tools/perf/ui/hist.c

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