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 "debug.h"
  11 #include "evlist.h"
  12 #include "evsel.h"
  13 #include "stat.h"
  14 #include "top.h"
  15 #include "thread_map.h"
  16 #include "cpumap.h"
  17 #include "string2.h"
  18 #include <linux/ctype.h>
  19 #include "cgroup.h"
  20 #include <api/fs/fs.h>
  21 #include "util.h"
  22 #include "iostat.h"
  23 #include "pmu.h"
  24 #include "pmus.h"
  25 #include "tool_pmu.h"
  26
  27 #define CNTR_NOT_SUPPORTED      "<not supported>"
  28 #define CNTR_NOT_COUNTED        "<not counted>"
  29
  30 #define MGROUP_LEN   50
  31 #define METRIC_LEN   38
  32 #define EVNAME_LEN   32
  33 #define COUNTS_LEN   18
  34 #define INTERVAL_LEN 16
  35 #define CGROUP_LEN   16
  36 #define COMM_LEN     16
  37 #define PID_LEN       7
  38 #define CPUS_LEN      4
  39
  40 static int aggr_header_lens[] = {
  41         [AGGR_CORE]     = 18,
  42         [AGGR_CACHE]    = 22,
  43         [AGGR_CLUSTER]  = 20,
  44         [AGGR_DIE]      = 12,
  45         [AGGR_SOCKET]   = 6,
  46         [AGGR_NODE]     = 6,
  47         [AGGR_NONE]     = 6,
  48         [AGGR_THREAD]   = 16,
  49         [AGGR_GLOBAL]   = 0,
  50 };
  51
  52 static const char *aggr_header_csv[] = {
  53         [AGGR_CORE]     =       "core,cpus,",
  54         [AGGR_CACHE]    =       "cache,cpus,",
  55         [AGGR_CLUSTER]  =       "cluster,cpus,",
  56         [AGGR_DIE]      =       "die,cpus,",
  57         [AGGR_SOCKET]   =       "socket,cpus,",
  58         [AGGR_NONE]     =       "cpu,",
  59         [AGGR_THREAD]   =       "comm-pid,",
  60         [AGGR_NODE]     =       "node,",
  61         [AGGR_GLOBAL]   =       ""
  62 };
  63
  64 static const char *aggr_header_std[] = {
  65         [AGGR_CORE]     =       "core",
  66         [AGGR_CACHE]    =       "cache",
  67         [AGGR_CLUSTER]  =       "cluster",
  68         [AGGR_DIE]      =       "die",
  69         [AGGR_SOCKET]   =       "socket",
  70         [AGGR_NONE]     =       "cpu",
  71         [AGGR_THREAD]   =       "comm-pid",
  72         [AGGR_NODE]     =       "node",
  73         [AGGR_GLOBAL]   =       ""
  74 };
  75
  76 const char *metric_threshold_classify__color(enum metric_threshold_classify thresh)
  77 {
  78         const char * const colors[] = {
  79                 "", /* unknown */
  80                 PERF_COLOR_RED,     /* bad */
  81                 PERF_COLOR_MAGENTA, /* nearly bad */
  82                 PERF_COLOR_YELLOW,  /* less good */
  83                 PERF_COLOR_GREEN,   /* good */
  84         };
  85         static_assert(ARRAY_SIZE(colors) - 1  == METRIC_THRESHOLD_GOOD, "missing enum value");
  86         return colors[thresh];
  87 }
  88
  89 static const char *metric_threshold_classify__str(enum metric_threshold_classify thresh)
  90 {
  91         const char * const strs[] = {
  92                 "unknown",
  93                 "bad",
  94                 "nearly bad",
  95                 "less good",
  96                 "good",
  97         };
  98         static_assert(ARRAY_SIZE(strs) - 1  == METRIC_THRESHOLD_GOOD, "missing enum value");
  99         return strs[thresh];
 100 }
 101
 102 static void print_running_std(struct perf_stat_config *config, u64 run, u64 ena)
 103 {
 104         if (run != ena)
 105                 fprintf(config->output, "  (%.2f%%)", 100.0 * run / ena);
 106 }
 107
 108 static void print_running_csv(struct perf_stat_config *config, u64 run, u64 ena)
 109 {
 110         double enabled_percent = 100;
 111
 112         if (run != ena)
 113                 enabled_percent = 100 * run / ena;
 114         fprintf(config->output, "%s%" PRIu64 "%s%.2f",
 115                 config->csv_sep, run, config->csv_sep, enabled_percent);
 116 }
 117
 118 static void print_running_json(struct perf_stat_config *config, u64 run, u64 ena)
 119 {
 120         double enabled_percent = 100;
 121
 122         if (run != ena)
 123                 enabled_percent = 100 * run / ena;
 124         fprintf(config->output, "\"event-runtime\" : %" PRIu64 ", \"pcnt-running\" : %.2f, ",
 125                 run, enabled_percent);
 126 }
 127
 128 static void print_running(struct perf_stat_config *config,
 129                           u64 run, u64 ena, bool before_metric)
 130 {
 131         if (config->json_output) {
 132                 if (before_metric)
 133                         print_running_json(config, run, ena);
 134         } else if (config->csv_output) {
 135                 if (before_metric)
 136                         print_running_csv(config, run, ena);
 137         } else {
 138                 if (!before_metric)
 139                         print_running_std(config, run, ena);
 140         }
 141 }
 142
 143 static void print_noise_pct_std(struct perf_stat_config *config,
 144                                 double pct)
 145 {
 146         if (pct)
 147                 fprintf(config->output, "  ( +-%6.2f%% )", pct);
 148 }
 149
 150 static void print_noise_pct_csv(struct perf_stat_config *config,
 151                                 double pct)
 152 {
 153         fprintf(config->output, "%s%.2f%%", config->csv_sep, pct);
 154 }
 155
 156 static void print_noise_pct_json(struct perf_stat_config *config,
 157                                  double pct)
 158 {
 159         fprintf(config->output, "\"variance\" : %.2f, ", pct);
 160 }
 161
 162 static void print_noise_pct(struct perf_stat_config *config,
 163                             double total, double avg, bool before_metric)
 164 {
 165         double pct = rel_stddev_stats(total, avg);
 166
 167         if (config->json_output) {
 168                 if (before_metric)
 169                         print_noise_pct_json(config, pct);
 170         } else if (config->csv_output) {
 171                 if (before_metric)
 172                         print_noise_pct_csv(config, pct);
 173         } else {
 174                 if (!before_metric)
 175                         print_noise_pct_std(config, pct);
 176         }
 177 }
 178
 179 static void print_noise(struct perf_stat_config *config,
 180                         struct evsel *evsel, double avg, bool before_metric)
 181 {
 182         struct perf_stat_evsel *ps;
 183
 184         if (config->run_count == 1)
 185                 return;
 186
 187         ps = evsel->stats;
 188         print_noise_pct(config, stddev_stats(&ps->res_stats), avg, before_metric);
 189 }
 190
 191 static void print_cgroup_std(struct perf_stat_config *config, const char *cgrp_name)
 192 {
 193         fprintf(config->output, " %-*s", CGROUP_LEN, cgrp_name);
 194 }
 195
 196 static void print_cgroup_csv(struct perf_stat_config *config, const char *cgrp_name)
 197 {
 198         fprintf(config->output, "%s%s", config->csv_sep, cgrp_name);
 199 }
 200
 201 static void print_cgroup_json(struct perf_stat_config *config, const char *cgrp_name)
 202 {
 203         fprintf(config->output, "\"cgroup\" : \"%s\", ", cgrp_name);
 204 }
 205
 206 static void print_cgroup(struct perf_stat_config *config, struct cgroup *cgrp)
 207 {
 208         if (nr_cgroups || config->cgroup_list) {
 209                 const char *cgrp_name = cgrp ? cgrp->name  : "";
 210
 211                 if (config->json_output)
 212                         print_cgroup_json(config, cgrp_name);
 213                 else if (config->csv_output)
 214                         print_cgroup_csv(config, cgrp_name);
 215                 else
 216                         print_cgroup_std(config, cgrp_name);
 217         }
 218 }
 219
 220 static void print_aggr_id_std(struct perf_stat_config *config,
 221                               struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
 222 {
 223         FILE *output = config->output;
 224         int idx = config->aggr_mode;
 225         char buf[128];
 226
 227         switch (config->aggr_mode) {
 228         case AGGR_CORE:
 229                 snprintf(buf, sizeof(buf), "S%d-D%d-C%d", id.socket, id.die, id.core);
 230                 break;
 231         case AGGR_CACHE:
 232                 snprintf(buf, sizeof(buf), "S%d-D%d-L%d-ID%d",
 233                          id.socket, id.die, id.cache_lvl, id.cache);
 234                 break;
 235         case AGGR_CLUSTER:
 236                 snprintf(buf, sizeof(buf), "S%d-D%d-CLS%d", id.socket, id.die, id.cluster);
 237                 break;
 238         case AGGR_DIE:
 239                 snprintf(buf, sizeof(buf), "S%d-D%d", id.socket, id.die);
 240                 break;
 241         case AGGR_SOCKET:
 242                 snprintf(buf, sizeof(buf), "S%d", id.socket);
 243                 break;
 244         case AGGR_NODE:
 245                 snprintf(buf, sizeof(buf), "N%d", id.node);
 246                 break;
 247         case AGGR_NONE:
 248                 if (evsel->percore && !config->percore_show_thread) {
 249                         snprintf(buf, sizeof(buf), "S%d-D%d-C%d ",
 250                                 id.socket, id.die, id.core);
 251                         fprintf(output, "%-*s ",
 252                                 aggr_header_lens[AGGR_CORE], buf);
 253                 } else if (id.cpu.cpu > -1) {
 254                         fprintf(output, "CPU%-*d ",
 255                                 aggr_header_lens[AGGR_NONE] - 3, id.cpu.cpu);
 256                 }
 257                 return;
 258         case AGGR_THREAD:
 259                 fprintf(output, "%*s-%-*d ",
 260                         COMM_LEN, perf_thread_map__comm(evsel->core.threads, id.thread_idx),
 261                         PID_LEN, perf_thread_map__pid(evsel->core.threads, id.thread_idx));
 262                 return;
 263         case AGGR_GLOBAL:
 264         case AGGR_UNSET:
 265         case AGGR_MAX:
 266         default:
 267                 return;
 268         }
 269
 270         fprintf(output, "%-*s %*d ", aggr_header_lens[idx], buf, 4, aggr_nr);
 271 }
 272
 273 static void print_aggr_id_csv(struct perf_stat_config *config,
 274                               struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
 275 {
 276         FILE *output = config->output;
 277         const char *sep = config->csv_sep;
 278
 279         switch (config->aggr_mode) {
 280         case AGGR_CORE:
 281                 fprintf(output, "S%d-D%d-C%d%s%d%s",
 282                         id.socket, id.die, id.core, sep, aggr_nr, sep);
 283                 break;
 284         case AGGR_CACHE:
 285                 fprintf(config->output, "S%d-D%d-L%d-ID%d%s%d%s",
 286                         id.socket, id.die, id.cache_lvl, id.cache, sep, aggr_nr, sep);
 287                 break;
 288         case AGGR_CLUSTER:
 289                 fprintf(config->output, "S%d-D%d-CLS%d%s%d%s",
 290                         id.socket, id.die, id.cluster, sep, aggr_nr, sep);
 291                 break;
 292         case AGGR_DIE:
 293                 fprintf(output, "S%d-D%d%s%d%s",
 294                         id.socket, id.die, sep, aggr_nr, sep);
 295                 break;
 296         case AGGR_SOCKET:
 297                 fprintf(output, "S%d%s%d%s",
 298                         id.socket, sep, aggr_nr, sep);
 299                 break;
 300         case AGGR_NODE:
 301                 fprintf(output, "N%d%s%d%s",
 302                         id.node, sep, aggr_nr, sep);
 303                 break;
 304         case AGGR_NONE:
 305                 if (evsel->percore && !config->percore_show_thread) {
 306                         fprintf(output, "S%d-D%d-C%d%s",
 307                                 id.socket, id.die, id.core, sep);
 308                 } else if (id.cpu.cpu > -1) {
 309                         fprintf(output, "CPU%d%s",
 310                                 id.cpu.cpu, sep);
 311                 }
 312                 break;
 313         case AGGR_THREAD:
 314                 fprintf(output, "%s-%d%s",
 315                         perf_thread_map__comm(evsel->core.threads, id.thread_idx),
 316                         perf_thread_map__pid(evsel->core.threads, id.thread_idx),
 317                         sep);
 318                 break;
 319         case AGGR_GLOBAL:
 320         case AGGR_UNSET:
 321         case AGGR_MAX:
 322         default:
 323                 break;
 324         }
 325 }
 326
 327 static void print_aggr_id_json(struct perf_stat_config *config,
 328                                struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
 329 {
 330         FILE *output = config->output;
 331
 332         switch (config->aggr_mode) {
 333         case AGGR_CORE:
 334                 fprintf(output, "\"core\" : \"S%d-D%d-C%d\", \"aggregate-number\" : %d, ",
 335                         id.socket, id.die, id.core, aggr_nr);
 336                 break;
 337         case AGGR_CACHE:
 338                 fprintf(output, "\"cache\" : \"S%d-D%d-L%d-ID%d\", \"aggregate-number\" : %d, ",
 339                         id.socket, id.die, id.cache_lvl, id.cache, aggr_nr);
 340                 break;
 341         case AGGR_CLUSTER:
 342                 fprintf(output, "\"cluster\" : \"S%d-D%d-CLS%d\", \"aggregate-number\" : %d, ",
 343                         id.socket, id.die, id.cluster, aggr_nr);
 344                 break;
 345         case AGGR_DIE:
 346                 fprintf(output, "\"die\" : \"S%d-D%d\", \"aggregate-number\" : %d, ",
 347                         id.socket, id.die, aggr_nr);
 348                 break;
 349         case AGGR_SOCKET:
 350                 fprintf(output, "\"socket\" : \"S%d\", \"aggregate-number\" : %d, ",
 351                         id.socket, aggr_nr);
 352                 break;
 353         case AGGR_NODE:
 354                 fprintf(output, "\"node\" : \"N%d\", \"aggregate-number\" : %d, ",
 355                         id.node, aggr_nr);
 356                 break;
 357         case AGGR_NONE:
 358                 if (evsel->percore && !config->percore_show_thread) {
 359                         fprintf(output, "\"core\" : \"S%d-D%d-C%d\"",
 360                                 id.socket, id.die, id.core);
 361                 } else if (id.cpu.cpu > -1) {
 362                         fprintf(output, "\"cpu\" : \"%d\", ",
 363                                 id.cpu.cpu);
 364                 }
 365                 break;
 366         case AGGR_THREAD:
 367                 fprintf(output, "\"thread\" : \"%s-%d\", ",
 368                         perf_thread_map__comm(evsel->core.threads, id.thread_idx),
 369                         perf_thread_map__pid(evsel->core.threads, id.thread_idx));
 370                 break;
 371         case AGGR_GLOBAL:
 372         case AGGR_UNSET:
 373         case AGGR_MAX:
 374         default:
 375                 break;
 376         }
 377 }
 378
 379 static void aggr_printout(struct perf_stat_config *config,
 380                           struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr)
 381 {
 382         if (config->json_output)
 383                 print_aggr_id_json(config, evsel, id, aggr_nr);
 384         else if (config->csv_output)
 385                 print_aggr_id_csv(config, evsel, id, aggr_nr);
 386         else
 387                 print_aggr_id_std(config, evsel, id, aggr_nr);
 388 }
 389
 390 struct outstate {
 391         FILE *fh;
 392         bool newline;
 393         bool first;
 394         const char *prefix;
 395         int  nfields;
 396         int  aggr_nr;
 397         struct aggr_cpu_id id;
 398         struct evsel *evsel;
 399         struct cgroup *cgrp;
 400 };
 401
 402 static void new_line_std(struct perf_stat_config *config __maybe_unused,
 403                          void *ctx)
 404 {
 405         struct outstate *os = ctx;
 406
 407         os->newline = true;
 408 }
 409
 410 static inline void __new_line_std_csv(struct perf_stat_config *config,
 411                                       struct outstate *os)
 412 {
 413         fputc('\n', os->fh);
 414         if (os->prefix)
 415                 fputs(os->prefix, os->fh);
 416         aggr_printout(config, os->evsel, os->id, os->aggr_nr);
 417 }
 418
 419 static inline void __new_line_std(struct outstate *os)
 420 {
 421         fprintf(os->fh, "                                                 ");
 422 }
 423
 424 static void do_new_line_std(struct perf_stat_config *config,
 425                             struct outstate *os)
 426 {
 427         __new_line_std_csv(config, os);
 428         if (config->aggr_mode == AGGR_NONE)
 429                 fprintf(os->fh, "        ");
 430         __new_line_std(os);
 431 }
 432
 433 static void print_metric_std(struct perf_stat_config *config,
 434                              void *ctx, enum metric_threshold_classify thresh,
 435                              const char *fmt, const char *unit, double val)
 436 {
 437         struct outstate *os = ctx;
 438         FILE *out = os->fh;
 439         int n;
 440         bool newline = os->newline;
 441         const char *color = metric_threshold_classify__color(thresh);
 442
 443         os->newline = false;
 444
 445         if (unit == NULL || fmt == NULL) {
 446                 fprintf(out, "%-*s", METRIC_LEN, "");
 447                 return;
 448         }
 449
 450         if (newline)
 451                 do_new_line_std(config, os);
 452
 453         n = fprintf(out, " # ");
 454         if (color)
 455                 n += color_fprintf(out, color, fmt, val);
 456         else
 457                 n += fprintf(out, fmt, val);
 458         fprintf(out, " %-*s", METRIC_LEN - n - 1, unit);
 459 }
 460
 461 static void new_line_csv(struct perf_stat_config *config, void *ctx)
 462 {
 463         struct outstate *os = ctx;
 464         int i;
 465
 466         __new_line_std_csv(config, os);
 467         for (i = 0; i < os->nfields; i++)
 468                 fputs(config->csv_sep, os->fh);
 469 }
 470
 471 static void print_metric_csv(struct perf_stat_config *config __maybe_unused,
 472                              void *ctx,
 473                              enum metric_threshold_classify thresh __maybe_unused,
 474                              const char *fmt, const char *unit, double val)
 475 {
 476         struct outstate *os = ctx;
 477         FILE *out = os->fh;
 478         char buf[64], *vals, *ends;
 479
 480         if (unit == NULL || fmt == NULL) {
 481                 fprintf(out, "%s%s", config->csv_sep, config->csv_sep);
 482                 return;
 483         }
 484         snprintf(buf, sizeof(buf), fmt, val);
 485         ends = vals = skip_spaces(buf);
 486         while (isdigit(*ends) || *ends == '.')
 487                 ends++;
 488         *ends = 0;
 489         fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, skip_spaces(unit));
 490 }
 491
 492 static void print_metric_json(struct perf_stat_config *config __maybe_unused,
 493                              void *ctx,
 494                              enum metric_threshold_classify thresh,
 495                              const char *fmt __maybe_unused,
 496                              const char *unit, double val)
 497 {
 498         struct outstate *os = ctx;
 499         FILE *out = os->fh;
 500
 501         if (unit) {
 502                 fprintf(out, "\"metric-value\" : \"%f\", \"metric-unit\" : \"%s\"", val, unit);
 503                 if (thresh != METRIC_THRESHOLD_UNKNOWN) {
 504                         fprintf(out, ", \"metric-threshold\" : \"%s\"",
 505                                 metric_threshold_classify__str(thresh));
 506                 }
 507         }
 508         if (!config->metric_only)
 509                 fprintf(out, "}");
 510 }
 511
 512 static void new_line_json(struct perf_stat_config *config, void *ctx)
 513 {
 514         struct outstate *os = ctx;
 515
 516         fputs("\n{", os->fh);
 517         if (os->prefix)
 518                 fprintf(os->fh, "%s", os->prefix);
 519         aggr_printout(config, os->evsel, os->id, os->aggr_nr);
 520 }
 521
 522 static void print_metricgroup_header_json(struct perf_stat_config *config,
 523                                           void *ctx,
 524                                           const char *metricgroup_name)
 525 {
 526         if (!metricgroup_name)
 527                 return;
 528
 529         fprintf(config->output, "\"metricgroup\" : \"%s\"}", metricgroup_name);
 530         new_line_json(config, ctx);
 531 }
 532
 533 static void print_metricgroup_header_csv(struct perf_stat_config *config,
 534                                          void *ctx,
 535                                          const char *metricgroup_name)
 536 {
 537         struct outstate *os = ctx;
 538         int i;
 539
 540         if (!metricgroup_name) {
 541                 /* Leave space for running and enabling */
 542                 for (i = 0; i < os->nfields - 2; i++)
 543                         fputs(config->csv_sep, os->fh);
 544                 return;
 545         }
 546
 547         for (i = 0; i < os->nfields; i++)
 548                 fputs(config->csv_sep, os->fh);
 549         fprintf(config->output, "%s", metricgroup_name);
 550         new_line_csv(config, ctx);
 551 }
 552
 553 static void print_metricgroup_header_std(struct perf_stat_config *config,
 554                                          void *ctx,
 555                                          const char *metricgroup_name)
 556 {
 557         struct outstate *os = ctx;
 558         int n;
 559
 560         if (!metricgroup_name) {
 561                 __new_line_std(os);
 562                 return;
 563         }
 564
 565         n = fprintf(config->output, " %*s", EVNAME_LEN, metricgroup_name);
 566
 567         fprintf(config->output, "%*s", MGROUP_LEN - n - 1, "");
 568 }
 569
 570 /* Filter out some columns that don't work well in metrics only mode */
 571
 572 static bool valid_only_metric(const char *unit)
 573 {
 574         if (!unit)
 575                 return false;
 576         if (strstr(unit, "/sec") ||
 577             strstr(unit, "CPUs utilized"))
 578                 return false;
 579         return true;
 580 }
 581
 582 static const char *fixunit(char *buf, struct evsel *evsel,
 583                            const char *unit)
 584 {
 585         if (!strncmp(unit, "of all", 6)) {
 586                 snprintf(buf, 1024, "%s %s", evsel__name(evsel),
 587                          unit);
 588                 return buf;
 589         }
 590         return unit;
 591 }
 592
 593 static void print_metric_only(struct perf_stat_config *config,
 594                               void *ctx, enum metric_threshold_classify thresh,
 595                               const char *fmt, const char *unit, double val)
 596 {
 597         struct outstate *os = ctx;
 598         FILE *out = os->fh;
 599         char buf[1024], str[1024];
 600         unsigned mlen = config->metric_only_len;
 601         const char *color = metric_threshold_classify__color(thresh);
 602
 603         if (!valid_only_metric(unit))
 604                 return;
 605         unit = fixunit(buf, os->evsel, unit);
 606         if (mlen < strlen(unit))
 607                 mlen = strlen(unit) + 1;
 608
 609         if (color)
 610                 mlen += strlen(color) + sizeof(PERF_COLOR_RESET) - 1;
 611
 612         color_snprintf(str, sizeof(str), color ?: "", fmt ?: "", val);
 613         fprintf(out, "%*s ", mlen, str);
 614         os->first = false;
 615 }
 616
 617 static void print_metric_only_csv(struct perf_stat_config *config __maybe_unused,
 618                                   void *ctx,
 619                                   enum metric_threshold_classify thresh __maybe_unused,
 620                                   const char *fmt,
 621                                   const char *unit, double val)
 622 {
 623         struct outstate *os = ctx;
 624         FILE *out = os->fh;
 625         char buf[64], *vals, *ends;
 626         char tbuf[1024];
 627
 628         if (!valid_only_metric(unit))
 629                 return;
 630         unit = fixunit(tbuf, os->evsel, unit);
 631         snprintf(buf, sizeof(buf), fmt ?: "", val);
 632         ends = vals = skip_spaces(buf);
 633         while (isdigit(*ends) || *ends == '.')
 634                 ends++;
 635         *ends = 0;
 636         fprintf(out, "%s%s", vals, config->csv_sep);
 637         os->first = false;
 638 }
 639
 640 static void print_metric_only_json(struct perf_stat_config *config __maybe_unused,
 641                                   void *ctx,
 642                                   enum metric_threshold_classify thresh __maybe_unused,
 643                                   const char *fmt,
 644                                   const char *unit, double val)
 645 {
 646         struct outstate *os = ctx;
 647         FILE *out = os->fh;
 648         char buf[64], *ends;
 649         char tbuf[1024];
 650         const char *vals;
 651
 652         if (!valid_only_metric(unit))
 653                 return;
 654         unit = fixunit(tbuf, os->evsel, unit);
 655         if (!unit[0])
 656                 return;
 657         snprintf(buf, sizeof(buf), fmt ?: "", val);
 658         vals = ends = skip_spaces(buf);
 659         while (isdigit(*ends) || *ends == '.')
 660                 ends++;
 661         *ends = 0;
 662         if (!vals[0])
 663                 vals = "none";
 664         fprintf(out, "%s\"%s\" : \"%s\"", os->first ? "" : ", ", unit, vals);
 665         os->first = false;
 666 }
 667
 668 static void new_line_metric(struct perf_stat_config *config __maybe_unused,
 669                             void *ctx __maybe_unused)
 670 {
 671 }
 672
 673 static void print_metric_header(struct perf_stat_config *config,
 674                                 void *ctx,
 675                                 enum metric_threshold_classify thresh __maybe_unused,
 676                                 const char *fmt __maybe_unused,
 677                                 const char *unit, double val __maybe_unused)
 678 {
 679         struct outstate *os = ctx;
 680         char tbuf[1024];
 681
 682         /* In case of iostat, print metric header for first root port only */
 683         if (config->iostat_run &&
 684             os->evsel->priv != os->evsel->evlist->selected->priv)
 685                 return;
 686
 687         if (os->evsel->cgrp != os->cgrp)
 688                 return;
 689
 690         if (!valid_only_metric(unit))
 691                 return;
 692         unit = fixunit(tbuf, os->evsel, unit);
 693
 694         if (config->json_output)
 695                 return;
 696         else if (config->csv_output)
 697                 fprintf(os->fh, "%s%s", unit, config->csv_sep);
 698         else
 699                 fprintf(os->fh, "%*s ", config->metric_only_len, unit);
 700 }
 701
 702 static void print_counter_value_std(struct perf_stat_config *config,
 703                                     struct evsel *evsel, double avg, bool ok)
 704 {
 705         FILE *output = config->output;
 706         double sc =  evsel->scale;
 707         const char *fmt;
 708         const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED;
 709
 710         if (config->big_num)
 711                 fmt = floor(sc) != sc ? "%'*.2f " : "%'*.0f ";
 712         else
 713                 fmt = floor(sc) != sc ? "%*.2f " : "%*.0f ";
 714
 715         if (ok)
 716                 fprintf(output, fmt, COUNTS_LEN, avg);
 717         else
 718                 fprintf(output, "%*s ", COUNTS_LEN, bad_count);
 719
 720         if (evsel->unit)
 721                 fprintf(output, "%-*s ", config->unit_width, evsel->unit);
 722
 723         fprintf(output, "%-*s", EVNAME_LEN, evsel__name(evsel));
 724 }
 725
 726 static void print_counter_value_csv(struct perf_stat_config *config,
 727                                     struct evsel *evsel, double avg, bool ok)
 728 {
 729         FILE *output = config->output;
 730         double sc =  evsel->scale;
 731         const char *sep = config->csv_sep;
 732         const char *fmt = floor(sc) != sc ? "%.2f%s" : "%.0f%s";
 733         const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED;
 734
 735         if (ok)
 736                 fprintf(output, fmt, avg, sep);
 737         else
 738                 fprintf(output, "%s%s", bad_count, sep);
 739
 740         if (evsel->unit)
 741                 fprintf(output, "%s%s", evsel->unit, sep);
 742
 743         fprintf(output, "%s", evsel__name(evsel));
 744 }
 745
 746 static void print_counter_value_json(struct perf_stat_config *config,
 747                                      struct evsel *evsel, double avg, bool ok)
 748 {
 749         FILE *output = config->output;
 750         const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED;
 751
 752         if (ok)
 753                 fprintf(output, "\"counter-value\" : \"%f\", ", avg);
 754         else
 755                 fprintf(output, "\"counter-value\" : \"%s\", ", bad_count);
 756
 757         if (evsel->unit)
 758                 fprintf(output, "\"unit\" : \"%s\", ", evsel->unit);
 759
 760         fprintf(output, "\"event\" : \"%s\", ", evsel__name(evsel));
 761 }
 762
 763 static void print_counter_value(struct perf_stat_config *config,
 764                                 struct evsel *evsel, double avg, bool ok)
 765 {
 766         if (config->json_output)
 767                 print_counter_value_json(config, evsel, avg, ok);
 768         else if (config->csv_output)
 769                 print_counter_value_csv(config, evsel, avg, ok);
 770         else
 771                 print_counter_value_std(config, evsel, avg, ok);
 772 }
 773
 774 static void abs_printout(struct perf_stat_config *config,
 775                          struct aggr_cpu_id id, int aggr_nr,
 776                          struct evsel *evsel, double avg, bool ok)
 777 {
 778         aggr_printout(config, evsel, id, aggr_nr);
 779         print_counter_value(config, evsel, avg, ok);
 780         print_cgroup(config, evsel->cgrp);
 781 }
 782
 783 static bool is_mixed_hw_group(struct evsel *counter)
 784 {
 785         struct evlist *evlist = counter->evlist;
 786         u32 pmu_type = counter->core.attr.type;
 787         struct evsel *pos;
 788
 789         if (counter->core.nr_members < 2)
 790                 return false;
 791
 792         evlist__for_each_entry(evlist, pos) {
 793                 /* software events can be part of any hardware group */
 794                 if (pos->core.attr.type == PERF_TYPE_SOFTWARE)
 795                         continue;
 796                 if (pmu_type == PERF_TYPE_SOFTWARE) {
 797                         pmu_type = pos->core.attr.type;
 798                         continue;
 799                 }
 800                 if (pmu_type != pos->core.attr.type)
 801                         return true;
 802         }
 803
 804         return false;
 805 }
 806
 807 static bool evlist__has_hybrid(struct evlist *evlist)
 808 {
 809         struct evsel *evsel;
 810
 811         if (perf_pmus__num_core_pmus() == 1)
 812                 return false;
 813
 814         evlist__for_each_entry(evlist, evsel) {
 815                 if (evsel->core.is_pmu_core)
 816                         return true;
 817         }
 818
 819         return false;
 820 }
 821
 822 static void printout(struct perf_stat_config *config, struct outstate *os,
 823                      double uval, u64 run, u64 ena, double noise, int aggr_idx)
 824 {
 825         struct perf_stat_output_ctx out;
 826         print_metric_t pm;
 827         new_line_t nl;
 828         print_metricgroup_header_t pmh;
 829         bool ok = true;
 830         struct evsel *counter = os->evsel;
 831
 832         if (config->csv_output) {
 833                 pm = config->metric_only ? print_metric_only_csv : print_metric_csv;
 834                 nl = config->metric_only ? new_line_metric : new_line_csv;
 835                 pmh = print_metricgroup_header_csv;
 836                 os->nfields = 4 + (counter->cgrp ? 1 : 0);
 837         } else if (config->json_output) {
 838                 pm = config->metric_only ? print_metric_only_json : print_metric_json;
 839                 nl = config->metric_only ? new_line_metric : new_line_json;
 840                 pmh = print_metricgroup_header_json;
 841         } else {
 842                 pm = config->metric_only ? print_metric_only : print_metric_std;
 843                 nl = config->metric_only ? new_line_metric : new_line_std;
 844                 pmh = print_metricgroup_header_std;
 845         }
 846
 847         if (run == 0 || ena == 0 || counter->counts->scaled == -1) {
 848                 if (config->metric_only) {
 849                         pm(config, os, METRIC_THRESHOLD_UNKNOWN, "", "", 0);
 850                         return;
 851                 }
 852
 853                 ok = false;
 854
 855                 if (counter->supported) {
 856                         if (!evlist__has_hybrid(counter->evlist)) {
 857                                 config->print_free_counters_hint = 1;
 858                                 if (is_mixed_hw_group(counter))
 859                                         config->print_mixed_hw_group_error = 1;
 860                         }
 861                 }
 862         }
 863
 864         out.print_metric = pm;
 865         out.new_line = nl;
 866         out.print_metricgroup_header = pmh;
 867         out.ctx = os;
 868         out.force_header = false;
 869
 870         if (!config->metric_only && !counter->default_metricgroup) {
 871                 abs_printout(config, os->id, os->aggr_nr, counter, uval, ok);
 872
 873                 print_noise(config, counter, noise, /*before_metric=*/true);
 874                 print_running(config, run, ena, /*before_metric=*/true);
 875         }
 876
 877         if (ok) {
 878                 if (!config->metric_only && counter->default_metricgroup) {
 879                         void *from = NULL;
 880
 881                         aggr_printout(config, os->evsel, os->id, os->aggr_nr);
 882                         /* Print out all the metricgroup with the same metric event. */
 883                         do {
 884                                 int num = 0;
 885
 886                                 /* Print out the new line for the next new metricgroup. */
 887                                 if (from) {
 888                                         if (config->json_output)
 889                                                 new_line_json(config, (void *)os);
 890                                         else
 891                                                 __new_line_std_csv(config, os);
 892                                 }
 893
 894                                 print_noise(config, counter, noise, /*before_metric=*/true);
 895                                 print_running(config, run, ena, /*before_metric=*/true);
 896                                 from = perf_stat__print_shadow_stats_metricgroup(config, counter, aggr_idx,
 897                                                                                  &num, from, &out,
 898                                                                                  &config->metric_events);
 899                         } while (from != NULL);
 900                 } else
 901                         perf_stat__print_shadow_stats(config, counter, uval, aggr_idx,
 902                                                       &out, &config->metric_events);
 903         } else {
 904                 pm(config, os, METRIC_THRESHOLD_UNKNOWN, /*format=*/NULL, /*unit=*/"", /*val=*/0);
 905         }
 906
 907         if (!config->metric_only) {
 908                 print_noise(config, counter, noise, /*before_metric=*/false);
 909                 print_running(config, run, ena, /*before_metric=*/false);
 910         }
 911 }
 912
 913 static void uniquify_event_name(struct evsel *counter)
 914 {
 915         const char *name, *pmu_name;
 916         char *new_name, *config;
 917         int ret;
 918
 919         /* The evsel was already uniquified. */
 920         if (counter->uniquified_name)
 921                 return;
 922
 923         /* Avoid checking to uniquify twice. */
 924         counter->uniquified_name = true;
 925
 926         /* The evsel has a "name=" config term or is from libpfm. */
 927         if (counter->use_config_name || counter->is_libpfm_event)
 928                 return;
 929
 930         /* Legacy no PMU event, don't uniquify. */
 931         if  (!counter->pmu ||
 932              (counter->pmu->type < PERF_TYPE_MAX && counter->pmu->type != PERF_TYPE_RAW))
 933                 return;
 934
 935         /* A sysfs or json event replacing a legacy event, don't uniquify. */
 936         if (counter->pmu->is_core && counter->alternate_hw_config != PERF_COUNT_HW_MAX)
 937                 return;
 938
 939         name = evsel__name(counter);
 940         pmu_name = counter->pmu->name;
 941         /* Already prefixed by the PMU name. */
 942         if (!strncmp(name, pmu_name, strlen(pmu_name)))
 943                 return;
 944
 945         config = strchr(name, '/');
 946         if (config) {
 947                 int len = config - name;
 948
 949                 if (config[1] == '/') {
 950                         /* case: event// */
 951                         ret = asprintf(&new_name, "%s/%.*s/%s", pmu_name, len, name, config + 2);
 952                 } else {
 953                         /* case: event/.../ */
 954                         ret = asprintf(&new_name, "%s/%.*s,%s", pmu_name, len, name, config + 1);
 955                 }
 956         } else {
 957                 config = strchr(name, ':');
 958                 if (config) {
 959                         /* case: event:.. */
 960                         int len = config - name;
 961
 962                         ret = asprintf(&new_name, "%s/%.*s/%s", pmu_name, len, name, config + 1);
 963                 } else {
 964                         /* case: event */
 965                         ret = asprintf(&new_name, "%s/%s/", pmu_name, name);
 966                 }
 967         }
 968         if (ret > 0) {
 969                 free(counter->name);
 970                 counter->name = new_name;
 971         } else {
 972                 /* ENOMEM from asprintf. */
 973                 counter->uniquified_name = false;
 974         }
 975 }
 976
 977 static bool hybrid_uniquify(struct evsel *evsel, struct perf_stat_config *config)
 978 {
 979         return evsel__is_hybrid(evsel) && !config->hybrid_merge;
 980 }
 981
 982 static void uniquify_counter(struct perf_stat_config *config, struct evsel *counter)
 983 {
 984         if (config->aggr_mode == AGGR_NONE || hybrid_uniquify(counter, config))
 985                 uniquify_event_name(counter);
 986 }
 987
 988 /**
 989  * should_skip_zero_count() - Check if the event should print 0 values.
 990  * @config: The perf stat configuration (including aggregation mode).
 991  * @counter: The evsel with its associated cpumap.
 992  * @id: The aggregation id that is being queried.
 993  *
 994  * Due to mismatch between the event cpumap or thread-map and the
 995  * aggregation mode, sometimes it'd iterate the counter with the map
 996  * which does not contain any values.
 997  *
 998  * For example, uncore events have dedicated CPUs to manage them,
 999  * result for other CPUs should be zero and skipped.
1000  *
1001  * Return: %true if the value should NOT be printed, %false if the value
1002  * needs to be printed like "<not counted>" or "<not supported>".
1003  */
1004 static bool should_skip_zero_counter(struct perf_stat_config *config,
1005                                      struct evsel *counter,
1006                                      const struct aggr_cpu_id *id)
1007 {
1008         struct perf_cpu cpu;
1009         int idx;
1010
1011         /*
1012          * Skip unsupported default events when not verbose. (default events
1013          * are all marked 'skippable').
1014          */
1015         if (verbose == 0 && counter->skippable && !counter->supported)
1016                 return true;
1017
1018         /*
1019          * Skip value 0 when enabling --per-thread globally,
1020          * otherwise it will have too many 0 output.
1021          */
1022         if (config->aggr_mode == AGGR_THREAD && config->system_wide)
1023                 return true;
1024
1025         /*
1026          * Many tool events are only gathered on the first index, skip other
1027          * zero values.
1028          */
1029         if (evsel__is_tool(counter)) {
1030                 struct aggr_cpu_id own_id =
1031                         config->aggr_get_id(config, (struct perf_cpu){ .cpu = 0 });
1032
1033                 return !aggr_cpu_id__equal(id, &own_id);
1034         }
1035
1036         /*
1037          * Skip value 0 when it's an uncore event and the given aggr id
1038          * does not belong to the PMU cpumask.
1039          */
1040         if (!counter->pmu || !counter->pmu->is_uncore)
1041                 return false;
1042
1043         perf_cpu_map__for_each_cpu(cpu, idx, counter->pmu->cpus) {
1044                 struct aggr_cpu_id own_id = config->aggr_get_id(config, cpu);
1045
1046                 if (aggr_cpu_id__equal(id, &own_id))
1047                         return false;
1048         }
1049         return true;
1050 }
1051
1052 static void print_counter_aggrdata(struct perf_stat_config *config,
1053                                    struct evsel *counter, int aggr_idx,
1054                                    struct outstate *os)
1055 {
1056         FILE *output = config->output;
1057         u64 ena, run, val;
1058         double uval;
1059         struct perf_stat_evsel *ps = counter->stats;
1060         struct perf_stat_aggr *aggr = &ps->aggr[aggr_idx];
1061         struct aggr_cpu_id id = config->aggr_map->map[aggr_idx];
1062         double avg = aggr->counts.val;
1063         bool metric_only = config->metric_only;
1064
1065         os->id = id;
1066         os->aggr_nr = aggr->nr;
1067         os->evsel = counter;
1068
1069         /* Skip already merged uncore/hybrid events */
1070         if (counter->merged_stat)
1071                 return;
1072
1073         uniquify_counter(config, counter);
1074
1075         val = aggr->counts.val;
1076         ena = aggr->counts.ena;
1077         run = aggr->counts.run;
1078
1079         if (perf_stat__skip_metric_event(counter, &config->metric_events, ena, run))
1080                 return;
1081
1082         if (val == 0 && should_skip_zero_counter(config, counter, &id))
1083                 return;
1084
1085         if (!metric_only) {
1086                 if (config->json_output)
1087                         fputc('{', output);
1088                 if (os->prefix)
1089                         fprintf(output, "%s", os->prefix);
1090                 else if (config->summary && config->csv_output &&
1091                          !config->no_csv_summary && !config->interval)
1092                         fprintf(output, "%s%s", "summary", config->csv_sep);
1093         }
1094
1095         uval = val * counter->scale;
1096
1097         printout(config, os, uval, run, ena, avg, aggr_idx);
1098
1099         if (!metric_only)
1100                 fputc('\n', output);
1101 }
1102
1103 static void print_metric_begin(struct perf_stat_config *config,
1104                                struct evlist *evlist,
1105                                struct outstate *os, int aggr_idx)
1106 {
1107         struct perf_stat_aggr *aggr;
1108         struct aggr_cpu_id id;
1109         struct evsel *evsel;
1110
1111         os->first = true;
1112         if (!config->metric_only)
1113                 return;
1114
1115         if (config->json_output)
1116                 fputc('{', config->output);
1117         if (os->prefix)
1118                 fprintf(config->output, "%s", os->prefix);
1119
1120         evsel = evlist__first(evlist);
1121         id = config->aggr_map->map[aggr_idx];
1122         aggr = &evsel->stats->aggr[aggr_idx];
1123         aggr_printout(config, evsel, id, aggr->nr);
1124
1125         print_cgroup(config, os->cgrp ? : evsel->cgrp);
1126 }
1127
1128 static void print_metric_end(struct perf_stat_config *config, struct outstate *os)
1129 {
1130         FILE *output = config->output;
1131
1132         if (!config->metric_only)
1133                 return;
1134
1135         if (config->json_output) {
1136                 if (os->first)
1137                         fputs("\"metric-value\" : \"none\"", output);
1138                 fputc('}', output);
1139         }
1140         fputc('\n', output);
1141 }
1142
1143 static void print_aggr(struct perf_stat_config *config,
1144                        struct evlist *evlist,
1145                        struct outstate *os)
1146 {
1147         struct evsel *counter;
1148         int aggr_idx;
1149
1150         if (!config->aggr_map || !config->aggr_get_id)
1151                 return;
1152
1153         /*
1154          * With metric_only everything is on a single line.
1155          * Without each counter has its own line.
1156          */
1157         cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1158                 print_metric_begin(config, evlist, os, aggr_idx);
1159
1160                 evlist__for_each_entry(evlist, counter) {
1161                         print_counter_aggrdata(config, counter, aggr_idx, os);
1162                 }
1163                 print_metric_end(config, os);
1164         }
1165 }
1166
1167 static void print_aggr_cgroup(struct perf_stat_config *config,
1168                               struct evlist *evlist,
1169                               struct outstate *os)
1170 {
1171         struct evsel *counter, *evsel;
1172         int aggr_idx;
1173
1174         if (!config->aggr_map || !config->aggr_get_id)
1175                 return;
1176
1177         evlist__for_each_entry(evlist, evsel) {
1178                 if (os->cgrp == evsel->cgrp)
1179                         continue;
1180
1181                 os->cgrp = evsel->cgrp;
1182
1183                 cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1184                         print_metric_begin(config, evlist, os, aggr_idx);
1185
1186                         evlist__for_each_entry(evlist, counter) {
1187                                 if (counter->cgrp != os->cgrp)
1188                                         continue;
1189
1190                                 print_counter_aggrdata(config, counter, aggr_idx, os);
1191                         }
1192                         print_metric_end(config, os);
1193                 }
1194         }
1195 }
1196
1197 static void print_counter(struct perf_stat_config *config,
1198                           struct evsel *counter, struct outstate *os)
1199 {
1200         int aggr_idx;
1201
1202         /* AGGR_THREAD doesn't have config->aggr_get_id */
1203         if (!config->aggr_map)
1204                 return;
1205
1206         cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1207                 print_counter_aggrdata(config, counter, aggr_idx, os);
1208         }
1209 }
1210
1211 static void print_no_aggr_metric(struct perf_stat_config *config,
1212                                  struct evlist *evlist,
1213                                  struct outstate *os)
1214 {
1215         int all_idx;
1216         struct perf_cpu cpu;
1217
1218         perf_cpu_map__for_each_cpu(cpu, all_idx, evlist->core.user_requested_cpus) {
1219                 struct evsel *counter;
1220                 bool first = true;
1221
1222                 evlist__for_each_entry(evlist, counter) {
1223                         u64 ena, run, val;
1224                         double uval;
1225                         struct perf_stat_evsel *ps = counter->stats;
1226                         int aggr_idx = 0;
1227
1228                         if (!perf_cpu_map__has(evsel__cpus(counter), cpu))
1229                                 continue;
1230
1231                         cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1232                                 if (config->aggr_map->map[aggr_idx].cpu.cpu == cpu.cpu)
1233                                         break;
1234                         }
1235
1236                         os->evsel = counter;
1237                         os->id = aggr_cpu_id__cpu(cpu, /*data=*/NULL);
1238                         if (first) {
1239                                 print_metric_begin(config, evlist, os, aggr_idx);
1240                                 first = false;
1241                         }
1242                         val = ps->aggr[aggr_idx].counts.val;
1243                         ena = ps->aggr[aggr_idx].counts.ena;
1244                         run = ps->aggr[aggr_idx].counts.run;
1245
1246                         uval = val * counter->scale;
1247                         printout(config, os, uval, run, ena, 1.0, aggr_idx);
1248                 }
1249                 if (!first)
1250                         print_metric_end(config, os);
1251         }
1252 }
1253
1254 static void print_metric_headers_std(struct perf_stat_config *config,
1255                                      bool no_indent)
1256 {
1257         fputc(' ', config->output);
1258
1259         if (!no_indent) {
1260                 int len = aggr_header_lens[config->aggr_mode];
1261
1262                 if (nr_cgroups || config->cgroup_list)
1263                         len += CGROUP_LEN + 1;
1264
1265                 fprintf(config->output, "%*s", len, "");
1266         }
1267 }
1268
1269 static void print_metric_headers_csv(struct perf_stat_config *config,
1270                                      bool no_indent __maybe_unused)
1271 {
1272         const char *p;
1273
1274         if (config->interval)
1275                 fprintf(config->output, "time%s", config->csv_sep);
1276         if (config->iostat_run)
1277                 return;
1278
1279         p = aggr_header_csv[config->aggr_mode];
1280         while (*p) {
1281                 if (*p == ',')
1282                         fputs(config->csv_sep, config->output);
1283                 else
1284                         fputc(*p, config->output);
1285                 p++;
1286         }
1287 }
1288
1289 static void print_metric_headers_json(struct perf_stat_config *config __maybe_unused,
1290                                       bool no_indent __maybe_unused)
1291 {
1292 }
1293
1294 static void print_metric_headers(struct perf_stat_config *config,
1295                                  struct evlist *evlist, bool no_indent)
1296 {
1297         struct evsel *counter;
1298         struct outstate os = {
1299                 .fh = config->output
1300         };
1301         struct perf_stat_output_ctx out = {
1302                 .ctx = &os,
1303                 .print_metric = print_metric_header,
1304                 .new_line = new_line_metric,
1305                 .force_header = true,
1306         };
1307
1308         if (config->json_output)
1309                 print_metric_headers_json(config, no_indent);
1310         else if (config->csv_output)
1311                 print_metric_headers_csv(config, no_indent);
1312         else
1313                 print_metric_headers_std(config, no_indent);
1314
1315         if (config->iostat_run)
1316                 iostat_print_header_prefix(config);
1317
1318         if (config->cgroup_list)
1319                 os.cgrp = evlist__first(evlist)->cgrp;
1320
1321         /* Print metrics headers only */
1322         evlist__for_each_entry(evlist, counter) {
1323                 if (!config->iostat_run &&
1324                     config->aggr_mode != AGGR_NONE && counter->metric_leader != counter)
1325                         continue;
1326
1327                 os.evsel = counter;
1328
1329                 perf_stat__print_shadow_stats(config, counter, 0,
1330                                               0,
1331                                               &out,
1332                                               &config->metric_events);
1333         }
1334
1335         if (!config->json_output)
1336                 fputc('\n', config->output);
1337 }
1338
1339 static void prepare_interval(struct perf_stat_config *config,
1340                              char *prefix, size_t len, struct timespec *ts)
1341 {
1342         if (config->iostat_run)
1343                 return;
1344
1345         if (config->json_output)
1346                 scnprintf(prefix, len, "\"interval\" : %lu.%09lu, ",
1347                           (unsigned long) ts->tv_sec, ts->tv_nsec);
1348         else if (config->csv_output)
1349                 scnprintf(prefix, len, "%lu.%09lu%s",
1350                           (unsigned long) ts->tv_sec, ts->tv_nsec, config->csv_sep);
1351         else
1352                 scnprintf(prefix, len, "%6lu.%09lu ",
1353                           (unsigned long) ts->tv_sec, ts->tv_nsec);
1354 }
1355
1356 static void print_header_interval_std(struct perf_stat_config *config,
1357                                       struct target *_target __maybe_unused,
1358                                       struct evlist *evlist,
1359                                       int argc __maybe_unused,
1360                                       const char **argv __maybe_unused)
1361 {
1362         FILE *output = config->output;
1363
1364         switch (config->aggr_mode) {
1365         case AGGR_NODE:
1366         case AGGR_SOCKET:
1367         case AGGR_DIE:
1368         case AGGR_CLUSTER:
1369         case AGGR_CACHE:
1370         case AGGR_CORE:
1371                 fprintf(output, "#%*s %-*s cpus",
1372                         INTERVAL_LEN - 1, "time",
1373                         aggr_header_lens[config->aggr_mode],
1374                         aggr_header_std[config->aggr_mode]);
1375                 break;
1376         case AGGR_NONE:
1377                 fprintf(output, "#%*s %-*s",
1378                         INTERVAL_LEN - 1, "time",
1379                         aggr_header_lens[config->aggr_mode],
1380                         aggr_header_std[config->aggr_mode]);
1381                 break;
1382         case AGGR_THREAD:
1383                 fprintf(output, "#%*s %*s-%-*s",
1384                         INTERVAL_LEN - 1, "time",
1385                         COMM_LEN, "comm", PID_LEN, "pid");
1386                 break;
1387         case AGGR_GLOBAL:
1388         default:
1389                 if (!config->iostat_run)
1390                         fprintf(output, "#%*s",
1391                                 INTERVAL_LEN - 1, "time");
1392         case AGGR_UNSET:
1393         case AGGR_MAX:
1394                 break;
1395         }
1396
1397         if (config->metric_only)
1398                 print_metric_headers(config, evlist, true);
1399         else
1400                 fprintf(output, " %*s %*s events\n",
1401                         COUNTS_LEN, "counts", config->unit_width, "unit");
1402 }
1403
1404 static void print_header_std(struct perf_stat_config *config,
1405                              struct target *_target, struct evlist *evlist,
1406                              int argc, const char **argv)
1407 {
1408         FILE *output = config->output;
1409         int i;
1410
1411         fprintf(output, "\n");
1412         fprintf(output, " Performance counter stats for ");
1413         if (_target->bpf_str)
1414                 fprintf(output, "\'BPF program(s) %s", _target->bpf_str);
1415         else if (_target->system_wide)
1416                 fprintf(output, "\'system wide");
1417         else if (_target->cpu_list)
1418                 fprintf(output, "\'CPU(s) %s", _target->cpu_list);
1419         else if (!target__has_task(_target)) {
1420                 fprintf(output, "\'%s", argv ? argv[0] : "pipe");
1421                 for (i = 1; argv && (i < argc); i++)
1422                         fprintf(output, " %s", argv[i]);
1423         } else if (_target->pid)
1424                 fprintf(output, "process id \'%s", _target->pid);
1425         else
1426                 fprintf(output, "thread id \'%s", _target->tid);
1427
1428         fprintf(output, "\'");
1429         if (config->run_count > 1)
1430                 fprintf(output, " (%d runs)", config->run_count);
1431         fprintf(output, ":\n\n");
1432
1433         if (config->metric_only)
1434                 print_metric_headers(config, evlist, false);
1435 }
1436
1437 static void print_header_csv(struct perf_stat_config *config,
1438                              struct target *_target __maybe_unused,
1439                              struct evlist *evlist,
1440                              int argc __maybe_unused,
1441                              const char **argv __maybe_unused)
1442 {
1443         if (config->metric_only)
1444                 print_metric_headers(config, evlist, true);
1445 }
1446 static void print_header_json(struct perf_stat_config *config,
1447                               struct target *_target __maybe_unused,
1448                               struct evlist *evlist,
1449                               int argc __maybe_unused,
1450                               const char **argv __maybe_unused)
1451 {
1452         if (config->metric_only)
1453                 print_metric_headers(config, evlist, true);
1454 }
1455
1456 static void print_header(struct perf_stat_config *config,
1457                          struct target *_target,
1458                          struct evlist *evlist,
1459                          int argc, const char **argv)
1460 {
1461         static int num_print_iv;
1462
1463         fflush(stdout);
1464
1465         if (config->interval_clear)
1466                 puts(CONSOLE_CLEAR);
1467
1468         if (num_print_iv == 0 || config->interval_clear) {
1469                 if (config->json_output)
1470                         print_header_json(config, _target, evlist, argc, argv);
1471                 else if (config->csv_output)
1472                         print_header_csv(config, _target, evlist, argc, argv);
1473                 else if (config->interval)
1474                         print_header_interval_std(config, _target, evlist, argc, argv);
1475                 else
1476                         print_header_std(config, _target, evlist, argc, argv);
1477         }
1478
1479         if (num_print_iv++ == 25)
1480                 num_print_iv = 0;
1481 }
1482
1483 static int get_precision(double num)
1484 {
1485         if (num > 1)
1486                 return 0;
1487
1488         return lround(ceil(-log10(num)));
1489 }
1490
1491 static void print_table(struct perf_stat_config *config,
1492                         FILE *output, int precision, double avg)
1493 {
1494         char tmp[64];
1495         int idx, indent = 0;
1496
1497         scnprintf(tmp, 64, " %17.*f", precision, avg);
1498         while (tmp[indent] == ' ')
1499                 indent++;
1500
1501         fprintf(output, "%*s# Table of individual measurements:\n", indent, "");
1502
1503         for (idx = 0; idx < config->run_count; idx++) {
1504                 double run = (double) config->walltime_run[idx] / NSEC_PER_SEC;
1505                 int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5);
1506
1507                 fprintf(output, " %17.*f (%+.*f) ",
1508                         precision, run, precision, run - avg);
1509
1510                 for (h = 0; h < n; h++)
1511                         fprintf(output, "#");
1512
1513                 fprintf(output, "\n");
1514         }
1515
1516         fprintf(output, "\n%*s# Final result:\n", indent, "");
1517 }
1518
1519 static double timeval2double(struct timeval *t)
1520 {
1521         return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC;
1522 }
1523
1524 static void print_footer(struct perf_stat_config *config)
1525 {
1526         double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1527         FILE *output = config->output;
1528
1529         if (config->interval || config->csv_output || config->json_output)
1530                 return;
1531
1532         if (!config->null_run)
1533                 fprintf(output, "\n");
1534
1535         if (config->run_count == 1) {
1536                 fprintf(output, " %17.9f seconds time elapsed", avg);
1537
1538                 if (config->ru_display) {
1539                         double ru_utime = timeval2double(&config->ru_data.ru_utime);
1540                         double ru_stime = timeval2double(&config->ru_data.ru_stime);
1541
1542                         fprintf(output, "\n\n");
1543                         fprintf(output, " %17.9f seconds user\n", ru_utime);
1544                         fprintf(output, " %17.9f seconds sys\n", ru_stime);
1545                 }
1546         } else {
1547                 double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1548                 /*
1549                  * Display at most 2 more significant
1550                  * digits than the stddev inaccuracy.
1551                  */
1552                 int precision = get_precision(sd) + 2;
1553
1554                 if (config->walltime_run_table)
1555                         print_table(config, output, precision, avg);
1556
1557                 fprintf(output, " %17.*f +- %.*f seconds time elapsed",
1558                         precision, avg, precision, sd);
1559
1560                 print_noise_pct(config, sd, avg, /*before_metric=*/false);
1561         }
1562         fprintf(output, "\n\n");
1563
1564         if (config->print_free_counters_hint && sysctl__nmi_watchdog_enabled())
1565                 fprintf(output,
1566 "Some events weren't counted. Try disabling the NMI watchdog:\n"
1567 "       echo 0 > /proc/sys/kernel/nmi_watchdog\n"
1568 "       perf stat ...\n"
1569 "       echo 1 > /proc/sys/kernel/nmi_watchdog\n");
1570
1571         if (config->print_mixed_hw_group_error)
1572                 fprintf(output,
1573                         "The events in group usually have to be from "
1574                         "the same PMU. Try reorganizing the group.\n");
1575 }
1576
1577 static void print_percore(struct perf_stat_config *config,
1578                           struct evsel *counter, struct outstate *os)
1579 {
1580         bool metric_only = config->metric_only;
1581         FILE *output = config->output;
1582         struct cpu_aggr_map *core_map;
1583         int aggr_idx, core_map_len = 0;
1584
1585         if (!config->aggr_map || !config->aggr_get_id)
1586                 return;
1587
1588         if (config->percore_show_thread)
1589                 return print_counter(config, counter, os);
1590
1591         /*
1592          * core_map will hold the aggr_cpu_id for the cores that have been
1593          * printed so that each core is printed just once.
1594          */
1595         core_map = cpu_aggr_map__empty_new(config->aggr_map->nr);
1596         if (core_map == NULL) {
1597                 fprintf(output, "Cannot allocate per-core aggr map for display\n");
1598                 return;
1599         }
1600
1601         cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) {
1602                 struct perf_cpu curr_cpu = config->aggr_map->map[aggr_idx].cpu;
1603                 struct aggr_cpu_id core_id = aggr_cpu_id__core(curr_cpu, NULL);
1604                 bool found = false;
1605
1606                 for (int i = 0; i < core_map_len; i++) {
1607                         if (aggr_cpu_id__equal(&core_map->map[i], &core_id)) {
1608                                 found = true;
1609                                 break;
1610                         }
1611                 }
1612                 if (found)
1613                         continue;
1614
1615                 print_counter_aggrdata(config, counter, aggr_idx, os);
1616
1617                 core_map->map[core_map_len++] = core_id;
1618         }
1619         free(core_map);
1620
1621         if (metric_only)
1622                 fputc('\n', output);
1623 }
1624
1625 static void print_cgroup_counter(struct perf_stat_config *config, struct evlist *evlist,
1626                                  struct outstate *os)
1627 {
1628         struct evsel *counter;
1629
1630         evlist__for_each_entry(evlist, counter) {
1631                 if (os->cgrp != counter->cgrp) {
1632                         if (os->cgrp != NULL)
1633                                 print_metric_end(config, os);
1634
1635                         os->cgrp = counter->cgrp;
1636                         print_metric_begin(config, evlist, os, /*aggr_idx=*/0);
1637                 }
1638
1639                 print_counter(config, counter, os);
1640         }
1641         if (os->cgrp)
1642                 print_metric_end(config, os);
1643 }
1644
1645 static void disable_uniquify(struct evlist *evlist)
1646 {
1647         struct evsel *counter;
1648         struct perf_pmu *last_pmu = NULL;
1649         bool first = true;
1650
1651         evlist__for_each_entry(evlist, counter) {
1652                 /* If PMUs vary then uniquify can be useful. */
1653                 if (!first && counter->pmu != last_pmu)
1654                         return;
1655                 first = false;
1656                 if (counter->pmu) {
1657                         /* Allow uniquify for uncore PMUs. */
1658                         if (!counter->pmu->is_core)
1659                                 return;
1660                         /* Keep hybrid event names uniquified for clarity. */
1661                         if (perf_pmus__num_core_pmus() > 1)
1662                                 return;
1663                 }
1664         }
1665         evlist__for_each_entry_continue(evlist, counter) {
1666                 counter->uniquified_name = true;
1667         }
1668 }
1669
1670 void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
1671                             struct target *_target, struct timespec *ts,
1672                             int argc, const char **argv)
1673 {
1674         bool metric_only = config->metric_only;
1675         int interval = config->interval;
1676         struct evsel *counter;
1677         char buf[64];
1678         struct outstate os = {
1679                 .fh = config->output,
1680                 .first = true,
1681         };
1682
1683         disable_uniquify(evlist);
1684
1685         if (config->iostat_run)
1686                 evlist->selected = evlist__first(evlist);
1687
1688         if (interval) {
1689                 os.prefix = buf;
1690                 prepare_interval(config, buf, sizeof(buf), ts);
1691         }
1692
1693         print_header(config, _target, evlist, argc, argv);
1694
1695         switch (config->aggr_mode) {
1696         case AGGR_CORE:
1697         case AGGR_CACHE:
1698         case AGGR_CLUSTER:
1699         case AGGR_DIE:
1700         case AGGR_SOCKET:
1701         case AGGR_NODE:
1702                 if (config->cgroup_list)
1703                         print_aggr_cgroup(config, evlist, &os);
1704                 else
1705                         print_aggr(config, evlist, &os);
1706                 break;
1707         case AGGR_THREAD:
1708         case AGGR_GLOBAL:
1709                 if (config->iostat_run) {
1710                         iostat_print_counters(evlist, config, ts, buf,
1711                                               (iostat_print_counter_t)print_counter, &os);
1712                 } else if (config->cgroup_list) {
1713                         print_cgroup_counter(config, evlist, &os);
1714                 } else {
1715                         print_metric_begin(config, evlist, &os, /*aggr_idx=*/0);
1716                         evlist__for_each_entry(evlist, counter) {
1717                                 print_counter(config, counter, &os);
1718                         }
1719                         print_metric_end(config, &os);
1720                 }
1721                 break;
1722         case AGGR_NONE:
1723                 if (metric_only)
1724                         print_no_aggr_metric(config, evlist, &os);
1725                 else {
1726                         evlist__for_each_entry(evlist, counter) {
1727                                 if (counter->percore)
1728                                         print_percore(config, counter, &os);
1729                                 else
1730                                         print_counter(config, counter, &os);
1731                         }
1732                 }
1733                 break;
1734         case AGGR_MAX:
1735         case AGGR_UNSET:
1736         default:
1737                 break;
1738         }
1739
1740         print_footer(config);
1741
1742         fflush(config->output);
1743 }