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