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, struct aggr_cpu_id 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 id.socket, 77 id.die, 78 config->csv_output ? 0 : -8, 79 id.core, 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 id.socket, 88 config->csv_output ? 0 : -8, 89 id.die, 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.socket, 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.node, 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 id.socket, 117 id.die, 118 config->csv_output ? 0 : -3, 119 id.core, config->csv_sep); 120 } else if (id.core > -1) { 121 fprintf(config->output, "CPU%*d%s", 122 config->csv_output ? 0 : -7, 123 evsel__cpus(evsel)->map[id.core], 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.thread), 131 config->csv_output ? 0 : -8, 132 perf_thread_map__pid(evsel->core.threads, id.thread), 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 nr; 148 struct aggr_cpu_id id; 149 struct evsel *evsel; 150 }; 151 152 #define METRIC_LEN 35 153 154 static void new_line_std(struct perf_stat_config *config __maybe_unused, 155 void *ctx) 156 { 157 struct outstate *os = ctx; 158 159 os->newline = true; 160 } 161 162 static void do_new_line_std(struct perf_stat_config *config, 163 struct outstate *os) 164 { 165 fputc('\n', os->fh); 166 fputs(os->prefix, os->fh); 167 aggr_printout(config, os->evsel, os->id, os->nr); 168 if (config->aggr_mode == AGGR_NONE) 169 fprintf(os->fh, " "); 170 fprintf(os->fh, " "); 171 } 172 173 static void print_metric_std(struct perf_stat_config *config, 174 void *ctx, const char *color, const char *fmt, 175 const char *unit, double val) 176 { 177 struct outstate *os = ctx; 178 FILE *out = os->fh; 179 int n; 180 bool newline = os->newline; 181 182 os->newline = false; 183 184 if (unit == NULL || fmt == NULL) { 185 fprintf(out, "%-*s", METRIC_LEN, ""); 186 return; 187 } 188 189 if (newline) 190 do_new_line_std(config, os); 191 192 n = fprintf(out, " # "); 193 if (color) 194 n += color_fprintf(out, color, fmt, val); 195 else 196 n += fprintf(out, fmt, val); 197 fprintf(out, " %-*s", METRIC_LEN - n - 1, unit); 198 } 199 200 static void new_line_csv(struct perf_stat_config *config, void *ctx) 201 { 202 struct outstate *os = ctx; 203 int i; 204 205 fputc('\n', os->fh); 206 if (os->prefix) 207 fprintf(os->fh, "%s%s", os->prefix, config->csv_sep); 208 aggr_printout(config, os->evsel, os->id, os->nr); 209 for (i = 0; i < os->nfields; i++) 210 fputs(config->csv_sep, os->fh); 211 } 212 213 static void print_metric_csv(struct perf_stat_config *config __maybe_unused, 214 void *ctx, 215 const char *color __maybe_unused, 216 const char *fmt, const char *unit, double val) 217 { 218 struct outstate *os = ctx; 219 FILE *out = os->fh; 220 char buf[64], *vals, *ends; 221 222 if (unit == NULL || fmt == NULL) { 223 fprintf(out, "%s%s", config->csv_sep, config->csv_sep); 224 return; 225 } 226 snprintf(buf, sizeof(buf), fmt, val); 227 ends = vals = skip_spaces(buf); 228 while (isdigit(*ends) || *ends == '.') 229 ends++; 230 *ends = 0; 231 fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, skip_spaces(unit)); 232 } 233 234 /* Filter out some columns that don't work well in metrics only mode */ 235 236 static bool valid_only_metric(const char *unit) 237 { 238 if (!unit) 239 return false; 240 if (strstr(unit, "/sec") || 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", 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, struct aggr_cpu_id id) 324 { 325 struct evlist *evlist = evsel->evlist; 326 int i; 327 328 if (config->aggr_mode == AGGR_NONE) 329 return id.core; 330 331 if (!config->aggr_get_id) 332 return 0; 333 334 for (i = 0; i < evsel__nr_cpus(evsel); i++) { 335 int cpu2 = evsel__cpus(evsel)->map[i]; 336 337 if (cpu_map__compare_aggr_cpu_id( 338 config->aggr_get_id(config, evlist->core.cpus, cpu2), 339 id)) { 340 return cpu2; 341 } 342 } 343 return 0; 344 } 345 346 static void abs_printout(struct perf_stat_config *config, 347 struct aggr_cpu_id 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, 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, struct aggr_cpu_id 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, evsel__name(counter)); 466 467 print_cgroup(config, counter); 468 469 if (!config->csv_output) 470 pm(config, &os, NULL, NULL, "", 0); 471 print_noise(config, counter, noise); 472 print_running(config, run, ena); 473 if (config->csv_output) 474 pm(config, &os, NULL, NULL, "", 0); 475 return; 476 } 477 478 if (!config->metric_only) 479 abs_printout(config, id, nr, counter, uval); 480 481 out.print_metric = pm; 482 out.new_line = nl; 483 out.ctx = &os; 484 out.force_header = false; 485 486 if (config->csv_output && !config->metric_only) { 487 print_noise(config, counter, noise); 488 print_running(config, run, ena); 489 } 490 491 perf_stat__print_shadow_stats(config, counter, uval, 492 first_shadow_cpu(config, counter, id), 493 &out, &config->metric_events, st); 494 if (!config->csv_output && !config->metric_only) { 495 print_noise(config, counter, noise); 496 print_running(config, run, ena); 497 } 498 } 499 500 static void aggr_update_shadow(struct perf_stat_config *config, 501 struct evlist *evlist) 502 { 503 int cpu, s; 504 struct aggr_cpu_id s2, id; 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 < evsel__nr_cpus(counter); cpu++) { 513 s2 = config->aggr_get_id(config, evlist->core.cpus, cpu); 514 if (!cpu_map__compare_aggr_cpu_id(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(evsel__name(alias), evsel__name(counter)) || 564 alias->scale != counter->scale || 565 alias->cgrp != counter->cgrp || 566 strcmp(alias->unit, counter->unit) || 567 evsel__is_clock(alias) != 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 struct aggr_cpu_id 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; 602 struct aggr_cpu_id s2; 603 604 for (cpu = 0; cpu < evsel__nr_cpus(counter); cpu++) { 605 struct perf_counts_values *counts; 606 607 s2 = config->aggr_get_id(config, evsel__cpus(counter), cpu); 608 if (!cpu_map__compare_aggr_cpu_id(s2, ad->id)) 609 continue; 610 if (first) 611 ad->nr++; 612 counts = perf_counts(counter->counts, cpu, 0); 613 /* 614 * When any result is bad, make them all to give 615 * consistent output in interval mode. 616 */ 617 if (counts->ena == 0 || counts->run == 0 || 618 counter->counts->scaled == -1) { 619 ad->ena = 0; 620 ad->run = 0; 621 break; 622 } 623 ad->val += counts->val; 624 ad->ena += counts->ena; 625 ad->run += counts->run; 626 } 627 } 628 629 static void print_counter_aggrdata(struct perf_stat_config *config, 630 struct evsel *counter, int s, 631 char *prefix, bool metric_only, 632 bool *first, int cpu) 633 { 634 struct aggr_data ad; 635 FILE *output = config->output; 636 u64 ena, run, val; 637 int nr; 638 struct aggr_cpu_id id; 639 double uval; 640 641 ad.id = id = config->aggr_map->map[s]; 642 ad.val = ad.ena = ad.run = 0; 643 ad.nr = 0; 644 if (!collect_data(config, counter, aggr_cb, &ad)) 645 return; 646 647 nr = ad.nr; 648 ena = ad.ena; 649 run = ad.run; 650 val = ad.val; 651 if (*first && metric_only) { 652 *first = false; 653 aggr_printout(config, counter, id, nr); 654 } 655 if (prefix && !metric_only) 656 fprintf(output, "%s", prefix); 657 658 uval = val * counter->scale; 659 if (cpu != -1) { 660 id = cpu_map__empty_aggr_cpu_id(); 661 id.core = cpu; 662 } 663 printout(config, id, nr, counter, uval, 664 prefix, run, ena, 1.0, &rt_stat); 665 if (!metric_only) 666 fputc('\n', output); 667 } 668 669 static void print_aggr(struct perf_stat_config *config, 670 struct evlist *evlist, 671 char *prefix) 672 { 673 bool metric_only = config->metric_only; 674 FILE *output = config->output; 675 struct evsel *counter; 676 int s; 677 bool first; 678 679 if (!config->aggr_map || !config->aggr_get_id) 680 return; 681 682 aggr_update_shadow(config, evlist); 683 684 /* 685 * With metric_only everything is on a single line. 686 * Without each counter has its own line. 687 */ 688 for (s = 0; s < config->aggr_map->nr; s++) { 689 if (prefix && metric_only) 690 fprintf(output, "%s", prefix); 691 692 first = true; 693 evlist__for_each_entry(evlist, counter) { 694 print_counter_aggrdata(config, counter, s, 695 prefix, metric_only, 696 &first, -1); 697 } 698 if (metric_only) 699 fputc('\n', output); 700 } 701 } 702 703 static int cmp_val(const void *a, const void *b) 704 { 705 return ((struct perf_aggr_thread_value *)b)->val - 706 ((struct perf_aggr_thread_value *)a)->val; 707 } 708 709 static struct perf_aggr_thread_value *sort_aggr_thread( 710 struct evsel *counter, 711 int nthreads, int ncpus, 712 int *ret, 713 struct target *_target) 714 { 715 int cpu, thread, i = 0; 716 double uval; 717 struct perf_aggr_thread_value *buf; 718 719 buf = calloc(nthreads, sizeof(struct perf_aggr_thread_value)); 720 if (!buf) 721 return NULL; 722 723 for (thread = 0; thread < nthreads; thread++) { 724 u64 ena = 0, run = 0, val = 0; 725 726 for (cpu = 0; cpu < ncpus; cpu++) { 727 val += perf_counts(counter->counts, cpu, thread)->val; 728 ena += perf_counts(counter->counts, cpu, thread)->ena; 729 run += perf_counts(counter->counts, cpu, thread)->run; 730 } 731 732 uval = val * counter->scale; 733 734 /* 735 * Skip value 0 when enabling --per-thread globally, 736 * otherwise too many 0 output. 737 */ 738 if (uval == 0.0 && target__has_per_thread(_target)) 739 continue; 740 741 buf[i].counter = counter; 742 buf[i].id = cpu_map__empty_aggr_cpu_id(); 743 buf[i].id.thread = thread; 744 buf[i].uval = uval; 745 buf[i].val = val; 746 buf[i].run = run; 747 buf[i].ena = ena; 748 i++; 749 } 750 751 qsort(buf, i, sizeof(struct perf_aggr_thread_value), cmp_val); 752 753 if (ret) 754 *ret = i; 755 756 return buf; 757 } 758 759 static void print_aggr_thread(struct perf_stat_config *config, 760 struct target *_target, 761 struct evsel *counter, char *prefix) 762 { 763 FILE *output = config->output; 764 int nthreads = perf_thread_map__nr(counter->core.threads); 765 int ncpus = perf_cpu_map__nr(counter->core.cpus); 766 int thread, sorted_threads; 767 struct aggr_cpu_id id; 768 struct perf_aggr_thread_value *buf; 769 770 buf = sort_aggr_thread(counter, nthreads, ncpus, &sorted_threads, _target); 771 if (!buf) { 772 perror("cannot sort aggr thread"); 773 return; 774 } 775 776 for (thread = 0; thread < sorted_threads; thread++) { 777 if (prefix) 778 fprintf(output, "%s", prefix); 779 780 id = buf[thread].id; 781 if (config->stats) 782 printout(config, id, 0, buf[thread].counter, buf[thread].uval, 783 prefix, buf[thread].run, buf[thread].ena, 1.0, 784 &config->stats[id.thread]); 785 else 786 printout(config, id, 0, buf[thread].counter, buf[thread].uval, 787 prefix, buf[thread].run, buf[thread].ena, 1.0, 788 &rt_stat); 789 fputc('\n', output); 790 } 791 792 free(buf); 793 } 794 795 struct caggr_data { 796 double avg, avg_enabled, avg_running; 797 }; 798 799 static void counter_aggr_cb(struct perf_stat_config *config __maybe_unused, 800 struct evsel *counter, void *data, 801 bool first __maybe_unused) 802 { 803 struct caggr_data *cd = data; 804 struct perf_stat_evsel *ps = counter->stats; 805 806 cd->avg += avg_stats(&ps->res_stats[0]); 807 cd->avg_enabled += avg_stats(&ps->res_stats[1]); 808 cd->avg_running += avg_stats(&ps->res_stats[2]); 809 } 810 811 /* 812 * Print out the results of a single counter: 813 * aggregated counts in system-wide mode 814 */ 815 static void print_counter_aggr(struct perf_stat_config *config, 816 struct evsel *counter, char *prefix) 817 { 818 bool metric_only = config->metric_only; 819 FILE *output = config->output; 820 double uval; 821 struct caggr_data cd = { .avg = 0.0 }; 822 823 if (!collect_data(config, counter, counter_aggr_cb, &cd)) 824 return; 825 826 if (prefix && !metric_only) 827 fprintf(output, "%s", prefix); 828 829 uval = cd.avg * counter->scale; 830 printout(config, cpu_map__empty_aggr_cpu_id(), 0, counter, uval, prefix, cd.avg_running, 831 cd.avg_enabled, cd.avg, &rt_stat); 832 if (!metric_only) 833 fprintf(output, "\n"); 834 } 835 836 static void counter_cb(struct perf_stat_config *config __maybe_unused, 837 struct evsel *counter, void *data, 838 bool first __maybe_unused) 839 { 840 struct aggr_data *ad = data; 841 842 ad->val += perf_counts(counter->counts, ad->cpu, 0)->val; 843 ad->ena += perf_counts(counter->counts, ad->cpu, 0)->ena; 844 ad->run += perf_counts(counter->counts, ad->cpu, 0)->run; 845 } 846 847 /* 848 * Print out the results of a single counter: 849 * does not use aggregated count in system-wide 850 */ 851 static void print_counter(struct perf_stat_config *config, 852 struct evsel *counter, char *prefix) 853 { 854 FILE *output = config->output; 855 u64 ena, run, val; 856 double uval; 857 int cpu; 858 struct aggr_cpu_id id; 859 860 for (cpu = 0; cpu < evsel__nr_cpus(counter); cpu++) { 861 struct aggr_data ad = { .cpu = cpu }; 862 863 if (!collect_data(config, counter, counter_cb, &ad)) 864 return; 865 val = ad.val; 866 ena = ad.ena; 867 run = ad.run; 868 869 if (prefix) 870 fprintf(output, "%s", prefix); 871 872 uval = val * counter->scale; 873 id = cpu_map__empty_aggr_cpu_id(); 874 id.core = cpu; 875 printout(config, id, 0, counter, uval, prefix, 876 run, ena, 1.0, &rt_stat); 877 878 fputc('\n', output); 879 } 880 } 881 882 static void print_no_aggr_metric(struct perf_stat_config *config, 883 struct evlist *evlist, 884 char *prefix) 885 { 886 int cpu; 887 int nrcpus = 0; 888 struct evsel *counter; 889 u64 ena, run, val; 890 double uval; 891 struct aggr_cpu_id id; 892 893 nrcpus = evlist->core.cpus->nr; 894 for (cpu = 0; cpu < nrcpus; cpu++) { 895 bool first = true; 896 897 if (prefix) 898 fputs(prefix, config->output); 899 evlist__for_each_entry(evlist, counter) { 900 id = cpu_map__empty_aggr_cpu_id(); 901 id.core = cpu; 902 if (first) { 903 aggr_printout(config, counter, id, 0); 904 first = false; 905 } 906 val = perf_counts(counter->counts, cpu, 0)->val; 907 ena = perf_counts(counter->counts, cpu, 0)->ena; 908 run = perf_counts(counter->counts, cpu, 0)->run; 909 910 uval = val * counter->scale; 911 printout(config, id, 0, counter, uval, prefix, 912 run, ena, 1.0, &rt_stat); 913 } 914 fputc('\n', config->output); 915 } 916 } 917 918 static int aggr_header_lens[] = { 919 [AGGR_CORE] = 24, 920 [AGGR_DIE] = 18, 921 [AGGR_SOCKET] = 12, 922 [AGGR_NONE] = 6, 923 [AGGR_THREAD] = 24, 924 [AGGR_GLOBAL] = 0, 925 }; 926 927 static const char *aggr_header_csv[] = { 928 [AGGR_CORE] = "core,cpus,", 929 [AGGR_DIE] = "die,cpus", 930 [AGGR_SOCKET] = "socket,cpus", 931 [AGGR_NONE] = "cpu,", 932 [AGGR_THREAD] = "comm-pid,", 933 [AGGR_GLOBAL] = "" 934 }; 935 936 static void print_metric_headers(struct perf_stat_config *config, 937 struct evlist *evlist, 938 const char *prefix, bool no_indent) 939 { 940 struct perf_stat_output_ctx out; 941 struct evsel *counter; 942 struct outstate os = { 943 .fh = config->output 944 }; 945 946 if (prefix) 947 fprintf(config->output, "%s", prefix); 948 949 if (!config->csv_output && !no_indent) 950 fprintf(config->output, "%*s", 951 aggr_header_lens[config->aggr_mode], ""); 952 if (config->csv_output) { 953 if (config->interval) 954 fputs("time,", config->output); 955 fputs(aggr_header_csv[config->aggr_mode], config->output); 956 } 957 958 /* Print metrics headers only */ 959 evlist__for_each_entry(evlist, counter) { 960 os.evsel = counter; 961 out.ctx = &os; 962 out.print_metric = print_metric_header; 963 out.new_line = new_line_metric; 964 out.force_header = true; 965 perf_stat__print_shadow_stats(config, counter, 0, 966 0, 967 &out, 968 &config->metric_events, 969 &rt_stat); 970 } 971 fputc('\n', config->output); 972 } 973 974 static void print_interval(struct perf_stat_config *config, 975 struct evlist *evlist, 976 char *prefix, struct timespec *ts) 977 { 978 bool metric_only = config->metric_only; 979 unsigned int unit_width = config->unit_width; 980 FILE *output = config->output; 981 static int num_print_interval; 982 983 if (config->interval_clear) 984 puts(CONSOLE_CLEAR); 985 986 sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, config->csv_sep); 987 988 if ((num_print_interval == 0 && !config->csv_output) || config->interval_clear) { 989 switch (config->aggr_mode) { 990 case AGGR_NODE: 991 fprintf(output, "# time node cpus"); 992 if (!metric_only) 993 fprintf(output, " counts %*s events\n", unit_width, "unit"); 994 break; 995 case AGGR_SOCKET: 996 fprintf(output, "# time socket cpus"); 997 if (!metric_only) 998 fprintf(output, " counts %*s events\n", unit_width, "unit"); 999 break; 1000 case AGGR_DIE: 1001 fprintf(output, "# time die cpus"); 1002 if (!metric_only) 1003 fprintf(output, " counts %*s events\n", unit_width, "unit"); 1004 break; 1005 case AGGR_CORE: 1006 fprintf(output, "# time core cpus"); 1007 if (!metric_only) 1008 fprintf(output, " counts %*s events\n", unit_width, "unit"); 1009 break; 1010 case AGGR_NONE: 1011 fprintf(output, "# time CPU "); 1012 if (!metric_only) 1013 fprintf(output, " counts %*s events\n", unit_width, "unit"); 1014 break; 1015 case AGGR_THREAD: 1016 fprintf(output, "# time comm-pid"); 1017 if (!metric_only) 1018 fprintf(output, " counts %*s events\n", unit_width, "unit"); 1019 break; 1020 case AGGR_GLOBAL: 1021 default: 1022 fprintf(output, "# time"); 1023 if (!metric_only) 1024 fprintf(output, " counts %*s events\n", unit_width, "unit"); 1025 case AGGR_UNSET: 1026 break; 1027 } 1028 } 1029 1030 if ((num_print_interval == 0 || config->interval_clear) && metric_only) 1031 print_metric_headers(config, evlist, " ", true); 1032 if (++num_print_interval == 25) 1033 num_print_interval = 0; 1034 } 1035 1036 static void print_header(struct perf_stat_config *config, 1037 struct target *_target, 1038 int argc, const char **argv) 1039 { 1040 FILE *output = config->output; 1041 int i; 1042 1043 fflush(stdout); 1044 1045 if (!config->csv_output) { 1046 fprintf(output, "\n"); 1047 fprintf(output, " Performance counter stats for "); 1048 if (_target->bpf_str) 1049 fprintf(output, "\'BPF program(s) %s", _target->bpf_str); 1050 else if (_target->system_wide) 1051 fprintf(output, "\'system wide"); 1052 else if (_target->cpu_list) 1053 fprintf(output, "\'CPU(s) %s", _target->cpu_list); 1054 else if (!target__has_task(_target)) { 1055 fprintf(output, "\'%s", argv ? argv[0] : "pipe"); 1056 for (i = 1; argv && (i < argc); i++) 1057 fprintf(output, " %s", argv[i]); 1058 } else if (_target->pid) 1059 fprintf(output, "process id \'%s", _target->pid); 1060 else 1061 fprintf(output, "thread id \'%s", _target->tid); 1062 1063 fprintf(output, "\'"); 1064 if (config->run_count > 1) 1065 fprintf(output, " (%d runs)", config->run_count); 1066 fprintf(output, ":\n\n"); 1067 } 1068 } 1069 1070 static int get_precision(double num) 1071 { 1072 if (num > 1) 1073 return 0; 1074 1075 return lround(ceil(-log10(num))); 1076 } 1077 1078 static void print_table(struct perf_stat_config *config, 1079 FILE *output, int precision, double avg) 1080 { 1081 char tmp[64]; 1082 int idx, indent = 0; 1083 1084 scnprintf(tmp, 64, " %17.*f", precision, avg); 1085 while (tmp[indent] == ' ') 1086 indent++; 1087 1088 fprintf(output, "%*s# Table of individual measurements:\n", indent, ""); 1089 1090 for (idx = 0; idx < config->run_count; idx++) { 1091 double run = (double) config->walltime_run[idx] / NSEC_PER_SEC; 1092 int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5); 1093 1094 fprintf(output, " %17.*f (%+.*f) ", 1095 precision, run, precision, run - avg); 1096 1097 for (h = 0; h < n; h++) 1098 fprintf(output, "#"); 1099 1100 fprintf(output, "\n"); 1101 } 1102 1103 fprintf(output, "\n%*s# Final result:\n", indent, ""); 1104 } 1105 1106 static double timeval2double(struct timeval *t) 1107 { 1108 return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC; 1109 } 1110 1111 static void print_footer(struct perf_stat_config *config) 1112 { 1113 double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC; 1114 FILE *output = config->output; 1115 1116 if (!config->null_run) 1117 fprintf(output, "\n"); 1118 1119 if (config->run_count == 1) { 1120 fprintf(output, " %17.9f seconds time elapsed", avg); 1121 1122 if (config->ru_display) { 1123 double ru_utime = timeval2double(&config->ru_data.ru_utime); 1124 double ru_stime = timeval2double(&config->ru_data.ru_stime); 1125 1126 fprintf(output, "\n\n"); 1127 fprintf(output, " %17.9f seconds user\n", ru_utime); 1128 fprintf(output, " %17.9f seconds sys\n", ru_stime); 1129 } 1130 } else { 1131 double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC; 1132 /* 1133 * Display at most 2 more significant 1134 * digits than the stddev inaccuracy. 1135 */ 1136 int precision = get_precision(sd) + 2; 1137 1138 if (config->walltime_run_table) 1139 print_table(config, output, precision, avg); 1140 1141 fprintf(output, " %17.*f +- %.*f seconds time elapsed", 1142 precision, avg, precision, sd); 1143 1144 print_noise_pct(config, sd, avg); 1145 } 1146 fprintf(output, "\n\n"); 1147 1148 if (config->print_free_counters_hint && sysctl__nmi_watchdog_enabled()) 1149 fprintf(output, 1150 "Some events weren't counted. Try disabling the NMI watchdog:\n" 1151 " echo 0 > /proc/sys/kernel/nmi_watchdog\n" 1152 " perf stat ...\n" 1153 " echo 1 > /proc/sys/kernel/nmi_watchdog\n"); 1154 1155 if (config->print_mixed_hw_group_error) 1156 fprintf(output, 1157 "The events in group usually have to be from " 1158 "the same PMU. Try reorganizing the group.\n"); 1159 } 1160 1161 static void print_percore_thread(struct perf_stat_config *config, 1162 struct evsel *counter, char *prefix) 1163 { 1164 int s; 1165 struct aggr_cpu_id s2, id; 1166 bool first = true; 1167 1168 for (int i = 0; i < evsel__nr_cpus(counter); i++) { 1169 s2 = config->aggr_get_id(config, evsel__cpus(counter), i); 1170 for (s = 0; s < config->aggr_map->nr; s++) { 1171 id = config->aggr_map->map[s]; 1172 if (cpu_map__compare_aggr_cpu_id(s2, id)) 1173 break; 1174 } 1175 1176 print_counter_aggrdata(config, counter, s, 1177 prefix, false, 1178 &first, i); 1179 } 1180 } 1181 1182 static void print_percore(struct perf_stat_config *config, 1183 struct evsel *counter, char *prefix) 1184 { 1185 bool metric_only = config->metric_only; 1186 FILE *output = config->output; 1187 int s; 1188 bool first = true; 1189 1190 if (!config->aggr_map || !config->aggr_get_id) 1191 return; 1192 1193 if (config->percore_show_thread) 1194 return print_percore_thread(config, counter, prefix); 1195 1196 for (s = 0; s < config->aggr_map->nr; s++) { 1197 if (prefix && metric_only) 1198 fprintf(output, "%s", prefix); 1199 1200 print_counter_aggrdata(config, counter, s, 1201 prefix, metric_only, 1202 &first, -1); 1203 } 1204 1205 if (metric_only) 1206 fputc('\n', output); 1207 } 1208 1209 void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config, 1210 struct target *_target, struct timespec *ts, int argc, const char **argv) 1211 { 1212 bool metric_only = config->metric_only; 1213 int interval = config->interval; 1214 struct evsel *counter; 1215 char buf[64], *prefix = NULL; 1216 1217 if (interval) 1218 print_interval(config, evlist, prefix = buf, ts); 1219 else 1220 print_header(config, _target, argc, argv); 1221 1222 if (metric_only) { 1223 static int num_print_iv; 1224 1225 if (num_print_iv == 0 && !interval) 1226 print_metric_headers(config, evlist, prefix, false); 1227 if (num_print_iv++ == 25) 1228 num_print_iv = 0; 1229 if (config->aggr_mode == AGGR_GLOBAL && prefix) 1230 fprintf(config->output, "%s", prefix); 1231 } 1232 1233 switch (config->aggr_mode) { 1234 case AGGR_CORE: 1235 case AGGR_DIE: 1236 case AGGR_SOCKET: 1237 case AGGR_NODE: 1238 print_aggr(config, evlist, prefix); 1239 break; 1240 case AGGR_THREAD: 1241 evlist__for_each_entry(evlist, counter) { 1242 print_aggr_thread(config, _target, counter, prefix); 1243 } 1244 break; 1245 case AGGR_GLOBAL: 1246 evlist__for_each_entry(evlist, counter) { 1247 print_counter_aggr(config, counter, prefix); 1248 } 1249 if (metric_only) 1250 fputc('\n', config->output); 1251 break; 1252 case AGGR_NONE: 1253 if (metric_only) 1254 print_no_aggr_metric(config, evlist, prefix); 1255 else { 1256 evlist__for_each_entry(evlist, counter) { 1257 if (counter->percore) 1258 print_percore(config, counter, prefix); 1259 else 1260 print_counter(config, counter, prefix); 1261 } 1262 } 1263 break; 1264 case AGGR_UNSET: 1265 default: 1266 break; 1267 } 1268 1269 if (!interval && !config->csv_output) 1270 print_footer(config); 1271 1272 fflush(config->output); 1273 } 1274