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