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         /* Tool events have the software PMU but are only gathered on 1. */
 936         if (evsel__is_tool(counter))
 937                 return true;
 938
 939         /*
 940          * Skip value 0 when it's an uncore event and the given aggr id
 941          * does not belong to the PMU cpumask.
 942          */
 943         if (!counter->pmu || !counter->pmu->is_uncore)
 944                 return false;
 945
 946         perf_cpu_map__for_each_cpu(cpu, idx, counter->pmu->cpus) {
 947                 struct aggr_cpu_id own_id = config->aggr_get_id(config, cpu);
 948
 949                 if (aggr_cpu_id__equal(id, &own_id))
 950                         return false;
 951         }
 952         return true;
 953 }
 954
 955 static void print_counter_aggrdata(struct perf_stat_config *config,
 956                                    struct evsel *counter, int aggr_idx,
 957                                    struct outstate *os)
 958 {
 959         FILE *output = config->output;
 960         u64 ena, run, val;
 961         double uval;
 962         struct perf_stat_evsel *ps = counter->stats;
 963         struct perf_stat_aggr *aggr = &ps->aggr[aggr_idx];
 964         struct aggr_cpu_id id = config->aggr_map->map[aggr_idx];
 965         double avg = aggr->counts.val;
 966         bool metric_only = config->metric_only;
 967
 968         os->id = id;
 969         os->aggr_nr = aggr->nr;
 970         os->evsel = counter;
 971
 972         /* Skip already merged uncore/hybrid events */
 973         if (counter->merged_stat)
 974                 return;
 975
 976         uniquify_counter(config, counter);
 977
 978         val = aggr->counts.val;
 979         ena = aggr->counts.ena;
 980         run = aggr->counts.run;
 981
 982         if (perf_stat__skip_metric_event(counter, &config->metric_events, ena, run))
 983                 return;
 984
 985         if (val == 0 && should_skip_zero_counter(config, counter, &id))
 986                 return;
 987
 988         if (!metric_only) {
 989                 if (config->json_output)
 990                         fputc('{', output);
 991                 if (os->prefix)
 992                         fprintf(output, "%s", os->prefix);
 993                 else if (config->summary && config->csv_output &&
 994                          !config->no_csv_summary && !config->interval)
 995                         fprintf(output, "%s%s", "summary", config->csv_sep);
 996         }
 997
 998         uval = val * counter->scale;
 999
1000         printout(config, os, uval, run, ena, avg, aggr_idx);
1001
1002         if (!metric_only)
1003                 fputc('\n', output);
1004 }
1005
1006 static void print_metric_begin(struct perf_stat_config *config,
1007                                struct evlist *evlist,
1008                                struct outstate *os, int aggr_idx)
1009 {
1010         struct perf_stat_aggr *aggr;
1011         struct aggr_cpu_id id;
1012         struct evsel *evsel;
1013
1014         os->first = true;
1015         if (!config->metric_only)
1016                 return;
1017
1018         if (config->json_output)
1019                 fputc('{', config->output);
1020         if (os->prefix)
1021                 fprintf(config->output, "%s", os->prefix);
1022
1023         evsel = evlist__first(evlist);
1024         id = config->aggr_map->map[aggr_idx];
1025         aggr = &evsel->stats->aggr[aggr_idx];
1026         aggr_printout(config, evsel, id, aggr->nr);
1027
1028         print_cgroup(config, os->cgrp ? : evsel->cgrp);
1029 }
1030
1031 static void print_metric_end(struct perf_stat_config *config, struct outstate *os)
1032 {
1033         FILE *output = config->output;
1034
1035         if (!config->metric_only)
1036                 return;
1037
1038         if (config->json_output) {
1039                 if (os->first)
1040                         fputs("\"metric-value\" : \"none\"", output);
1041                 fputc('}', output);
1042         }
1043         fputc('\n', output);
1044 }
1045
1046 static void print_aggr(struct perf_stat_config *config,
1047                        struct evlist *evlist,
1048                        struct outstate *os)
1049 {
1050         struct evsel *counter;
1051         int aggr_idx;
1052
1053         if (!config->aggr_map || !config->aggr_get_id)
1054                 return;
1055
1056         /*
1057          * With metric_only everything is on a single line.
1058          * Without each counter has its own line.
1059          */
1060         cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1061                 print_metric_begin(config, evlist, os, aggr_idx);
1062
1063                 evlist__for_each_entry(evlist, counter) {
1064                         print_counter_aggrdata(config, counter, aggr_idx, os);
1065                 }
1066                 print_metric_end(config, os);
1067         }
1068 }
1069
1070 static void print_aggr_cgroup(struct perf_stat_config *config,
1071                               struct evlist *evlist,
1072                               struct outstate *os)
1073 {
1074         struct evsel *counter, *evsel;
1075         int aggr_idx;
1076
1077         if (!config->aggr_map || !config->aggr_get_id)
1078                 return;
1079
1080         evlist__for_each_entry(evlist, evsel) {
1081                 if (os->cgrp == evsel->cgrp)
1082                         continue;
1083
1084                 os->cgrp = evsel->cgrp;
1085
1086                 cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1087                         print_metric_begin(config, evlist, os, aggr_idx);
1088
1089                         evlist__for_each_entry(evlist, counter) {
1090                                 if (counter->cgrp != os->cgrp)
1091                                         continue;
1092
1093                                 print_counter_aggrdata(config, counter, aggr_idx, os);
1094                         }
1095                         print_metric_end(config, os);
1096                 }
1097         }
1098 }
1099
1100 static void print_counter(struct perf_stat_config *config,
1101                           struct evsel *counter, struct outstate *os)
1102 {
1103         int aggr_idx;
1104
1105         /* AGGR_THREAD doesn't have config->aggr_get_id */
1106         if (!config->aggr_map)
1107                 return;
1108
1109         cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1110                 print_counter_aggrdata(config, counter, aggr_idx, os);
1111         }
1112 }
1113
1114 static void print_no_aggr_metric(struct perf_stat_config *config,
1115                                  struct evlist *evlist,
1116                                  struct outstate *os)
1117 {
1118         int all_idx;
1119         struct perf_cpu cpu;
1120
1121         perf_cpu_map__for_each_cpu(cpu, all_idx, evlist->core.user_requested_cpus) {
1122                 struct evsel *counter;
1123                 bool first = true;
1124
1125                 evlist__for_each_entry(evlist, counter) {
1126                         u64 ena, run, val;
1127                         double uval;
1128                         struct perf_stat_evsel *ps = counter->stats;
1129                         int aggr_idx = perf_cpu_map__idx(evsel__cpus(counter), cpu);
1130
1131                         if (aggr_idx < 0)
1132                                 continue;
1133
1134                         os->evsel = counter;
1135                         os->id = aggr_cpu_id__cpu(cpu, /*data=*/NULL);
1136                         if (first) {
1137                                 print_metric_begin(config, evlist, os, aggr_idx);
1138                                 first = false;
1139                         }
1140                         val = ps->aggr[aggr_idx].counts.val;
1141                         ena = ps->aggr[aggr_idx].counts.ena;
1142                         run = ps->aggr[aggr_idx].counts.run;
1143
1144                         uval = val * counter->scale;
1145                         printout(config, os, uval, run, ena, 1.0, aggr_idx);
1146                 }
1147                 if (!first)
1148                         print_metric_end(config, os);
1149         }
1150 }
1151
1152 static void print_metric_headers_std(struct perf_stat_config *config,
1153                                      bool no_indent)
1154 {
1155         fputc(' ', config->output);
1156
1157         if (!no_indent) {
1158                 int len = aggr_header_lens[config->aggr_mode];
1159
1160                 if (nr_cgroups || config->cgroup_list)
1161                         len += CGROUP_LEN + 1;
1162
1163                 fprintf(config->output, "%*s", len, "");
1164         }
1165 }
1166
1167 static void print_metric_headers_csv(struct perf_stat_config *config,
1168                                      bool no_indent __maybe_unused)
1169 {
1170         if (config->interval)
1171                 fputs("time,", config->output);
1172         if (!config->iostat_run)
1173                 fputs(aggr_header_csv[config->aggr_mode], config->output);
1174 }
1175
1176 static void print_metric_headers_json(struct perf_stat_config *config __maybe_unused,
1177                                       bool no_indent __maybe_unused)
1178 {
1179 }
1180
1181 static void print_metric_headers(struct perf_stat_config *config,
1182                                  struct evlist *evlist, bool no_indent)
1183 {
1184         struct evsel *counter;
1185         struct outstate os = {
1186                 .fh = config->output
1187         };
1188         struct perf_stat_output_ctx out = {
1189                 .ctx = &os,
1190                 .print_metric = print_metric_header,
1191                 .new_line = new_line_metric,
1192                 .force_header = true,
1193         };
1194
1195         if (config->json_output)
1196                 print_metric_headers_json(config, no_indent);
1197         else if (config->csv_output)
1198                 print_metric_headers_csv(config, no_indent);
1199         else
1200                 print_metric_headers_std(config, no_indent);
1201
1202         if (config->iostat_run)
1203                 iostat_print_header_prefix(config);
1204
1205         if (config->cgroup_list)
1206                 os.cgrp = evlist__first(evlist)->cgrp;
1207
1208         /* Print metrics headers only */
1209         evlist__for_each_entry(evlist, counter) {
1210                 os.evsel = counter;
1211
1212                 perf_stat__print_shadow_stats(config, counter, 0,
1213                                               0,
1214                                               &out,
1215                                               &config->metric_events);
1216         }
1217
1218         if (!config->json_output)
1219                 fputc('\n', config->output);
1220 }
1221
1222 static void prepare_interval(struct perf_stat_config *config,
1223                              char *prefix, size_t len, struct timespec *ts)
1224 {
1225         if (config->iostat_run)
1226                 return;
1227
1228         if (config->json_output)
1229                 scnprintf(prefix, len, "\"interval\" : %lu.%09lu, ",
1230                           (unsigned long) ts->tv_sec, ts->tv_nsec);
1231         else if (config->csv_output)
1232                 scnprintf(prefix, len, "%lu.%09lu%s",
1233                           (unsigned long) ts->tv_sec, ts->tv_nsec, config->csv_sep);
1234         else
1235                 scnprintf(prefix, len, "%6lu.%09lu ",
1236                           (unsigned long) ts->tv_sec, ts->tv_nsec);
1237 }
1238
1239 static void print_header_interval_std(struct perf_stat_config *config,
1240                                       struct target *_target __maybe_unused,
1241                                       struct evlist *evlist,
1242                                       int argc __maybe_unused,
1243                                       const char **argv __maybe_unused)
1244 {
1245         FILE *output = config->output;
1246
1247         switch (config->aggr_mode) {
1248         case AGGR_NODE:
1249         case AGGR_SOCKET:
1250         case AGGR_DIE:
1251         case AGGR_CACHE:
1252         case AGGR_CORE:
1253                 fprintf(output, "#%*s %-*s cpus",
1254                         INTERVAL_LEN - 1, "time",
1255                         aggr_header_lens[config->aggr_mode],
1256                         aggr_header_std[config->aggr_mode]);
1257                 break;
1258         case AGGR_NONE:
1259                 fprintf(output, "#%*s %-*s",
1260                         INTERVAL_LEN - 1, "time",
1261                         aggr_header_lens[config->aggr_mode],
1262                         aggr_header_std[config->aggr_mode]);
1263                 break;
1264         case AGGR_THREAD:
1265                 fprintf(output, "#%*s %*s-%-*s",
1266                         INTERVAL_LEN - 1, "time",
1267                         COMM_LEN, "comm", PID_LEN, "pid");
1268                 break;
1269         case AGGR_GLOBAL:
1270         default:
1271                 if (!config->iostat_run)
1272                         fprintf(output, "#%*s",
1273                                 INTERVAL_LEN - 1, "time");
1274         case AGGR_UNSET:
1275         case AGGR_MAX:
1276                 break;
1277         }
1278
1279         if (config->metric_only)
1280                 print_metric_headers(config, evlist, true);
1281         else
1282                 fprintf(output, " %*s %*s events\n",
1283                         COUNTS_LEN, "counts", config->unit_width, "unit");
1284 }
1285
1286 static void print_header_std(struct perf_stat_config *config,
1287                              struct target *_target, struct evlist *evlist,
1288                              int argc, const char **argv)
1289 {
1290         FILE *output = config->output;
1291         int i;
1292
1293         fprintf(output, "\n");
1294         fprintf(output, " Performance counter stats for ");
1295         if (_target->bpf_str)
1296                 fprintf(output, "\'BPF program(s) %s", _target->bpf_str);
1297         else if (_target->system_wide)
1298                 fprintf(output, "\'system wide");
1299         else if (_target->cpu_list)
1300                 fprintf(output, "\'CPU(s) %s", _target->cpu_list);
1301         else if (!target__has_task(_target)) {
1302                 fprintf(output, "\'%s", argv ? argv[0] : "pipe");
1303                 for (i = 1; argv && (i < argc); i++)
1304                         fprintf(output, " %s", argv[i]);
1305         } else if (_target->pid)
1306                 fprintf(output, "process id \'%s", _target->pid);
1307         else
1308                 fprintf(output, "thread id \'%s", _target->tid);
1309
1310         fprintf(output, "\'");
1311         if (config->run_count > 1)
1312                 fprintf(output, " (%d runs)", config->run_count);
1313         fprintf(output, ":\n\n");
1314
1315         if (config->metric_only)
1316                 print_metric_headers(config, evlist, false);
1317 }
1318
1319 static void print_header_csv(struct perf_stat_config *config,
1320                              struct target *_target __maybe_unused,
1321                              struct evlist *evlist,
1322                              int argc __maybe_unused,
1323                              const char **argv __maybe_unused)
1324 {
1325         if (config->metric_only)
1326                 print_metric_headers(config, evlist, true);
1327 }
1328 static void print_header_json(struct perf_stat_config *config,
1329                               struct target *_target __maybe_unused,
1330                               struct evlist *evlist,
1331                               int argc __maybe_unused,
1332                               const char **argv __maybe_unused)
1333 {
1334         if (config->metric_only)
1335                 print_metric_headers(config, evlist, true);
1336 }
1337
1338 static void print_header(struct perf_stat_config *config,
1339                          struct target *_target,
1340                          struct evlist *evlist,
1341                          int argc, const char **argv)
1342 {
1343         static int num_print_iv;
1344
1345         fflush(stdout);
1346
1347         if (config->interval_clear)
1348                 puts(CONSOLE_CLEAR);
1349
1350         if (num_print_iv == 0 || config->interval_clear) {
1351                 if (config->json_output)
1352                         print_header_json(config, _target, evlist, argc, argv);
1353                 else if (config->csv_output)
1354                         print_header_csv(config, _target, evlist, argc, argv);
1355                 else if (config->interval)
1356                         print_header_interval_std(config, _target, evlist, argc, argv);
1357                 else
1358                         print_header_std(config, _target, evlist, argc, argv);
1359         }
1360
1361         if (num_print_iv++ == 25)
1362                 num_print_iv = 0;
1363 }
1364
1365 static int get_precision(double num)
1366 {
1367         if (num > 1)
1368                 return 0;
1369
1370         return lround(ceil(-log10(num)));
1371 }
1372
1373 static void print_table(struct perf_stat_config *config,
1374                         FILE *output, int precision, double avg)
1375 {
1376         char tmp[64];
1377         int idx, indent = 0;
1378
1379         scnprintf(tmp, 64, " %17.*f", precision, avg);
1380         while (tmp[indent] == ' ')
1381                 indent++;
1382
1383         fprintf(output, "%*s# Table of individual measurements:\n", indent, "");
1384
1385         for (idx = 0; idx < config->run_count; idx++) {
1386                 double run = (double) config->walltime_run[idx] / NSEC_PER_SEC;
1387                 int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5);
1388
1389                 fprintf(output, " %17.*f (%+.*f) ",
1390                         precision, run, precision, run - avg);
1391
1392                 for (h = 0; h < n; h++)
1393                         fprintf(output, "#");
1394
1395                 fprintf(output, "\n");
1396         }
1397
1398         fprintf(output, "\n%*s# Final result:\n", indent, "");
1399 }
1400
1401 static double timeval2double(struct timeval *t)
1402 {
1403         return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC;
1404 }
1405
1406 static void print_footer(struct perf_stat_config *config)
1407 {
1408         double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1409         FILE *output = config->output;
1410
1411         if (config->interval || config->csv_output || config->json_output)
1412                 return;
1413
1414         if (!config->null_run)
1415                 fprintf(output, "\n");
1416
1417         if (config->run_count == 1) {
1418                 fprintf(output, " %17.9f seconds time elapsed", avg);
1419
1420                 if (config->ru_display) {
1421                         double ru_utime = timeval2double(&config->ru_data.ru_utime);
1422                         double ru_stime = timeval2double(&config->ru_data.ru_stime);
1423
1424                         fprintf(output, "\n\n");
1425                         fprintf(output, " %17.9f seconds user\n", ru_utime);
1426                         fprintf(output, " %17.9f seconds sys\n", ru_stime);
1427                 }
1428         } else {
1429                 double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1430                 /*
1431                  * Display at most 2 more significant
1432                  * digits than the stddev inaccuracy.
1433                  */
1434                 int precision = get_precision(sd) + 2;
1435
1436                 if (config->walltime_run_table)
1437                         print_table(config, output, precision, avg);
1438
1439                 fprintf(output, " %17.*f +- %.*f seconds time elapsed",
1440                         precision, avg, precision, sd);
1441
1442                 print_noise_pct(config, sd, avg, /*before_metric=*/false);
1443         }
1444         fprintf(output, "\n\n");
1445
1446         if (config->print_free_counters_hint && sysctl__nmi_watchdog_enabled())
1447                 fprintf(output,
1448 "Some events weren't counted. Try disabling the NMI watchdog:\n"
1449 "       echo 0 > /proc/sys/kernel/nmi_watchdog\n"
1450 "       perf stat ...\n"
1451 "       echo 1 > /proc/sys/kernel/nmi_watchdog\n");
1452
1453         if (config->print_mixed_hw_group_error)
1454                 fprintf(output,
1455                         "The events in group usually have to be from "
1456                         "the same PMU. Try reorganizing the group.\n");
1457 }
1458
1459 static void print_percore(struct perf_stat_config *config,
1460                           struct evsel *counter, struct outstate *os)
1461 {
1462         bool metric_only = config->metric_only;
1463         FILE *output = config->output;
1464         struct cpu_aggr_map *core_map;
1465         int aggr_idx, core_map_len = 0;
1466
1467         if (!config->aggr_map || !config->aggr_get_id)
1468                 return;
1469
1470         if (config->percore_show_thread)
1471                 return print_counter(config, counter, os);
1472
1473         /*
1474          * core_map will hold the aggr_cpu_id for the cores that have been
1475          * printed so that each core is printed just once.
1476          */
1477         core_map = cpu_aggr_map__empty_new(config->aggr_map->nr);
1478         if (core_map == NULL) {
1479                 fprintf(output, "Cannot allocate per-core aggr map for display\n");
1480                 return;
1481         }
1482
1483         cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1484                 struct perf_cpu curr_cpu = config->aggr_map->map[aggr_idx].cpu;
1485                 struct aggr_cpu_id core_id = aggr_cpu_id__core(curr_cpu, NULL);
1486                 bool found = false;
1487
1488                 for (int i = 0; i < core_map_len; i++) {
1489                         if (aggr_cpu_id__equal(&core_map->map[i], &core_id)) {
1490                                 found = true;
1491                                 break;
1492                         }
1493                 }
1494                 if (found)
1495                         continue;
1496
1497                 print_counter_aggrdata(config, counter, aggr_idx, os);
1498
1499                 core_map->map[core_map_len++] = core_id;
1500         }
1501         free(core_map);
1502
1503         if (metric_only)
1504                 fputc('\n', output);
1505 }
1506
1507 static void print_cgroup_counter(struct perf_stat_config *config, struct evlist *evlist,
1508                                  struct outstate *os)
1509 {
1510         struct evsel *counter;
1511
1512         evlist__for_each_entry(evlist, counter) {
1513                 if (os->cgrp != counter->cgrp) {
1514                         if (os->cgrp != NULL)
1515                                 print_metric_end(config, os);
1516
1517                         os->cgrp = counter->cgrp;
1518                         print_metric_begin(config, evlist, os, /*aggr_idx=*/0);
1519                 }
1520
1521                 print_counter(config, counter, os);
1522         }
1523         if (os->cgrp)
1524                 print_metric_end(config, os);
1525 }
1526
1527 void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
1528                             struct target *_target, struct timespec *ts,
1529                             int argc, const char **argv)
1530 {
1531         bool metric_only = config->metric_only;
1532         int interval = config->interval;
1533         struct evsel *counter;
1534         char buf[64];
1535         struct outstate os = {
1536                 .fh = config->output,
1537                 .first = true,
1538         };
1539
1540         if (config->iostat_run)
1541                 evlist->selected = evlist__first(evlist);
1542
1543         if (interval) {
1544                 os.prefix = buf;
1545                 prepare_interval(config, buf, sizeof(buf), ts);
1546         }
1547
1548         print_header(config, _target, evlist, argc, argv);
1549
1550         switch (config->aggr_mode) {
1551         case AGGR_CORE:
1552         case AGGR_CACHE:
1553         case AGGR_DIE:
1554         case AGGR_SOCKET:
1555         case AGGR_NODE:
1556                 if (config->cgroup_list)
1557                         print_aggr_cgroup(config, evlist, &os);
1558                 else
1559                         print_aggr(config, evlist, &os);
1560                 break;
1561         case AGGR_THREAD:
1562         case AGGR_GLOBAL:
1563                 if (config->iostat_run) {
1564                         iostat_print_counters(evlist, config, ts, buf,
1565                                               (iostat_print_counter_t)print_counter, &os);
1566                 } else if (config->cgroup_list) {
1567                         print_cgroup_counter(config, evlist, &os);
1568                 } else {
1569                         print_metric_begin(config, evlist, &os, /*aggr_idx=*/0);
1570                         evlist__for_each_entry(evlist, counter) {
1571                                 print_counter(config, counter, &os);
1572                         }
1573                         print_metric_end(config, &os);
1574                 }
1575                 break;
1576         case AGGR_NONE:
1577                 if (metric_only)
1578                         print_no_aggr_metric(config, evlist, &os);
1579                 else {
1580                         evlist__for_each_entry(evlist, counter) {
1581                                 if (counter->percore)
1582                                         print_percore(config, counter, &os);
1583                                 else
1584                                         print_counter(config, counter, &os);
1585                         }
1586                 }
1587                 break;
1588         case AGGR_MAX:
1589         case AGGR_UNSET:
1590         default:
1591                 break;
1592         }
1593
1594         print_footer(config);
1595
1596         fflush(config->output);
1597 }