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 hists *hists = he->hists;
 182         return 100.0 * he->stat.period / hists->stats.total_period;
 183 }
 184
 185 static int hpp__color_baseline(struct perf_hpp_fmt *fmt __maybe_unused,
 186                                struct perf_hpp *hpp, struct hist_entry *he)
 187 {
 188         double percent = baseline_percent(he);
 189
 190         if (!he->dummy)
 191                 return percent_color_snprintf(hpp->buf, hpp->size,
 192                                               " %6.2f%%", percent);
 193         else
 194                 return scnprintf(hpp->buf, hpp->size, "        ");
 195 }
 196
 197 static int hpp__entry_baseline(struct perf_hpp_fmt *_fmt __maybe_unused,
 198                                struct perf_hpp *hpp, struct hist_entry *he)
 199 {
 200         double percent = baseline_percent(he);
 201         const char *fmt = symbol_conf.field_sep ? "%.2f" : " %6.2f%%";
 202
 203         if (!he->dummy)
 204                 return scnprintf(hpp->buf, hpp->size, fmt, percent);
 205         else
 206                 return scnprintf(hpp->buf, hpp->size, "            ");
 207 }
 208
 209 static int hpp__header_period_baseline(struct perf_hpp_fmt *_fmt __maybe_unused,
 210                                        struct perf_hpp *hpp)
 211 {
 212         const char *fmt = symbol_conf.field_sep ? "%s" : "%12s";
 213
 214         return scnprintf(hpp->buf, hpp->size, fmt, "Period Base");
 215 }
 216
 217 static int hpp__width_period_baseline(struct perf_hpp_fmt *fmt __maybe_unused,
 218                                       struct perf_hpp *hpp __maybe_unused)
 219 {
 220         return 12;
 221 }
 222
 223 static int hpp__entry_period_baseline(struct perf_hpp_fmt *_fmt __maybe_unused,
 224                                       struct perf_hpp *hpp, struct hist_entry *he)
 225 {
 226         struct hist_entry *pair = hist_entry__next_pair(he);
 227         u64 period = pair ? pair->stat.period : 0;
 228         const char *fmt = symbol_conf.field_sep ? "%" PRIu64 : "%12" PRIu64;
 229
 230         return scnprintf(hpp->buf, hpp->size, fmt, period);
 231 }
 232
 233 static int hpp__header_delta(struct perf_hpp_fmt *_fmt __maybe_unused,
 234                              struct perf_hpp *hpp)
 235 {
 236         const char *fmt = symbol_conf.field_sep ? "%s" : "%7s";
 237
 238         return scnprintf(hpp->buf, hpp->size, fmt, "Delta");
 239 }
 240
 241 static int hpp__width_delta(struct perf_hpp_fmt *fmt __maybe_unused,
 242                             struct perf_hpp *hpp __maybe_unused)
 243 {
 244         return 7;
 245 }
 246
 247 static int hpp__entry_delta(struct perf_hpp_fmt *_fmt __maybe_unused,
 248                             struct perf_hpp *hpp, struct hist_entry *he)
 249 {
 250         struct hist_entry *pair = hist_entry__next_pair(he);
 251         const char *fmt = symbol_conf.field_sep ? "%s" : "%7.7s";
 252         char buf[32] = " ";
 253         double diff = 0.0;
 254
 255         if (pair) {
 256                 if (he->diff.computed)
 257                         diff = he->diff.period_ratio_delta;
 258                 else
 259                         diff = perf_diff__compute_delta(he, pair);
 260         }
 261
 262         if (fabs(diff) >= 0.01)
 263                 scnprintf(buf, sizeof(buf), "%+4.2F%%", diff);
 264
 265         return scnprintf(hpp->buf, hpp->size, fmt, buf);
 266 }
 267
 268 static int hpp__header_ratio(struct perf_hpp_fmt *_fmt __maybe_unused,
 269                              struct perf_hpp *hpp)
 270 {
 271         const char *fmt = symbol_conf.field_sep ? "%s" : "%14s";
 272
 273         return scnprintf(hpp->buf, hpp->size, fmt, "Ratio");
 274 }
 275
 276 static int hpp__width_ratio(struct perf_hpp_fmt *fmt __maybe_unused,
 277                             struct perf_hpp *hpp __maybe_unused)
 278 {
 279         return 14;
 280 }
 281
 282 static int hpp__entry_ratio(struct perf_hpp_fmt *_fmt __maybe_unused,
 283                             struct perf_hpp *hpp, struct hist_entry *he)
 284 {
 285         struct hist_entry *pair = hist_entry__next_pair(he);
 286         const char *fmt = symbol_conf.field_sep ? "%s" : "%14s";
 287         char buf[32] = " ";
 288         double ratio = 0.0;
 289
 290         /* No point for ratio number if we are dummy.. */
 291         if (!he->dummy && pair) {
 292                 if (he->diff.computed)
 293                         ratio = he->diff.period_ratio;
 294                 else
 295                         ratio = perf_diff__compute_ratio(he, pair);
 296         }
 297
 298         if (ratio > 0.0)
 299                 scnprintf(buf, sizeof(buf), "%+14.6F", ratio);
 300
 301         return scnprintf(hpp->buf, hpp->size, fmt, buf);
 302 }
 303
 304 static int hpp__header_wdiff(struct perf_hpp_fmt *_fmt __maybe_unused,
 305                              struct perf_hpp *hpp)
 306 {
 307         const char *fmt = symbol_conf.field_sep ? "%s" : "%14s";
 308
 309         return scnprintf(hpp->buf, hpp->size, fmt, "Weighted diff");
 310 }
 311
 312 static int hpp__width_wdiff(struct perf_hpp_fmt *fmt __maybe_unused,
 313                             struct perf_hpp *hpp __maybe_unused)
 314 {
 315         return 14;
 316 }
 317
 318 static int hpp__entry_wdiff(struct perf_hpp_fmt *_fmt __maybe_unused,
 319                             struct perf_hpp *hpp, struct hist_entry *he)
 320 {
 321         struct hist_entry *pair = hist_entry__next_pair(he);
 322         const char *fmt = symbol_conf.field_sep ? "%s" : "%14s";
 323         char buf[32] = " ";
 324         s64 wdiff = 0;
 325
 326         /* No point for wdiff number if we are dummy.. */
 327         if (!he->dummy && pair) {
 328                 if (he->diff.computed)
 329                         wdiff = he->diff.wdiff;
 330                 else
 331                         wdiff = perf_diff__compute_wdiff(he, pair);
 332         }
 333
 334         if (wdiff != 0)
 335                 scnprintf(buf, sizeof(buf), "%14ld", wdiff);
 336
 337         return scnprintf(hpp->buf, hpp->size, fmt, buf);
 338 }
 339
 340 static int hpp__header_formula(struct perf_hpp_fmt *_fmt __maybe_unused,
 341                                struct perf_hpp *hpp)
 342 {
 343         const char *fmt = symbol_conf.field_sep ? "%s" : "%70s";
 344
 345         return scnprintf(hpp->buf, hpp->size, fmt, "Formula");
 346 }
 347
 348 static int hpp__width_formula(struct perf_hpp_fmt *fmt __maybe_unused,
 349                               struct perf_hpp *hpp __maybe_unused)
 350 {
 351         return 70;
 352 }
 353
 354 static int hpp__entry_formula(struct perf_hpp_fmt *_fmt __maybe_unused,
 355                               struct perf_hpp *hpp, struct hist_entry *he)
 356 {
 357         struct hist_entry *pair = hist_entry__next_pair(he);
 358         const char *fmt = symbol_conf.field_sep ? "%s" : "%-70s";
 359         char buf[96] = " ";
 360
 361         if (pair)
 362                 perf_diff__formula(he, pair, buf, sizeof(buf));
 363
 364         return scnprintf(hpp->buf, hpp->size, fmt, buf);
 365 }
 366
 367 #define HPP__COLOR_PRINT_FNS(_name)                     \
 368         {                                               \
 369                 .header = hpp__header_ ## _name,        \
 370                 .width  = hpp__width_ ## _name,         \
 371                 .color  = hpp__color_ ## _name,         \
 372                 .entry  = hpp__entry_ ## _name          \
 373         }
 374
 375 #define HPP__PRINT_FNS(_name)                           \
 376         {                                               \
 377                 .header = hpp__header_ ## _name,        \
 378                 .width  = hpp__width_ ## _name,         \
 379                 .entry  = hpp__entry_ ## _name          \
 380         }
 381
 382 struct perf_hpp_fmt perf_hpp__format[] = {
 383         HPP__COLOR_PRINT_FNS(baseline),
 384         HPP__COLOR_PRINT_FNS(overhead),
 385         HPP__COLOR_PRINT_FNS(overhead_sys),
 386         HPP__COLOR_PRINT_FNS(overhead_us),
 387         HPP__COLOR_PRINT_FNS(overhead_guest_sys),
 388         HPP__COLOR_PRINT_FNS(overhead_guest_us),
 389         HPP__PRINT_FNS(samples),
 390         HPP__PRINT_FNS(period),
 391         HPP__PRINT_FNS(period_baseline),
 392         HPP__PRINT_FNS(delta),
 393         HPP__PRINT_FNS(ratio),
 394         HPP__PRINT_FNS(wdiff),
 395         HPP__PRINT_FNS(formula)
 396 };
 397
 398 LIST_HEAD(perf_hpp__list);
 399
 400
 401 #undef HPP__COLOR_PRINT_FNS
 402 #undef HPP__PRINT_FNS
 403
 404 #undef HPP_PERCENT_FNS
 405 #undef HPP_RAW_FNS
 406
 407 #undef __HPP_HEADER_FN
 408 #undef __HPP_WIDTH_FN
 409 #undef __HPP_COLOR_PERCENT_FN
 410 #undef __HPP_ENTRY_PERCENT_FN
 411 #undef __HPP_ENTRY_RAW_FN
 412
 413
 414 void perf_hpp__init(void)
 415 {
 416         perf_hpp__column_enable(PERF_HPP__OVERHEAD);
 417
 418         if (symbol_conf.show_cpu_utilization) {
 419                 perf_hpp__column_enable(PERF_HPP__OVERHEAD_SYS);
 420                 perf_hpp__column_enable(PERF_HPP__OVERHEAD_US);
 421
 422                 if (perf_guest) {
 423                         perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_SYS);
 424                         perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_US);
 425                 }
 426         }
 427
 428         if (symbol_conf.show_nr_samples)
 429                 perf_hpp__column_enable(PERF_HPP__SAMPLES);
 430
 431         if (symbol_conf.show_total_period)
 432                 perf_hpp__column_enable(PERF_HPP__PERIOD);
 433 }
 434
 435 void perf_hpp__column_register(struct perf_hpp_fmt *format)
 436 {
 437         list_add_tail(&format->list, &perf_hpp__list);
 438 }
 439
 440 void perf_hpp__column_enable(unsigned col)
 441 {
 442         BUG_ON(col >= PERF_HPP__MAX_INDEX);
 443         perf_hpp__column_register(&perf_hpp__format[col]);
 444 }
 445
 446 static inline void advance_hpp(struct perf_hpp *hpp, int inc)
 447 {
 448         hpp->buf  += inc;
 449         hpp->size -= inc;
 450 }
 451
 452 int hist_entry__period_snprintf(struct perf_hpp *hpp, struct hist_entry *he,
 453                                 bool color)
 454 {
 455         const char *sep = symbol_conf.field_sep;
 456         struct perf_hpp_fmt *fmt;
 457         char *start = hpp->buf;
 458         int ret;
 459         bool first = true;
 460
 461         if (symbol_conf.exclude_other && !he->parent)
 462                 return 0;
 463
 464         perf_hpp__for_each_format(fmt) {
 465                 /*
 466                  * If there's no field_sep, we still need
 467                  * to display initial '  '.
 468                  */
 469                 if (!sep || !first) {
 470                         ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: "  ");
 471                         advance_hpp(hpp, ret);
 472                 } else
 473                         first = false;
 474
 475                 if (color && fmt->color)
 476                         ret = fmt->color(fmt, hpp, he);
 477                 else
 478                         ret = fmt->entry(fmt, hpp, he);
 479
 480                 advance_hpp(hpp, ret);
 481         }
 482
 483         return hpp->buf - start;
 484 }
 485
 486 int hist_entry__sort_snprintf(struct hist_entry *he, char *s, size_t size,
 487                               struct hists *hists)
 488 {
 489         const char *sep = symbol_conf.field_sep;
 490         struct sort_entry *se;
 491         int ret = 0;
 492
 493         list_for_each_entry(se, &hist_entry__sort_list, list) {
 494                 if (se->elide)
 495                         continue;
 496
 497                 ret += scnprintf(s + ret, size - ret, "%s", sep ?: "  ");
 498                 ret += se->se_snprintf(he, s + ret, size - ret,
 499                                        hists__col_len(hists, se->se_width_idx));
 500         }
 501
 502         return ret;
 503 }
 504
 505 /*
 506  * See hists__fprintf to match the column widths
 507  */
 508 unsigned int hists__sort_list_width(struct hists *hists)
 509 {
 510         struct perf_hpp_fmt *fmt;
 511         struct sort_entry *se;
 512         int i = 0, ret = 0;
 513         struct perf_hpp dummy_hpp = {
 514                 .ptr    = hists_to_evsel(hists),
 515         };
 516
 517         perf_hpp__for_each_format(fmt) {
 518                 if (i)
 519                         ret += 2;
 520
 521                 ret += fmt->width(fmt, &dummy_hpp);
 522         }
 523
 524         list_for_each_entry(se, &hist_entry__sort_list, list)
 525                 if (!se->elide)
 526                         ret += 2 + hists__col_len(hists, se->se_width_idx);
 527
 528         if (verbose) /* Addr + origin */
 529                 ret += 3 + BITS_PER_LONG / 4;
 530
 531         return ret;
 532 }