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