1 #include <stdlib.h> 2 #include <stdio.h> 3 #include <inttypes.h> 4 #include <linux/string.h> 5 #include <linux/time64.h> 6 #include <math.h> 7 #include <perf/cpumap.h> 8 #include "color.h" 9 #include "counts.h" 10 #include "debug.h" 11 #include "evlist.h" 12 #include "evsel.h" 13 #include "stat.h" 14 #include "top.h" 15 #include "thread_map.h" 16 #include "cpumap.h" 17 #include "string2.h" 18 #include <linux/ctype.h> 19 #include "cgroup.h" 20 #include <api/fs/fs.h> 21 #include "util.h" 22 #include "iostat.h" 23 #include "pmu.h" 24 #include "pmus.h" 25 #include "tool_pmu.h" 26 27 #define CNTR_NOT_SUPPORTED "<not supported>" 28 #define CNTR_NOT_COUNTED "<not counted>" 29 30 #define MGROUP_LEN 50 31 #define METRIC_LEN 38 32 #define EVNAME_LEN 32 33 #define COUNTS_LEN 18 34 #define INTERVAL_LEN 16 35 #define CGROUP_LEN 16 36 #define COMM_LEN 16 37 #define PID_LEN 7 38 #define CPUS_LEN 4 39 40 static int aggr_header_lens[] = { 41 [AGGR_CORE] = 18, 42 [AGGR_CACHE] = 22, 43 [AGGR_CLUSTER] = 20, 44 [AGGR_DIE] = 12, 45 [AGGR_SOCKET] = 6, 46 [AGGR_NODE] = 6, 47 [AGGR_NONE] = 6, 48 [AGGR_THREAD] = 16, 49 [AGGR_GLOBAL] = 0, 50 }; 51 52 static const char *aggr_header_csv[] = { 53 [AGGR_CORE] = "core,ctrs,", 54 [AGGR_CACHE] = "cache,ctrs,", 55 [AGGR_CLUSTER] = "cluster,ctrs,", 56 [AGGR_DIE] = "die,ctrs,", 57 [AGGR_SOCKET] = "socket,ctrs,", 58 [AGGR_NONE] = "cpu,", 59 [AGGR_THREAD] = "comm-pid,", 60 [AGGR_NODE] = "node,", 61 [AGGR_GLOBAL] = "" 62 }; 63 64 static const char *aggr_header_std[] = { 65 [AGGR_CORE] = "core", 66 [AGGR_CACHE] = "cache", 67 [AGGR_CLUSTER] = "cluster", 68 [AGGR_DIE] = "die", 69 [AGGR_SOCKET] = "socket", 70 [AGGR_NONE] = "cpu", 71 [AGGR_THREAD] = "comm-pid", 72 [AGGR_NODE] = "node", 73 [AGGR_GLOBAL] = "" 74 }; 75 76 const char *metric_threshold_classify__color(enum metric_threshold_classify thresh) 77 { 78 const char * const colors[] = { 79 "", /* unknown */ 80 PERF_COLOR_RED, /* bad */ 81 PERF_COLOR_MAGENTA, /* nearly bad */ 82 PERF_COLOR_YELLOW, /* less good */ 83 PERF_COLOR_GREEN, /* good */ 84 }; 85 static_assert(ARRAY_SIZE(colors) - 1 == METRIC_THRESHOLD_GOOD, "missing enum value"); 86 return colors[thresh]; 87 } 88 89 static const char *metric_threshold_classify__str(enum metric_threshold_classify thresh) 90 { 91 const char * const strs[] = { 92 "unknown", 93 "bad", 94 "nearly bad", 95 "less good", 96 "good", 97 }; 98 static_assert(ARRAY_SIZE(strs) - 1 == METRIC_THRESHOLD_GOOD, "missing enum value"); 99 return strs[thresh]; 100 } 101 102 static void print_running_std(struct perf_stat_config *config, u64 run, u64 ena) 103 { 104 if (run != ena) 105 fprintf(config->output, " (%.2f%%)", 100.0 * run / ena); 106 } 107 108 static void print_running_csv(struct perf_stat_config *config, u64 run, u64 ena) 109 { 110 double enabled_percent = 100; 111 112 if (run != ena) 113 enabled_percent = 100 * run / ena; 114 fprintf(config->output, "%s%" PRIu64 "%s%.2f", 115 config->csv_sep, run, config->csv_sep, enabled_percent); 116 } 117 struct outstate { 118 /* Std mode: insert a newline before the next metric */ 119 bool newline; 120 /* JSON mode: track need for comma for a previous field or not */ 121 bool first; 122 /* Num CSV separators remaining to pad out when not all fields are printed */ 123 int csv_col_pad; 124 125 /* 126 * The following don't track state across fields, but are here as a shortcut to 127 * pass data to the print functions. The alternative would be to update the 128 * function signatures of the entire print stack to pass them through. 129 */ 130 /* Place to output to */ 131 FILE * const fh; 132 /* Lines are timestamped in --interval-print mode */ 133 char timestamp[64]; 134 /* Num items aggregated in current line. See struct perf_stat_aggr.nr */ 135 int aggr_nr; 136 /* Core/socket/die etc ID for the current line */ 137 struct aggr_cpu_id id; 138 /* Event for current line */ 139 struct evsel *evsel; 140 /* Cgroup for current line */ 141 struct cgroup *cgrp; 142 }; 143 144 static const char *json_sep(struct outstate *os) 145 { 146 const char *sep = os->first ? "" : ", "; 147 148 os->first = false; 149 return sep; 150 } 151 152 #define json_out(os, format, ...) fprintf((os)->fh, "%s" format, json_sep(os), ##__VA_ARGS__) 153 154 static void print_running_json(struct outstate *os, u64 run, u64 ena) 155 { 156 double enabled_percent = 100; 157 158 if (run != ena) 159 enabled_percent = 100 * run / ena; 160 json_out(os, "\"event-runtime\" : %" PRIu64 ", \"pcnt-running\" : %.2f", 161 run, enabled_percent); 162 } 163 164 static void print_running(struct perf_stat_config *config, struct outstate *os, 165 u64 run, u64 ena, bool before_metric) 166 { 167 if (config->json_output) { 168 if (before_metric) 169 print_running_json(os, run, ena); 170 } else if (config->csv_output) { 171 if (before_metric) 172 print_running_csv(config, run, ena); 173 } else { 174 if (!before_metric) 175 print_running_std(config, run, ena); 176 } 177 } 178 179 static void print_noise_pct_std(struct perf_stat_config *config, 180 double pct) 181 { 182 if (pct) 183 fprintf(config->output, " ( +-%6.2f%% )", pct); 184 } 185 186 static void print_noise_pct_csv(struct perf_stat_config *config, 187 double pct) 188 { 189 fprintf(config->output, "%s%.2f%%", config->csv_sep, pct); 190 } 191 192 static void print_noise_pct_json(struct outstate *os, 193 double pct) 194 { 195 json_out(os, "\"variance\" : %.2f", pct); 196 } 197 198 static void print_noise_pct(struct perf_stat_config *config, struct outstate *os, 199 double total, double avg, bool before_metric) 200 { 201 double pct = rel_stddev_stats(total, avg); 202 203 if (config->json_output) { 204 if (before_metric) 205 print_noise_pct_json(os, pct); 206 } else if (config->csv_output) { 207 if (before_metric) 208 print_noise_pct_csv(config, pct); 209 } else { 210 if (!before_metric) 211 print_noise_pct_std(config, pct); 212 } 213 } 214 215 static void print_noise(struct perf_stat_config *config, struct outstate *os, 216 struct evsel *evsel, double avg, bool before_metric) 217 { 218 struct perf_stat_evsel *ps; 219 220 if (config->run_count == 1) 221 return; 222 223 ps = evsel->stats; 224 print_noise_pct(config, os, stddev_stats(&ps->res_stats), avg, before_metric); 225 } 226 227 static void print_cgroup_std(struct perf_stat_config *config, const char *cgrp_name) 228 { 229 fprintf(config->output, " %-*s", CGROUP_LEN, cgrp_name); 230 } 231 232 static void print_cgroup_csv(struct perf_stat_config *config, const char *cgrp_name) 233 { 234 fprintf(config->output, "%s%s", config->csv_sep, cgrp_name); 235 } 236 237 static void print_cgroup_json(struct outstate *os, const char *cgrp_name) 238 { 239 json_out(os, "\"cgroup\" : \"%s\"", cgrp_name); 240 } 241 242 static void print_cgroup(struct perf_stat_config *config, struct outstate *os, 243 struct cgroup *cgrp) 244 { 245 if (nr_cgroups || config->cgroup_list) { 246 const char *cgrp_name = cgrp ? cgrp->name : ""; 247 248 if (config->json_output) 249 print_cgroup_json(os, cgrp_name); 250 else if (config->csv_output) 251 print_cgroup_csv(config, cgrp_name); 252 else 253 print_cgroup_std(config, cgrp_name); 254 } 255 } 256 257 static void print_aggr_id_std(struct perf_stat_config *config, 258 struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr) 259 { 260 FILE *output = config->output; 261 int idx = config->aggr_mode; 262 char buf[128]; 263 264 switch (config->aggr_mode) { 265 case AGGR_CORE: 266 snprintf(buf, sizeof(buf), "S%d-D%d-C%d", id.socket, id.die, id.core); 267 break; 268 case AGGR_CACHE: 269 snprintf(buf, sizeof(buf), "S%d-D%d-L%d-ID%d", 270 id.socket, id.die, id.cache_lvl, id.cache); 271 break; 272 case AGGR_CLUSTER: 273 snprintf(buf, sizeof(buf), "S%d-D%d-CLS%d", id.socket, id.die, id.cluster); 274 break; 275 case AGGR_DIE: 276 snprintf(buf, sizeof(buf), "S%d-D%d", id.socket, id.die); 277 break; 278 case AGGR_SOCKET: 279 snprintf(buf, sizeof(buf), "S%d", id.socket); 280 break; 281 case AGGR_NODE: 282 snprintf(buf, sizeof(buf), "N%d", id.node); 283 break; 284 case AGGR_NONE: 285 if (evsel->percore && !config->percore_show_thread) { 286 snprintf(buf, sizeof(buf), "S%d-D%d-C%d ", 287 id.socket, id.die, id.core); 288 fprintf(output, "%-*s ", 289 aggr_header_lens[AGGR_CORE], buf); 290 } else if (id.cpu.cpu > -1) { 291 fprintf(output, "CPU%-*d ", 292 aggr_header_lens[AGGR_NONE] - 3, id.cpu.cpu); 293 } 294 return; 295 case AGGR_THREAD: 296 fprintf(output, "%*s-%-*d ", 297 COMM_LEN, perf_thread_map__comm(evsel->core.threads, id.thread_idx), 298 PID_LEN, perf_thread_map__pid(evsel->core.threads, id.thread_idx)); 299 return; 300 case AGGR_GLOBAL: 301 case AGGR_UNSET: 302 case AGGR_MAX: 303 default: 304 return; 305 } 306 307 fprintf(output, "%-*s %*d ", aggr_header_lens[idx], buf, /*strlen("ctrs")*/ 4, aggr_nr); 308 } 309 310 static void print_aggr_id_csv(struct perf_stat_config *config, 311 struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr) 312 { 313 FILE *output = config->output; 314 const char *sep = config->csv_sep; 315 316 switch (config->aggr_mode) { 317 case AGGR_CORE: 318 fprintf(output, "S%d-D%d-C%d%s%d%s", 319 id.socket, id.die, id.core, sep, aggr_nr, sep); 320 break; 321 case AGGR_CACHE: 322 fprintf(config->output, "S%d-D%d-L%d-ID%d%s%d%s", 323 id.socket, id.die, id.cache_lvl, id.cache, sep, aggr_nr, sep); 324 break; 325 case AGGR_CLUSTER: 326 fprintf(config->output, "S%d-D%d-CLS%d%s%d%s", 327 id.socket, id.die, id.cluster, sep, aggr_nr, sep); 328 break; 329 case AGGR_DIE: 330 fprintf(output, "S%d-D%d%s%d%s", 331 id.socket, id.die, sep, aggr_nr, sep); 332 break; 333 case AGGR_SOCKET: 334 fprintf(output, "S%d%s%d%s", 335 id.socket, sep, aggr_nr, sep); 336 break; 337 case AGGR_NODE: 338 fprintf(output, "N%d%s%d%s", 339 id.node, sep, aggr_nr, sep); 340 break; 341 case AGGR_NONE: 342 if (evsel->percore && !config->percore_show_thread) { 343 fprintf(output, "S%d-D%d-C%d%s", 344 id.socket, id.die, id.core, sep); 345 } else if (id.cpu.cpu > -1) { 346 fprintf(output, "CPU%d%s", 347 id.cpu.cpu, sep); 348 } 349 break; 350 case AGGR_THREAD: 351 fprintf(output, "%s-%d%s", 352 perf_thread_map__comm(evsel->core.threads, id.thread_idx), 353 perf_thread_map__pid(evsel->core.threads, id.thread_idx), 354 sep); 355 break; 356 case AGGR_GLOBAL: 357 case AGGR_UNSET: 358 case AGGR_MAX: 359 default: 360 break; 361 } 362 } 363 364 static void print_aggr_id_json(struct perf_stat_config *config, struct outstate *os, 365 struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr) 366 { 367 switch (config->aggr_mode) { 368 case AGGR_CORE: 369 json_out(os, "\"core\" : \"S%d-D%d-C%d\", \"counters\" : %d", 370 id.socket, id.die, id.core, aggr_nr); 371 break; 372 case AGGR_CACHE: 373 json_out(os, "\"cache\" : \"S%d-D%d-L%d-ID%d\", \"counters\" : %d", 374 id.socket, id.die, id.cache_lvl, id.cache, aggr_nr); 375 break; 376 case AGGR_CLUSTER: 377 json_out(os, "\"cluster\" : \"S%d-D%d-CLS%d\", \"counters\" : %d", 378 id.socket, id.die, id.cluster, aggr_nr); 379 break; 380 case AGGR_DIE: 381 json_out(os, "\"die\" : \"S%d-D%d\", \"counters\" : %d", 382 id.socket, id.die, aggr_nr); 383 break; 384 case AGGR_SOCKET: 385 json_out(os, "\"socket\" : \"S%d\", \"counters\" : %d", 386 id.socket, aggr_nr); 387 break; 388 case AGGR_NODE: 389 json_out(os, "\"node\" : \"N%d\", \"counters\" : %d", 390 id.node, aggr_nr); 391 break; 392 case AGGR_NONE: 393 if (evsel->percore && !config->percore_show_thread) { 394 json_out(os, "\"core\" : \"S%d-D%d-C%d\"", 395 id.socket, id.die, id.core); 396 } else if (id.cpu.cpu > -1) { 397 json_out(os, "\"cpu\" : \"%d\"", 398 id.cpu.cpu); 399 } 400 break; 401 case AGGR_THREAD: 402 json_out(os, "\"thread\" : \"%s-%d\"", 403 perf_thread_map__comm(evsel->core.threads, id.thread_idx), 404 perf_thread_map__pid(evsel->core.threads, id.thread_idx)); 405 break; 406 case AGGR_GLOBAL: 407 case AGGR_UNSET: 408 case AGGR_MAX: 409 default: 410 break; 411 } 412 } 413 414 static void aggr_printout(struct perf_stat_config *config, struct outstate *os, 415 struct evsel *evsel, struct aggr_cpu_id id, int aggr_nr) 416 { 417 if (config->json_output) 418 print_aggr_id_json(config, os, evsel, id, aggr_nr); 419 else if (config->csv_output) 420 print_aggr_id_csv(config, evsel, id, aggr_nr); 421 else 422 print_aggr_id_std(config, evsel, id, aggr_nr); 423 } 424 425 static void new_line_std(struct perf_stat_config *config __maybe_unused, 426 void *ctx) 427 { 428 struct outstate *os = ctx; 429 430 os->newline = true; 431 } 432 433 static inline void __new_line_std_csv(struct perf_stat_config *config, 434 struct outstate *os) 435 { 436 fputc('\n', os->fh); 437 if (config->interval) 438 fputs(os->timestamp, os->fh); 439 aggr_printout(config, os, os->evsel, os->id, os->aggr_nr); 440 } 441 442 static inline void __new_line_std(struct perf_stat_config *config, struct outstate *os) 443 { 444 fprintf(os->fh, "%*s", COUNTS_LEN + EVNAME_LEN + config->unit_width + 2, ""); 445 } 446 447 static void do_new_line_std(struct perf_stat_config *config, 448 struct outstate *os) 449 { 450 __new_line_std_csv(config, os); 451 if (config->aggr_mode == AGGR_NONE) 452 fprintf(os->fh, " "); 453 __new_line_std(config, os); 454 } 455 456 static void print_metric_std(struct perf_stat_config *config, 457 void *ctx, enum metric_threshold_classify thresh, 458 const char *fmt, const char *unit, double val) 459 { 460 struct outstate *os = ctx; 461 FILE *out = os->fh; 462 int n; 463 bool newline = os->newline; 464 const char *color = metric_threshold_classify__color(thresh); 465 466 os->newline = false; 467 468 if (unit == NULL || fmt == NULL) { 469 fprintf(out, "%-*s", METRIC_LEN, ""); 470 return; 471 } 472 473 if (newline) 474 do_new_line_std(config, os); 475 476 n = fprintf(out, " # "); 477 if (color) 478 n += color_fprintf(out, color, fmt, val); 479 else 480 n += fprintf(out, fmt, val); 481 fprintf(out, " %-*s", METRIC_LEN - n - 1, unit); 482 } 483 484 static void new_line_csv(struct perf_stat_config *config, void *ctx) 485 { 486 struct outstate *os = ctx; 487 int i; 488 489 __new_line_std_csv(config, os); 490 for (i = 0; i < os->csv_col_pad; i++) 491 fputs(config->csv_sep, os->fh); 492 } 493 494 static void print_metric_csv(struct perf_stat_config *config __maybe_unused, 495 void *ctx, 496 enum metric_threshold_classify thresh __maybe_unused, 497 const char *fmt, const char *unit, double val) 498 { 499 struct outstate *os = ctx; 500 FILE *out = os->fh; 501 char buf[64], *vals, *ends; 502 503 if (unit == NULL || fmt == NULL) { 504 fprintf(out, "%s%s", config->csv_sep, config->csv_sep); 505 return; 506 } 507 snprintf(buf, sizeof(buf), fmt, val); 508 ends = vals = skip_spaces(buf); 509 while (isdigit(*ends) || *ends == '.') 510 ends++; 511 *ends = 0; 512 fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, skip_spaces(unit)); 513 } 514 515 static void print_metric_json(struct perf_stat_config *config __maybe_unused, 516 void *ctx, 517 enum metric_threshold_classify thresh, 518 const char *fmt __maybe_unused, 519 const char *unit, double val) 520 { 521 struct outstate *os = ctx; 522 FILE *out = os->fh; 523 524 if (unit) { 525 json_out(os, "\"metric-value\" : \"%f\", \"metric-unit\" : \"%s\"", val, unit); 526 if (thresh != METRIC_THRESHOLD_UNKNOWN) { 527 json_out(os, "\"metric-threshold\" : \"%s\"", 528 metric_threshold_classify__str(thresh)); 529 } 530 } 531 if (!config->metric_only) 532 fprintf(out, "}"); 533 } 534 535 static void new_line_json(struct perf_stat_config *config, void *ctx) 536 { 537 struct outstate *os = ctx; 538 539 fputs("\n{", os->fh); 540 os->first = true; 541 if (config->interval) 542 json_out(os, "%s", os->timestamp); 543 544 aggr_printout(config, os, os->evsel, os->id, os->aggr_nr); 545 } 546 547 static void print_metricgroup_header_json(struct perf_stat_config *config, 548 void *ctx, 549 const char *metricgroup_name) 550 { 551 if (!metricgroup_name) 552 return; 553 554 json_out((struct outstate *) ctx, "\"metricgroup\" : \"%s\"}", metricgroup_name); 555 new_line_json(config, ctx); 556 } 557 558 static void print_metricgroup_header_csv(struct perf_stat_config *config, 559 void *ctx, 560 const char *metricgroup_name) 561 { 562 struct outstate *os = ctx; 563 int i; 564 565 if (!metricgroup_name) { 566 /* Leave space for running and enabling */ 567 for (i = 0; i < os->csv_col_pad - 2; i++) 568 fputs(config->csv_sep, os->fh); 569 return; 570 } 571 572 for (i = 0; i < os->csv_col_pad; i++) 573 fputs(config->csv_sep, os->fh); 574 fprintf(config->output, "%s", metricgroup_name); 575 new_line_csv(config, ctx); 576 } 577 578 static void print_metricgroup_header_std(struct perf_stat_config *config, 579 void *ctx, 580 const char *metricgroup_name) 581 { 582 struct outstate *os = ctx; 583 int n; 584 585 if (!metricgroup_name) { 586 __new_line_std(config, os); 587 return; 588 } 589 590 n = fprintf(config->output, " %*s", EVNAME_LEN, metricgroup_name); 591 592 fprintf(config->output, "%*s", MGROUP_LEN + config->unit_width + 2 - n, ""); 593 } 594 595 static void print_metric_only(struct perf_stat_config *config, 596 void *ctx, enum metric_threshold_classify thresh, 597 const char *fmt, const char *unit, double val) 598 { 599 struct outstate *os = ctx; 600 FILE *out = os->fh; 601 char str[1024]; 602 unsigned mlen = config->metric_only_len; 603 const char *color = metric_threshold_classify__color(thresh); 604 605 if (!unit) 606 unit = ""; 607 if (mlen < strlen(unit)) 608 mlen = strlen(unit) + 1; 609 610 if (color) 611 mlen += strlen(color) + sizeof(PERF_COLOR_RESET) - 1; 612 613 color_snprintf(str, sizeof(str), color ?: "", fmt ?: "", val); 614 fprintf(out, "%*s ", mlen, str); 615 os->first = false; 616 } 617 618 static void print_metric_only_csv(struct perf_stat_config *config __maybe_unused, 619 void *ctx, 620 enum metric_threshold_classify thresh __maybe_unused, 621 const char *fmt, 622 const char *unit __maybe_unused, double val) 623 { 624 struct outstate *os = ctx; 625 FILE *out = os->fh; 626 char buf[64], *vals, *ends; 627 628 if (!unit) 629 return; 630 631 snprintf(buf, sizeof(buf), fmt ?: "", val); 632 ends = vals = skip_spaces(buf); 633 while (isdigit(*ends) || *ends == '.') 634 ends++; 635 *ends = 0; 636 fprintf(out, "%s%s", vals, config->csv_sep); 637 os->first = false; 638 } 639 640 static void print_metric_only_json(struct perf_stat_config *config __maybe_unused, 641 void *ctx, 642 enum metric_threshold_classify thresh __maybe_unused, 643 const char *fmt, 644 const char *unit, double val) 645 { 646 struct outstate *os = ctx; 647 char buf[64], *ends; 648 const char *vals; 649 650 if (!unit || !unit[0]) 651 return; 652 snprintf(buf, sizeof(buf), fmt ?: "", val); 653 vals = ends = skip_spaces(buf); 654 while (isdigit(*ends) || *ends == '.') 655 ends++; 656 *ends = 0; 657 if (!vals[0]) 658 vals = "none"; 659 json_out(os, "\"%s\" : \"%s\"", unit, vals); 660 } 661 662 static void print_metric_header(struct perf_stat_config *config, 663 void *ctx, 664 enum metric_threshold_classify thresh __maybe_unused, 665 const char *fmt __maybe_unused, 666 const char *unit, double val __maybe_unused) 667 { 668 struct outstate *os = ctx; 669 670 /* In case of iostat, print metric header for first root port only */ 671 if (config->iostat_run && 672 os->evsel->priv != os->evsel->evlist->selected->priv) 673 return; 674 675 if (os->evsel->cgrp != os->cgrp) 676 return; 677 678 if (!unit) 679 return; 680 681 if (config->json_output) 682 return; 683 else if (config->csv_output) 684 fprintf(os->fh, "%s%s", unit, config->csv_sep); 685 else 686 fprintf(os->fh, "%*s ", config->metric_only_len, unit); 687 } 688 689 static void print_counter_value_std(struct perf_stat_config *config, 690 struct evsel *evsel, double avg, bool ok) 691 { 692 FILE *output = config->output; 693 double sc = evsel->scale; 694 const char *fmt; 695 const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED; 696 697 if (config->big_num) 698 fmt = floor(sc) != sc ? "%'*.2f " : "%'*.0f "; 699 else 700 fmt = floor(sc) != sc ? "%*.2f " : "%*.0f "; 701 702 if (ok) 703 fprintf(output, fmt, COUNTS_LEN, avg); 704 else 705 fprintf(output, "%*s ", COUNTS_LEN, bad_count); 706 707 if (evsel->unit) 708 fprintf(output, "%-*s ", config->unit_width, evsel->unit); 709 710 fprintf(output, "%-*s", EVNAME_LEN, evsel__name(evsel)); 711 } 712 713 static void print_counter_value_csv(struct perf_stat_config *config, 714 struct evsel *evsel, double avg, bool ok) 715 { 716 FILE *output = config->output; 717 double sc = evsel->scale; 718 const char *sep = config->csv_sep; 719 const char *fmt = floor(sc) != sc ? "%.2f%s" : "%.0f%s"; 720 const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED; 721 722 if (ok) 723 fprintf(output, fmt, avg, sep); 724 else 725 fprintf(output, "%s%s", bad_count, sep); 726 727 if (evsel->unit) 728 fprintf(output, "%s%s", evsel->unit, sep); 729 730 fprintf(output, "%s", evsel__name(evsel)); 731 } 732 733 static void print_counter_value_json(struct outstate *os, 734 struct evsel *evsel, double avg, bool ok) 735 { 736 const char *bad_count = evsel->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED; 737 738 if (ok) 739 json_out(os, "\"counter-value\" : \"%f\"", avg); 740 else 741 json_out(os, "\"counter-value\" : \"%s\"", bad_count); 742 743 if (evsel->unit) 744 json_out(os, "\"unit\" : \"%s\"", evsel->unit); 745 746 json_out(os, "\"event\" : \"%s\"", evsel__name(evsel)); 747 } 748 749 static void print_counter_value(struct perf_stat_config *config, struct outstate *os, 750 struct evsel *evsel, double avg, bool ok) 751 { 752 if (config->json_output) 753 print_counter_value_json(os, evsel, avg, ok); 754 else if (config->csv_output) 755 print_counter_value_csv(config, evsel, avg, ok); 756 else 757 print_counter_value_std(config, evsel, avg, ok); 758 } 759 760 static void abs_printout(struct perf_stat_config *config, 761 struct outstate *os, 762 struct aggr_cpu_id id, int aggr_nr, 763 struct evsel *evsel, double avg, bool ok) 764 { 765 aggr_printout(config, os, evsel, id, aggr_nr); 766 print_counter_value(config, os, evsel, avg, ok); 767 print_cgroup(config, os, evsel->cgrp); 768 } 769 770 static bool evlist__has_hybrid_pmus(struct evlist *evlist) 771 { 772 struct evsel *evsel; 773 struct perf_pmu *last_core_pmu = NULL; 774 775 if (perf_pmus__num_core_pmus() == 1) 776 return false; 777 778 evlist__for_each_entry(evlist, evsel) { 779 if (evsel->core.is_pmu_core) { 780 struct perf_pmu *pmu = evsel__find_pmu(evsel); 781 782 if (pmu == last_core_pmu) 783 continue; 784 785 if (last_core_pmu == NULL) { 786 last_core_pmu = pmu; 787 continue; 788 } 789 /* A distinct core PMU. */ 790 return true; 791 } 792 } 793 794 return false; 795 } 796 797 static void printout(struct perf_stat_config *config, struct outstate *os, 798 double uval, u64 run, u64 ena, double noise, int aggr_idx) 799 { 800 struct perf_stat_output_ctx out; 801 print_metric_t pm; 802 new_line_t nl; 803 print_metricgroup_header_t pmh; 804 bool ok = true; 805 struct evsel *counter = os->evsel; 806 807 if (config->csv_output) { 808 pm = config->metric_only ? print_metric_only_csv : print_metric_csv; 809 nl = config->metric_only ? NULL : new_line_csv; 810 pmh = print_metricgroup_header_csv; 811 os->csv_col_pad = 4 + (counter->cgrp ? 1 : 0); 812 } else if (config->json_output) { 813 pm = config->metric_only ? print_metric_only_json : print_metric_json; 814 nl = config->metric_only ? NULL : new_line_json; 815 pmh = print_metricgroup_header_json; 816 } else { 817 pm = config->metric_only ? print_metric_only : print_metric_std; 818 nl = config->metric_only ? NULL : new_line_std; 819 pmh = print_metricgroup_header_std; 820 } 821 822 if (run == 0 || ena == 0 || counter->counts->scaled == -1) { 823 ok = false; 824 825 if (counter->supported) { 826 if (!evlist__has_hybrid_pmus(counter->evlist)) { 827 config->print_free_counters_hint = 1; 828 } 829 } 830 } 831 832 out.print_metric = pm; 833 out.new_line = nl; 834 out.print_metricgroup_header = pmh; 835 out.ctx = os; 836 out.force_header = false; 837 838 if (!config->metric_only && (!counter->default_metricgroup || counter->default_show_events)) { 839 abs_printout(config, os, os->id, os->aggr_nr, counter, uval, ok); 840 841 print_noise(config, os, counter, noise, /*before_metric=*/true); 842 print_running(config, os, run, ena, /*before_metric=*/true); 843 } 844 845 if (!config->metric_only && counter->default_metricgroup && 846 !counter->default_show_events) { 847 void *from = NULL; 848 849 aggr_printout(config, os, os->evsel, os->id, os->aggr_nr); 850 /* Print out all the metricgroup with the same metric event. */ 851 do { 852 int num = 0; 853 854 /* Print out the new line for the next new metricgroup. */ 855 if (from) { 856 if (config->json_output) 857 new_line_json(config, (void *)os); 858 else 859 __new_line_std_csv(config, os); 860 } 861 862 print_noise(config, os, counter, noise, 863 /*before_metric=*/true); 864 print_running(config, os, run, ena, 865 /*before_metric=*/true); 866 from = perf_stat__print_shadow_stats_metricgroup( 867 config, counter, aggr_idx, &num, from, &out); 868 } while (from != NULL); 869 } else { 870 perf_stat__print_shadow_stats(config, counter, aggr_idx, &out); 871 } 872 873 if (!config->metric_only) { 874 print_noise(config, os, counter, noise, /*before_metric=*/false); 875 print_running(config, os, run, ena, /*before_metric=*/false); 876 } 877 } 878 879 /** 880 * should_skip_zero_count() - Check if the event should print 0 values. 881 * @config: The perf stat configuration (including aggregation mode). 882 * @counter: The evsel with its associated cpumap. 883 * @id: The aggregation id that is being queried. 884 * 885 * Due to mismatch between the event cpumap or thread-map and the 886 * aggregation mode, sometimes it'd iterate the counter with the map 887 * which does not contain any values. 888 * 889 * For example, uncore events have dedicated CPUs to manage them, 890 * result for other CPUs should be zero and skipped. 891 * 892 * Return: %true if the value should NOT be printed, %false if the value 893 * needs to be printed like "<not counted>" or "<not supported>". 894 */ 895 static bool should_skip_zero_counter(struct perf_stat_config *config, 896 struct evsel *counter, 897 const struct aggr_cpu_id *id) 898 { 899 struct perf_cpu cpu; 900 int idx; 901 902 /* 903 * Skip unsupported default events when not verbose. (default events 904 * are all marked 'skippable'). 905 */ 906 if (verbose == 0 && counter->skippable && !counter->supported) 907 return true; 908 909 /* Metric only counts won't be displayed but the metric wants to be computed. */ 910 if (config->metric_only) 911 return false; 912 /* 913 * Skip value 0 when enabling --per-thread globally, 914 * otherwise it will have too many 0 output. 915 */ 916 if (config->aggr_mode == AGGR_THREAD && config->system_wide) 917 return true; 918 919 /* 920 * In per-thread mode the aggr_map and aggr_get_id functions may be 921 * NULL, assume all 0 values should be output in that case. 922 */ 923 if (!config->aggr_map || !config->aggr_get_id) 924 return false; 925 926 /* 927 * Tool events may be gathered on all logical CPUs, for example 928 * system_time, but for many the first index is the only one used, for 929 * example num_cores. Don't skip for the first index. 930 */ 931 if (evsel__is_tool(counter)) { 932 struct aggr_cpu_id own_id = 933 config->aggr_get_id(config, (struct perf_cpu){ .cpu = 0 }); 934 935 return !aggr_cpu_id__equal(id, &own_id); 936 } 937 /* 938 * Skip value 0 when the counter's cpumask doesn't match the given aggr 939 * id. 940 */ 941 942 perf_cpu_map__for_each_cpu(cpu, idx, counter->core.cpus) { 943 struct aggr_cpu_id own_id = config->aggr_get_id(config, cpu); 944 945 if (aggr_cpu_id__equal(id, &own_id)) 946 return false; 947 } 948 return true; 949 } 950 951 static void print_counter_aggrdata(struct perf_stat_config *config, 952 struct evsel *counter, int aggr_idx, 953 struct outstate *os) 954 { 955 FILE *output = config->output; 956 u64 ena, run, val; 957 double uval; 958 struct perf_stat_evsel *ps = counter->stats; 959 struct perf_stat_aggr *aggr = &ps->aggr[aggr_idx]; 960 struct aggr_cpu_id id = config->aggr_map->map[aggr_idx]; 961 double avg = aggr->counts.val; 962 bool metric_only = config->metric_only; 963 964 os->id = id; 965 os->aggr_nr = aggr->nr; 966 os->evsel = counter; 967 968 /* Skip already merged uncore/hybrid events */ 969 if (config->aggr_mode != AGGR_NONE) { 970 if (evsel__is_hybrid(counter)) { 971 if (config->hybrid_merge && counter->first_wildcard_match != NULL) 972 return; 973 } else { 974 if (counter->first_wildcard_match != NULL) 975 return; 976 } 977 } 978 979 val = aggr->counts.val; 980 ena = aggr->counts.ena; 981 run = aggr->counts.run; 982 983 if (perf_stat__skip_metric_event(counter)) 984 return; 985 986 if (val == 0 && should_skip_zero_counter(config, counter, &id)) 987 return; 988 989 if (!metric_only) { 990 if (config->json_output) { 991 os->first = true; 992 fputc('{', output); 993 } 994 if (config->interval) { 995 if (config->json_output) 996 json_out(os, "%s", os->timestamp); 997 else 998 fprintf(output, "%s", os->timestamp); 999 } else if (config->summary && config->csv_output && 1000 !config->no_csv_summary) 1001 fprintf(output, "%s%s", "summary", config->csv_sep); 1002 } 1003 1004 uval = val * counter->scale; 1005 1006 printout(config, os, uval, run, ena, avg, aggr_idx); 1007 1008 if (!metric_only) 1009 fputc('\n', output); 1010 } 1011 1012 static void print_metric_begin(struct perf_stat_config *config, 1013 struct evlist *evlist, 1014 struct outstate *os, int aggr_idx) 1015 { 1016 struct perf_stat_aggr *aggr; 1017 struct aggr_cpu_id id; 1018 struct evsel *evsel; 1019 1020 os->first = true; 1021 if (!config->metric_only) 1022 return; 1023 1024 if (config->json_output) 1025 fputc('{', config->output); 1026 1027 if (config->interval) { 1028 if (config->json_output) 1029 json_out(os, "%s", os->timestamp); 1030 else 1031 fprintf(config->output, "%s", os->timestamp); 1032 } 1033 evsel = evlist__first(evlist); 1034 id = config->aggr_map->map[aggr_idx]; 1035 aggr = &evsel->stats->aggr[aggr_idx]; 1036 aggr_printout(config, os, evsel, id, aggr->nr); 1037 1038 print_cgroup(config, os, os->cgrp ? : evsel->cgrp); 1039 } 1040 1041 static void print_metric_end(struct perf_stat_config *config, struct outstate *os) 1042 { 1043 FILE *output = config->output; 1044 1045 if (!config->metric_only) 1046 return; 1047 1048 if (config->json_output) { 1049 if (os->first) 1050 fputs("\"metric-value\" : \"none\"", output); 1051 fputc('}', output); 1052 } 1053 fputc('\n', output); 1054 } 1055 1056 static void print_aggr(struct perf_stat_config *config, 1057 struct evlist *evlist, 1058 struct outstate *os) 1059 { 1060 struct evsel *counter; 1061 int aggr_idx; 1062 1063 if (!config->aggr_map || !config->aggr_get_id) 1064 return; 1065 1066 /* 1067 * With metric_only everything is on a single line. 1068 * Without each counter has its own line. 1069 */ 1070 cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) { 1071 print_metric_begin(config, evlist, os, aggr_idx); 1072 1073 evlist__for_each_entry(evlist, counter) { 1074 print_counter_aggrdata(config, counter, aggr_idx, os); 1075 } 1076 print_metric_end(config, os); 1077 } 1078 } 1079 1080 static void print_aggr_cgroup(struct perf_stat_config *config, 1081 struct evlist *evlist, 1082 struct outstate *os) 1083 { 1084 struct evsel *counter, *evsel; 1085 int aggr_idx; 1086 1087 if (!config->aggr_map || !config->aggr_get_id) 1088 return; 1089 1090 evlist__for_each_entry(evlist, evsel) { 1091 if (os->cgrp == evsel->cgrp) 1092 continue; 1093 1094 os->cgrp = evsel->cgrp; 1095 1096 cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) { 1097 print_metric_begin(config, evlist, os, aggr_idx); 1098 1099 evlist__for_each_entry(evlist, counter) { 1100 if (counter->cgrp != os->cgrp) 1101 continue; 1102 1103 print_counter_aggrdata(config, counter, aggr_idx, os); 1104 } 1105 print_metric_end(config, os); 1106 } 1107 } 1108 } 1109 1110 static void print_counter(struct perf_stat_config *config, 1111 struct evsel *counter, struct outstate *os) 1112 { 1113 int aggr_idx; 1114 1115 /* AGGR_THREAD doesn't have config->aggr_get_id */ 1116 if (!config->aggr_map) 1117 return; 1118 1119 cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) { 1120 print_counter_aggrdata(config, counter, aggr_idx, os); 1121 } 1122 } 1123 1124 static void print_no_aggr_metric(struct perf_stat_config *config, 1125 struct evlist *evlist, 1126 struct outstate *os) 1127 { 1128 int all_idx; 1129 struct perf_cpu cpu; 1130 1131 perf_cpu_map__for_each_cpu(cpu, all_idx, evlist->core.user_requested_cpus) { 1132 struct evsel *counter; 1133 bool first = true; 1134 1135 evlist__for_each_entry(evlist, counter) { 1136 u64 ena, run, val; 1137 double uval; 1138 struct perf_stat_evsel *ps = counter->stats; 1139 int aggr_idx = 0; 1140 1141 if (!perf_cpu_map__has(evsel__cpus(counter), cpu)) 1142 continue; 1143 1144 cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) { 1145 if (config->aggr_map->map[aggr_idx].cpu.cpu == cpu.cpu) 1146 break; 1147 } 1148 1149 os->evsel = counter; 1150 os->id = aggr_cpu_id__cpu(cpu, /*data=*/NULL); 1151 if (first) { 1152 print_metric_begin(config, evlist, os, aggr_idx); 1153 first = false; 1154 } 1155 val = ps->aggr[aggr_idx].counts.val; 1156 ena = ps->aggr[aggr_idx].counts.ena; 1157 run = ps->aggr[aggr_idx].counts.run; 1158 1159 uval = val * counter->scale; 1160 printout(config, os, uval, run, ena, 1.0, aggr_idx); 1161 } 1162 if (!first) 1163 print_metric_end(config, os); 1164 } 1165 } 1166 1167 static void print_metric_headers_std(struct perf_stat_config *config, 1168 bool no_indent) 1169 { 1170 fputc(' ', config->output); 1171 1172 if (!no_indent) { 1173 int len = aggr_header_lens[config->aggr_mode]; 1174 1175 if (nr_cgroups || config->cgroup_list) 1176 len += CGROUP_LEN + 1; 1177 1178 fprintf(config->output, "%*s", len, ""); 1179 } 1180 } 1181 1182 static void print_metric_headers_csv(struct perf_stat_config *config, 1183 bool no_indent __maybe_unused) 1184 { 1185 const char *p; 1186 1187 if (config->interval) 1188 fprintf(config->output, "time%s", config->csv_sep); 1189 if (config->iostat_run) 1190 return; 1191 1192 p = aggr_header_csv[config->aggr_mode]; 1193 while (*p) { 1194 if (*p == ',') 1195 fputs(config->csv_sep, config->output); 1196 else 1197 fputc(*p, config->output); 1198 p++; 1199 } 1200 } 1201 1202 static void print_metric_headers_json(struct perf_stat_config *config __maybe_unused, 1203 bool no_indent __maybe_unused) 1204 { 1205 } 1206 1207 static void print_metric_headers(struct perf_stat_config *config, 1208 struct evlist *evlist, bool no_indent) 1209 { 1210 struct evsel *counter; 1211 struct outstate os = { 1212 .fh = config->output 1213 }; 1214 struct perf_stat_output_ctx out = { 1215 .ctx = &os, 1216 .print_metric = print_metric_header, 1217 .new_line = NULL, 1218 .force_header = true, 1219 }; 1220 1221 if (config->json_output) 1222 print_metric_headers_json(config, no_indent); 1223 else if (config->csv_output) 1224 print_metric_headers_csv(config, no_indent); 1225 else 1226 print_metric_headers_std(config, no_indent); 1227 1228 if (config->iostat_run) 1229 iostat_print_header_prefix(config); 1230 1231 if (config->cgroup_list) 1232 os.cgrp = evlist__first(evlist)->cgrp; 1233 1234 /* Print metrics headers only */ 1235 evlist__for_each_entry(evlist, counter) { 1236 if (!config->iostat_run && 1237 config->aggr_mode != AGGR_NONE && counter->metric_leader != counter) 1238 continue; 1239 1240 os.evsel = counter; 1241 1242 perf_stat__print_shadow_stats(config, counter, /*aggr_idx=*/0, &out); 1243 } 1244 1245 if (!config->json_output) 1246 fputc('\n', config->output); 1247 } 1248 1249 static void prepare_timestamp(struct perf_stat_config *config, 1250 struct outstate *os, struct timespec *ts) 1251 { 1252 if (config->iostat_run) 1253 return; 1254 1255 if (config->json_output) 1256 scnprintf(os->timestamp, sizeof(os->timestamp), "\"interval\" : %lu.%09lu", 1257 (unsigned long) ts->tv_sec, ts->tv_nsec); 1258 else if (config->csv_output) 1259 scnprintf(os->timestamp, sizeof(os->timestamp), "%lu.%09lu%s", 1260 (unsigned long) ts->tv_sec, ts->tv_nsec, config->csv_sep); 1261 else 1262 scnprintf(os->timestamp, sizeof(os->timestamp), "%6lu.%09lu ", 1263 (unsigned long) ts->tv_sec, ts->tv_nsec); 1264 } 1265 1266 static void print_header_interval_std(struct perf_stat_config *config, 1267 struct target *_target __maybe_unused, 1268 struct evlist *evlist, 1269 int argc __maybe_unused, 1270 const char **argv __maybe_unused) 1271 { 1272 FILE *output = config->output; 1273 1274 switch (config->aggr_mode) { 1275 case AGGR_NODE: 1276 case AGGR_SOCKET: 1277 case AGGR_DIE: 1278 case AGGR_CLUSTER: 1279 case AGGR_CACHE: 1280 case AGGR_CORE: 1281 fprintf(output, "#%*s %-*s ctrs", 1282 INTERVAL_LEN - 1, "time", 1283 aggr_header_lens[config->aggr_mode], 1284 aggr_header_std[config->aggr_mode]); 1285 break; 1286 case AGGR_NONE: 1287 fprintf(output, "#%*s %-*s", 1288 INTERVAL_LEN - 1, "time", 1289 aggr_header_lens[config->aggr_mode], 1290 aggr_header_std[config->aggr_mode]); 1291 break; 1292 case AGGR_THREAD: 1293 fprintf(output, "#%*s %*s-%-*s", 1294 INTERVAL_LEN - 1, "time", 1295 COMM_LEN, "comm", PID_LEN, "pid"); 1296 break; 1297 case AGGR_GLOBAL: 1298 default: 1299 if (!config->iostat_run) 1300 fprintf(output, "#%*s", 1301 INTERVAL_LEN - 1, "time"); 1302 case AGGR_UNSET: 1303 case AGGR_MAX: 1304 break; 1305 } 1306 1307 if (config->metric_only) 1308 print_metric_headers(config, evlist, true); 1309 else 1310 fprintf(output, " %*s %*s events\n", 1311 COUNTS_LEN, "counts", config->unit_width, "unit"); 1312 } 1313 1314 static void print_header_std(struct perf_stat_config *config, 1315 struct target *_target, struct evlist *evlist, 1316 int argc, const char **argv) 1317 { 1318 FILE *output = config->output; 1319 int i; 1320 1321 fprintf(output, "\n"); 1322 fprintf(output, " Performance counter stats for "); 1323 if (_target->bpf_str) 1324 fprintf(output, "\'BPF program(s) %s", _target->bpf_str); 1325 else if (_target->system_wide) 1326 fprintf(output, "\'system wide"); 1327 else if (_target->cpu_list) 1328 fprintf(output, "\'CPU(s) %s", _target->cpu_list); 1329 else if (!target__has_task(_target)) { 1330 fprintf(output, "\'%s", argv ? argv[0] : "pipe"); 1331 for (i = 1; argv && (i < argc); i++) 1332 fprintf(output, " %s", argv[i]); 1333 } else if (_target->pid) 1334 fprintf(output, "process id \'%s", _target->pid); 1335 else 1336 fprintf(output, "thread id \'%s", _target->tid); 1337 1338 fprintf(output, "\'"); 1339 if (config->run_count > 1) 1340 fprintf(output, " (%d runs)", config->run_count); 1341 fprintf(output, ":\n\n"); 1342 1343 if (config->metric_only) 1344 print_metric_headers(config, evlist, false); 1345 } 1346 1347 static void print_header_csv(struct perf_stat_config *config, 1348 struct target *_target __maybe_unused, 1349 struct evlist *evlist, 1350 int argc __maybe_unused, 1351 const char **argv __maybe_unused) 1352 { 1353 if (config->metric_only) 1354 print_metric_headers(config, evlist, true); 1355 } 1356 static void print_header_json(struct perf_stat_config *config, 1357 struct target *_target __maybe_unused, 1358 struct evlist *evlist, 1359 int argc __maybe_unused, 1360 const char **argv __maybe_unused) 1361 { 1362 if (config->metric_only) 1363 print_metric_headers(config, evlist, true); 1364 } 1365 1366 static void print_header(struct perf_stat_config *config, 1367 struct target *_target, 1368 struct evlist *evlist, 1369 int argc, const char **argv) 1370 { 1371 static int num_print_iv; 1372 1373 fflush(stdout); 1374 1375 if (config->interval_clear) 1376 puts(CONSOLE_CLEAR); 1377 1378 if (num_print_iv == 0 || config->interval_clear) { 1379 if (config->json_output) 1380 print_header_json(config, _target, evlist, argc, argv); 1381 else if (config->csv_output) 1382 print_header_csv(config, _target, evlist, argc, argv); 1383 else if (config->interval) 1384 print_header_interval_std(config, _target, evlist, argc, argv); 1385 else 1386 print_header_std(config, _target, evlist, argc, argv); 1387 } 1388 1389 if (num_print_iv++ == 25) 1390 num_print_iv = 0; 1391 } 1392 1393 static void print_table(struct perf_stat_config *config, FILE *output, double avg) 1394 { 1395 char tmp[64]; 1396 int idx, indent = 0; 1397 1398 scnprintf(tmp, 64, " %17.9f", avg); 1399 while (tmp[indent] == ' ') 1400 indent++; 1401 1402 fprintf(output, "%*s# Table of individual measurements:\n", indent, ""); 1403 1404 for (idx = 0; idx < config->run_count; idx++) { 1405 double run = (double) config->walltime_run[idx] / NSEC_PER_SEC; 1406 int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5); 1407 1408 fprintf(output, " %17.9f (%+.9f) ", run, run - avg); 1409 1410 for (h = 0; h < n; h++) 1411 fprintf(output, "#"); 1412 1413 fprintf(output, "\n"); 1414 } 1415 1416 fprintf(output, "\n%*s# Final result:\n", indent, ""); 1417 } 1418 1419 static double timeval2double(struct timeval *t) 1420 { 1421 return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC; 1422 } 1423 1424 static void print_footer(struct perf_stat_config *config) 1425 { 1426 double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC; 1427 FILE *output = config->output; 1428 1429 if (config->interval || config->csv_output || config->json_output) 1430 return; 1431 1432 if (!config->null_run) 1433 fprintf(output, "\n"); 1434 1435 if (config->run_count == 1) { 1436 fprintf(output, " %17.9f seconds time elapsed", avg); 1437 1438 if (config->ru_display) { 1439 double ru_utime = timeval2double(&config->ru_data.ru_utime); 1440 double ru_stime = timeval2double(&config->ru_data.ru_stime); 1441 1442 fprintf(output, "\n\n"); 1443 fprintf(output, " %17.9f seconds user\n", ru_utime); 1444 fprintf(output, " %17.9f seconds sys\n", ru_stime); 1445 } 1446 } else { 1447 double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC; 1448 1449 if (config->walltime_run_table) 1450 print_table(config, output, avg); 1451 1452 fprintf(output, " %17.9f +- %.9f seconds time elapsed", avg, sd); 1453 1454 print_noise_pct(config, NULL, sd, avg, /*before_metric=*/false); 1455 } 1456 fprintf(output, "\n\n"); 1457 1458 if (config->print_free_counters_hint && sysctl__nmi_watchdog_enabled()) 1459 fprintf(output, 1460 "Some events weren't counted. Try disabling the NMI watchdog:\n" 1461 " echo 0 > /proc/sys/kernel/nmi_watchdog\n" 1462 " perf stat ...\n" 1463 " echo 1 > /proc/sys/kernel/nmi_watchdog\n"); 1464 } 1465 1466 static void print_percore(struct perf_stat_config *config, 1467 struct evsel *counter, struct outstate *os) 1468 { 1469 bool metric_only = config->metric_only; 1470 FILE *output = config->output; 1471 struct cpu_aggr_map *core_map; 1472 int aggr_idx, core_map_len = 0; 1473 1474 if (!config->aggr_map || !config->aggr_get_id) 1475 return; 1476 1477 if (config->percore_show_thread) 1478 return print_counter(config, counter, os); 1479 1480 /* 1481 * core_map will hold the aggr_cpu_id for the cores that have been 1482 * printed so that each core is printed just once. 1483 */ 1484 core_map = cpu_aggr_map__empty_new(config->aggr_map->nr); 1485 if (core_map == NULL) { 1486 fprintf(output, "Cannot allocate per-core aggr map for display\n"); 1487 return; 1488 } 1489 1490 cpu_aggr_map__for_each_idx(aggr_idx, config->aggr_map) { 1491 struct perf_cpu curr_cpu = config->aggr_map->map[aggr_idx].cpu; 1492 struct aggr_cpu_id core_id = aggr_cpu_id__core(curr_cpu, NULL); 1493 bool found = false; 1494 1495 for (int i = 0; i < core_map_len; i++) { 1496 if (aggr_cpu_id__equal(&core_map->map[i], &core_id)) { 1497 found = true; 1498 break; 1499 } 1500 } 1501 if (found) 1502 continue; 1503 1504 print_counter_aggrdata(config, counter, aggr_idx, os); 1505 1506 core_map->map[core_map_len++] = core_id; 1507 } 1508 free(core_map); 1509 1510 if (metric_only) 1511 fputc('\n', output); 1512 } 1513 1514 static void print_cgroup_counter(struct perf_stat_config *config, struct evlist *evlist, 1515 struct outstate *os) 1516 { 1517 struct evsel *counter; 1518 1519 evlist__for_each_entry(evlist, counter) { 1520 if (os->cgrp != counter->cgrp) { 1521 if (os->cgrp != NULL) 1522 print_metric_end(config, os); 1523 1524 os->cgrp = counter->cgrp; 1525 print_metric_begin(config, evlist, os, /*aggr_idx=*/0); 1526 } 1527 1528 print_counter(config, counter, os); 1529 } 1530 if (os->cgrp) 1531 print_metric_end(config, os); 1532 } 1533 1534 void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config, 1535 struct target *_target, struct timespec *ts, 1536 int argc, const char **argv) 1537 { 1538 bool metric_only = config->metric_only; 1539 struct evsel *counter; 1540 struct outstate os = { 1541 .fh = config->output, 1542 .first = true, 1543 }; 1544 1545 evlist__uniquify_evsel_names(evlist, config); 1546 1547 if (config->iostat_run) 1548 evlist->selected = evlist__first(evlist); 1549 1550 if (config->interval) 1551 prepare_timestamp(config, &os, ts); 1552 1553 print_header(config, _target, evlist, argc, argv); 1554 1555 switch (config->aggr_mode) { 1556 case AGGR_CORE: 1557 case AGGR_CACHE: 1558 case AGGR_CLUSTER: 1559 case AGGR_DIE: 1560 case AGGR_SOCKET: 1561 case AGGR_NODE: 1562 if (config->cgroup_list) 1563 print_aggr_cgroup(config, evlist, &os); 1564 else 1565 print_aggr(config, evlist, &os); 1566 break; 1567 case AGGR_THREAD: 1568 case AGGR_GLOBAL: 1569 if (config->iostat_run) { 1570 iostat_print_counters(evlist, config, ts, os.timestamp, 1571 (iostat_print_counter_t)print_counter, &os); 1572 } else if (config->cgroup_list) { 1573 print_cgroup_counter(config, evlist, &os); 1574 } else { 1575 print_metric_begin(config, evlist, &os, /*aggr_idx=*/0); 1576 evlist__for_each_entry(evlist, counter) { 1577 print_counter(config, counter, &os); 1578 } 1579 print_metric_end(config, &os); 1580 } 1581 break; 1582 case AGGR_NONE: 1583 if (metric_only) 1584 print_no_aggr_metric(config, evlist, &os); 1585 else { 1586 evlist__for_each_entry(evlist, counter) { 1587 if (counter->percore) 1588 print_percore(config, counter, &os); 1589 else 1590 print_counter(config, counter, &os); 1591 } 1592 } 1593 break; 1594 case AGGR_MAX: 1595 case AGGR_UNSET: 1596 default: 1597 break; 1598 } 1599 1600 print_footer(config); 1601 1602 fflush(config->output); 1603 } 1604