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 "color.h"
   8 #include "counts.h"
   9 #include "evlist.h"
  10 #include "evsel.h"
  11 #include "stat.h"
  12 #include "top.h"
  13 #include "thread_map.h"
  14 #include "cpumap.h"
  15 #include "string2.h"
  16 #include <linux/ctype.h>
  17 #include "cgroup.h"
  18 #include <api/fs/fs.h>
  19 #include "util.h"
  20
  21 #define CNTR_NOT_SUPPORTED      "<not supported>"
  22 #define CNTR_NOT_COUNTED        "<not counted>"
  23
  24 static void print_running(struct perf_stat_config *config,
  25                           u64 run, u64 ena)
  26 {
  27         if (config->csv_output) {
  28                 fprintf(config->output, "%s%" PRIu64 "%s%.2f",
  29                                         config->csv_sep,
  30                                         run,
  31                                         config->csv_sep,
  32                                         ena ? 100.0 * run / ena : 100.0);
  33         } else if (run != ena) {
  34                 fprintf(config->output, "  (%.2f%%)", 100.0 * run / ena);
  35         }
  36 }
  37
  38 static void print_noise_pct(struct perf_stat_config *config,
  39                             double total, double avg)
  40 {
  41         double pct = rel_stddev_stats(total, avg);
  42
  43         if (config->csv_output)
  44                 fprintf(config->output, "%s%.2f%%", config->csv_sep, pct);
  45         else if (pct)
  46                 fprintf(config->output, "  ( +-%6.2f%% )", pct);
  47 }
  48
  49 static void print_noise(struct perf_stat_config *config,
  50                         struct evsel *evsel, double avg)
  51 {
  52         struct perf_stat_evsel *ps;
  53
  54         if (config->run_count == 1)
  55                 return;
  56
  57         ps = evsel->stats;
  58         print_noise_pct(config, stddev_stats(&ps->res_stats[0]), avg);
  59 }
  60
  61 static void print_cgroup(struct perf_stat_config *config, struct evsel *evsel)
  62 {
  63         if (nr_cgroups) {
  64                 const char *cgrp_name = evsel->cgrp ? evsel->cgrp->name  : "";
  65                 fprintf(config->output, "%s%s", config->csv_sep, cgrp_name);
  66         }
  67 }
  68
  69
  70 static void aggr_printout(struct perf_stat_config *config,
  71                           struct evsel *evsel, int id, int nr)
  72 {
  73         switch (config->aggr_mode) {
  74         case AGGR_CORE:
  75                 fprintf(config->output, "S%d-D%d-C%*d%s%*d%s",
  76                         cpu_map__id_to_socket(id),
  77                         cpu_map__id_to_die(id),
  78                         config->csv_output ? 0 : -8,
  79                         cpu_map__id_to_cpu(id),
  80                         config->csv_sep,
  81                         config->csv_output ? 0 : 4,
  82                         nr,
  83                         config->csv_sep);
  84                 break;
  85         case AGGR_DIE:
  86                 fprintf(config->output, "S%d-D%*d%s%*d%s",
  87                         cpu_map__id_to_socket(id << 16),
  88                         config->csv_output ? 0 : -8,
  89                         cpu_map__id_to_die(id << 16),
  90                         config->csv_sep,
  91                         config->csv_output ? 0 : 4,
  92                         nr,
  93                         config->csv_sep);
  94                 break;
  95         case AGGR_SOCKET:
  96                 fprintf(config->output, "S%*d%s%*d%s",
  97                         config->csv_output ? 0 : -5,
  98                         id,
  99                         config->csv_sep,
 100                         config->csv_output ? 0 : 4,
 101                         nr,
 102                         config->csv_sep);
 103                         break;
 104         case AGGR_NODE:
 105                 fprintf(config->output, "N%*d%s%*d%s",
 106                         config->csv_output ? 0 : -5,
 107                         id,
 108                         config->csv_sep,
 109                         config->csv_output ? 0 : 4,
 110                         nr,
 111                         config->csv_sep);
 112                         break;
 113         case AGGR_NONE:
 114                 if (evsel->percore && !config->percore_show_thread) {
 115                         fprintf(config->output, "S%d-D%d-C%*d%s",
 116                                 cpu_map__id_to_socket(id),
 117                                 cpu_map__id_to_die(id),
 118                                 config->csv_output ? 0 : -3,
 119                                 cpu_map__id_to_cpu(id), config->csv_sep);
 120                 } else {
 121                         fprintf(config->output, "CPU%*d%s",
 122                                 config->csv_output ? 0 : -7,
 123                                 evsel__cpus(evsel)->map[id],
 124                                 config->csv_sep);
 125                 }
 126                 break;
 127         case AGGR_THREAD:
 128                 fprintf(config->output, "%*s-%*d%s",
 129                         config->csv_output ? 0 : 16,
 130                         perf_thread_map__comm(evsel->core.threads, id),
 131                         config->csv_output ? 0 : -8,
 132                         perf_thread_map__pid(evsel->core.threads, id),
 133                         config->csv_sep);
 134                 break;
 135         case AGGR_GLOBAL:
 136         case AGGR_UNSET:
 137         default:
 138                 break;
 139         }
 140 }
 141
 142 struct outstate {
 143         FILE *fh;
 144         bool newline;
 145         const char *prefix;
 146         int  nfields;
 147         int  id, nr;
 148         struct evsel *evsel;
 149 };
 150
 151 #define METRIC_LEN  35
 152
 153 static void new_line_std(struct perf_stat_config *config __maybe_unused,
 154                          void *ctx)
 155 {
 156         struct outstate *os = ctx;
 157
 158         os->newline = true;
 159 }
 160
 161 static void do_new_line_std(struct perf_stat_config *config,
 162                             struct outstate *os)
 163 {
 164         fputc('\n', os->fh);
 165         fputs(os->prefix, os->fh);
 166         aggr_printout(config, os->evsel, os->id, os->nr);
 167         if (config->aggr_mode == AGGR_NONE)
 168                 fprintf(os->fh, "        ");
 169         fprintf(os->fh, "                                                 ");
 170 }
 171
 172 static void print_metric_std(struct perf_stat_config *config,
 173                              void *ctx, const char *color, const char *fmt,
 174                              const char *unit, double val)
 175 {
 176         struct outstate *os = ctx;
 177         FILE *out = os->fh;
 178         int n;
 179         bool newline = os->newline;
 180
 181         os->newline = false;
 182
 183         if (unit == NULL || fmt == NULL) {
 184                 fprintf(out, "%-*s", METRIC_LEN, "");
 185                 return;
 186         }
 187
 188         if (newline)
 189                 do_new_line_std(config, os);
 190
 191         n = fprintf(out, " # ");
 192         if (color)
 193                 n += color_fprintf(out, color, fmt, val);
 194         else
 195                 n += fprintf(out, fmt, val);
 196         fprintf(out, " %-*s", METRIC_LEN - n - 1, unit);
 197 }
 198
 199 static void new_line_csv(struct perf_stat_config *config, void *ctx)
 200 {
 201         struct outstate *os = ctx;
 202         int i;
 203
 204         fputc('\n', os->fh);
 205         if (os->prefix)
 206                 fprintf(os->fh, "%s%s", os->prefix, config->csv_sep);
 207         aggr_printout(config, os->evsel, os->id, os->nr);
 208         for (i = 0; i < os->nfields; i++)
 209                 fputs(config->csv_sep, os->fh);
 210 }
 211
 212 static void print_metric_csv(struct perf_stat_config *config __maybe_unused,
 213                              void *ctx,
 214                              const char *color __maybe_unused,
 215                              const char *fmt, const char *unit, double val)
 216 {
 217         struct outstate *os = ctx;
 218         FILE *out = os->fh;
 219         char buf[64], *vals, *ends;
 220
 221         if (unit == NULL || fmt == NULL) {
 222                 fprintf(out, "%s%s", config->csv_sep, config->csv_sep);
 223                 return;
 224         }
 225         snprintf(buf, sizeof(buf), fmt, val);
 226         ends = vals = skip_spaces(buf);
 227         while (isdigit(*ends) || *ends == '.')
 228                 ends++;
 229         *ends = 0;
 230         fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, skip_spaces(unit));
 231 }
 232
 233 /* Filter out some columns that don't work well in metrics only mode */
 234
 235 static bool valid_only_metric(const char *unit)
 236 {
 237         if (!unit)
 238                 return false;
 239         if (strstr(unit, "/sec") ||
 240             strstr(unit, "CPUs utilized"))
 241                 return false;
 242         return true;
 243 }
 244
 245 static const char *fixunit(char *buf, struct evsel *evsel,
 246                            const char *unit)
 247 {
 248         if (!strncmp(unit, "of all", 6)) {
 249                 snprintf(buf, 1024, "%s %s", evsel__name(evsel),
 250                          unit);
 251                 return buf;
 252         }
 253         return unit;
 254 }
 255
 256 static void print_metric_only(struct perf_stat_config *config,
 257                               void *ctx, const char *color, const char *fmt,
 258                               const char *unit, double val)
 259 {
 260         struct outstate *os = ctx;
 261         FILE *out = os->fh;
 262         char buf[1024], str[1024];
 263         unsigned mlen = config->metric_only_len;
 264
 265         if (!valid_only_metric(unit))
 266                 return;
 267         unit = fixunit(buf, os->evsel, unit);
 268         if (mlen < strlen(unit))
 269                 mlen = strlen(unit) + 1;
 270
 271         if (color)
 272                 mlen += strlen(color) + sizeof(PERF_COLOR_RESET) - 1;
 273
 274         color_snprintf(str, sizeof(str), color ?: "", fmt, val);
 275         fprintf(out, "%*s ", mlen, str);
 276 }
 277
 278 static void print_metric_only_csv(struct perf_stat_config *config __maybe_unused,
 279                                   void *ctx, const char *color __maybe_unused,
 280                                   const char *fmt,
 281                                   const char *unit, double val)
 282 {
 283         struct outstate *os = ctx;
 284         FILE *out = os->fh;
 285         char buf[64], *vals, *ends;
 286         char tbuf[1024];
 287
 288         if (!valid_only_metric(unit))
 289                 return;
 290         unit = fixunit(tbuf, os->evsel, unit);
 291         snprintf(buf, sizeof buf, fmt, val);
 292         ends = vals = skip_spaces(buf);
 293         while (isdigit(*ends) || *ends == '.')
 294                 ends++;
 295         *ends = 0;
 296         fprintf(out, "%s%s", vals, config->csv_sep);
 297 }
 298
 299 static void new_line_metric(struct perf_stat_config *config __maybe_unused,
 300                             void *ctx __maybe_unused)
 301 {
 302 }
 303
 304 static void print_metric_header(struct perf_stat_config *config,
 305                                 void *ctx, const char *color __maybe_unused,
 306                                 const char *fmt __maybe_unused,
 307                                 const char *unit, double val __maybe_unused)
 308 {
 309         struct outstate *os = ctx;
 310         char tbuf[1024];
 311
 312         if (!valid_only_metric(unit))
 313                 return;
 314         unit = fixunit(tbuf, os->evsel, unit);
 315         if (config->csv_output)
 316                 fprintf(os->fh, "%s%s", unit, config->csv_sep);
 317         else
 318                 fprintf(os->fh, "%*s ", config->metric_only_len, unit);
 319 }
 320
 321 static int first_shadow_cpu(struct perf_stat_config *config,
 322                             struct evsel *evsel, int id)
 323 {
 324         struct evlist *evlist = evsel->evlist;
 325         int i;
 326
 327         if (!config->aggr_get_id)
 328                 return 0;
 329
 330         if (config->aggr_mode == AGGR_NONE)
 331                 return id;
 332
 333         if (config->aggr_mode == AGGR_GLOBAL)
 334                 return 0;
 335
 336         for (i = 0; i < evsel__nr_cpus(evsel); i++) {
 337                 int cpu2 = evsel__cpus(evsel)->map[i];
 338
 339                 if (config->aggr_get_id(config, evlist->core.cpus, cpu2) == id)
 340                         return cpu2;
 341         }
 342         return 0;
 343 }
 344
 345 static void abs_printout(struct perf_stat_config *config,
 346                          int id, int nr, struct evsel *evsel, double avg)
 347 {
 348         FILE *output = config->output;
 349         double sc =  evsel->scale;
 350         const char *fmt;
 351
 352         if (config->csv_output) {
 353                 fmt = floor(sc) != sc ?  "%.2f%s" : "%.0f%s";
 354         } else {
 355                 if (config->big_num)
 356                         fmt = floor(sc) != sc ? "%'18.2f%s" : "%'18.0f%s";
 357                 else
 358                         fmt = floor(sc) != sc ? "%18.2f%s" : "%18.0f%s";
 359         }
 360
 361         aggr_printout(config, evsel, id, nr);
 362
 363         fprintf(output, fmt, avg, config->csv_sep);
 364
 365         if (evsel->unit)
 366                 fprintf(output, "%-*s%s",
 367                         config->csv_output ? 0 : config->unit_width,
 368                         evsel->unit, config->csv_sep);
 369
 370         fprintf(output, "%-*s", config->csv_output ? 0 : 25, evsel__name(evsel));
 371
 372         print_cgroup(config, evsel);
 373 }
 374
 375 static bool is_mixed_hw_group(struct evsel *counter)
 376 {
 377         struct evlist *evlist = counter->evlist;
 378         u32 pmu_type = counter->core.attr.type;
 379         struct evsel *pos;
 380
 381         if (counter->core.nr_members < 2)
 382                 return false;
 383
 384         evlist__for_each_entry(evlist, pos) {
 385                 /* software events can be part of any hardware group */
 386                 if (pos->core.attr.type == PERF_TYPE_SOFTWARE)
 387                         continue;
 388                 if (pmu_type == PERF_TYPE_SOFTWARE) {
 389                         pmu_type = pos->core.attr.type;
 390                         continue;
 391                 }
 392                 if (pmu_type != pos->core.attr.type)
 393                         return true;
 394         }
 395
 396         return false;
 397 }
 398
 399 static void printout(struct perf_stat_config *config, int id, int nr,
 400                      struct evsel *counter, double uval,
 401                      char *prefix, u64 run, u64 ena, double noise,
 402                      struct runtime_stat *st)
 403 {
 404         struct perf_stat_output_ctx out;
 405         struct outstate os = {
 406                 .fh = config->output,
 407                 .prefix = prefix ? prefix : "",
 408                 .id = id,
 409                 .nr = nr,
 410                 .evsel = counter,
 411         };
 412         print_metric_t pm = print_metric_std;
 413         new_line_t nl;
 414
 415         if (config->metric_only) {
 416                 nl = new_line_metric;
 417                 if (config->csv_output)
 418                         pm = print_metric_only_csv;
 419                 else
 420                         pm = print_metric_only;
 421         } else
 422                 nl = new_line_std;
 423
 424         if (config->csv_output && !config->metric_only) {
 425                 static int aggr_fields[] = {
 426                         [AGGR_GLOBAL] = 0,
 427                         [AGGR_THREAD] = 1,
 428                         [AGGR_NONE] = 1,
 429                         [AGGR_SOCKET] = 2,
 430                         [AGGR_DIE] = 2,
 431                         [AGGR_CORE] = 2,
 432                 };
 433
 434                 pm = print_metric_csv;
 435                 nl = new_line_csv;
 436                 os.nfields = 3;
 437                 os.nfields += aggr_fields[config->aggr_mode];
 438                 if (counter->cgrp)
 439                         os.nfields++;
 440         }
 441         if (run == 0 || ena == 0 || counter->counts->scaled == -1) {
 442                 if (config->metric_only) {
 443                         pm(config, &os, NULL, "", "", 0);
 444                         return;
 445                 }
 446                 aggr_printout(config, counter, id, nr);
 447
 448                 fprintf(config->output, "%*s%s",
 449                         config->csv_output ? 0 : 18,
 450                         counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
 451                         config->csv_sep);
 452
 453                 if (counter->supported) {
 454                         config->print_free_counters_hint = 1;
 455                         if (is_mixed_hw_group(counter))
 456                                 config->print_mixed_hw_group_error = 1;
 457                 }
 458
 459                 fprintf(config->output, "%-*s%s",
 460                         config->csv_output ? 0 : config->unit_width,
 461                         counter->unit, config->csv_sep);
 462
 463                 fprintf(config->output, "%*s",
 464                         config->csv_output ? 0 : -25, evsel__name(counter));
 465
 466                 print_cgroup(config, counter);
 467
 468                 if (!config->csv_output)
 469                         pm(config, &os, NULL, NULL, "", 0);
 470                 print_noise(config, counter, noise);
 471                 print_running(config, run, ena);
 472                 if (config->csv_output)
 473                         pm(config, &os, NULL, NULL, "", 0);
 474                 return;
 475         }
 476
 477         if (!config->metric_only)
 478                 abs_printout(config, id, nr, counter, uval);
 479
 480         out.print_metric = pm;
 481         out.new_line = nl;
 482         out.ctx = &os;
 483         out.force_header = false;
 484
 485         if (config->csv_output && !config->metric_only) {
 486                 print_noise(config, counter, noise);
 487                 print_running(config, run, ena);
 488         }
 489
 490         perf_stat__print_shadow_stats(config, counter, uval,
 491                                 first_shadow_cpu(config, counter, id),
 492                                 &out, &config->metric_events, st);
 493         if (!config->csv_output && !config->metric_only) {
 494                 print_noise(config, counter, noise);
 495                 print_running(config, run, ena);
 496         }
 497 }
 498
 499 static void aggr_update_shadow(struct perf_stat_config *config,
 500                                struct evlist *evlist)
 501 {
 502         int cpu, s2, id, s;
 503         u64 val;
 504         struct evsel *counter;
 505
 506         for (s = 0; s < config->aggr_map->nr; s++) {
 507                 id = config->aggr_map->map[s];
 508                 evlist__for_each_entry(evlist, counter) {
 509                         val = 0;
 510                         for (cpu = 0; cpu < evsel__nr_cpus(counter); cpu++) {
 511                                 s2 = config->aggr_get_id(config, evlist->core.cpus, cpu);
 512                                 if (s2 != id)
 513                                         continue;
 514                                 val += perf_counts(counter->counts, cpu, 0)->val;
 515                         }
 516                         perf_stat__update_shadow_stats(counter, val,
 517                                         first_shadow_cpu(config, counter, id),
 518                                         &rt_stat);
 519                 }
 520         }
 521 }
 522
 523 static void uniquify_event_name(struct evsel *counter)
 524 {
 525         char *new_name;
 526         char *config;
 527
 528         if (counter->uniquified_name ||
 529             !counter->pmu_name || !strncmp(counter->name, counter->pmu_name,
 530                                            strlen(counter->pmu_name)))
 531                 return;
 532
 533         config = strchr(counter->name, '/');
 534         if (config) {
 535                 if (asprintf(&new_name,
 536                              "%s%s", counter->pmu_name, config) > 0) {
 537                         free(counter->name);
 538                         counter->name = new_name;
 539                 }
 540         } else {
 541                 if (asprintf(&new_name,
 542                              "%s [%s]", counter->name, counter->pmu_name) > 0) {
 543                         free(counter->name);
 544                         counter->name = new_name;
 545                 }
 546         }
 547
 548         counter->uniquified_name = true;
 549 }
 550
 551 static void collect_all_aliases(struct perf_stat_config *config, struct evsel *counter,
 552                             void (*cb)(struct perf_stat_config *config, struct evsel *counter, void *data,
 553                                        bool first),
 554                             void *data)
 555 {
 556         struct evlist *evlist = counter->evlist;
 557         struct evsel *alias;
 558
 559         alias = list_prepare_entry(counter, &(evlist->core.entries), core.node);
 560         list_for_each_entry_continue (alias, &evlist->core.entries, core.node) {
 561                 if (strcmp(evsel__name(alias), evsel__name(counter)) ||
 562                     alias->scale != counter->scale ||
 563                     alias->cgrp != counter->cgrp ||
 564                     strcmp(alias->unit, counter->unit) ||
 565                     evsel__is_clock(alias) != evsel__is_clock(counter) ||
 566                     !strcmp(alias->pmu_name, counter->pmu_name))
 567                         break;
 568                 alias->merged_stat = true;
 569                 cb(config, alias, data, false);
 570         }
 571 }
 572
 573 static bool collect_data(struct perf_stat_config *config, struct evsel *counter,
 574                             void (*cb)(struct perf_stat_config *config, struct evsel *counter, void *data,
 575                                        bool first),
 576                             void *data)
 577 {
 578         if (counter->merged_stat)
 579                 return false;
 580         cb(config, counter, data, true);
 581         if (config->no_merge)
 582                 uniquify_event_name(counter);
 583         else if (counter->auto_merge_stats)
 584                 collect_all_aliases(config, counter, cb, data);
 585         return true;
 586 }
 587
 588 struct aggr_data {
 589         u64 ena, run, val;
 590         int id;
 591         int nr;
 592         int cpu;
 593 };
 594
 595 static void aggr_cb(struct perf_stat_config *config,
 596                     struct evsel *counter, void *data, bool first)
 597 {
 598         struct aggr_data *ad = data;
 599         int cpu, s2;
 600
 601         for (cpu = 0; cpu < evsel__nr_cpus(counter); cpu++) {
 602                 struct perf_counts_values *counts;
 603
 604                 s2 = config->aggr_get_id(config, evsel__cpus(counter), cpu);
 605                 if (s2 != ad->id)
 606                         continue;
 607                 if (first)
 608                         ad->nr++;
 609                 counts = perf_counts(counter->counts, cpu, 0);
 610                 /*
 611                  * When any result is bad, make them all to give
 612                  * consistent output in interval mode.
 613                  */
 614                 if (counts->ena == 0 || counts->run == 0 ||
 615                     counter->counts->scaled == -1) {
 616                         ad->ena = 0;
 617                         ad->run = 0;
 618                         break;
 619                 }
 620                 ad->val += counts->val;
 621                 ad->ena += counts->ena;
 622                 ad->run += counts->run;
 623         }
 624 }
 625
 626 static void print_counter_aggrdata(struct perf_stat_config *config,
 627                                    struct evsel *counter, int s,
 628                                    char *prefix, bool metric_only,
 629                                    bool *first, int cpu)
 630 {
 631         struct aggr_data ad;
 632         FILE *output = config->output;
 633         u64 ena, run, val;
 634         int id, nr;
 635         double uval;
 636
 637         ad.id = id = config->aggr_map->map[s];
 638         ad.val = ad.ena = ad.run = 0;
 639         ad.nr = 0;
 640         if (!collect_data(config, counter, aggr_cb, &ad))
 641                 return;
 642
 643         nr = ad.nr;
 644         ena = ad.ena;
 645         run = ad.run;
 646         val = ad.val;
 647         if (*first && metric_only) {
 648                 *first = false;
 649                 aggr_printout(config, counter, id, nr);
 650         }
 651         if (prefix && !metric_only)
 652                 fprintf(output, "%s", prefix);
 653
 654         uval = val * counter->scale;
 655         printout(config, cpu != -1 ? cpu : id, nr, counter, uval, prefix,
 656                  run, ena, 1.0, &rt_stat);
 657         if (!metric_only)
 658                 fputc('\n', output);
 659 }
 660
 661 static void print_aggr(struct perf_stat_config *config,
 662                        struct evlist *evlist,
 663                        char *prefix)
 664 {
 665         bool metric_only = config->metric_only;
 666         FILE *output = config->output;
 667         struct evsel *counter;
 668         int s;
 669         bool first;
 670
 671         if (!config->aggr_map || !config->aggr_get_id)
 672                 return;
 673
 674         aggr_update_shadow(config, evlist);
 675
 676         /*
 677          * With metric_only everything is on a single line.
 678          * Without each counter has its own line.
 679          */
 680         for (s = 0; s < config->aggr_map->nr; s++) {
 681                 if (prefix && metric_only)
 682                         fprintf(output, "%s", prefix);
 683
 684                 first = true;
 685                 evlist__for_each_entry(evlist, counter) {
 686                         print_counter_aggrdata(config, counter, s,
 687                                                prefix, metric_only,
 688                                                &first, -1);
 689                 }
 690                 if (metric_only)
 691                         fputc('\n', output);
 692         }
 693 }
 694
 695 static int cmp_val(const void *a, const void *b)
 696 {
 697         return ((struct perf_aggr_thread_value *)b)->val -
 698                 ((struct perf_aggr_thread_value *)a)->val;
 699 }
 700
 701 static struct perf_aggr_thread_value *sort_aggr_thread(
 702                                         struct evsel *counter,
 703                                         int nthreads, int ncpus,
 704                                         int *ret,
 705                                         struct target *_target)
 706 {
 707         int cpu, thread, i = 0;
 708         double uval;
 709         struct perf_aggr_thread_value *buf;
 710
 711         buf = calloc(nthreads, sizeof(struct perf_aggr_thread_value));
 712         if (!buf)
 713                 return NULL;
 714
 715         for (thread = 0; thread < nthreads; thread++) {
 716                 u64 ena = 0, run = 0, val = 0;
 717
 718                 for (cpu = 0; cpu < ncpus; cpu++) {
 719                         val += perf_counts(counter->counts, cpu, thread)->val;
 720                         ena += perf_counts(counter->counts, cpu, thread)->ena;
 721                         run += perf_counts(counter->counts, cpu, thread)->run;
 722                 }
 723
 724                 uval = val * counter->scale;
 725
 726                 /*
 727                  * Skip value 0 when enabling --per-thread globally,
 728                  * otherwise too many 0 output.
 729                  */
 730                 if (uval == 0.0 && target__has_per_thread(_target))
 731                         continue;
 732
 733                 buf[i].counter = counter;
 734                 buf[i].id = thread;
 735                 buf[i].uval = uval;
 736                 buf[i].val = val;
 737                 buf[i].run = run;
 738                 buf[i].ena = ena;
 739                 i++;
 740         }
 741
 742         qsort(buf, i, sizeof(struct perf_aggr_thread_value), cmp_val);
 743
 744         if (ret)
 745                 *ret = i;
 746
 747         return buf;
 748 }
 749
 750 static void print_aggr_thread(struct perf_stat_config *config,
 751                               struct target *_target,
 752                               struct evsel *counter, char *prefix)
 753 {
 754         FILE *output = config->output;
 755         int nthreads = perf_thread_map__nr(counter->core.threads);
 756         int ncpus = perf_cpu_map__nr(counter->core.cpus);
 757         int thread, sorted_threads, id;
 758         struct perf_aggr_thread_value *buf;
 759
 760         buf = sort_aggr_thread(counter, nthreads, ncpus, &sorted_threads, _target);
 761         if (!buf) {
 762                 perror("cannot sort aggr thread");
 763                 return;
 764         }
 765
 766         for (thread = 0; thread < sorted_threads; thread++) {
 767                 if (prefix)
 768                         fprintf(output, "%s", prefix);
 769
 770                 id = buf[thread].id;
 771                 if (config->stats)
 772                         printout(config, id, 0, buf[thread].counter, buf[thread].uval,
 773                                  prefix, buf[thread].run, buf[thread].ena, 1.0,
 774                                  &config->stats[id]);
 775                 else
 776                         printout(config, id, 0, buf[thread].counter, buf[thread].uval,
 777                                  prefix, buf[thread].run, buf[thread].ena, 1.0,
 778                                  &rt_stat);
 779                 fputc('\n', output);
 780         }
 781
 782         free(buf);
 783 }
 784
 785 struct caggr_data {
 786         double avg, avg_enabled, avg_running;
 787 };
 788
 789 static void counter_aggr_cb(struct perf_stat_config *config __maybe_unused,
 790                             struct evsel *counter, void *data,
 791                             bool first __maybe_unused)
 792 {
 793         struct caggr_data *cd = data;
 794         struct perf_stat_evsel *ps = counter->stats;
 795
 796         cd->avg += avg_stats(&ps->res_stats[0]);
 797         cd->avg_enabled += avg_stats(&ps->res_stats[1]);
 798         cd->avg_running += avg_stats(&ps->res_stats[2]);
 799 }
 800
 801 /*
 802  * Print out the results of a single counter:
 803  * aggregated counts in system-wide mode
 804  */
 805 static void print_counter_aggr(struct perf_stat_config *config,
 806                                struct evsel *counter, char *prefix)
 807 {
 808         bool metric_only = config->metric_only;
 809         FILE *output = config->output;
 810         double uval;
 811         struct caggr_data cd = { .avg = 0.0 };
 812
 813         if (!collect_data(config, counter, counter_aggr_cb, &cd))
 814                 return;
 815
 816         if (prefix && !metric_only)
 817                 fprintf(output, "%s", prefix);
 818
 819         uval = cd.avg * counter->scale;
 820         printout(config, -1, 0, counter, uval, prefix, cd.avg_running, cd.avg_enabled,
 821                  cd.avg, &rt_stat);
 822         if (!metric_only)
 823                 fprintf(output, "\n");
 824 }
 825
 826 static void counter_cb(struct perf_stat_config *config __maybe_unused,
 827                        struct evsel *counter, void *data,
 828                        bool first __maybe_unused)
 829 {
 830         struct aggr_data *ad = data;
 831
 832         ad->val += perf_counts(counter->counts, ad->cpu, 0)->val;
 833         ad->ena += perf_counts(counter->counts, ad->cpu, 0)->ena;
 834         ad->run += perf_counts(counter->counts, ad->cpu, 0)->run;
 835 }
 836
 837 /*
 838  * Print out the results of a single counter:
 839  * does not use aggregated count in system-wide
 840  */
 841 static void print_counter(struct perf_stat_config *config,
 842                           struct evsel *counter, char *prefix)
 843 {
 844         FILE *output = config->output;
 845         u64 ena, run, val;
 846         double uval;
 847         int cpu;
 848
 849         for (cpu = 0; cpu < evsel__nr_cpus(counter); cpu++) {
 850                 struct aggr_data ad = { .cpu = cpu };
 851
 852                 if (!collect_data(config, counter, counter_cb, &ad))
 853                         return;
 854                 val = ad.val;
 855                 ena = ad.ena;
 856                 run = ad.run;
 857
 858                 if (prefix)
 859                         fprintf(output, "%s", prefix);
 860
 861                 uval = val * counter->scale;
 862                 printout(config, cpu, 0, counter, uval, prefix, run, ena, 1.0,
 863                          &rt_stat);
 864
 865                 fputc('\n', output);
 866         }
 867 }
 868
 869 static void print_no_aggr_metric(struct perf_stat_config *config,
 870                                  struct evlist *evlist,
 871                                  char *prefix)
 872 {
 873         int cpu;
 874         int nrcpus = 0;
 875         struct evsel *counter;
 876         u64 ena, run, val;
 877         double uval;
 878
 879         nrcpus = evlist->core.cpus->nr;
 880         for (cpu = 0; cpu < nrcpus; cpu++) {
 881                 bool first = true;
 882
 883                 if (prefix)
 884                         fputs(prefix, config->output);
 885                 evlist__for_each_entry(evlist, counter) {
 886                         if (first) {
 887                                 aggr_printout(config, counter, cpu, 0);
 888                                 first = false;
 889                         }
 890                         val = perf_counts(counter->counts, cpu, 0)->val;
 891                         ena = perf_counts(counter->counts, cpu, 0)->ena;
 892                         run = perf_counts(counter->counts, cpu, 0)->run;
 893
 894                         uval = val * counter->scale;
 895                         printout(config, cpu, 0, counter, uval, prefix, run, ena, 1.0,
 896                                  &rt_stat);
 897                 }
 898                 fputc('\n', config->output);
 899         }
 900 }
 901
 902 static int aggr_header_lens[] = {
 903         [AGGR_CORE] = 24,
 904         [AGGR_DIE] = 18,
 905         [AGGR_SOCKET] = 12,
 906         [AGGR_NONE] = 6,
 907         [AGGR_THREAD] = 24,
 908         [AGGR_GLOBAL] = 0,
 909 };
 910
 911 static const char *aggr_header_csv[] = {
 912         [AGGR_CORE]     =       "core,cpus,",
 913         [AGGR_DIE]      =       "die,cpus",
 914         [AGGR_SOCKET]   =       "socket,cpus",
 915         [AGGR_NONE]     =       "cpu,",
 916         [AGGR_THREAD]   =       "comm-pid,",
 917         [AGGR_GLOBAL]   =       ""
 918 };
 919
 920 static void print_metric_headers(struct perf_stat_config *config,
 921                                  struct evlist *evlist,
 922                                  const char *prefix, bool no_indent)
 923 {
 924         struct perf_stat_output_ctx out;
 925         struct evsel *counter;
 926         struct outstate os = {
 927                 .fh = config->output
 928         };
 929
 930         if (prefix)
 931                 fprintf(config->output, "%s", prefix);
 932
 933         if (!config->csv_output && !no_indent)
 934                 fprintf(config->output, "%*s",
 935                         aggr_header_lens[config->aggr_mode], "");
 936         if (config->csv_output) {
 937                 if (config->interval)
 938                         fputs("time,", config->output);
 939                 fputs(aggr_header_csv[config->aggr_mode], config->output);
 940         }
 941
 942         /* Print metrics headers only */
 943         evlist__for_each_entry(evlist, counter) {
 944                 os.evsel = counter;
 945                 out.ctx = &os;
 946                 out.print_metric = print_metric_header;
 947                 out.new_line = new_line_metric;
 948                 out.force_header = true;
 949                 os.evsel = counter;
 950                 perf_stat__print_shadow_stats(config, counter, 0,
 951                                               0,
 952                                               &out,
 953                                               &config->metric_events,
 954                                               &rt_stat);
 955         }
 956         fputc('\n', config->output);
 957 }
 958
 959 static void print_interval(struct perf_stat_config *config,
 960                            struct evlist *evlist,
 961                            char *prefix, struct timespec *ts)
 962 {
 963         bool metric_only = config->metric_only;
 964         unsigned int unit_width = config->unit_width;
 965         FILE *output = config->output;
 966         static int num_print_interval;
 967
 968         if (config->interval_clear)
 969                 puts(CONSOLE_CLEAR);
 970
 971         sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, config->csv_sep);
 972
 973         if ((num_print_interval == 0 && !config->csv_output) || config->interval_clear) {
 974                 switch (config->aggr_mode) {
 975                 case AGGR_NODE:
 976                         fprintf(output, "#           time node   cpus");
 977                         if (!metric_only)
 978                                 fprintf(output, "             counts %*s events\n", unit_width, "unit");
 979                         break;
 980                 case AGGR_SOCKET:
 981                         fprintf(output, "#           time socket cpus");
 982                         if (!metric_only)
 983                                 fprintf(output, "             counts %*s events\n", unit_width, "unit");
 984                         break;
 985                 case AGGR_DIE:
 986                         fprintf(output, "#           time die          cpus");
 987                         if (!metric_only)
 988                                 fprintf(output, "             counts %*s events\n", unit_width, "unit");
 989                         break;
 990                 case AGGR_CORE:
 991                         fprintf(output, "#           time core            cpus");
 992                         if (!metric_only)
 993                                 fprintf(output, "             counts %*s events\n", unit_width, "unit");
 994                         break;
 995                 case AGGR_NONE:
 996                         fprintf(output, "#           time CPU    ");
 997                         if (!metric_only)
 998                                 fprintf(output, "                counts %*s events\n", unit_width, "unit");
 999                         break;
1000                 case AGGR_THREAD:
1001                         fprintf(output, "#           time             comm-pid");
1002                         if (!metric_only)
1003                                 fprintf(output, "                  counts %*s events\n", unit_width, "unit");
1004                         break;
1005                 case AGGR_GLOBAL:
1006                 default:
1007                         fprintf(output, "#           time");
1008                         if (!metric_only)
1009                                 fprintf(output, "             counts %*s events\n", unit_width, "unit");
1010                 case AGGR_UNSET:
1011                         break;
1012                 }
1013         }
1014
1015         if ((num_print_interval == 0 || config->interval_clear) && metric_only)
1016                 print_metric_headers(config, evlist, " ", true);
1017         if (++num_print_interval == 25)
1018                 num_print_interval = 0;
1019 }
1020
1021 static void print_header(struct perf_stat_config *config,
1022                          struct target *_target,
1023                          int argc, const char **argv)
1024 {
1025         FILE *output = config->output;
1026         int i;
1027
1028         fflush(stdout);
1029
1030         if (!config->csv_output) {
1031                 fprintf(output, "\n");
1032                 fprintf(output, " Performance counter stats for ");
1033                 if (_target->system_wide)
1034                         fprintf(output, "\'system wide");
1035                 else if (_target->cpu_list)
1036                         fprintf(output, "\'CPU(s) %s", _target->cpu_list);
1037                 else if (!target__has_task(_target)) {
1038                         fprintf(output, "\'%s", argv ? argv[0] : "pipe");
1039                         for (i = 1; argv && (i < argc); i++)
1040                                 fprintf(output, " %s", argv[i]);
1041                 } else if (_target->pid)
1042                         fprintf(output, "process id \'%s", _target->pid);
1043                 else
1044                         fprintf(output, "thread id \'%s", _target->tid);
1045
1046                 fprintf(output, "\'");
1047                 if (config->run_count > 1)
1048                         fprintf(output, " (%d runs)", config->run_count);
1049                 fprintf(output, ":\n\n");
1050         }
1051 }
1052
1053 static int get_precision(double num)
1054 {
1055         if (num > 1)
1056                 return 0;
1057
1058         return lround(ceil(-log10(num)));
1059 }
1060
1061 static void print_table(struct perf_stat_config *config,
1062                         FILE *output, int precision, double avg)
1063 {
1064         char tmp[64];
1065         int idx, indent = 0;
1066
1067         scnprintf(tmp, 64, " %17.*f", precision, avg);
1068         while (tmp[indent] == ' ')
1069                 indent++;
1070
1071         fprintf(output, "%*s# Table of individual measurements:\n", indent, "");
1072
1073         for (idx = 0; idx < config->run_count; idx++) {
1074                 double run = (double) config->walltime_run[idx] / NSEC_PER_SEC;
1075                 int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5);
1076
1077                 fprintf(output, " %17.*f (%+.*f) ",
1078                         precision, run, precision, run - avg);
1079
1080                 for (h = 0; h < n; h++)
1081                         fprintf(output, "#");
1082
1083                 fprintf(output, "\n");
1084         }
1085
1086         fprintf(output, "\n%*s# Final result:\n", indent, "");
1087 }
1088
1089 static double timeval2double(struct timeval *t)
1090 {
1091         return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC;
1092 }
1093
1094 static void print_footer(struct perf_stat_config *config)
1095 {
1096         double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1097         FILE *output = config->output;
1098
1099         if (!config->null_run)
1100                 fprintf(output, "\n");
1101
1102         if (config->run_count == 1) {
1103                 fprintf(output, " %17.9f seconds time elapsed", avg);
1104
1105                 if (config->ru_display) {
1106                         double ru_utime = timeval2double(&config->ru_data.ru_utime);
1107                         double ru_stime = timeval2double(&config->ru_data.ru_stime);
1108
1109                         fprintf(output, "\n\n");
1110                         fprintf(output, " %17.9f seconds user\n", ru_utime);
1111                         fprintf(output, " %17.9f seconds sys\n", ru_stime);
1112                 }
1113         } else {
1114                 double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
1115                 /*
1116                  * Display at most 2 more significant
1117                  * digits than the stddev inaccuracy.
1118                  */
1119                 int precision = get_precision(sd) + 2;
1120
1121                 if (config->walltime_run_table)
1122                         print_table(config, output, precision, avg);
1123
1124                 fprintf(output, " %17.*f +- %.*f seconds time elapsed",
1125                         precision, avg, precision, sd);
1126
1127                 print_noise_pct(config, sd, avg);
1128         }
1129         fprintf(output, "\n\n");
1130
1131         if (config->print_free_counters_hint && sysctl__nmi_watchdog_enabled())
1132                 fprintf(output,
1133 "Some events weren't counted. Try disabling the NMI watchdog:\n"
1134 "       echo 0 > /proc/sys/kernel/nmi_watchdog\n"
1135 "       perf stat ...\n"
1136 "       echo 1 > /proc/sys/kernel/nmi_watchdog\n");
1137
1138         if (config->print_mixed_hw_group_error)
1139                 fprintf(output,
1140                         "The events in group usually have to be from "
1141                         "the same PMU. Try reorganizing the group.\n");
1142 }
1143
1144 static void print_percore_thread(struct perf_stat_config *config,
1145                                  struct evsel *counter, char *prefix)
1146 {
1147         int s, s2, id;
1148         bool first = true;
1149
1150         for (int i = 0; i < evsel__nr_cpus(counter); i++) {
1151                 s2 = config->aggr_get_id(config, evsel__cpus(counter), i);
1152                 for (s = 0; s < config->aggr_map->nr; s++) {
1153                         id = config->aggr_map->map[s];
1154                         if (s2 == id)
1155                                 break;
1156                 }
1157
1158                 print_counter_aggrdata(config, counter, s,
1159                                        prefix, false,
1160                                        &first, i);
1161         }
1162 }
1163
1164 static void print_percore(struct perf_stat_config *config,
1165                           struct evsel *counter, char *prefix)
1166 {
1167         bool metric_only = config->metric_only;
1168         FILE *output = config->output;
1169         int s;
1170         bool first = true;
1171
1172         if (!config->aggr_map || !config->aggr_get_id)
1173                 return;
1174
1175         if (config->percore_show_thread)
1176                 return print_percore_thread(config, counter, prefix);
1177
1178         for (s = 0; s < config->aggr_map->nr; s++) {
1179                 if (prefix && metric_only)
1180                         fprintf(output, "%s", prefix);
1181
1182                 print_counter_aggrdata(config, counter, s,
1183                                        prefix, metric_only,
1184                                        &first, -1);
1185         }
1186
1187         if (metric_only)
1188                 fputc('\n', output);
1189 }
1190
1191 void
1192 perf_evlist__print_counters(struct evlist *evlist,
1193                             struct perf_stat_config *config,
1194                             struct target *_target,
1195                             struct timespec *ts,
1196                             int argc, const char **argv)
1197 {
1198         bool metric_only = config->metric_only;
1199         int interval = config->interval;
1200         struct evsel *counter;
1201         char buf[64], *prefix = NULL;
1202
1203         if (interval)
1204                 print_interval(config, evlist, prefix = buf, ts);
1205         else
1206                 print_header(config, _target, argc, argv);
1207
1208         if (metric_only) {
1209                 static int num_print_iv;
1210
1211                 if (num_print_iv == 0 && !interval)
1212                         print_metric_headers(config, evlist, prefix, false);
1213                 if (num_print_iv++ == 25)
1214                         num_print_iv = 0;
1215                 if (config->aggr_mode == AGGR_GLOBAL && prefix)
1216                         fprintf(config->output, "%s", prefix);
1217         }
1218
1219         switch (config->aggr_mode) {
1220         case AGGR_CORE:
1221         case AGGR_DIE:
1222         case AGGR_SOCKET:
1223         case AGGR_NODE:
1224                 print_aggr(config, evlist, prefix);
1225                 break;
1226         case AGGR_THREAD:
1227                 evlist__for_each_entry(evlist, counter) {
1228                         print_aggr_thread(config, _target, counter, prefix);
1229                 }
1230                 break;
1231         case AGGR_GLOBAL:
1232                 evlist__for_each_entry(evlist, counter) {
1233                         print_counter_aggr(config, counter, prefix);
1234                 }
1235                 if (metric_only)
1236                         fputc('\n', config->output);
1237                 break;
1238         case AGGR_NONE:
1239                 if (metric_only)
1240                         print_no_aggr_metric(config, evlist, prefix);
1241                 else {
1242                         evlist__for_each_entry(evlist, counter) {
1243                                 if (counter->percore)
1244                                         print_percore(config, counter, prefix);
1245                                 else
1246                                         print_counter(config, counter, prefix);
1247                         }
1248                 }
1249                 break;
1250         case AGGR_UNSET:
1251         default:
1252                 break;
1253         }
1254
1255         if (!interval && !config->csv_output)
1256                 print_footer(config);
1257
1258         fflush(config->output);
1259 }