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