tools/perf/util/hist.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __PERF_HIST_H
   3 #define __PERF_HIST_H
   4
   5 #include <linux/rbtree.h>
   6 #include <linux/types.h>
   7 #include <pthread.h>
   8 #include "evsel.h"
   9 #include "color.h"
  10 #include "events_stats.h"
  11
  12 struct hist_entry;
  13 struct hist_entry_ops;
  14 struct addr_location;
  15 struct map_symbol;
  16 struct mem_info;
  17 struct branch_info;
  18 struct branch_stack;
  19 struct block_info;
  20 struct symbol;
  21 struct ui_progress;
  22
  23 enum hist_filter {
  24         HIST_FILTER__DSO,
  25         HIST_FILTER__THREAD,
  26         HIST_FILTER__PARENT,
  27         HIST_FILTER__SYMBOL,
  28         HIST_FILTER__GUEST,
  29         HIST_FILTER__HOST,
  30         HIST_FILTER__SOCKET,
  31         HIST_FILTER__C2C,
  32 };
  33
  34 enum hist_column {
  35         HISTC_SYMBOL,
  36         HISTC_TIME,
  37         HISTC_DSO,
  38         HISTC_THREAD,
  39         HISTC_COMM,
  40         HISTC_CGROUP_ID,
  41         HISTC_CGROUP,
  42         HISTC_PARENT,
  43         HISTC_CPU,
  44         HISTC_SOCKET,
  45         HISTC_SRCLINE,
  46         HISTC_SRCFILE,
  47         HISTC_MISPREDICT,
  48         HISTC_IN_TX,
  49         HISTC_ABORT,
  50         HISTC_SYMBOL_FROM,
  51         HISTC_SYMBOL_TO,
  52         HISTC_DSO_FROM,
  53         HISTC_DSO_TO,
  54         HISTC_LOCAL_WEIGHT,
  55         HISTC_GLOBAL_WEIGHT,
  56         HISTC_MEM_DADDR_SYMBOL,
  57         HISTC_MEM_DADDR_DSO,
  58         HISTC_MEM_PHYS_DADDR,
  59         HISTC_MEM_DATA_PAGE_SIZE,
  60         HISTC_MEM_LOCKED,
  61         HISTC_MEM_TLB,
  62         HISTC_MEM_LVL,
  63         HISTC_MEM_SNOOP,
  64         HISTC_MEM_DCACHELINE,
  65         HISTC_MEM_IADDR_SYMBOL,
  66         HISTC_TRANSACTION,
  67         HISTC_CYCLES,
  68         HISTC_SRCLINE_FROM,
  69         HISTC_SRCLINE_TO,
  70         HISTC_TRACE,
  71         HISTC_SYM_SIZE,
  72         HISTC_DSO_SIZE,
  73         HISTC_SYMBOL_IPC,
  74         HISTC_NR_COLS, /* Last entry */
  75 };
  76
  77 struct thread;
  78 struct dso;
  79
  80 struct hists {
  81         struct rb_root_cached   entries_in_array[2];
  82         struct rb_root_cached   *entries_in;
  83         struct rb_root_cached   entries;
  84         struct rb_root_cached   entries_collapsed;
  85         u64                     nr_entries;
  86         u64                     nr_non_filtered_entries;
  87         u64                     callchain_period;
  88         u64                     callchain_non_filtered_period;
  89         struct thread           *thread_filter;
  90         const struct dso        *dso_filter;
  91         const char              *uid_filter_str;
  92         const char              *symbol_filter_str;
  93         pthread_mutex_t         lock;
  94         struct events_stats     stats;
  95         u64                     event_stream;
  96         u16                     col_len[HISTC_NR_COLS];
  97         bool                    has_callchains;
  98         int                     socket_filter;
  99         struct perf_hpp_list    *hpp_list;
 100         struct list_head        hpp_formats;
 101         int                     nr_hpp_node;
 102 };
 103
 104 #define hists__has(__h, __f) (__h)->hpp_list->__f
 105
 106 struct hist_entry_iter;
 107
 108 struct hist_iter_ops {
 109         int (*prepare_entry)(struct hist_entry_iter *, struct addr_location *);
 110         int (*add_single_entry)(struct hist_entry_iter *, struct addr_location *);
 111         int (*next_entry)(struct hist_entry_iter *, struct addr_location *);
 112         int (*add_next_entry)(struct hist_entry_iter *, struct addr_location *);
 113         int (*finish_entry)(struct hist_entry_iter *, struct addr_location *);
 114 };
 115
 116 struct hist_entry_iter {
 117         int total;
 118         int curr;
 119
 120         bool hide_unresolved;
 121
 122         struct evsel *evsel;
 123         struct perf_sample *sample;
 124         struct hist_entry *he;
 125         struct symbol *parent;
 126         void *priv;
 127
 128         const struct hist_iter_ops *ops;
 129         /* user-defined callback function (optional) */
 130         int (*add_entry_cb)(struct hist_entry_iter *iter,
 131                             struct addr_location *al, bool single, void *arg);
 132 };
 133
 134 extern const struct hist_iter_ops hist_iter_normal;
 135 extern const struct hist_iter_ops hist_iter_branch;
 136 extern const struct hist_iter_ops hist_iter_mem;
 137 extern const struct hist_iter_ops hist_iter_cumulative;
 138
 139 struct hist_entry *hists__add_entry(struct hists *hists,
 140                                     struct addr_location *al,
 141                                     struct symbol *parent,
 142                                     struct branch_info *bi,
 143                                     struct mem_info *mi,
 144                                     struct perf_sample *sample,
 145                                     bool sample_self);
 146
 147 struct hist_entry *hists__add_entry_ops(struct hists *hists,
 148                                         struct hist_entry_ops *ops,
 149                                         struct addr_location *al,
 150                                         struct symbol *sym_parent,
 151                                         struct branch_info *bi,
 152                                         struct mem_info *mi,
 153                                         struct perf_sample *sample,
 154                                         bool sample_self);
 155
 156 struct hist_entry *hists__add_entry_block(struct hists *hists,
 157                                           struct addr_location *al,
 158                                           struct block_info *bi);
 159
 160 int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al,
 161                          int max_stack_depth, void *arg);
 162
 163 struct perf_hpp;
 164 struct perf_hpp_fmt;
 165
 166 int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
 167 int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
 168 int hist_entry__transaction_len(void);
 169 int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size,
 170                               struct hists *hists);
 171 int hist_entry__snprintf_alignment(struct hist_entry *he, struct perf_hpp *hpp,
 172                                    struct perf_hpp_fmt *fmt, int printed);
 173 void hist_entry__delete(struct hist_entry *he);
 174
 175 typedef int (*hists__resort_cb_t)(struct hist_entry *he, void *arg);
 176
 177 void evsel__output_resort_cb(struct evsel *evsel, struct ui_progress *prog,
 178                              hists__resort_cb_t cb, void *cb_arg);
 179 void evsel__output_resort(struct evsel *evsel, struct ui_progress *prog);
 180 void hists__output_resort(struct hists *hists, struct ui_progress *prog);
 181 void hists__output_resort_cb(struct hists *hists, struct ui_progress *prog,
 182                              hists__resort_cb_t cb);
 183 int hists__collapse_resort(struct hists *hists, struct ui_progress *prog);
 184
 185 void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);
 186 void hists__delete_entries(struct hists *hists);
 187 void hists__output_recalc_col_len(struct hists *hists, int max_rows);
 188
 189 struct hist_entry *hists__get_entry(struct hists *hists, int idx);
 190
 191 u64 hists__total_period(struct hists *hists);
 192 void hists__reset_stats(struct hists *hists);
 193 void hists__inc_stats(struct hists *hists, struct hist_entry *h);
 194 void hists__inc_nr_events(struct hists *hists, u32 type);
 195 void hists__inc_nr_samples(struct hists *hists, bool filtered);
 196
 197 size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
 198                       int max_cols, float min_pcnt, FILE *fp,
 199                       bool ignore_callchains);
 200 size_t evlist__fprintf_nr_events(struct evlist *evlist, FILE *fp);
 201
 202 void hists__filter_by_dso(struct hists *hists);
 203 void hists__filter_by_thread(struct hists *hists);
 204 void hists__filter_by_symbol(struct hists *hists);
 205 void hists__filter_by_socket(struct hists *hists);
 206
 207 static inline bool hists__has_filter(struct hists *hists)
 208 {
 209         return hists->thread_filter || hists->dso_filter ||
 210                 hists->symbol_filter_str || (hists->socket_filter > -1);
 211 }
 212
 213 u16 hists__col_len(struct hists *hists, enum hist_column col);
 214 void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len);
 215 bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len);
 216 void hists__reset_col_len(struct hists *hists);
 217 void hists__calc_col_len(struct hists *hists, struct hist_entry *he);
 218
 219 void hists__match(struct hists *leader, struct hists *other);
 220 int hists__link(struct hists *leader, struct hists *other);
 221 int hists__unlink(struct hists *hists);
 222
 223 struct hists_evsel {
 224         struct evsel evsel;
 225         struct hists      hists;
 226 };
 227
 228 static inline struct evsel *hists_to_evsel(struct hists *hists)
 229 {
 230         struct hists_evsel *hevsel = container_of(hists, struct hists_evsel, hists);
 231         return &hevsel->evsel;
 232 }
 233
 234 static inline struct hists *evsel__hists(struct evsel *evsel)
 235 {
 236         struct hists_evsel *hevsel = (struct hists_evsel *)evsel;
 237         return &hevsel->hists;
 238 }
 239
 240 static __pure inline bool hists__has_callchains(struct hists *hists)
 241 {
 242         return hists->has_callchains;
 243 }
 244
 245 int hists__init(void);
 246 int __hists__init(struct hists *hists, struct perf_hpp_list *hpp_list);
 247
 248 struct rb_root_cached *hists__get_rotate_entries_in(struct hists *hists);
 249
 250 struct perf_hpp {
 251         char *buf;
 252         size_t size;
 253         const char *sep;
 254         void *ptr;
 255         bool skip;
 256 };
 257
 258 struct perf_hpp_fmt {
 259         const char *name;
 260         int (*header)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 261                       struct hists *hists, int line, int *span);
 262         int (*width)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 263                      struct hists *hists);
 264         int (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 265                      struct hist_entry *he);
 266         int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 267                      struct hist_entry *he);
 268         int64_t (*cmp)(struct perf_hpp_fmt *fmt,
 269                        struct hist_entry *a, struct hist_entry *b);
 270         int64_t (*collapse)(struct perf_hpp_fmt *fmt,
 271                             struct hist_entry *a, struct hist_entry *b);
 272         int64_t (*sort)(struct perf_hpp_fmt *fmt,
 273                         struct hist_entry *a, struct hist_entry *b);
 274         bool (*equal)(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b);
 275         void (*free)(struct perf_hpp_fmt *fmt);
 276
 277         struct list_head list;
 278         struct list_head sort_list;
 279         bool elide;
 280         int len;
 281         int user_len;
 282         int idx;
 283         int level;
 284 };
 285
 286 struct perf_hpp_list {
 287         struct list_head fields;
 288         struct list_head sorts;
 289
 290         int nr_header_lines;
 291         int need_collapse;
 292         int parent;
 293         int sym;
 294         int dso;
 295         int socket;
 296         int thread;
 297         int comm;
 298 };
 299
 300 extern struct perf_hpp_list perf_hpp_list;
 301
 302 struct perf_hpp_list_node {
 303         struct list_head        list;
 304         struct perf_hpp_list    hpp;
 305         int                     level;
 306         bool                    skip;
 307 };
 308
 309 void perf_hpp_list__column_register(struct perf_hpp_list *list,
 310                                     struct perf_hpp_fmt *format);
 311 void perf_hpp_list__register_sort_field(struct perf_hpp_list *list,
 312                                         struct perf_hpp_fmt *format);
 313 void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
 314                                        struct perf_hpp_fmt *format);
 315
 316 static inline void perf_hpp__column_register(struct perf_hpp_fmt *format)
 317 {
 318         perf_hpp_list__column_register(&perf_hpp_list, format);
 319 }
 320
 321 static inline void perf_hpp__register_sort_field(struct perf_hpp_fmt *format)
 322 {
 323         perf_hpp_list__register_sort_field(&perf_hpp_list, format);
 324 }
 325
 326 static inline void perf_hpp__prepend_sort_field(struct perf_hpp_fmt *format)
 327 {
 328         perf_hpp_list__prepend_sort_field(&perf_hpp_list, format);
 329 }
 330
 331 #define perf_hpp_list__for_each_format(_list, format) \
 332         list_for_each_entry(format, &(_list)->fields, list)
 333
 334 #define perf_hpp_list__for_each_format_safe(_list, format, tmp) \
 335         list_for_each_entry_safe(format, tmp, &(_list)->fields, list)
 336
 337 #define perf_hpp_list__for_each_sort_list(_list, format) \
 338         list_for_each_entry(format, &(_list)->sorts, sort_list)
 339
 340 #define perf_hpp_list__for_each_sort_list_safe(_list, format, tmp)      \
 341         list_for_each_entry_safe(format, tmp, &(_list)->sorts, sort_list)
 342
 343 #define hists__for_each_format(hists, format) \
 344         perf_hpp_list__for_each_format((hists)->hpp_list, format)
 345
 346 #define hists__for_each_sort_list(hists, format) \
 347         perf_hpp_list__for_each_sort_list((hists)->hpp_list, format)
 348
 349 extern struct perf_hpp_fmt perf_hpp__format[];
 350
 351 enum {
 352         /* Matches perf_hpp__format array. */
 353         PERF_HPP__OVERHEAD,
 354         PERF_HPP__OVERHEAD_SYS,
 355         PERF_HPP__OVERHEAD_US,
 356         PERF_HPP__OVERHEAD_GUEST_SYS,
 357         PERF_HPP__OVERHEAD_GUEST_US,
 358         PERF_HPP__OVERHEAD_ACC,
 359         PERF_HPP__SAMPLES,
 360         PERF_HPP__PERIOD,
 361
 362         PERF_HPP__MAX_INDEX
 363 };
 364
 365 void perf_hpp__init(void);
 366 void perf_hpp__column_unregister(struct perf_hpp_fmt *format);
 367 void perf_hpp__cancel_cumulate(void);
 368 void perf_hpp__setup_output_field(struct perf_hpp_list *list);
 369 void perf_hpp__reset_output_field(struct perf_hpp_list *list);
 370 void perf_hpp__append_sort_keys(struct perf_hpp_list *list);
 371 int perf_hpp__setup_hists_formats(struct perf_hpp_list *list,
 372                                   struct evlist *evlist);
 373
 374
 375 bool perf_hpp__is_sort_entry(struct perf_hpp_fmt *format);
 376 bool perf_hpp__is_dynamic_entry(struct perf_hpp_fmt *format);
 377 bool perf_hpp__defined_dynamic_entry(struct perf_hpp_fmt *fmt, struct hists *hists);
 378 bool perf_hpp__is_trace_entry(struct perf_hpp_fmt *fmt);
 379 bool perf_hpp__is_srcline_entry(struct perf_hpp_fmt *fmt);
 380 bool perf_hpp__is_srcfile_entry(struct perf_hpp_fmt *fmt);
 381 bool perf_hpp__is_thread_entry(struct perf_hpp_fmt *fmt);
 382 bool perf_hpp__is_comm_entry(struct perf_hpp_fmt *fmt);
 383 bool perf_hpp__is_dso_entry(struct perf_hpp_fmt *fmt);
 384 bool perf_hpp__is_sym_entry(struct perf_hpp_fmt *fmt);
 385
 386 struct perf_hpp_fmt *perf_hpp_fmt__dup(struct perf_hpp_fmt *fmt);
 387
 388 int hist_entry__filter(struct hist_entry *he, int type, const void *arg);
 389
 390 static inline bool perf_hpp__should_skip(struct perf_hpp_fmt *format,
 391                                          struct hists *hists)
 392 {
 393         if (format->elide)
 394                 return true;
 395
 396         if (perf_hpp__is_dynamic_entry(format) &&
 397             !perf_hpp__defined_dynamic_entry(format, hists))
 398                 return true;
 399
 400         return false;
 401 }
 402
 403 void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists);
 404 void perf_hpp__reset_sort_width(struct perf_hpp_fmt *fmt, struct hists *hists);
 405 void perf_hpp__set_user_width(const char *width_list_str);
 406 void hists__reset_column_width(struct hists *hists);
 407
 408 typedef u64 (*hpp_field_fn)(struct hist_entry *he);
 409 typedef int (*hpp_callback_fn)(struct perf_hpp *hpp, bool front);
 410 typedef int (*hpp_snprint_fn)(struct perf_hpp *hpp, const char *fmt, ...);
 411
 412 int hpp__fmt(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 413              struct hist_entry *he, hpp_field_fn get_field,
 414              const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent);
 415 int hpp__fmt_acc(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 416                  struct hist_entry *he, hpp_field_fn get_field,
 417                  const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent);
 418
 419 static inline void advance_hpp(struct perf_hpp *hpp, int inc)
 420 {
 421         hpp->buf  += inc;
 422         hpp->size -= inc;
 423 }
 424
 425 static inline size_t perf_hpp__use_color(void)
 426 {
 427         return !symbol_conf.field_sep;
 428 }
 429
 430 static inline size_t perf_hpp__color_overhead(void)
 431 {
 432         return perf_hpp__use_color() ?
 433                (COLOR_MAXLEN + sizeof(PERF_COLOR_RESET)) * PERF_HPP__MAX_INDEX
 434                : 0;
 435 }
 436
 437 struct evlist;
 438
 439 struct hist_browser_timer {
 440         void (*timer)(void *arg);
 441         void *arg;
 442         int refresh;
 443 };
 444
 445 struct annotation_options;
 446 struct res_sample;
 447
 448 enum rstype {
 449         A_NORMAL,
 450         A_ASM,
 451         A_SOURCE
 452 };
 453
 454 struct block_hist;
 455
 456 #ifdef HAVE_SLANG_SUPPORT
 457 #include "../ui/keysyms.h"
 458 void attr_to_script(char *buf, struct perf_event_attr *attr);
 459
 460 int map_symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel,
 461                              struct hist_browser_timer *hbt,
 462                              struct annotation_options *annotation_opts);
 463
 464 int hist_entry__tui_annotate(struct hist_entry *he, struct evsel *evsel,
 465                              struct hist_browser_timer *hbt,
 466                              struct annotation_options *annotation_opts);
 467
 468 int evlist__tui_browse_hists(struct evlist *evlist, const char *help, struct hist_browser_timer *hbt,
 469                              float min_pcnt, struct perf_env *env, bool warn_lost_event,
 470                              struct annotation_options *annotation_options);
 471
 472 int script_browse(const char *script_opt, struct evsel *evsel);
 473
 474 void run_script(char *cmd);
 475 int res_sample_browse(struct res_sample *res_samples, int num_res,
 476                       struct evsel *evsel, enum rstype rstype);
 477 void res_sample_init(void);
 478
 479 int block_hists_tui_browse(struct block_hist *bh, struct evsel *evsel,
 480                            float min_percent, struct perf_env *env,
 481                            struct annotation_options *annotation_opts);
 482 #else
 483 static inline
 484 int evlist__tui_browse_hists(struct evlist *evlist __maybe_unused,
 485                              const char *help __maybe_unused,
 486                              struct hist_browser_timer *hbt __maybe_unused,
 487                              float min_pcnt __maybe_unused,
 488                              struct perf_env *env __maybe_unused,
 489                              bool warn_lost_event __maybe_unused,
 490                              struct annotation_options *annotation_options __maybe_unused)
 491 {
 492         return 0;
 493 }
 494 static inline int map_symbol__tui_annotate(struct map_symbol *ms __maybe_unused,
 495                                            struct evsel *evsel __maybe_unused,
 496                                            struct hist_browser_timer *hbt __maybe_unused,
 497                                            struct annotation_options *annotation_options __maybe_unused)
 498 {
 499         return 0;
 500 }
 501
 502 static inline int hist_entry__tui_annotate(struct hist_entry *he __maybe_unused,
 503                                            struct evsel *evsel __maybe_unused,
 504                                            struct hist_browser_timer *hbt __maybe_unused,
 505                                            struct annotation_options *annotation_opts __maybe_unused)
 506 {
 507         return 0;
 508 }
 509
 510 static inline int script_browse(const char *script_opt __maybe_unused,
 511                                 struct evsel *evsel __maybe_unused)
 512 {
 513         return 0;
 514 }
 515
 516 static inline int res_sample_browse(struct res_sample *res_samples __maybe_unused,
 517                                     int num_res __maybe_unused,
 518                                     struct evsel *evsel __maybe_unused,
 519                                     enum rstype rstype __maybe_unused)
 520 {
 521         return 0;
 522 }
 523
 524 static inline void res_sample_init(void) {}
 525
 526 static inline int block_hists_tui_browse(struct block_hist *bh __maybe_unused,
 527                                          struct evsel *evsel __maybe_unused,
 528                                          float min_percent __maybe_unused,
 529                                          struct perf_env *env __maybe_unused,
 530                                          struct annotation_options *annotation_opts __maybe_unused)
 531 {
 532         return 0;
 533 }
 534
 535 #define K_LEFT  -1000
 536 #define K_RIGHT -2000
 537 #define K_SWITCH_INPUT_DATA -3000
 538 #define K_RELOAD -4000
 539 #endif
 540
 541 unsigned int hists__sort_list_width(struct hists *hists);
 542 unsigned int hists__overhead_width(struct hists *hists);
 543
 544 void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
 545                           struct perf_sample *sample, bool nonany_branch_mode,
 546                           u64 *total_cycles);
 547
 548 struct option;
 549 int parse_filter_percentage(const struct option *opt, const char *arg, int unset);
 550 int perf_hist_config(const char *var, const char *value);
 551
 552 void perf_hpp_list__init(struct perf_hpp_list *list);
 553
 554 enum hierarchy_move_dir {
 555         HMD_NORMAL,
 556         HMD_FORCE_SIBLING,
 557         HMD_FORCE_CHILD,
 558 };
 559
 560 struct rb_node *rb_hierarchy_last(struct rb_node *node);
 561 struct rb_node *__rb_hierarchy_next(struct rb_node *node,
 562                                     enum hierarchy_move_dir hmd);
 563 struct rb_node *rb_hierarchy_prev(struct rb_node *node);
 564
 565 static inline struct rb_node *rb_hierarchy_next(struct rb_node *node)
 566 {
 567         return __rb_hierarchy_next(node, HMD_NORMAL);
 568 }
 569
 570 #define HIERARCHY_INDENT  3
 571
 572 bool hist_entry__has_hierarchy_children(struct hist_entry *he, float limit);
 573 int hpp_color_scnprintf(struct perf_hpp *hpp, const char *fmt, ...);
 574 int __hpp__slsmg_color_printf(struct perf_hpp *hpp, const char *fmt, ...);
 575 int __hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp,
 576                            struct perf_hpp_list *hpp_list);
 577 int hists__fprintf_headers(struct hists *hists, FILE *fp);
 578 int __hists__scnprintf_title(struct hists *hists, char *bf, size_t size, bool show_freq);
 579
 580 static inline int hists__scnprintf_title(struct hists *hists, char *bf, size_t size)
 581 {
 582         return __hists__scnprintf_title(hists, bf, size, true);
 583 }
 584
 585 #endif  /* __PERF_HIST_H */