintf(output, "\"counter-value\" : \"%f\", ", avg);
 713         else
 714                 fprintf(output, "\"counter-value\" : \"%s\", ", bad_count);
 715
 716         if (evsel->unit)
 717                 fprintf(output, "\"unit\" : \"%s\", ", evsel->unit);
 718
 719         fprintf(output, "\"event\" : \"%s\", ", evsel__name(evsel));
 720 }
 721
 722 static void print_counter_value(struct perf_stat_config *config,
 723                                 struct evsel *evsel, double avg, bool ok)
 724 {
 725         if (config->json_output)
 726                 print_counter_value_json(config, evsel, avg, ok);
 727         else if (config->csv_output)
 728                 print_counter_value_csv(config, evsel, avg, ok);
 729         else
 730                 print_counter_value_std(config, evsel, avg, ok);
 731 }
 732
 733 static void abs_printout(struct perf_stat_config *config,
 734                          struct aggr_cpu_id id, int aggr_nr,
 735                          struct evsel *evsel, double avg, bool ok)
 736 {
 737         aggr_printout(config, evsel, id, aggr_nr);
 738         print_counter_value(config, evsel, avg, ok);
 739         print_cgroup(config, evsel->cgrp);
 740 }
 741
 742 static bool is_mixed_hw_group(struct evsel *counter)
 743 {
 744         struct evlist *evlist = counter->evlist;
 745         u32 pmu_type = counter->core.attr.type;
 746         struct evsel *pos;
 747
 748         if (counter->core.nr_members < 2)
 749                 return false;
 750
 751         evlist__for_each_entry(evlist, pos) {
 752                 /* software events can be part of any hardware group */
 753                 if (pos->core.attr.type == PERF_TYPE_SOFTWARE)
 754                         continue;
 755                 if (pmu_type == PERF_TYPE_SOFTWARE) {
 756                         pmu_type = pos->core.attr.type;
 757                         continue;
 758                 }
 759                 if (pmu_type != pos->core.attr.type)
 760                         return true;
 761         }
 762
 763         return false;
 764 }
 765
 766 static bool evlist__has_hybrid(struct evlist *evlist)
 767 {
 768         struct evsel *evsel;
 769
 770         if (perf_pmus__num_core_pmus() == 1)
 771                 return false;
 772
 773         evlist__for_each_entry(evlist, evsel) {
 774                 if (evsel->core.is_pmu_core)
 775                         return true;
 776         }
 777
 778         return false;
 779 }
 780
 781 static void printout(struct perf_stat_config *config, struct outstate *os,
 782                      double uval, u64 run, u64 ena, double noise, int aggr_idx)
 783 {
 784         struct perf_stat_output_ctx out;
 785         print_metric_t pm;
 786         new_line_t nl;
 787         print_metricgroup_header_t pmh;
 788         bool ok = true;
 789         struct evsel *counter = os->evsel;
 790
 791         if (config->csv_output) {
 792                 pm = config->metric_only ? print_metric_only_csv : print_metric_csv;
 793                 nl = config->metric_only ? new_line_metric : new_line_csv;
 794                 pmh = print_metricgroup_header_csv;
 795                 os->nfields = 4 + (counter->cgrp ? 1 : 0);
 796         } else if (config->json_output) {
 797                 pm = config->metric_only ? print_metric_only_json : print_metric_json;
 798                 nl = config->metric_only ? new_line_metric : new_line_json;
 799                 pmh = print_metricgroup_header_json;
 800         } else {
 801                 pm = config->metric_only ? print_metric_only : print_metric_std;
 802                 nl = config->metric_only ? new_line_metric : new_line_std;
 803                 pmh = print_metricgroup_header_std;
 804         }
 805
 806         if (run == 0 || ena == 0 || counter->counts->scaled == -1) {
 807                 if (config->metric_only) {
 808                         pm(config, os, NULL, "", "", 0);
 809                         return;
 810                 }
 811
 812                 ok = false;
 813
 814                 if (counter->supported) {
 815                         if (!evlist__has_hybrid(counter->evlist)) {
 816                                 config->print_free_counters_hint = 1;
 817                                 if (is_mixed_hw_group(counter))
 818                                         config->print_mixed_hw_group_error = 1;
 819                         }
 820                 }
 821         }
 822
 823         out.print_metric = pm;
 824         out.new_line = nl;
 825         out.print_metricgroup_header = pmh;
 826         out.ctx = os;
 827         out.force_header = false;
 828
 829         if (!config->metric_only && !counter->default_metricgroup) {
 830                 abs_printout(config, os->id, os->aggr_nr, counter, uval, ok);
 831
 832                 print_noise(config, counter, noise, /*before_metric=*/true);
 833                 print_running(config, run, ena, /*before_metric=*/true);
 834         }
 835
 836         if (ok) {
 837                 if (!config->metric_only && counter->default_metricgroup) {
 838                         void *from = NULL;
 839
 840                         aggr_printout(config, os->evsel, os->id, os->aggr_nr);
 841                         /* Print out all the metricgroup with the same metric event. */
 842                         do {
 843                                 int num = 0;
 844
 845                                 /* Print out the new line for the next new metricgroup. */
 846                                 if (from) {
 847                                         if (config->json_output)
 848                                                 new_line_json(config, (void *)os);
 849                                         else
 850                                                 __new_line_std_csv(config, os);
 851                                 }
 852
 853                                 print_noise(config, counter, noise, /*before_metric=*/true);
 854                                 print_running(config, run, ena, /*before_metric=*/true);
 855                                 from = perf_stat__print_shadow_stats_metricgroup(config, counter, aggr_idx,
 856                                                                                  &num, from, &out,
 857                                                                                  &config->metric_events);
 858                         } while (from != NULL);
 859                 } else
 860                         perf_stat__print_shadow_stats(config, counter, uval, aggr_idx,
 861                                                       &out, &config->metric_events);
 862         } else {
 863                 pm(config, os, /*color=*/NULL, /*format=*/NULL, /*unit=*/"", /*val=*/0);
 864         }
 865
 866         if (!config->metric_only) {
 867                 print_noise(config, counter, noise, /*before_metric=*/false);
 868                 print_running(config, run, ena, /*before_metric=*/false);
 869         }
 870 }
 871
 872 static void uniquify_event_name(struct evsel *counter)
 873 {
 874         char *new_name;
 875         char *config;
 876         int ret = 0;
 877
 878         if (counter->uniquified_name || counter->use_config_name ||
 879             !counter->pmu_name || !strncmp(evsel__name(counter), counter->pmu_name,
 880                                            strlen(counter->pmu_name)))
 881                 return;
 882
 883         config = strchr(counter->name, '/');
 884         if (config) {
 885                 if (asprintf(&new_name,
 886                              "%s%s", counter->pmu_name, config) > 0) {
 887                         free(counter->name);
 888                         counter->name = new_name;
 889                 }
 890         } else {
 891                 if (evsel__is_hybrid(counter)) {
 892                         ret = asprintf(&new_name, "%s/%s/",
 893                                        counter->pmu_name, counter->name);
 894                 } else {
 895                         ret = asprintf(&new_name, "%s [%s]",
 896                                        counter->name, counter->pmu_name);
 897                 }
 898
 899                 if (ret) {
 900                         free(counter->name);
 901                         counter->name = new_name;
 902                 }
 903         }
 904
 905         counter->uniquified_name = true;
 906 }
 907
 908 static bool hybrid_uniquify(struct evsel *evsel, struct perf_stat_config *config)
 909 {
 910         return evsel__is_hybrid(evsel) && !config->hybrid_merge;
 911 }
 912
 913 static void uniquify_counter(struct perf_stat_config *config, struct evsel *counter)
 914 {
 915         if (config->aggr_mode == AGGR_NONE || hybrid_uniquify(counter, config))
 916                 uniquify_event_name(counter);
 917 }
 918
 919 /**
 920  * should_skip_zero_count() - Check if the event should print 0 values.
 921  * @config: The perf stat configuration (including aggregation mode).
 922  * @counter: The evsel with its associated cpumap.
 923  * @id: The aggregation id that is being queried.
 924  *
 925  * Due to mismatch between the event cpumap or thread-map and the
 926  * aggregation mode, sometimes it'd iterate the counter with the map
 927  * which does not contain any values.
 928  *
 929  * For example, uncore events have dedicated CPUs to manage them,
 930  * result for other CPUs should be zero and skipped.
 931  *
 932  * Return: %true if the value should NOT be printed, %false if the value
 933  * needs to be printed like "<not counted>" or "<not supported>".
 934  */
 935 static bool should_skip_zero_counter(struct perf_stat_config *config,
 936                                      struct evsel *counter,
 937                                      const struct aggr_cpu_id *id)
 938 {
 939         struct perf_cpu cpu;
 940         int idx;
 941
 942         /*
 943          * Skip value 0 when enabling --per-thread globally,
 944          * otherwise it will have too many 0 output.
 945          */
 946         if (config->aggr_mode == AGGR_THREAD && config->system_wide)
 947                 return true;
 948
 949         /* Tool events have the software PMU but are only gathered on 1. */
 950         if (evsel__is_tool(counter))
 951                 return true;
 952
 953         /*
 954          * Skip value 0 when it's an uncore event and the given aggr id
 955          * does not belong to the PMU cpumask.
 956          */
 957         if (!counter->pmu || !counter->pmu->is_uncore)
 958                 return false;
 959
 960         perf_cpu_map__for_each_cpu(cpu, idx, counter->pmu->cpus) {
 961                 struct aggr_cpu_id own_id = config->aggr_get_id(config, cpu);
 962
 963                 if (aggr_cpu_id__equal(id, &own_id))
 964                         return false;
 965         }
 966         return true;
 967 }
 968
 969 static void print_counter_aggrdata(struct perf_stat_config *config,
 970                                    struct evsel *counter, int aggr_idx,
 971                                    struct outstate *os)
 972 {
 973         FILE *output = config->output;
 974         u64 ena, run, val;
 975         double uval;
 976         struct perf_stat_evsel *ps = counter->stats;
 977         struct perf_stat_aggr *aggr = &ps->aggr[aggr_idx];
 978         struct aggr_cpu_id id = config->aggr_map->map[aggr_idx];
 979         double avg = aggr->counts.val;
 980         bool metric_only = config->metric_only;
 981
 982         os->id = id;
 983         os->aggr_nr = aggr->nr;
 984         os->evsel = counter;
 985
 986         /* Skip already merged uncore/hybrid events */
 987         if (counter->merged_stat)
 988                 return;
 989
 990         uniquify_counter(config, counter);
 991
 992         val = aggr->counts.val;
 993         ena = aggr->counts.ena;
 994         run = aggr->counts.run;
 995
 996         if (perf_stat__skip_metric_event(counter, &config->metric_events, ena, run))
 997                 return;
 998
 999         if (val == 0 && should_skip_zero_counter(config, counter, &id))
1000                 return;
1001
1002         if (!metric_only) {
1003                 if (config->json_output)
1004                         fputc('{', output);
1005                 if (os->prefix)
1006                         fprintf(output, "%s", os->prefix);
1007                 else if (config->summary && config->csv_output &&
1008                          !config->no_csv_summary && !config->interval)
1009                         fprintf(output, "%s%s", "summary", config->csv_sep);
1010         }
1011
1012         uval = val * counter->scale;
1013
1014         printout(config, os, uval, run, ena, avg, aggr_idx);
1015
1016         if (!metric_only)
1017                 fputc('\n', output);
1018 }
1019
1020 static void print_metric_begin(struct perf_stat_config *config,
1021                                struct evlist *evlist,
1022                                struct outstate *os, int aggr_idx)
1023 {
1024         struct perf_stat_aggr *aggr;
1025         struct aggr_cpu_id id;
1026         struct evsel *evsel;
1027
1028         os->first = true;
1029         if (!config->metric_only)
1030                 return;
1031
1032         if (config->json_output)
1033                 fputc('{', config->output);
1034         if (os->prefix)
1035                 fprintf(config->output, "%s", os->prefix);
1036
1037         evsel = evlist__first(evlist);
1038         id = config->aggr_map->map[aggr_idx];
1039         aggr = &evsel->stats->aggr[aggr_idx];
1040         aggr_printout(config, evsel, id, aggr->nr);
1041
1042         print_cgroup(config, os->cgrp ? : evsel->cgrp);
1043 }
1044
1045 static void print_metric_end(struct perf_stat_config *config, struct outstate *os)
1046 {
1047         FILE *output = config->output;
1048
1049         if (!config->metric_only)
1050                 return;
1051
1052         if (config->json_output) {
1053                 if (os->first)
1054                         fputs("\"metric-value\" : \"none\"", output);
1055                 fputc('}', output);
1056         }
1057         fputc('\n', output);
1058 }
1059
1060 static void print_aggr(struct perf_stat_config *config,
1061                        struct evlist *evlist,
1062                        struct outstate *os)
1063 {
1064         struct evsel *counter;
1065         int aggr_idx;
1066
1067         if (!config->aggr_map || !config->aggr_get_id)
1068                 return;
1069
1070         /*
1071          * With metric_only everything is on a single line.
1072          * Without each counter has its own line.
1073          */
1074         cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1075                 print_metric_begin(config, evlist, os, aggr_idx);
1076
1077                 evlist__for_each_entry(evlist, counter) {
1078                         print_counter_aggrdata(config, counter, aggr_idx, os);
1079                 }
1080                 print_metric_end(config, os);
1081         }
1082 }
1083
1084 static void print_aggr_cgroup(struct perf_stat_config *config,
1085                               struct evlist *evlist,
1086                               struct outstate *os)
1087 {
1088         struct evsel *counter, *evsel;
1089         int aggr_idx;
1090
1091         if (!config->aggr_map || !config->aggr_get_id)
1092                 return;
1093
1094         evlist__for_each_entry(evlist, evsel) {
1095                 if (os->cgrp == evsel->cgrp)
1096                         continue;
1097
1098                 os->cgrp = evsel->cgrp;
1099
1100                 cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1101                         print_metric_begin(config, evlist, os, aggr_idx);
1102
1103                         evlist__for_each_entry(evlist, counter) {
1104                                 if (counter->cgrp != os->cgrp)
1105                                         continue;
1106
1107                                 print_counter_aggrdata(config, counter, aggr_idx, os);
1108                         }
1109                         print_metric_end(config, os);
1110                 }
1111         }
1112 }
1113
1114 static void print_counter(struct perf_stat_config *config,
1115                           struct evsel *counter, struct outstate *os)
1116 {
1117         int aggr_idx;
1118
1119         /* AGGR_THREAD doesn't have config->aggr_get_id */
1120         if (!config->aggr_map)
1121                 return;
1122
1123         cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1124                 print_counter_aggrdata(config, counter, aggr_idx, os);
1125         }
1126 }
1127
1128 static void print_no_aggr_metric(struct perf_stat_config *config,
1129                                  struct evlist *evlist,
1130                                  struct outstate *os)
1131 {
1132         int all_idx;
1133         struct perf_cpu cpu;
1134
1135         perf_cpu_map__for_each_cpu(cpu, all_idx, evlist->core.user_requested_cpus) {
1136                 struct evsel *counter;
1137                 bool first = true;
1138
1139                 evlist__for_each_entry(evlist, counter) {
1140                         u64 ena, run, val;
1141                         double uval;
1142                         struct perf_stat_evsel *ps = counter->stats;
1143                         int aggr_idx = 0;
1144
1145                         if (!perf_cpu_map__has(evsel__cpus(counter), cpu))
1146                                 continue;
1147
1148                         cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1149                                 if (config->aggr_map->map[aggr_idx].cpu.cpu == cpu.cpu)
1150                                         break;
1151                         }
1152
1153                         os->evsel = counter;
1154                         os->id = aggr_cpu_id__cpu(cpu, /*data=*/NULL);
1155                         if (first) {
1156                                 print_metric_begin(config, evlist, os, aggr_idx);
1157                                 first = false;
1158                         }
1159                         val = ps->aggr[aggr_idx].counts.val;
1160                         ena = ps->aggr[aggr_idx].counts.ena;
1161                         run = ps->aggr[aggr_idx].counts.run;
1162
1163                         uval = val * counter->scale;
1164                         printout(config, os, uval, run, ena, 1.0, aggr_idx);
1165                 }
1166                 if (!first)
1167                         print_metric_end(config, os);
1168         }
1169 }
1170
1171 static void print_metric_headers_std(struct perf_stat_config *config,
1172                                      bool no_indent)
1173 {
1174         fputc(' ', config->output);
1175
1176         if (!no_indent) {
1177                 int len = aggr_header_lens[config->aggr_mode];
1178
1179                 if (nr_cgroups || config->cgroup_list)
1180                         len += CGROUP_LEN + 1;
1181
1182                 fprintf(config->output, "%*s", len, "");
1183         }
1184 }
1185
1186 static void print_metric_headers_csv(struct perf_stat_config *config,
1187                                      bool no_indent __maybe_unused)
1188 {
1189         const char *p;
1190
1191         if (config->interval)
1192                 fprintf(config->output, "time%s", config->csv_sep);
1193         if (config->iostat_run)
1194                 return;
1195
1196         p = aggr_header_csv[config->aggr_mode];
1197         while (*p) {
1198                 if (*p == ',')
1199                         fputs(config->csv_sep, config->output);
1200                 else
1201                         fputc(*p, config->output);
1202                 p++;
1203         }
1204 }
1205
1206 static void print_metric_headers_json(struct perf_stat_config *config __maybe_unused,
1207                                       bool no_indent __maybe_unused)
1208 {
1209 }
1210
1211 static void print_metric_headers(struct perf_stat_config *config,
1212                                  struct evlist *evlist, bool no_indent)
1213 {
1214         struct evsel *counter;
1215         struct outstate os = {
1216                 .fh = config->output
1217         };
1218         struct perf_stat_output_ctx out = {
1219                 .ctx = &os,
1220                 .print_metric = print_metric_header,
1221                 .new_line = new_line_metric,
1222                 .force_header = true,
1223         };
1224
1225         if (config->json_output)
1226                 print_metric_headers_json(config, no_indent);
1227         else if (config->csv_output)
1228                 print_metric_headers_csv(config, no_indent);
1229         else
1230                 print_metric_headers_std(config, no_indent);
1231
1232         if (config->iostat_run)
1233                 iostat_print_header_prefix(config);
1234
1235         if (config->cgroup_list)
1236                 os.cgrp = evlist__first(evlist)->cgrp;
1237
1238         /* Print metrics headers only */
1239         evlist__for_each_entry(evlist, counter) {
1240                 if (config->aggr_mode != AGGR_NONE && counter->metric_leader != counter)
1241                         continue;
1242
1243                 os.evsel = counter;
1244
1245                 perf_stat__print_shadow_stats(config, counter, 0,
1246                                               0,
1247                                               &out,
1248                                               &config->metric_events);
1249         }
1250
1251         if (!config->json_output)
1252                 fputc('\n', config->output);
1253 }
1254
1255 static void prepare_interval(struct perf_stat_config *config,
1256                              char *prefix, size_t len, struct timespec *ts)
1257 {
1258         if (config->iostat_run)
1259                 return;
1260
1261         if (config->json_output)
1262                 scnprintf(prefix, len, "\"interval\" : %lu.%09lu, ",
1263                           (unsigned long) ts->tv_sec, ts->tv_nsec);
1264         else if (config->csv_output)
1265                 scnprintf(prefix, len, "%lu.%09lu%s",
1266                           (unsigned long) ts->tv_sec, ts->tv_nsec, config->csv_sep);
1267         else
1268                 scnprintf(prefix, len, "%6lu.%09lu ",
1269                           (unsigned long) ts->tv_sec, ts->tv_nsec);
1270 }
1271
1272 static void print_header_interval_std(struct perf_stat_config *config,
1273                                       struct target *_target __maybe_unused,
1274                                       struct evlist *evlist,
1275                                       int argc __maybe_unused,
1276                                       const char **argv __maybe_unused)
1277 {
1278         FILE *output = config->output;
1279
1280         switch (config->aggr_mode) {
1281         case AGGR_NODE:
1282         case AGGR_SOCKET:
1283         case AGGR_DIE:
1284         case AGGR_CLUSTER:
1285         case AGGR_CACHE:
1286         case AGGR_CORE:
1287                 fprintf(output, "#%*s %-*s cpus",
1288                         INTERVAL_LEN - 1, "time",
1289                         aggr_header_lens[config->aggr_mode],
1290                         aggr_header_std[config->aggr_mode]);
1291                 break;
1292         case AGGR_NONE:
1293                 fprintf(output, "#%*s %-*s",
1294                         INTERVAL_LEN - 1, "time",
1295                         aggr_header_lens[config->aggr_mode],
1296                         aggr_header_std[config->aggr_mode]);
1297                 break;
1298         case AGGR_THREAD:
1299                 fprintf(output, "#%*s %*s-%-*s",
1300                         INTERVAL_LEN - 1, "time",
1301                         COMM_LEN, "comm", PID_LEN, "pid");
1302                 break;
1303         case AGGR_GLOBAL:
1304         default:
1305                 if (!config->iostat_run)
1306                         fprintf(output, "#%*s",
1307                                 INTERVAL_LEN - 1, "time");
1308         case AGGR_UNSET:
1309         case AGGR_MAX:
1310                 break;
1311         }
1312
1313         if (config->metric_only)
1314                 print_metric_headers(config, evlist, true);
1315         else
1316                 fprintf(output, " %*s %*s events\n",
1317                         COUNTS_LEN, "counts", config->unit_width, "unit");
1318 }
1319
1320 static void print_header_std(struct perf_stat_config *config,
1321                              struct target *_target, struct evlist *evlist,
1322                              int argc, const char **argv)
1323 {
1324         FILE *output = config->output;
1325         int i;
1326
1327         fprintf(output, "\n");
1328         fprintf(output, " Performance counter stats for ");
1329         if (_target->bpf_str)
1330                 fprintf(output, "\'BPF program(s) %s", _target->bpf_str);
1331         else if (_target->system_wide)
1332                 fprintf(output, "\'system wide");
1333         else if (_target->cpu_list)
1334                 fprintf(output, "\'CPU(s) %s", _target->cpu_list);
1335         else if (!target__has_task(_target)) {
1336                 fprintf(output, "\'%s", argv ? argv[0] : "pipe");
1337                 for (i = 1; argv && (i < argc); i++)
1338                         fprintf(output, " %s", argv[i]);
1339         } else if (_target->pid)
1340                 fprintf(output, "process id \'%s", _target->pid);
1341         else
1342                 fprintf(output, "thread id \'%s", _target->tid);
1343
1344         fprintf(output, "\'");
1345         if (config->run_count > 1)
1346                 fprintf(output, " (%d runs)", config->run_count);
1347         fprintf(output, ":\n\n");
1348
1349         if (config->metric_only)
1350                 print_metric_headers(config, evlist, false);
1351 }
1352
1353 static void print_header_csv(struct perf_stat_config *config,
1354                              struct target *_target __maybe_unused,
1355                              struct evlist *evlist,
1356                              int argc __maybe_unused,
1357                              const char **argv __maybe_unused)
1358 {
1359         if (config->metric_only)
1360                 print_metric_headers(config, evlist, true);
1361 }
1362 static void print_header_json(struct perf_stat_config *config,
1363                               struct target *_target __maybe_unused,
1364                               struct evlist *evlist,
1365                               int argc __maybe_unused,
1366                               const char **argv __maybe_unused)
1367 {
1368         if (config->metric_only)
1369                 print_metric_headers(config, evlist, true);
1370 }
1371
1372 static void print_header(struct perf_stat_config *config,
1373                          struct target *_target,
1374                          struct evlist *evlist,
1375                          int argc, const char **argv)
1376 {
1377         static int num_print_iv;
1378
1379         fflush(stdout);
1380
1381         if (config->interval_clear)
1382                 puts(CONSOLE_CLEAR);
1383
1384         if (num_print_iv == 0 || config->interval_clear) {
1385                 if (config->json_output)
1386                         print_header_json(config, _target, evlist, argc, argv);
1387                 else if (config->csv_output)
1388                         print_header_csv(config, _target, evlist, argc, argv);
1389                 else if (config->interval)
1390                         print_header_interval_std(config, _target, evlist, argc, argv);
1391                 else
1392                         print_header_std(config, _target, evlist, argc, argv);
1393         }
1394
1395         if (num_print_iv++ == 25)
1396                 num_print_iv = 0;
1397 }
1398
1399 static int get_precision(double num)
1400 {
1401         if (num > 1)
1402                 return 0;
1403
1404         return lround(ceil(-log10(num)));
1405 }
1406
1407 static void print_table(struct perf_stat_config *config,
1408                         FILE *output, int precision, double avg)
1409 {
1410         char tmp[64];
1411         int idx, indent = 0;
1412
1413         scnprintf(tmp, 64, " %17.*f", precision, avg);
1414         while (tmp[indent] == ' ')
1415                 indent++;
1416
1417         fprintf(output, "%*s# Table of individual measurements:\n", indent, "");
1418
1419         for (idx = 0; idx < config->run_count; idx++) {
1420                 double run = (double) config->walltime_run[idx] / NSEC_PER_SEC;
1421                 int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5);
1422
1423                 fprintf(output, " %17.*f (%+.*f) ",
1424                         precision, run, precision, run - avg);
1425
1426                 for (h = 0; h < n; h++)
1427                         fprintf(output, "#");
1428
1429                 fprintf(output, "\n");
1430         }
1431
1432         fprintf(output, "\n%*s# Final result:\n", indent, "");
1433 }
1434
1435 static double timeval2double(struct timeval *t)
1436 {
1437         return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC;
1438 }
1439
1440 static void print_footer(struct perf_stat_config *config)
1441 {
1442         double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1443         FILE *output = config->output;
1444
1445         if (config->interval || config->csv_output || config->json_output)
1446                 return;
1447
1448         if (!config->null_run)
1449                 fprintf(output, "\n");
1450
1451         if (config->run_count == 1) {
1452                 fprintf(output, " %17.9f seconds time elapsed", avg);
1453
1454                 if (config->ru_display) {
1455                         double ru_utime = timeval2double(&config->ru_data.ru_utime);
1456                         double ru_stime = timeval2double(&config->ru_data.ru_stime);
1457
1458                         fprintf(output, "\n\n");
1459                         fprintf(output, " %17.9f seconds user\n", ru_utime);
1460                         fprintf(output, " %17.9f seconds sys\n", ru_stime);
1461                 }
1462         } else {
1463                 double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1464                 /*
1465                  * Display at most 2 more significant
1466                  * digits than the stddev inaccuracy.
1467                  */
1468                 int precision = get_precision(sd) + 2;
1469
1470                 if (config->walltime_run_table)
1471                         print_table(config, output, precision, avg);
1472
1473                 fprintf(output, " %17.*f +- %.*f seconds time elapsed",
1474                         precision, avg, precision, sd);
1475
1476                 print_noise_pct(config, sd, avg, /*before_metric=*/false);
1477         }
1478         fprintf(output, "\n\n");
1479
1480         if (config->print_free_counters_hint && sysctl__nmi_watchdog_enabled())
1481                 fprintf(output,
1482 "Some events weren't counted. Try disabling the NMI watchdog:\n"
1483 "       echo 0 > /proc/sys/kernel/nmi_watchdog\n"
1484 "       perf stat ...\n"
1485 "       echo 1 > /proc/sys/kernel/nmi_watchdog\n");
1486
1487         if (config->print_mixed_hw_group_error)
1488                 fprintf(output,
1489                         "The events in group usually have to be from "
1490                         "the same PMU. Try reorganizing the group.\n");
1491 }
1492
1493 static void print_percore(struct perf_stat_config *config,
1494                           struct evsel *counter, struct outstate *os)
1495 {
1496         bool metric_only = config->metric_only;
1497         FILE *output = config->output;
1498         struct cpu_aggr_map *core_map;
1499         int aggr_idx, core_map_len = 0;
1500
1501         if (!config->aggr_map || !config->aggr_get_id)
1502                 return;
1503
1504         if (config->percore_show_thread)
1505                 return print_counter(config, counter, os);
1506
1507         /*
1508          * core_map will hold the aggr_cpu_id for the cores that have been
1509          * printed so that each core is printed just once.
1510          */
1511         core_map = cpu_aggr_map__empty_new(config->aggr_map->nr);
1512         if (core_map == NULL) {
1513                 fprintf(output, "Cannot allocate per-core aggr map for display\n");
1514                 return;
1515         }
1516
1517         cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1518                 struct perf_cpu curr_cpu = config->aggr_map->map[aggr_idx].cpu;
1519                 struct aggr_cpu_id core_id = aggr_cpu_id__core(curr_cpu, NULL);
1520                 bool found = false;
1521
1522                 for (int i = 0; i < core_map_len; i++) {
1523                         if (aggr_cpu_id__equal(&core_map->map[i], &core_id)) {
1524                                 found = true;
1525                                 break;
1526                         }
1527                 }
1528                 if (found)
1529                         continue;
1530
1531                 print_counter_aggrdata(config, counter, aggr_idx, os);
1532
1533                 core_map->map[core_map_len++] = core_id;
1534         }
1535         free(core_map);
1536
1537         if (metric_only)
1538                 fputc('\n', output);
1539 }
1540
1541 static void print_cgroup_counter(struct perf_stat_config *config, struct evlist *evlist,
1542                                  struct outstate *os)
1543 {
1544         struct evsel *counter;
1545
1546         evlist__for_each_entry(evlist, counter) {
1547                 if (os->cgrp != counter->cgrp) {
1548                         if (os->cgrp != NULL)
1549                                 print_metric_end(config, os);
1550
1551                         os->cgrp = counter->cgrp;
1552                         print_metric_begin(config, evlist, os, /*aggr_idx=*/0);
1553                 }
1554
1555                 print_counter(config, counter, os);
1556         }
1557         if (os->cgrp)
1558                 print_metric_end(config, os);
1559 }
1560
1561 void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
1562                             struct target *_target, struct timespec *ts,
1563                             int argc, const char **argv)
1564 {
1565         bool metric_only = config->metric_only;
1566         int interval = config->interval;
1567         struct evsel *counter;
1568         char buf[64];
1569         struct outstate os = {
1570                 .fh = config->output,
1571                 .first = true,
1572         };
1573
1574         if (config->iostat_run)
1575                 evlist->selected = evlist__first(evlist);
1576
1577         if (interval) {
1578                 os.prefix = buf;
1579                 prepare_interval(config, buf, sizeof(buf), ts);
1580         }
1581
1582         print_header(config, _target, evlist, argc, argv);
1583
1584         switch (config->aggr_mode) {
1585         case AGGR_CORE:
1586         case AGGR_CACHE:
1587         case AGGR_CLUSTER:
1588         case AGGR_DIE:
1589         case AGGR_SOCKET:
1590         case AGGR_NODE:
1591                 if (config->cgroup_list)
1592                         print_aggr_cgroup(config, evlist, &os);
1593                 else
1594                         print_aggr(config, evlist, &os);
1595                 break;
1596         case AGGR_THREAD:
1597         case AGGR_GLOBAL:
1598                 if (config->iostat_run) {
1599                         iostat_print_counters(evlist, config, ts, buf,
1600                                               (iostat_print_counter_t)print_counter, &os);
1601                 } else if (config->cgroup_list) {
1602                         print_cgroup_counter(config, evlist, &os);
1603                 } else {
1604                         print_metric_begin(config, evlist, &os, /*aggr_idx=*/0);
1605                         evlist__for_each_entry(evlist, counter) {
1606                                 print_counter(config, counter, &os);
1607                         }
1608                         print_metric_end(config, &os);
1609                 }
1610                 break;
1611         case AGGR_NONE:
1612                 if (metric_only)
1613                         print_no_aggr_metric(config, evlist, &os);
1614                 else {
1615                         evlist__for_each_entry(evlist, counter) {
1616                                 if (counter->percore)
1617                                         print_percore(config, counter, &os);
1618                                 else
1619                                         print_counter(config, counter, &os);
1620                         }
1621                 }
1622                 break;
1623         case AGGR_MAX:
1624         case AGGR_UNSET:
1625         default:
1626                 break;
1627         }
1628
1629         print_footer(config);
1630
1631         fflush(config->output);
1632 }