tools/perf/ui/hist.c

   1 #include <math.h>
   2 #include <linux/compiler.h>
   3
   4 #include "../util/hist.h"
   5 #include "../util/util.h"
   6 #include "../util/sort.h"
   7 #include "../util/evsel.h"
   8
   9 /* hist period print (hpp) functions */
  10
  11 typedef int (*hpp_snprint_fn)(char *buf, size_t size, const char *fmt, ...);
  12
  13 static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
  14                       u64 (*get_field)(struct hist_entry *),
  15                       const char *fmt, hpp_snprint_fn print_fn,
  16                       bool fmt_percent)
  17 {
  18         int ret;
  19         struct hists *hists = he->hists;
  20         struct perf_evsel *evsel = hists_to_evsel(hists);
  21
  22         if (fmt_percent) {
  23                 double percent = 0.0;
  24
  25                 if (hists->stats.total_period)
  26                         percent = 100.0 * get_field(he) /
  27                                   hists->stats.total_period;
  28
  29                 ret = print_fn(hpp->buf, hpp->size, fmt, percent);
  30         } else
  31                 ret = print_fn(hpp->buf, hpp->size, fmt, get_field(he));
  32
  33         if (perf_evsel__is_group_event(evsel)) {
  34                 int prev_idx, idx_delta;
  35                 struct hist_entry *pair;
  36                 int nr_members = evsel->nr_members;
  37
  38                 prev_idx = perf_evsel__group_idx(evsel);
  39
  40                 list_for_each_entry(pair, &he->pairs.head, pairs.node) {
  41                         u64 period = get_field(pair);
  42                         u64 total = pair->hists->stats.total_period;
  43
  44                         if (!total)
  45                                 continue;
  46
  47                         evsel = hists_to_evsel(pair->hists);
  48                         idx_delta = perf_evsel__group_idx(evsel) - prev_idx - 1;
  49
  50                         while (idx_delta--) {
  51                                 /*
  52                                  * zero-fill group members in the middle which
  53                                  * have no sample
  54                                  */
  55                                 ret += print_fn(hpp->buf + ret, hpp->size - ret,
  56                                                 fmt, 0);
  57                         }
  58
  59                         if (fmt_percent)
  60                                 ret += print_fn(hpp->buf + ret, hpp->size - ret,
  61                                                 fmt, 100.0 * period / total);
  62                         else
  63                                 ret += print_fn(hpp->buf + ret, hpp->size - ret,
  64                                                 fmt, period);
  65
  66                         prev_idx = perf_evsel__group_idx(evsel);
  67                 }
  68
  69                 idx_delta = nr_members - prev_idx - 1;
  70
  71                 while (idx_delta--) {
  72                         /*
  73                          * zero-fill group members at last which have no sample
  74                          */
  75                         ret += print_fn(hpp->buf + ret, hpp->size - ret,
  76                                         fmt, 0);
  77                 }
  78         }
  79         return ret;
  80 }
  81
  82 #define __HPP_HEADER_FN(_type, _str, _min_width, _unit_width)           \
  83 static int hpp__header_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
  84                                struct perf_hpp *hpp)                    \
  85 {                                                                       \
  86         int len = _min_width;                                           \
  87                                                                         \
  88         if (symbol_conf.event_group) {                                  \
  89                 struct perf_evsel *evsel = hpp->ptr;                    \
  90                                                                         \
  91                 len = max(len, evsel->nr_members * _unit_width);        \
  92         }                                                               \
  93         return scnprintf(hpp->buf, hpp->size, "%*s", len, _str);        \
  94 }
  95
  96 #define __HPP_WIDTH_FN(_type, _min_width, _unit_width)                  \
  97 static int hpp__width_##_type(struct perf_hpp_fmt *fmt __maybe_unused,  \
  98                               struct perf_hpp *hpp __maybe_unused)      \
  99 {                                                                       \
 100         int len = _min_width;                                           \
 101                                                                         \
 102         if (symbol_conf.event_group) {                                  \
 103                 struct perf_evsel *evsel = hpp->ptr;                    \
 104                                                                         \
 105                 len = max(len, evsel->nr_members * _unit_width);        \
 106         }                                                               \
 107         return len;                                                     \
 108 }
 109
 110 #define __HPP_COLOR_PERCENT_FN(_type, _field)                                   \
 111 static u64 he_get_##_field(struct hist_entry *he)                               \
 112 {                                                                               \
 113         return he->stat._field;                                                 \
 114 }                                                                               \
 115                                                                                 \
 116 static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,          \
 117                               struct perf_hpp *hpp, struct hist_entry *he)      \
 118 {                                                                               \
 119         return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%",                 \
 120                           (hpp_snprint_fn)percent_color_snprintf, true);        \
 121 }
 122
 123 #define __HPP_ENTRY_PERCENT_FN(_type, _field)                                   \
 124 static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused,         \
 125                               struct perf_hpp *hpp, struct hist_entry *he)      \
 126 {                                                                               \
 127         const char *fmt = symbol_conf.field_sep ? " %.2f" : " %6.2f%%";         \
 128         return __hpp__fmt(hpp, he, he_get_##_field, fmt,                        \
 129                           scnprintf, true);                                     \
 130 }
 131
 132 #define __HPP_ENTRY_RAW_FN(_type, _field)                                       \
 133 static u64 he_get_raw_##_field(struct hist_entry *he)                           \
 134 {                                                                               \
 135         return he->stat._field;                                                 \
 136 }                                                                               \
 137                                                                                 \
 138 static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused,         \
 139                               struct perf_hpp *hpp, struct hist_entry *he)      \
 140 {                                                                               \
 141         const char *fmt = symbol_conf.field_sep ? " %"PRIu64 : " %11"PRIu64;    \
 142         return __hpp__fmt(hpp, he, he_get_raw_##_field, fmt, scnprintf, false); \
 143 }
 144
 145 #define HPP_PERCENT_FNS(_type, _str, _field, _min_width, _unit_width)   \
 146 __HPP_HEADER_FN(_type, _str, _min_width, _unit_width)                   \
 147 __HPP_WIDTH_FN(_type, _min_width, _unit_width)                          \
 148 __HPP_COLOR_PERCENT_FN(_type, _field)                                   \
 149 __HPP_ENTRY_PERCENT_FN(_type, _field)
 150
 151 #define HPP_RAW_FNS(_type, _str, _field, _min_width, _unit_width)       \
 152 __HPP_HEADER_FN(_type, _str, _min_width, _unit_width)                   \
 153 __HPP_WIDTH_FN(_type, _min_width, _unit_width)                          \
 154 __HPP_ENTRY_RAW_FN(_type, _field)
 155
 156
 157 HPP_PERCENT_FNS(overhead, "Overhead", period, 8, 8)
 158 HPP_PERCENT_FNS(overhead_sys, "sys", period_sys, 8, 8)
 159 HPP_PERCENT_FNS(overhead_us, "usr", period_us, 8, 8)
 160 HPP_PERCENT_FNS(overhead_guest_sys, "guest sys", period_guest_sys, 9, 8)
 161 HPP_PERCENT_FNS(overhead_guest_us, "guest usr", period_guest_us, 9, 8)
 162
 163 HPP_RAW_FNS(samples, "Samples", nr_events, 12, 12)
 164 HPP_RAW_FNS(period, "Period", period, 12, 12)
 165
 166
 167 static int hpp__header_baseline(struct perf_hpp_fmt *fmt __maybe_unused,
 168                                 struct perf_hpp *hpp)
 169 {
 170         return scnprintf(hpp->buf, hpp->size, "Baseline");
 171 }
 172
 173 static int hpp__width_baseline(struct perf_hpp_fmt *fmt __maybe_unused,
 174                                struct perf_hpp *hpp __maybe_unused)
 175 {
 176         return 8;
 177 }
 178
 179 static double baseline_percent(struct hist_entry *he)
 180 {
 181         struct hist_entry *pair = hist_entry__next_pair(he);
 182         struct hists *pair_hists = pair ? pair->hists : NULL;
 183         double percent = 0.0;
 184
 185         if (pair) {
 186                 u64 total_period = pair_hists->stats.total_period;
 187                 u64 base_period  = pair->stat.period;
 188
 189                 percent = 100.0 * base_period / total_period;
 190         }
 191
 192         return percent;
 193 }
 194
 195 static int hpp__color_baseline(struct perf_hpp_fmt *fmt __maybe_unused,
 196                                struct perf_hpp *hpp, struct hist_entry *he)
 197 {
 198         double percent = baseline_percent(he);
 199
 200         if (hist_entry__has_pairs(he) || symbol_conf.field_sep)
 201                 return percent_color_snprintf(hpp->buf, hpp->size, " %6.2f%%", percent);
 202         else
 203                 return scnprintf(hpp->buf, hpp->size, "        ");
 204 }
 205
 206 static int hpp__entry_baseline(struct perf_hpp_fmt *_fmt __maybe_unused,
 207                                struct perf_hpp *hpp, struct hist_entry *he)
 208 {
 209         double percent = baseline_percent(he);
 210         const char *fmt = symbol_conf.field_sep ? "%.2f" : " %6.2f%%";
 211
 212         if (hist_entry__has_pairs(he) || symbol_conf.field_sep)
 213                 return scnprintf(hpp->buf, hpp->size, fmt, percent);
 214         else
 215                 return scnprintf(hpp->buf, hpp->size, "            ");
 216 }
 217
 218 static int hpp__header_period_baseline(struct perf_hpp_fmt *_fmt __maybe_unused,
 219                                        struct perf_hpp *hpp)
 220 {
 221         const char *fmt = symbol_conf.field_sep ? "%s" : "%12s";
 222
 223         return scnprintf(hpp->buf, hpp->size, fmt, "Period Base");
 224 }
 225
 226 static int hpp__width_period_baseline(struct perf_hpp_fmt *fmt __maybe_unused,
 227                                       struct perf_hpp *hpp __maybe_unused)
 228 {
 229         return 12;
 230 }
 231
 232 static int hpp__entry_period_baseline(struct perf_hpp_fmt *_fmt __maybe_unused,
 233                                       struct perf_hpp *hpp, struct hist_entry *he)
 234 {
 235         struct hist_entry *pair = hist_entry__next_pair(he);
 236         u64 period = pair ? pair->stat.period : 0;
 237         const char *fmt = symbol_conf.field_sep ? "%" PRIu64 : "%12" PRIu64;
 238
 239         return scnprintf(hpp->buf, hpp->size, fmt, period);
 240 }
 241
 242 static int hpp__header_delta(struct perf_hpp_fmt *_fmt __maybe_unused,
 243                              struct perf_hpp *hpp)
 244 {
 245         const char *fmt = symbol_conf.field_sep ? "%s" : "%7s";
 246
 247         return scnprintf(hpp->buf, hpp->size, fmt, "Delta");
 248 }
 249
 250 static int hpp__width_delta(struct perf_hpp_fmt *fmt __maybe_unused,
 251                             struct perf_hpp *hpp __maybe_unused)
 252 {
 253         return 7;
 254 }
 255
 256 static int hpp__entry_delta(struct perf_hpp_fmt *_fmt __maybe_unused,
 257                             struct perf_hpp *hpp, struct hist_entry *he)
 258 {
 259         struct hist_entry *pair = hist_entry__next_pair(he);
 260         const char *fmt = symbol_conf.field_sep ? "%s" : "%7.7s";
 261         char buf[32] = " ";
 262         double diff = 0.0;
 263
 264         if (pair) {
 265                 if (he->diff.computed)
 266                         diff = he->diff.period_ratio_delta;
 267                 else
 268                         diff = perf_diff__compute_delta(he, pair);
 269         } else
 270                 diff = perf_diff__period_percent(he, he->stat.period);
 271
 272         if (fabs(diff) >= 0.01)
 273                 scnprintf(buf, sizeof(buf), "%+4.2F%%", diff);
 274
 275         return scnprintf(hpp->buf, hpp->size, fmt, buf);
 276 }
 277
 278 static int hpp__header_ratio(struct perf_hpp_fmt *_fmt __maybe_unused,
 279                              struct perf_hpp *hpp)
 280 {
 281         const char *fmt = symbol_conf.field_sep ? "%s" : "%14s";
 282
 283         return scnprintf(hpp->buf, hpp->size, fmt, "Ratio");
 284 }
 285
 286 static int hpp__width_ratio(struct perf_hpp_fmt *fmt __maybe_unused,
 287                             struct perf_hpp *hpp __maybe_unused)
 288 {
 289         return 14;
 290 }
 291
 292 static int hpp__entry_ratio(struct perf_hpp_fmt *_fmt __maybe_unused,
 293                             struct perf_hpp *hpp, struct hist_entry *he)
 294 {
 295         struct hist_entry *pair = hist_entry__next_pair(he);
 296         const char *fmt = symbol_conf.field_sep ? "%s" : "%14s";
 297         char buf[32] = " ";
 298         double ratio = 0.0;
 299
 300         if (pair) {
 301                 if (he->diff.computed)
 302                         ratio = he->diff.period_ratio;
 303                 else
 304                         ratio = perf_diff__compute_ratio(he, pair);
 305         }
 306
 307         if (ratio > 0.0)
 308                 scnprintf(buf, sizeof(buf), "%+14.6F", ratio);
 309
 310         return scnprintf(hpp->buf, hpp->size, fmt, buf);
 311 }
 312
 313 static int hpp__header_wdiff(struct perf_hpp_fmt *_fmt __maybe_unused,
 314                              struct perf_hpp *hpp)
 315 {
 316         const char *fmt = symbol_conf.field_sep ? "%s" : "%14s";
 317
 318         return scnprintf(hpp->buf, hpp->size, fmt, "Weighted diff");
 319 }
 320
 321 static int hpp__width_wdiff(struct perf_hpp_fmt *fmt __maybe_unused,
 322                             struct perf_hpp *hpp __maybe_unused)
 323 {
 324         return 14;
 325 }
 326
 327 static int hpp__entry_wdiff(struct perf_hpp_fmt *_fmt __maybe_unused,
 328                             struct perf_hpp *hpp, struct hist_entry *he)
 329 {
 330         struct hist_entry *pair = hist_entry__next_pair(he);
 331         const char *fmt = symbol_conf.field_sep ? "%s" : "%14s";
 332         char buf[32] = " ";
 333         s64 wdiff = 0;
 334
 335         if (pair) {
 336                 if (he->diff.computed)
 337                         wdiff = he->diff.wdiff;
 338                 else
 339                         wdiff = perf_diff__compute_wdiff(he, pair);
 340         }
 341
 342         if (wdiff != 0)
 343                 scnprintf(buf, sizeof(buf), "%14ld", wdiff);
 344
 345         return scnprintf(hpp->buf, hpp->size, fmt, buf);
 346 }
 347
 348 static int hpp__header_formula(struct perf_hpp_fmt *_fmt __maybe_unused,
 349                                struct perf_hpp *hpp)
 350 {
 351         const char *fmt = symbol_conf.field_sep ? "%s" : "%70s";
 352
 353         return scnprintf(hpp->buf, hpp->size, fmt, "Formula");
 354 }
 355
 356 static int hpp__width_formula(struct perf_hpp_fmt *fmt __maybe_unused,
 357                               struct perf_hpp *hpp __maybe_unused)
 358 {
 359         return 70;
 360 }
 361
 362 static int hpp__entry_formula(struct perf_hpp_fmt *_fmt __maybe_unused,
 363                               struct perf_hpp *hpp, struct hist_entry *he)
 364 {
 365         struct hist_entry *pair = hist_entry__next_pair(he);
 366         const char *fmt = symbol_conf.field_sep ? "%s" : "%-70s";
 367         char buf[96] = " ";
 368
 369         if (pair)
 370                 perf_diff__formula(he, pair, buf, sizeof(buf));
 371
 372         return scnprintf(hpp->buf, hpp->size, fmt, buf);
 373 }
 374
 375 #define HPP__COLOR_PRINT_FNS(_name)                     \
 376         {                                               \
 377                 .header = hpp__header_ ## _name,        \
 378                 .width  = hpp__width_ ## _name,         \
 379                 .color  = hpp__color_ ## _name,         \
 380                 .entry  = hpp__entry_ ## _name          \
 381         }
 382
 383 #define HPP__PRINT_FNS(_name)                           \
 384         {                                               \
 385                 .header = hpp__header_ ## _name,        \
 386                 .width  = hpp__width_ ## _name,         \
 387                 .entry  = hpp__entry_ ## _name          \
 388         }
 389
 390 struct perf_hpp_fmt perf_hpp__format[] = {
 391         HPP__COLOR_PRINT_FNS(baseline),
 392         HPP__COLOR_PRINT_FNS(overhead),
 393         HPP__COLOR_PRINT_FNS(overhead_sys),
 394         HPP__COLOR_PRINT_FNS(overhead_us),
 395         HPP__COLOR_PRINT_FNS(overhead_guest_sys),
 396         HPP__COLOR_PRINT_FNS(overhead_guest_us),
 397         HPP__PRINT_FNS(samples),
 398         HPP__PRINT_FNS(period),
 399         HPP__PRINT_FNS(period_baseline),
 400         HPP__PRINT_FNS(delta),
 401         HPP__PRINT_FNS(ratio),
 402         HPP__PRINT_FNS(wdiff),
 403         HPP__PRINT_FNS(formula)
 404 };
 405
 406 LIST_HEAD(perf_hpp__list);
 407
 408
 409 #undef HPP__COLOR_PRINT_FNS
 410 #undef HPP__PRINT_FNS
 411
 412 #undef HPP_PERCENT_FNS
 413 #undef HPP_RAW_FNS
 414
 415 #undef __HPP_HEADER_FN
 416 #undef __HPP_WIDTH_FN
 417 #undef __HPP_COLOR_PERCENT_FN
 418 #undef __HPP_ENTRY_PERCENT_FN
 419 #undef __HPP_ENTRY_RAW_FN
 420
 421
 422 void perf_hpp__init(void)
 423 {
 424         perf_hpp__column_enable(PERF_HPP__OVERHEAD);
 425
 426         if (symbol_conf.show_cpu_utilization) {
 427                 perf_hpp__column_enable(PERF_HPP__OVERHEAD_SYS);
 428                 perf_hpp__column_enable(PERF_HPP__OVERHEAD_US);
 429
 430                 if (perf_guest) {
 431                         perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_SYS);
 432                         perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_US);
 433                 }
 434         }
 435
 436         if (symbol_conf.show_nr_samples)
 437                 perf_hpp__column_enable(PERF_HPP__SAMPLES);
 438
 439         if (symbol_conf.show_total_period)
 440                 perf_hpp__column_enable(PERF_HPP__PERIOD);
 441 }
 442
 443 void perf_hpp__column_register(struct perf_hpp_fmt *format)
 444 {
 445         list_add_tail(&format->list, &perf_hpp__list);
 446 }
 447
 448 void perf_hpp__column_enable(unsigned col)
 449 {
 450         BUG_ON(col >= PERF_HPP__MAX_INDEX);
 451         perf_hpp__column_register(&perf_hpp__format[col]);
 452 }
 453
 454 static inline void advance_hpp(struct perf_hpp *hpp, int inc)
 455 {
 456         hpp->buf  += inc;
 457         hpp->size -= inc;
 458 }
 459
 460 int hist_entry__period_snprintf(struct perf_hpp *hpp, struct hist_entry *he,
 461                                 bool color)
 462 {
 463         const char *sep = symbol_conf.field_sep;
 464         struct perf_hpp_fmt *fmt;
 465         char *start = hpp->buf;
 466         int ret;
 467         bool first = true;
 468
 469         if (symbol_conf.exclude_other && !he->parent)
 470                 return 0;
 471
 472         perf_hpp__for_each_format(fmt) {
 473                 /*
 474                  * If there's no field_sep, we still need
 475                  * to display initial '  '.
 476                  */
 477                 if (!sep || !first) {
 478                         ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: "  ");
 479                         advance_hpp(hpp, ret);
 480                 } else
 481                         first = false;
 482
 483                 if (color && fmt->color)
 484                         ret = fmt->color(fmt, hpp, he);
 485                 else
 486                         ret = fmt->entry(fmt, hpp, he);
 487
 488                 advance_hpp(hpp, ret);
 489         }
 490
 491         return hpp->buf - start;
 492 }
 493
 494 int hist_entry__sort_snprintf(struct hist_entry *he, char *s, size_t size,
 495                               struct hists *hists)
 496 {
 497         const char *sep = symbol_conf.field_sep;
 498         struct sort_entry *se;
 499         int ret = 0;
 500
 501         list_for_each_entry(se, &hist_entry__sort_list, list) {
 502                 if (se->elide)
 503                         continue;
 504
 505                 ret += scnprintf(s + ret, size - ret, "%s", sep ?: "  ");
 506                 ret += se->se_snprintf(he, s + ret, size - ret,
 507                                        hists__col_len(hists, se->se_width_idx));
 508         }
 509
 510         return ret;
 511 }
 512
 513 /*
 514  * See hists__fprintf to match the column widths
 515  */
 516 unsigned int hists__sort_list_width(struct hists *hists)
 517 {
 518         struct perf_hpp_fmt *fmt;
 519         struct sort_entry *se;
 520         int i = 0, ret = 0;
 521         struct perf_hpp dummy_hpp = {
 522                 .ptr    = hists_to_evsel(hists),
 523         };
 524
 525         perf_hpp__for_each_format(fmt) {
 526                 if (i)
 527                         ret += 2;
 528
 529                 ret += fmt->width(fmt, &dummy_hpp);
 530         }
 531
 532         list_for_each_entry(se, &hist_entry__sort_list, list)
 533                 if (!se->elide)
 534                         ret += 2 + hists__col_len(hists, se->se_width_idx);
 535
 536         if (verbose) /* Addr + origin */
 537                 ret += 3 + BITS_PER_LONG / 4;
 538
 539         return ret;
 540 }