tools/perf/util/stat-shadow.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <math.h>
   3 #include <stdio.h>
   4 #include "evsel.h"
   5 #include "stat.h"
   6 #include "color.h"
   7 #include "debug.h"
   8 #include "pmu.h"
   9 #include "rblist.h"
  10 #include "evlist.h"
  11 #include "expr.h"
  12 #include "metricgroup.h"
  13 #include "cgroup.h"
  14 #include "units.h"
  15 #include <linux/zalloc.h>
  16 #include "iostat.h"
  17
  18 /*
  19  * AGGR_GLOBAL: Use CPU 0
  20  * AGGR_SOCKET: Use first CPU of socket
  21  * AGGR_DIE: Use first CPU of die
  22  * AGGR_CORE: Use first CPU of core
  23  * AGGR_NONE: Use matching CPU
  24  * AGGR_THREAD: Not supported?
  25  */
  26
  27 struct runtime_stat rt_stat;
  28 struct stats walltime_nsecs_stats;
  29 struct rusage_stats ru_stats;
  30
  31 struct saved_value {
  32         struct rb_node rb_node;
  33         struct evsel *evsel;
  34         enum stat_type type;
  35         int ctx;
  36         int cpu_map_idx;
  37         struct cgroup *cgrp;
  38         struct runtime_stat *stat;
  39         struct stats stats;
  40         u64 metric_total;
  41         int metric_other;
  42 };
  43
  44 static int saved_value_cmp(struct rb_node *rb_node, const void *entry)
  45 {
  46         struct saved_value *a = container_of(rb_node,
  47                                              struct saved_value,
  48                                              rb_node);
  49         const struct saved_value *b = entry;
  50
  51         if (a->cpu_map_idx != b->cpu_map_idx)
  52                 return a->cpu_map_idx - b->cpu_map_idx;
  53
  54         /*
  55          * Previously the rbtree was used to link generic metrics.
  56          * The keys were evsel/cpu. Now the rbtree is extended to support
  57          * per-thread shadow stats. For shadow stats case, the keys
  58          * are cpu/type/ctx/stat (evsel is NULL). For generic metrics
  59          * case, the keys are still evsel/cpu (type/ctx/stat are 0 or NULL).
  60          */
  61         if (a->type != b->type)
  62                 return a->type - b->type;
  63
  64         if (a->ctx != b->ctx)
  65                 return a->ctx - b->ctx;
  66
  67         if (a->cgrp != b->cgrp)
  68                 return (char *)a->cgrp < (char *)b->cgrp ? -1 : +1;
  69
  70         if (a->evsel == NULL && b->evsel == NULL) {
  71                 if (a->stat == b->stat)
  72                         return 0;
  73
  74                 if ((char *)a->stat < (char *)b->stat)
  75                         return -1;
  76
  77                 return 1;
  78         }
  79
  80         if (a->evsel == b->evsel)
  81                 return 0;
  82         if ((char *)a->evsel < (char *)b->evsel)
  83                 return -1;
  84         return +1;
  85 }
  86
  87 static struct rb_node *saved_value_new(struct rblist *rblist __maybe_unused,
  88                                      const void *entry)
  89 {
  90         struct saved_value *nd = malloc(sizeof(struct saved_value));
  91
  92         if (!nd)
  93                 return NULL;
  94         memcpy(nd, entry, sizeof(struct saved_value));
  95         return &nd->rb_node;
  96 }
  97
  98 static void saved_value_delete(struct rblist *rblist __maybe_unused,
  99                                struct rb_node *rb_node)
 100 {
 101         struct saved_value *v;
 102
 103         BUG_ON(!rb_node);
 104         v = container_of(rb_node, struct saved_value, rb_node);
 105         free(v);
 106 }
 107
 108 static struct saved_value *saved_value_lookup(struct evsel *evsel,
 109                                               int cpu_map_idx,
 110                                               bool create,
 111                                               enum stat_type type,
 112                                               int ctx,
 113                                               struct runtime_stat *st,
 114                                               struct cgroup *cgrp)
 115 {
 116         struct rblist *rblist;
 117         struct rb_node *nd;
 118         struct saved_value dm = {
 119                 .cpu_map_idx = cpu_map_idx,
 120                 .evsel = evsel,
 121                 .type = type,
 122                 .ctx = ctx,
 123                 .stat = st,
 124                 .cgrp = cgrp,
 125         };
 126
 127         rblist = &st->value_list;
 128
 129         /* don't use context info for clock events */
 130         if (type == STAT_NSECS)
 131                 dm.ctx = 0;
 132
 133         nd = rblist__find(rblist, &dm);
 134         if (nd)
 135                 return container_of(nd, struct saved_value, rb_node);
 136         if (create) {
 137                 rblist__add_node(rblist, &dm);
 138                 nd = rblist__find(rblist, &dm);
 139                 if (nd)
 140                         return container_of(nd, struct saved_value, rb_node);
 141         }
 142         return NULL;
 143 }
 144
 145 void runtime_stat__init(struct runtime_stat *st)
 146 {
 147         struct rblist *rblist = &st->value_list;
 148
 149         rblist__init(rblist);
 150         rblist->node_cmp = saved_value_cmp;
 151         rblist->node_new = saved_value_new;
 152         rblist->node_delete = saved_value_delete;
 153 }
 154
 155 void runtime_stat__exit(struct runtime_stat *st)
 156 {
 157         rblist__exit(&st->value_list);
 158 }
 159
 160 void perf_stat__init_shadow_stats(void)
 161 {
 162         runtime_stat__init(&rt_stat);
 163 }
 164
 165 static int evsel_context(struct evsel *evsel)
 166 {
 167         int ctx = 0;
 168
 169         if (evsel->core.attr.exclude_kernel)
 170                 ctx |= CTX_BIT_KERNEL;
 171         if (evsel->core.attr.exclude_user)
 172                 ctx |= CTX_BIT_USER;
 173         if (evsel->core.attr.exclude_hv)
 174                 ctx |= CTX_BIT_HV;
 175         if (evsel->core.attr.exclude_host)
 176                 ctx |= CTX_BIT_HOST;
 177         if (evsel->core.attr.exclude_idle)
 178                 ctx |= CTX_BIT_IDLE;
 179
 180         return ctx;
 181 }
 182
 183 static void reset_stat(struct runtime_stat *st)
 184 {
 185         struct rblist *rblist;
 186         struct rb_node *pos, *next;
 187
 188         rblist = &st->value_list;
 189         next = rb_first_cached(&rblist->entries);
 190         while (next) {
 191                 pos = next;
 192                 next = rb_next(pos);
 193                 memset(&container_of(pos, struct saved_value, rb_node)->stats,
 194                        0,
 195                        sizeof(struct stats));
 196         }
 197 }
 198
 199 void perf_stat__reset_shadow_stats(void)
 200 {
 201         reset_stat(&rt_stat);
 202         memset(&walltime_nsecs_stats, 0, sizeof(walltime_nsecs_stats));
 203         memset(&ru_stats, 0, sizeof(ru_stats));
 204 }
 205
 206 void perf_stat__reset_shadow_per_stat(struct runtime_stat *st)
 207 {
 208         reset_stat(st);
 209 }
 210
 211 struct runtime_stat_data {
 212         int ctx;
 213         struct cgroup *cgrp;
 214 };
 215
 216 static void update_runtime_stat(struct runtime_stat *st,
 217                                 enum stat_type type,
 218                                 int cpu_map_idx, u64 count,
 219                                 struct runtime_stat_data *rsd)
 220 {
 221         struct saved_value *v = saved_value_lookup(NULL, cpu_map_idx, true, type,
 222                                                    rsd->ctx, st, rsd->cgrp);
 223
 224         if (v)
 225                 update_stats(&v->stats, count);
 226 }
 227
 228 /*
 229  * Update various tracking values we maintain to print
 230  * more semantic information such as miss/hit ratios,
 231  * instruction rates, etc:
 232  */
 233 void perf_stat__update_shadow_stats(struct evsel *counter, u64 count,
 234                                     int cpu_map_idx, struct runtime_stat *st)
 235 {
 236         u64 count_ns = count;
 237         struct saved_value *v;
 238         struct runtime_stat_data rsd = {
 239                 .ctx = evsel_context(counter),
 240                 .cgrp = counter->cgrp,
 241         };
 242
 243         count *= counter->scale;
 244
 245         if (evsel__is_clock(counter))
 246                 update_runtime_stat(st, STAT_NSECS, cpu_map_idx, count_ns, &rsd);
 247         else if (evsel__match(counter, HARDWARE, HW_CPU_CYCLES))
 248                 update_runtime_stat(st, STAT_CYCLES, cpu_map_idx, count, &rsd);
 249         else if (perf_stat_evsel__is(counter, CYCLES_IN_TX))
 250                 update_runtime_stat(st, STAT_CYCLES_IN_TX, cpu_map_idx, count, &rsd);
 251         else if (perf_stat_evsel__is(counter, TRANSACTION_START))
 252                 update_runtime_stat(st, STAT_TRANSACTION, cpu_map_idx, count, &rsd);
 253         else if (perf_stat_evsel__is(counter, ELISION_START))
 254                 update_runtime_stat(st, STAT_ELISION, cpu_map_idx, count, &rsd);
 255         else if (perf_stat_evsel__is(counter, TOPDOWN_TOTAL_SLOTS))
 256                 update_runtime_stat(st, STAT_TOPDOWN_TOTAL_SLOTS,
 257                                     cpu_map_idx, count, &rsd);
 258         else if (perf_stat_evsel__is(counter, TOPDOWN_SLOTS_ISSUED))
 259                 update_runtime_stat(st, STAT_TOPDOWN_SLOTS_ISSUED,
 260                                     cpu_map_idx, count, &rsd);
 261         else if (perf_stat_evsel__is(counter, TOPDOWN_SLOTS_RETIRED))
 262                 update_runtime_stat(st, STAT_TOPDOWN_SLOTS_RETIRED,
 263                                     cpu_map_idx, count, &rsd);
 264         else if (perf_stat_evsel__is(counter, TOPDOWN_FETCH_BUBBLES))
 265                 update_runtime_stat(st, STAT_TOPDOWN_FETCH_BUBBLES,
 266                                     cpu_map_idx, count, &rsd);
 267         else if (perf_stat_evsel__is(counter, TOPDOWN_RECOVERY_BUBBLES))
 268                 update_runtime_stat(st, STAT_TOPDOWN_RECOVERY_BUBBLES,
 269                                     cpu_map_idx, count, &rsd);
 270         else if (perf_stat_evsel__is(counter, TOPDOWN_RETIRING))
 271                 update_runtime_stat(st, STAT_TOPDOWN_RETIRING,
 272                                     cpu_map_idx, count, &rsd);
 273         else if (perf_stat_evsel__is(counter, TOPDOWN_BAD_SPEC))
 274                 update_runtime_stat(st, STAT_TOPDOWN_BAD_SPEC,
 275                                     cpu_map_idx, count, &rsd);
 276         else if (perf_stat_evsel__is(counter, TOPDOWN_FE_BOUND))
 277                 update_runtime_stat(st, STAT_TOPDOWN_FE_BOUND,
 278                                     cpu_map_idx, count, &rsd);
 279         else if (perf_stat_evsel__is(counter, TOPDOWN_BE_BOUND))
 280                 update_runtime_stat(st, STAT_TOPDOWN_BE_BOUND,
 281                                     cpu_map_idx, count, &rsd);
 282         else if (perf_stat_evsel__is(counter, TOPDOWN_HEAVY_OPS))
 283                 update_runtime_stat(st, STAT_TOPDOWN_HEAVY_OPS,
 284                                     cpu_map_idx, count, &rsd);
 285         else if (perf_stat_evsel__is(counter, TOPDOWN_BR_MISPREDICT))
 286                 update_runtime_stat(st, STAT_TOPDOWN_BR_MISPREDICT,
 287                                     cpu_map_idx, count, &rsd);
 288         else if (perf_stat_evsel__is(counter, TOPDOWN_FETCH_LAT))
 289                 update_runtime_stat(st, STAT_TOPDOWN_FETCH_LAT,
 290                                     cpu_map_idx, count, &rsd);
 291         else if (perf_stat_evsel__is(counter, TOPDOWN_MEM_BOUND))
 292                 update_runtime_stat(st, STAT_TOPDOWN_MEM_BOUND,
 293                                     cpu_map_idx, count, &rsd);
 294         else if (evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
 295                 update_runtime_stat(st, STAT_STALLED_CYCLES_FRONT,
 296                                     cpu_map_idx, count, &rsd);
 297         else if (evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND))
 298                 update_runtime_stat(st, STAT_STALLED_CYCLES_BACK,
 299                                     cpu_map_idx, count, &rsd);
 300         else if (evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS))
 301                 update_runtime_stat(st, STAT_BRANCHES, cpu_map_idx, count, &rsd);
 302         else if (evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES))
 303                 update_runtime_stat(st, STAT_CACHEREFS, cpu_map_idx, count, &rsd);
 304         else if (evsel__match(counter, HW_CACHE, HW_CACHE_L1D))
 305                 update_runtime_stat(st, STAT_L1_DCACHE, cpu_map_idx, count, &rsd);
 306         else if (evsel__match(counter, HW_CACHE, HW_CACHE_L1I))
 307                 update_runtime_stat(st, STAT_L1_ICACHE, cpu_map_idx, count, &rsd);
 308         else if (evsel__match(counter, HW_CACHE, HW_CACHE_LL))
 309                 update_runtime_stat(st, STAT_LL_CACHE, cpu_map_idx, count, &rsd);
 310         else if (evsel__match(counter, HW_CACHE, HW_CACHE_DTLB))
 311                 update_runtime_stat(st, STAT_DTLB_CACHE, cpu_map_idx, count, &rsd);
 312         else if (evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))
 313                 update_runtime_stat(st, STAT_ITLB_CACHE, cpu_map_idx, count, &rsd);
 314         else if (perf_stat_evsel__is(counter, SMI_NUM))
 315                 update_runtime_stat(st, STAT_SMI_NUM, cpu_map_idx, count, &rsd);
 316         else if (perf_stat_evsel__is(counter, APERF))
 317                 update_runtime_stat(st, STAT_APERF, cpu_map_idx, count, &rsd);
 318
 319         if (counter->collect_stat) {
 320                 v = saved_value_lookup(counter, cpu_map_idx, true, STAT_NONE, 0, st,
 321                                        rsd.cgrp);
 322                 update_stats(&v->stats, count);
 323                 if (counter->metric_leader)
 324                         v->metric_total += count;
 325         } else if (counter->metric_leader) {
 326                 v = saved_value_lookup(counter->metric_leader,
 327                                        cpu_map_idx, true, STAT_NONE, 0, st, rsd.cgrp);
 328                 v->metric_total += count;
 329                 v->metric_other++;
 330         }
 331 }
 332
 333 /* used for get_ratio_color() */
 334 enum grc_type {
 335         GRC_STALLED_CYCLES_FE,
 336         GRC_STALLED_CYCLES_BE,
 337         GRC_CACHE_MISSES,
 338         GRC_MAX_NR
 339 };
 340
 341 static const char *get_ratio_color(enum grc_type type, double ratio)
 342 {
 343         static const double grc_table[GRC_MAX_NR][3] = {
 344                 [GRC_STALLED_CYCLES_FE] = { 50.0, 30.0, 10.0 },
 345                 [GRC_STALLED_CYCLES_BE] = { 75.0, 50.0, 20.0 },
 346                 [GRC_CACHE_MISSES]      = { 20.0, 10.0, 5.0 },
 347         };
 348         const char *color = PERF_COLOR_NORMAL;
 349
 350         if (ratio > grc_table[type][0])
 351                 color = PERF_COLOR_RED;
 352         else if (ratio > grc_table[type][1])
 353                 color = PERF_COLOR_MAGENTA;
 354         else if (ratio > grc_table[type][2])
 355                 color = PERF_COLOR_YELLOW;
 356
 357         return color;
 358 }
 359
 360 static struct evsel *perf_stat__find_event(struct evlist *evsel_list,
 361                                                 const char *name)
 362 {
 363         struct evsel *c2;
 364
 365         evlist__for_each_entry (evsel_list, c2) {
 366                 if (!strcasecmp(c2->name, name) && !c2->collect_stat)
 367                         return c2;
 368         }
 369         return NULL;
 370 }
 371
 372 /* Mark MetricExpr target events and link events using them to them. */
 373 void perf_stat__collect_metric_expr(struct evlist *evsel_list)
 374 {
 375         struct evsel *counter, *leader, **metric_events, *oc;
 376         bool found;
 377         struct expr_parse_ctx *ctx;
 378         struct hashmap_entry *cur;
 379         size_t bkt;
 380         int i;
 381
 382         ctx = expr__ctx_new();
 383         if (!ctx) {
 384                 pr_debug("expr__ctx_new failed");
 385                 return;
 386         }
 387         evlist__for_each_entry(evsel_list, counter) {
 388                 bool invalid = false;
 389
 390                 leader = evsel__leader(counter);
 391                 if (!counter->metric_expr)
 392                         continue;
 393
 394                 expr__ctx_clear(ctx);
 395                 metric_events = counter->metric_events;
 396                 if (!metric_events) {
 397                         if (expr__find_ids(counter->metric_expr,
 398                                            counter->name,
 399                                            ctx) < 0)
 400                                 continue;
 401
 402                         metric_events = calloc(sizeof(struct evsel *),
 403                                                hashmap__size(ctx->ids) + 1);
 404                         if (!metric_events) {
 405                                 expr__ctx_free(ctx);
 406                                 return;
 407                         }
 408                         counter->metric_events = metric_events;
 409                 }
 410
 411                 i = 0;
 412                 hashmap__for_each_entry(ctx->ids, cur, bkt) {
 413                         const char *metric_name = (const char *)cur->key;
 414
 415                         found = false;
 416                         if (leader) {
 417                                 /* Search in group */
 418                                 for_each_group_member (oc, leader) {
 419                                         if (!strcasecmp(oc->name,
 420                                                         metric_name) &&
 421                                                 !oc->collect_stat) {
 422                                                 found = true;
 423                                                 break;
 424                                         }
 425                                 }
 426                         }
 427                         if (!found) {
 428                                 /* Search ignoring groups */
 429                                 oc = perf_stat__find_event(evsel_list,
 430                                                            metric_name);
 431                         }
 432                         if (!oc) {
 433                                 /* Deduping one is good enough to handle duplicated PMUs. */
 434                                 static char *printed;
 435
 436                                 /*
 437                                  * Adding events automatically would be difficult, because
 438                                  * it would risk creating groups that are not schedulable.
 439                                  * perf stat doesn't understand all the scheduling constraints
 440                                  * of events. So we ask the user instead to add the missing
 441                                  * events.
 442                                  */
 443                                 if (!printed ||
 444                                     strcasecmp(printed, metric_name)) {
 445                                         fprintf(stderr,
 446                                                 "Add %s event to groups to get metric expression for %s\n",
 447                                                 metric_name,
 448                                                 counter->name);
 449                                         free(printed);
 450                                         printed = strdup(metric_name);
 451                                 }
 452                                 invalid = true;
 453                                 continue;
 454                         }
 455                         metric_events[i++] = oc;
 456                         oc->collect_stat = true;
 457                 }
 458                 metric_events[i] = NULL;
 459                 if (invalid) {
 460                         free(metric_events);
 461                         counter->metric_events = NULL;
 462                         counter->metric_expr = NULL;
 463                 }
 464         }
 465         expr__ctx_free(ctx);
 466 }
 467
 468 static double runtime_stat_avg(struct runtime_stat *st,
 469                                enum stat_type type, int cpu_map_idx,
 470                                struct runtime_stat_data *rsd)
 471 {
 472         struct saved_value *v;
 473
 474         v = saved_value_lookup(NULL, cpu_map_idx, false, type, rsd->ctx, st, rsd->cgrp);
 475         if (!v)
 476                 return 0.0;
 477
 478         return avg_stats(&v->stats);
 479 }
 480
 481 static double runtime_stat_n(struct runtime_stat *st,
 482                              enum stat_type type, int cpu_map_idx,
 483                              struct runtime_stat_data *rsd)
 484 {
 485         struct saved_value *v;
 486
 487         v = saved_value_lookup(NULL, cpu_map_idx, false, type, rsd->ctx, st, rsd->cgrp);
 488         if (!v)
 489                 return 0.0;
 490
 491         return v->stats.n;
 492 }
 493
 494 static void print_stalled_cycles_frontend(struct perf_stat_config *config,
 495                                           int cpu_map_idx, double avg,
 496                                           struct perf_stat_output_ctx *out,
 497                                           struct runtime_stat *st,
 498                                           struct runtime_stat_data *rsd)
 499 {
 500         double total, ratio = 0.0;
 501         const char *color;
 502
 503         total = runtime_stat_avg(st, STAT_CYCLES, cpu_map_idx, rsd);
 504
 505         if (total)
 506                 ratio = avg / total * 100.0;
 507
 508         color = get_ratio_color(GRC_STALLED_CYCLES_FE, ratio);
 509
 510         if (ratio)
 511                 out->print_metric(config, out->ctx, color, "%7.2f%%", "frontend cycles idle",
 512                                   ratio);
 513         else
 514                 out->print_metric(config, out->ctx, NULL, NULL, "frontend cycles idle", 0);
 515 }
 516
 517 static void print_stalled_cycles_backend(struct perf_stat_config *config,
 518                                          int cpu_map_idx, double avg,
 519                                          struct perf_stat_output_ctx *out,
 520                                          struct runtime_stat *st,
 521                                          struct runtime_stat_data *rsd)
 522 {
 523         double total, ratio = 0.0;
 524         const char *color;
 525
 526         total = runtime_stat_avg(st, STAT_CYCLES, cpu_map_idx, rsd);
 527
 528         if (total)
 529                 ratio = avg / total * 100.0;
 530
 531         color = get_ratio_color(GRC_STALLED_CYCLES_BE, ratio);
 532
 533         out->print_metric(config, out->ctx, color, "%7.2f%%", "backend cycles idle", ratio);
 534 }
 535
 536 static void print_branch_misses(struct perf_stat_config *config,
 537                                 int cpu_map_idx, double avg,
 538                                 struct perf_stat_output_ctx *out,
 539                                 struct runtime_stat *st,
 540                                 struct runtime_stat_data *rsd)
 541 {
 542         double total, ratio = 0.0;
 543         const char *color;
 544
 545         total = runtime_stat_avg(st, STAT_BRANCHES, cpu_map_idx, rsd);
 546
 547         if (total)
 548                 ratio = avg / total * 100.0;
 549
 550         color = get_ratio_color(GRC_CACHE_MISSES, ratio);
 551
 552         out->print_metric(config, out->ctx, color, "%7.2f%%", "of all branches", ratio);
 553 }
 554
 555 static void print_l1_dcache_misses(struct perf_stat_config *config,
 556                                    int cpu_map_idx, double avg,
 557                                    struct perf_stat_output_ctx *out,
 558                                    struct runtime_stat *st,
 559                                    struct runtime_stat_data *rsd)
 560 {
 561         double total, ratio = 0.0;
 562         const char *color;
 563
 564         total = runtime_stat_avg(st, STAT_L1_DCACHE, cpu_map_idx, rsd);
 565
 566         if (total)
 567                 ratio = avg / total * 100.0;
 568
 569         color = get_ratio_color(GRC_CACHE_MISSES, ratio);
 570
 571         out->print_metric(config, out->ctx, color, "%7.2f%%", "of all L1-dcache accesses", ratio);
 572 }
 573
 574 static void print_l1_icache_misses(struct perf_stat_config *config,
 575                                    int cpu_map_idx, double avg,
 576                                    struct perf_stat_output_ctx *out,
 577                                    struct runtime_stat *st,
 578                                    struct runtime_stat_data *rsd)
 579 {
 580         double total, ratio = 0.0;
 581         const char *color;
 582
 583         total = runtime_stat_avg(st, STAT_L1_ICACHE, cpu_map_idx, rsd);
 584
 585         if (total)
 586                 ratio = avg / total * 100.0;
 587
 588         color = get_ratio_color(GRC_CACHE_MISSES, ratio);
 589         out->print_metric(config, out->ctx, color, "%7.2f%%", "of all L1-icache accesses", ratio);
 590 }
 591
 592 static void print_dtlb_cache_misses(struct perf_stat_config *config,
 593                                     int cpu_map_idx, double avg,
 594                                     struct perf_stat_output_ctx *out,
 595                                     struct runtime_stat *st,
 596                                     struct runtime_stat_data *rsd)
 597 {
 598         double total, ratio = 0.0;
 599         const char *color;
 600
 601         total = runtime_stat_avg(st, STAT_DTLB_CACHE, cpu_map_idx, rsd);
 602
 603         if (total)
 604                 ratio = avg / total * 100.0;
 605
 606         color = get_ratio_color(GRC_CACHE_MISSES, ratio);
 607         out->print_metric(config, out->ctx, color, "%7.2f%%", "of all dTLB cache accesses", ratio);
 608 }
 609
 610 static void print_itlb_cache_misses(struct perf_stat_config *config,
 611                                     int cpu_map_idx, double avg,
 612                                     struct perf_stat_output_ctx *out,
 613                                     struct runtime_stat *st,
 614                                     struct runtime_stat_data *rsd)
 615 {
 616         double total, ratio = 0.0;
 617         const char *color;
 618
 619         total = runtime_stat_avg(st, STAT_ITLB_CACHE, cpu_map_idx, rsd);
 620
 621         if (total)
 622                 ratio = avg / total * 100.0;
 623
 624         color = get_ratio_color(GRC_CACHE_MISSES, ratio);
 625         out->print_metric(config, out->ctx, color, "%7.2f%%", "of all iTLB cache accesses", ratio);
 626 }
 627
 628 static void print_ll_cache_misses(struct perf_stat_config *config,
 629                                   int cpu_map_idx, double avg,
 630                                   struct perf_stat_output_ctx *out,
 631                                   struct runtime_stat *st,
 632                                   struct runtime_stat_data *rsd)
 633 {
 634         double total, ratio = 0.0;
 635         const char *color;
 636
 637         total = runtime_stat_avg(st, STAT_LL_CACHE, cpu_map_idx, rsd);
 638
 639         if (total)
 640                 ratio = avg / total * 100.0;
 641
 642         color = get_ratio_color(GRC_CACHE_MISSES, ratio);
 643         out->print_metric(config, out->ctx, color, "%7.2f%%", "of all LL-cache accesses", ratio);
 644 }
 645
 646 /*
 647  * High level "TopDown" CPU core pipe line bottleneck break down.
 648  *
 649  * Basic concept following
 650  * Yasin, A Top Down Method for Performance analysis and Counter architecture
 651  * ISPASS14
 652  *
 653  * The CPU pipeline is divided into 4 areas that can be bottlenecks:
 654  *
 655  * Frontend -> Backend -> Retiring
 656  * BadSpeculation in addition means out of order execution that is thrown away
 657  * (for example branch mispredictions)
 658  * Frontend is instruction decoding.
 659  * Backend is execution, like computation and accessing data in memory
 660  * Retiring is good execution that is not directly bottlenecked
 661  *
 662  * The formulas are computed in slots.
 663  * A slot is an entry in the pipeline each for the pipeline width
 664  * (for example a 4-wide pipeline has 4 slots for each cycle)
 665  *
 666  * Formulas:
 667  * BadSpeculation = ((SlotsIssued - SlotsRetired) + RecoveryBubbles) /
 668  *                      TotalSlots
 669  * Retiring = SlotsRetired / TotalSlots
 670  * FrontendBound = FetchBubbles / TotalSlots
 671  * BackendBound = 1.0 - BadSpeculation - Retiring - FrontendBound
 672  *
 673  * The kernel provides the mapping to the low level CPU events and any scaling
 674  * needed for the CPU pipeline width, for example:
 675  *
 676  * TotalSlots = Cycles * 4
 677  *
 678  * The scaling factor is communicated in the sysfs unit.
 679  *
 680  * In some cases the CPU may not be able to measure all the formulas due to
 681  * missing events. In this case multiple formulas are combined, as possible.
 682  *
 683  * Full TopDown supports more levels to sub-divide each area: for example
 684  * BackendBound into computing bound and memory bound. For now we only
 685  * support Level 1 TopDown.
 686  */
 687
 688 static double sanitize_val(double x)
 689 {
 690         if (x < 0 && x >= -0.02)
 691                 return 0.0;
 692         return x;
 693 }
 694
 695 static double td_total_slots(int cpu_map_idx, struct runtime_stat *st,
 696                              struct runtime_stat_data *rsd)
 697 {
 698         return runtime_stat_avg(st, STAT_TOPDOWN_TOTAL_SLOTS, cpu_map_idx, rsd);
 699 }
 700
 701 static double td_bad_spec(int cpu_map_idx, struct runtime_stat *st,
 702                           struct runtime_stat_data *rsd)
 703 {
 704         double bad_spec = 0;
 705         double total_slots;
 706         double total;
 707
 708         total = runtime_stat_avg(st, STAT_TOPDOWN_SLOTS_ISSUED, cpu_map_idx, rsd) -
 709                 runtime_stat_avg(st, STAT_TOPDOWN_SLOTS_RETIRED, cpu_map_idx, rsd) +
 710                 runtime_stat_avg(st, STAT_TOPDOWN_RECOVERY_BUBBLES, cpu_map_idx, rsd);
 711
 712         total_slots = td_total_slots(cpu_map_idx, st, rsd);
 713         if (total_slots)
 714                 bad_spec = total / total_slots;
 715         return sanitize_val(bad_spec);
 716 }
 717
 718 static double td_retiring(int cpu_map_idx, struct runtime_stat *st,
 719                           struct runtime_stat_data *rsd)
 720 {
 721         double retiring = 0;
 722         double total_slots = td_total_slots(cpu_map_idx, st, rsd);
 723         double ret_slots = runtime_stat_avg(st, STAT_TOPDOWN_SLOTS_RETIRED,
 724                                             cpu_map_idx, rsd);
 725
 726         if (total_slots)
 727                 retiring = ret_slots / total_slots;
 728         return retiring;
 729 }
 730
 731 static double td_fe_bound(int cpu_map_idx, struct runtime_stat *st,
 732                           struct runtime_stat_data *rsd)
 733 {
 734         double fe_bound = 0;
 735         double total_slots = td_total_slots(cpu_map_idx, st, rsd);
 736         double fetch_bub = runtime_stat_avg(st, STAT_TOPDOWN_FETCH_BUBBLES,
 737                                             cpu_map_idx, rsd);
 738
 739         if (total_slots)
 740                 fe_bound = fetch_bub / total_slots;
 741         return fe_bound;
 742 }
 743
 744 static double td_be_bound(int cpu_map_idx, struct runtime_stat *st,
 745                           struct runtime_stat_data *rsd)
 746 {
 747         double sum = (td_fe_bound(cpu_map_idx, st, rsd) +
 748                       td_bad_spec(cpu_map_idx, st, rsd) +
 749                       td_retiring(cpu_map_idx, st, rsd));
 750         if (sum == 0)
 751                 return 0;
 752         return sanitize_val(1.0 - sum);
 753 }
 754
 755 /*
 756  * Kernel reports metrics multiplied with slots. To get back
 757  * the ratios we need to recreate the sum.
 758  */
 759
 760 static double td_metric_ratio(int cpu_map_idx, enum stat_type type,
 761                               struct runtime_stat *stat,
 762                               struct runtime_stat_data *rsd)
 763 {
 764         double sum = runtime_stat_avg(stat, STAT_TOPDOWN_RETIRING, cpu_map_idx, rsd) +
 765                 runtime_stat_avg(stat, STAT_TOPDOWN_FE_BOUND, cpu_map_idx, rsd) +
 766                 runtime_stat_avg(stat, STAT_TOPDOWN_BE_BOUND, cpu_map_idx, rsd) +
 767                 runtime_stat_avg(stat, STAT_TOPDOWN_BAD_SPEC, cpu_map_idx, rsd);
 768         double d = runtime_stat_avg(stat, type, cpu_map_idx, rsd);
 769
 770         if (sum)
 771                 return d / sum;
 772         return 0;
 773 }
 774
 775 /*
 776  * ... but only if most of the values are actually available.
 777  * We allow two missing.
 778  */
 779
 780 static bool full_td(int cpu_map_idx, struct runtime_stat *stat,
 781                     struct runtime_stat_data *rsd)
 782 {
 783         int c = 0;
 784
 785         if (runtime_stat_avg(stat, STAT_TOPDOWN_RETIRING, cpu_map_idx, rsd) > 0)
 786                 c++;
 787         if (runtime_stat_avg(stat, STAT_TOPDOWN_BE_BOUND, cpu_map_idx, rsd) > 0)
 788                 c++;
 789         if (runtime_stat_avg(stat, STAT_TOPDOWN_FE_BOUND, cpu_map_idx, rsd) > 0)
 790                 c++;
 791         if (runtime_stat_avg(stat, STAT_TOPDOWN_BAD_SPEC, cpu_map_idx, rsd) > 0)
 792                 c++;
 793         return c >= 2;
 794 }
 795
 796 static void print_smi_cost(struct perf_stat_config *config, int cpu_map_idx,
 797                            struct perf_stat_output_ctx *out,
 798                            struct runtime_stat *st,
 799                            struct runtime_stat_data *rsd)
 800 {
 801         double smi_num, aperf, cycles, cost = 0.0;
 802         const char *color = NULL;
 803
 804         smi_num = runtime_stat_avg(st, STAT_SMI_NUM, cpu_map_idx, rsd);
 805         aperf = runtime_stat_avg(st, STAT_APERF, cpu_map_idx, rsd);
 806         cycles = runtime_stat_avg(st, STAT_CYCLES, cpu_map_idx, rsd);
 807
 808         if ((cycles == 0) || (aperf == 0))
 809                 return;
 810
 811         if (smi_num)
 812                 cost = (aperf - cycles) / aperf * 100.00;
 813
 814         if (cost > 10)
 815                 color = PERF_COLOR_RED;
 816         out->print_metric(config, out->ctx, color, "%8.1f%%", "SMI cycles%", cost);
 817         out->print_metric(config, out->ctx, NULL, "%4.0f", "SMI#", smi_num);
 818 }
 819
 820 static int prepare_metric(struct evsel **metric_events,
 821                           struct metric_ref *metric_refs,
 822                           struct expr_parse_ctx *pctx,
 823                           int cpu_map_idx,
 824                           struct runtime_stat *st)
 825 {
 826         double scale;
 827         char *n;
 828         int i, j, ret;
 829
 830         for (i = 0; metric_events[i]; i++) {
 831                 struct saved_value *v;
 832                 struct stats *stats;
 833                 u64 metric_total = 0;
 834                 int source_count;
 835
 836                 if (evsel__is_tool(metric_events[i])) {
 837                         source_count = 1;
 838                         switch (metric_events[i]->tool_event) {
 839                         case PERF_TOOL_DURATION_TIME:
 840                                 stats = &walltime_nsecs_stats;
 841                                 scale = 1e-9;
 842                                 break;
 843                         case PERF_TOOL_USER_TIME:
 844                                 stats = &ru_stats.ru_utime_usec_stat;
 845                                 scale = 1e-6;
 846                                 break;
 847                         case PERF_TOOL_SYSTEM_TIME:
 848                                 stats = &ru_stats.ru_stime_usec_stat;
 849                                 scale = 1e-6;
 850                                 break;
 851                         case PERF_TOOL_NONE:
 852                                 pr_err("Invalid tool event 'none'");
 853                                 abort();
 854                         case PERF_TOOL_MAX:
 855                                 pr_err("Invalid tool event 'max'");
 856                                 abort();
 857                         default:
 858                                 pr_err("Unknown tool event '%s'", evsel__name(metric_events[i]));
 859                                 abort();
 860                         }
 861                 } else {
 862                         v = saved_value_lookup(metric_events[i], cpu_map_idx, false,
 863                                                STAT_NONE, 0, st,
 864                                                metric_events[i]->cgrp);
 865                         if (!v)
 866                                 break;
 867                         stats = &v->stats;
 868                         scale = 1.0;
 869                         source_count = evsel__source_count(metric_events[i]);
 870
 871                         if (v->metric_other)
 872                                 metric_total = v->metric_total;
 873                 }
 874                 n = strdup(evsel__metric_id(metric_events[i]));
 875                 if (!n)
 876                         return -ENOMEM;
 877
 878                 expr__add_id_val_source_count(pctx, n,
 879                                         metric_total ? : avg_stats(stats) * scale,
 880                                         source_count);
 881         }
 882
 883         for (j = 0; metric_refs && metric_refs[j].metric_name; j++) {
 884                 ret = expr__add_ref(pctx, &metric_refs[j]);
 885                 if (ret)
 886                         return ret;
 887         }
 888
 889         return i;
 890 }
 891
 892 static void generic_metric(struct perf_stat_config *config,
 893                            const char *metric_expr,
 894                            struct evsel **metric_events,
 895                            struct metric_ref *metric_refs,
 896                            char *name,
 897                            const char *metric_name,
 898                            const char *metric_unit,
 899                            int runtime,
 900                            int cpu_map_idx,
 901                            struct perf_stat_output_ctx *out,
 902                            struct runtime_stat *st)
 903 {
 904         print_metric_t print_metric = out->print_metric;
 905         struct expr_parse_ctx *pctx;
 906         double ratio, scale;
 907         int i;
 908         void *ctxp = out->ctx;
 909
 910         pctx = expr__ctx_new();
 911         if (!pctx)
 912                 return;
 913
 914         pctx->runtime = runtime;
 915         i = prepare_metric(metric_events, metric_refs, pctx, cpu_map_idx, st);
 916         if (i < 0) {
 917                 expr__ctx_free(pctx);
 918                 return;
 919         }
 920         if (!metric_events[i]) {
 921                 if (expr__parse(&ratio, pctx, metric_expr) == 0) {
 922                         char *unit;
 923                         char metric_bf[64];
 924
 925                         if (metric_unit && metric_name) {
 926                                 if (perf_pmu__convert_scale(metric_unit,
 927                                         &unit, &scale) >= 0) {
 928                                         ratio *= scale;
 929                                 }
 930                                 if (strstr(metric_expr, "?"))
 931                                         scnprintf(metric_bf, sizeof(metric_bf),
 932                                           "%s  %s_%d", unit, metric_name, runtime);
 933                                 else
 934                                         scnprintf(metric_bf, sizeof(metric_bf),
 935                                           "%s  %s", unit, metric_name);
 936
 937                                 print_metric(config, ctxp, NULL, "%8.1f",
 938                                              metric_bf, ratio);
 939                         } else {
 940                                 print_metric(config, ctxp, NULL, "%8.2f",
 941                                         metric_name ?
 942                                         metric_name :
 943                                         out->force_header ?  name : "",
 944                                         ratio);
 945                         }
 946                 } else {
 947                         print_metric(config, ctxp, NULL, NULL,
 948                                      out->force_header ?
 949                                      (metric_name ? metric_name : name) : "", 0);
 950                 }
 951         } else {
 952                 print_metric(config, ctxp, NULL, NULL,
 953                              out->force_header ?
 954                              (metric_name ? metric_name : name) : "", 0);
 955         }
 956
 957         expr__ctx_free(pctx);
 958 }
 959
 960 double test_generic_metric(struct metric_expr *mexp, int cpu_map_idx, struct runtime_stat *st)
 961 {
 962         struct expr_parse_ctx *pctx;
 963         double ratio = 0.0;
 964
 965         pctx = expr__ctx_new();
 966         if (!pctx)
 967                 return NAN;
 968
 969         if (prepare_metric(mexp->metric_events, mexp->metric_refs, pctx, cpu_map_idx, st) < 0)
 970                 goto out;
 971
 972         if (expr__parse(&ratio, pctx, mexp->metric_expr))
 973                 ratio = 0.0;
 974
 975 out:
 976         expr__ctx_free(pctx);
 977         return ratio;
 978 }
 979
 980 void perf_stat__print_shadow_stats(struct perf_stat_config *config,
 981                                    struct evsel *evsel,
 982                                    double avg, int cpu_map_idx,
 983                                    struct perf_stat_output_ctx *out,
 984                                    struct rblist *metric_events,
 985                                    struct runtime_stat *st)
 986 {
 987         void *ctxp = out->ctx;
 988         print_metric_t print_metric = out->print_metric;
 989         double total, ratio = 0.0, total2;
 990         const char *color = NULL;
 991         struct runtime_stat_data rsd = {
 992                 .ctx = evsel_context(evsel),
 993                 .cgrp = evsel->cgrp,
 994         };
 995         struct metric_event *me;
 996         int num = 1;
 997
 998         if (config->iostat_run) {
 999                 iostat_print_metric(config, evsel, out);
1000         } else if (evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS)) {
1001                 total = runtime_stat_avg(st, STAT_CYCLES, cpu_map_idx, &rsd);
1002
1003                 if (total) {
1004                         ratio = avg / total;
1005                         print_metric(config, ctxp, NULL, "%7.2f ",
1006                                         "insn per cycle", ratio);
1007                 } else {
1008                         print_metric(config, ctxp, NULL, NULL, "insn per cycle", 0);
1009                 }
1010
1011                 total = runtime_stat_avg(st, STAT_STALLED_CYCLES_FRONT, cpu_map_idx, &rsd);
1012
1013                 total = max(total, runtime_stat_avg(st,
1014                                                     STAT_STALLED_CYCLES_BACK,
1015                                                     cpu_map_idx, &rsd));
1016
1017                 if (total && avg) {
1018                         out->new_line(config, ctxp);
1019                         ratio = total / avg;
1020                         print_metric(config, ctxp, NULL, "%7.2f ",
1021                                         "stalled cycles per insn",
1022                                         ratio);
1023                 }
1024         } else if (evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES)) {
1025                 if (runtime_stat_n(st, STAT_BRANCHES, cpu_map_idx, &rsd) != 0)
1026                         print_branch_misses(config, cpu_map_idx, avg, out, st, &rsd);
1027                 else
1028                         print_metric(config, ctxp, NULL, NULL, "of all branches", 0);
1029         } else if (
1030                 evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
1031                 evsel->core.attr.config ==  ( PERF_COUNT_HW_CACHE_L1D |
1032                                         ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
1033                                          ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
1034
1035                 if (runtime_stat_n(st, STAT_L1_DCACHE, cpu_map_idx, &rsd) != 0)
1036                         print_l1_dcache_misses(config, cpu_map_idx, avg, out, st, &rsd);
1037                 else
1038                         print_metric(config, ctxp, NULL, NULL, "of all L1-dcache accesses", 0);
1039         } else if (
1040                 evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
1041                 evsel->core.attr.config ==  ( PERF_COUNT_HW_CACHE_L1I |
1042                                         ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
1043                                          ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
1044
1045                 if (runtime_stat_n(st, STAT_L1_ICACHE, cpu_map_idx, &rsd) != 0)
1046                         print_l1_icache_misses(config, cpu_map_idx, avg, out, st, &rsd);
1047                 else
1048                         print_metric(config, ctxp, NULL, NULL, "of all L1-icache accesses", 0);
1049         } else if (
1050                 evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
1051                 evsel->core.attr.config ==  ( PERF_COUNT_HW_CACHE_DTLB |
1052                                         ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
1053                                          ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
1054
1055                 if (runtime_stat_n(st, STAT_DTLB_CACHE, cpu_map_idx, &rsd) != 0)
1056                         print_dtlb_cache_misses(config, cpu_map_idx, avg, out, st, &rsd);
1057                 else
1058                         print_metric(config, ctxp, NULL, NULL, "of all dTLB cache accesses", 0);
1059         } else if (
1060                 evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
1061                 evsel->core.attr.config ==  ( PERF_COUNT_HW_CACHE_ITLB |
1062                                         ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
1063                                          ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
1064
1065                 if (runtime_stat_n(st, STAT_ITLB_CACHE, cpu_map_idx, &rsd) != 0)
1066                         print_itlb_cache_misses(config, cpu_map_idx, avg, out, st, &rsd);
1067                 else
1068                         print_metric(config, ctxp, NULL, NULL, "of all iTLB cache accesses", 0);
1069         } else if (
1070                 evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
1071                 evsel->core.attr.config ==  ( PERF_COUNT_HW_CACHE_LL |
1072                                         ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
1073                                          ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
1074
1075                 if (runtime_stat_n(st, STAT_LL_CACHE, cpu_map_idx, &rsd) != 0)
1076                         print_ll_cache_misses(config, cpu_map_idx, avg, out, st, &rsd);
1077                 else
1078                         print_metric(config, ctxp, NULL, NULL, "of all LL-cache accesses", 0);
1079         } else if (evsel__match(evsel, HARDWARE, HW_CACHE_MISSES)) {
1080                 total = runtime_stat_avg(st, STAT_CACHEREFS, cpu_map_idx, &rsd);
1081
1082                 if (total)
1083                         ratio = avg * 100 / total;
1084
1085                 if (runtime_stat_n(st, STAT_CACHEREFS, cpu_map_idx, &rsd) != 0)
1086                         print_metric(config, ctxp, NULL, "%8.3f %%",
1087                                      "of all cache refs", ratio);
1088                 else
1089                         print_metric(config, ctxp, NULL, NULL, "of all cache refs", 0);
1090         } else if (evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_FRONTEND)) {
1091                 print_stalled_cycles_frontend(config, cpu_map_idx, avg, out, st, &rsd);
1092         } else if (evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_BACKEND)) {
1093                 print_stalled_cycles_backend(config, cpu_map_idx, avg, out, st, &rsd);
1094         } else if (evsel__match(evsel, HARDWARE, HW_CPU_CYCLES)) {
1095                 total = runtime_stat_avg(st, STAT_NSECS, cpu_map_idx, &rsd);
1096
1097                 if (total) {
1098                         ratio = avg / total;
1099                         print_metric(config, ctxp, NULL, "%8.3f", "GHz", ratio);
1100                 } else {
1101                         print_metric(config, ctxp, NULL, NULL, "Ghz", 0);
1102                 }
1103         } else if (perf_stat_evsel__is(evsel, CYCLES_IN_TX)) {
1104                 total = runtime_stat_avg(st, STAT_CYCLES, cpu_map_idx, &rsd);
1105
1106                 if (total)
1107                         print_metric(config, ctxp, NULL,
1108                                         "%7.2f%%", "transactional cycles",
1109                                         100.0 * (avg / total));
1110                 else
1111                         print_metric(config, ctxp, NULL, NULL, "transactional cycles",
1112                                      0);
1113         } else if (perf_stat_evsel__is(evsel, CYCLES_IN_TX_CP)) {
1114                 total = runtime_stat_avg(st, STAT_CYCLES, cpu_map_idx, &rsd);
1115                 total2 = runtime_stat_avg(st, STAT_CYCLES_IN_TX, cpu_map_idx, &rsd);
1116
1117                 if (total2 < avg)
1118                         total2 = avg;
1119                 if (total)
1120                         print_metric(config, ctxp, NULL, "%7.2f%%", "aborted cycles",
1121                                 100.0 * ((total2-avg) / total));
1122                 else
1123                         print_metric(config, ctxp, NULL, NULL, "aborted cycles", 0);
1124         } else if (perf_stat_evsel__is(evsel, TRANSACTION_START)) {
1125                 total = runtime_stat_avg(st, STAT_CYCLES_IN_TX, cpu_map_idx, &rsd);
1126
1127                 if (avg)
1128                         ratio = total / avg;
1129
1130                 if (runtime_stat_n(st, STAT_CYCLES_IN_TX, cpu_map_idx, &rsd) != 0)
1131                         print_metric(config, ctxp, NULL, "%8.0f",
1132                                      "cycles / transaction", ratio);
1133                 else
1134                         print_metric(config, ctxp, NULL, NULL, "cycles / transaction",
1135                                       0);
1136         } else if (perf_stat_evsel__is(evsel, ELISION_START)) {
1137                 total = runtime_stat_avg(st, STAT_CYCLES_IN_TX, cpu_map_idx, &rsd);
1138
1139                 if (avg)
1140                         ratio = total / avg;
1141
1142                 print_metric(config, ctxp, NULL, "%8.0f", "cycles / elision", ratio);
1143         } else if (evsel__is_clock(evsel)) {
1144                 if ((ratio = avg_stats(&walltime_nsecs_stats)) != 0)
1145                         print_metric(config, ctxp, NULL, "%8.3f", "CPUs utilized",
1146                                      avg / (ratio * evsel->scale));
1147                 else
1148                         print_metric(config, ctxp, NULL, NULL, "CPUs utilized", 0);
1149         } else if (perf_stat_evsel__is(evsel, TOPDOWN_FETCH_BUBBLES)) {
1150                 double fe_bound = td_fe_bound(cpu_map_idx, st, &rsd);
1151
1152                 if (fe_bound > 0.2)
1153                         color = PERF_COLOR_RED;
1154                 print_metric(config, ctxp, color, "%8.1f%%", "frontend bound",
1155                                 fe_bound * 100.);
1156         } else if (perf_stat_evsel__is(evsel, TOPDOWN_SLOTS_RETIRED)) {
1157                 double retiring = td_retiring(cpu_map_idx, st, &rsd);
1158
1159                 if (retiring > 0.7)
1160                         color = PERF_COLOR_GREEN;
1161                 print_metric(config, ctxp, color, "%8.1f%%", "retiring",
1162                                 retiring * 100.);
1163         } else if (perf_stat_evsel__is(evsel, TOPDOWN_RECOVERY_BUBBLES)) {
1164                 double bad_spec = td_bad_spec(cpu_map_idx, st, &rsd);
1165
1166                 if (bad_spec > 0.1)
1167                         color = PERF_COLOR_RED;
1168                 print_metric(config, ctxp, color, "%8.1f%%", "bad speculation",
1169                                 bad_spec * 100.);
1170         } else if (perf_stat_evsel__is(evsel, TOPDOWN_SLOTS_ISSUED)) {
1171                 double be_bound = td_be_bound(cpu_map_idx, st, &rsd);
1172                 const char *name = "backend bound";
1173                 static int have_recovery_bubbles = -1;
1174
1175                 /* In case the CPU does not support topdown-recovery-bubbles */
1176                 if (have_recovery_bubbles < 0)
1177                         have_recovery_bubbles = pmu_have_event("cpu",
1178                                         "topdown-recovery-bubbles");
1179                 if (!have_recovery_bubbles)
1180                         name = "backend bound/bad spec";
1181
1182                 if (be_bound > 0.2)
1183                         color = PERF_COLOR_RED;
1184                 if (td_total_slots(cpu_map_idx, st, &rsd) > 0)
1185                         print_metric(config, ctxp, color, "%8.1f%%", name,
1186                                         be_bound * 100.);
1187                 else
1188                         print_metric(config, ctxp, NULL, NULL, name, 0);
1189         } else if (perf_stat_evsel__is(evsel, TOPDOWN_RETIRING) &&
1190                    full_td(cpu_map_idx, st, &rsd)) {
1191                 double retiring = td_metric_ratio(cpu_map_idx,
1192                                                   STAT_TOPDOWN_RETIRING, st,
1193                                                   &rsd);
1194                 if (retiring > 0.7)
1195                         color = PERF_COLOR_GREEN;
1196                 print_metric(config, ctxp, color, "%8.1f%%", "Retiring",
1197                                 retiring * 100.);
1198         } else if (perf_stat_evsel__is(evsel, TOPDOWN_FE_BOUND) &&
1199                    full_td(cpu_map_idx, st, &rsd)) {
1200                 double fe_bound = td_metric_ratio(cpu_map_idx,
1201                                                   STAT_TOPDOWN_FE_BOUND, st,
1202                                                   &rsd);
1203                 if (fe_bound > 0.2)
1204                         color = PERF_COLOR_RED;
1205                 print_metric(config, ctxp, color, "%8.1f%%", "Frontend Bound",
1206                                 fe_bound * 100.);
1207         } else if (perf_stat_evsel__is(evsel, TOPDOWN_BE_BOUND) &&
1208                    full_td(cpu_map_idx, st, &rsd)) {
1209                 double be_bound = td_metric_ratio(cpu_map_idx,
1210                                                   STAT_TOPDOWN_BE_BOUND, st,
1211                                                   &rsd);
1212                 if (be_bound > 0.2)
1213                         color = PERF_COLOR_RED;
1214                 print_metric(config, ctxp, color, "%8.1f%%", "Backend Bound",
1215                                 be_bound * 100.);
1216         } else if (perf_stat_evsel__is(evsel, TOPDOWN_BAD_SPEC) &&
1217                    full_td(cpu_map_idx, st, &rsd)) {
1218                 double bad_spec = td_metric_ratio(cpu_map_idx,
1219                                                   STAT_TOPDOWN_BAD_SPEC, st,
1220                                                   &rsd);
1221                 if (bad_spec > 0.1)
1222                         color = PERF_COLOR_RED;
1223                 print_metric(config, ctxp, color, "%8.1f%%", "Bad Speculation",
1224                                 bad_spec * 100.);
1225         } else if (perf_stat_evsel__is(evsel, TOPDOWN_HEAVY_OPS) &&
1226                         full_td(cpu_map_idx, st, &rsd) && (config->topdown_level > 1)) {
1227                 double retiring = td_metric_ratio(cpu_map_idx,
1228                                                   STAT_TOPDOWN_RETIRING, st,
1229                                                   &rsd);
1230                 double heavy_ops = td_metric_ratio(cpu_map_idx,
1231                                                    STAT_TOPDOWN_HEAVY_OPS, st,
1232                                                    &rsd);
1233                 double light_ops = retiring - heavy_ops;
1234
1235                 if (retiring > 0.7 && heavy_ops > 0.1)
1236                         color = PERF_COLOR_GREEN;
1237                 print_metric(config, ctxp, color, "%8.1f%%", "Heavy Operations",
1238                                 heavy_ops * 100.);
1239                 if (retiring > 0.7 && light_ops > 0.6)
1240                         color = PERF_COLOR_GREEN;
1241                 else
1242                         color = NULL;
1243                 print_metric(config, ctxp, color, "%8.1f%%", "Light Operations",
1244                                 light_ops * 100.);
1245         } else if (perf_stat_evsel__is(evsel, TOPDOWN_BR_MISPREDICT) &&
1246                         full_td(cpu_map_idx, st, &rsd) && (config->topdown_level > 1)) {
1247                 double bad_spec = td_metric_ratio(cpu_map_idx,
1248                                                   STAT_TOPDOWN_BAD_SPEC, st,
1249                                                   &rsd);
1250                 double br_mis = td_metric_ratio(cpu_map_idx,
1251                                                 STAT_TOPDOWN_BR_MISPREDICT, st,
1252                                                 &rsd);
1253                 double m_clears = bad_spec - br_mis;
1254
1255                 if (bad_spec > 0.1 && br_mis > 0.05)
1256                         color = PERF_COLOR_RED;
1257                 print_metric(config, ctxp, color, "%8.1f%%", "Branch Mispredict",
1258                                 br_mis * 100.);
1259                 if (bad_spec > 0.1 && m_clears > 0.05)
1260                         color = PERF_COLOR_RED;
1261                 else
1262                         color = NULL;
1263                 print_metric(config, ctxp, color, "%8.1f%%", "Machine Clears",
1264                                 m_clears * 100.);
1265         } else if (perf_stat_evsel__is(evsel, TOPDOWN_FETCH_LAT) &&
1266                         full_td(cpu_map_idx, st, &rsd) && (config->topdown_level > 1)) {
1267                 double fe_bound = td_metric_ratio(cpu_map_idx,
1268                                                   STAT_TOPDOWN_FE_BOUND, st,
1269                                                   &rsd);
1270                 double fetch_lat = td_metric_ratio(cpu_map_idx,
1271                                                    STAT_TOPDOWN_FETCH_LAT, st,
1272                                                    &rsd);
1273                 double fetch_bw = fe_bound - fetch_lat;
1274
1275                 if (fe_bound > 0.2 && fetch_lat > 0.15)
1276                         color = PERF_COLOR_RED;
1277                 print_metric(config, ctxp, color, "%8.1f%%", "Fetch Latency",
1278                                 fetch_lat * 100.);
1279                 if (fe_bound > 0.2 && fetch_bw > 0.1)
1280                         color = PERF_COLOR_RED;
1281                 else
1282                         color = NULL;
1283                 print_metric(config, ctxp, color, "%8.1f%%", "Fetch Bandwidth",
1284                                 fetch_bw * 100.);
1285         } else if (perf_stat_evsel__is(evsel, TOPDOWN_MEM_BOUND) &&
1286                         full_td(cpu_map_idx, st, &rsd) && (config->topdown_level > 1)) {
1287                 double be_bound = td_metric_ratio(cpu_map_idx,
1288                                                   STAT_TOPDOWN_BE_BOUND, st,
1289                                                   &rsd);
1290                 double mem_bound = td_metric_ratio(cpu_map_idx,
1291                                                    STAT_TOPDOWN_MEM_BOUND, st,
1292                                                    &rsd);
1293                 double core_bound = be_bound - mem_bound;
1294
1295                 if (be_bound > 0.2 && mem_bound > 0.2)
1296                         color = PERF_COLOR_RED;
1297                 print_metric(config, ctxp, color, "%8.1f%%", "Memory Bound",
1298                                 mem_bound * 100.);
1299                 if (be_bound > 0.2 && core_bound > 0.1)
1300                         color = PERF_COLOR_RED;
1301                 else
1302                         color = NULL;
1303                 print_metric(config, ctxp, color, "%8.1f%%", "Core Bound",
1304                                 core_bound * 100.);
1305         } else if (evsel->metric_expr) {
1306                 generic_metric(config, evsel->metric_expr, evsel->metric_events, NULL,
1307                                 evsel->name, evsel->metric_name, NULL, 1, cpu_map_idx, out, st);
1308         } else if (runtime_stat_n(st, STAT_NSECS, cpu_map_idx, &rsd) != 0) {
1309                 char unit = ' ';
1310                 char unit_buf[10] = "/sec";
1311
1312                 total = runtime_stat_avg(st, STAT_NSECS, cpu_map_idx, &rsd);
1313                 if (total)
1314                         ratio = convert_unit_double(1000000000.0 * avg / total, &unit);
1315
1316                 if (unit != ' ')
1317                         snprintf(unit_buf, sizeof(unit_buf), "%c/sec", unit);
1318                 print_metric(config, ctxp, NULL, "%8.3f", unit_buf, ratio);
1319         } else if (perf_stat_evsel__is(evsel, SMI_NUM)) {
1320                 print_smi_cost(config, cpu_map_idx, out, st, &rsd);
1321         } else {
1322                 num = 0;
1323         }
1324
1325         if ((me = metricgroup__lookup(metric_events, evsel, false)) != NULL) {
1326                 struct metric_expr *mexp;
1327
1328                 list_for_each_entry (mexp, &me->head, nd) {
1329                         if (num++ > 0)
1330                                 out->new_line(config, ctxp);
1331                         generic_metric(config, mexp->metric_expr, mexp->metric_events,
1332                                         mexp->metric_refs, evsel->name, mexp->metric_name,
1333                                         mexp->metric_unit, mexp->runtime, cpu_map_idx, out, st);
1334                 }
1335         }
1336         if (num == 0)
1337                 print_metric(config, ctxp, NULL, NULL, NULL, 0);
1338 }