xref: /openbmc/linux/tools/perf/util/hist.h (revision e65e175b)
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 "evsel.h"
8 #include "color.h"
9 #include "events_stats.h"
10 #include "mutex.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_CODE_PAGE_SIZE,
57 	HISTC_MEM_DADDR_SYMBOL,
58 	HISTC_MEM_DADDR_DSO,
59 	HISTC_MEM_PHYS_DADDR,
60 	HISTC_MEM_DATA_PAGE_SIZE,
61 	HISTC_MEM_LOCKED,
62 	HISTC_MEM_TLB,
63 	HISTC_MEM_LVL,
64 	HISTC_MEM_SNOOP,
65 	HISTC_MEM_DCACHELINE,
66 	HISTC_MEM_IADDR_SYMBOL,
67 	HISTC_TRANSACTION,
68 	HISTC_CYCLES,
69 	HISTC_SRCLINE_FROM,
70 	HISTC_SRCLINE_TO,
71 	HISTC_TRACE,
72 	HISTC_SYM_SIZE,
73 	HISTC_DSO_SIZE,
74 	HISTC_SYMBOL_IPC,
75 	HISTC_MEM_BLOCKED,
76 	HISTC_LOCAL_INS_LAT,
77 	HISTC_GLOBAL_INS_LAT,
78 	HISTC_LOCAL_P_STAGE_CYC,
79 	HISTC_GLOBAL_P_STAGE_CYC,
80 	HISTC_ADDR_FROM,
81 	HISTC_ADDR_TO,
82 	HISTC_ADDR,
83 	HISTC_NR_COLS, /* Last entry */
84 };
85 
86 struct thread;
87 struct dso;
88 
89 struct hists {
90 	struct rb_root_cached	entries_in_array[2];
91 	struct rb_root_cached	*entries_in;
92 	struct rb_root_cached	entries;
93 	struct rb_root_cached	entries_collapsed;
94 	u64			nr_entries;
95 	u64			nr_non_filtered_entries;
96 	u64			callchain_period;
97 	u64			callchain_non_filtered_period;
98 	struct thread		*thread_filter;
99 	const struct dso	*dso_filter;
100 	const char		*uid_filter_str;
101 	const char		*symbol_filter_str;
102 	struct mutex		lock;
103 	struct hists_stats	stats;
104 	u64			event_stream;
105 	u16			col_len[HISTC_NR_COLS];
106 	bool			has_callchains;
107 	int			socket_filter;
108 	struct perf_hpp_list	*hpp_list;
109 	struct list_head	hpp_formats;
110 	int			nr_hpp_node;
111 };
112 
113 #define hists__has(__h, __f) (__h)->hpp_list->__f
114 
115 struct hist_entry_iter;
116 
117 struct hist_iter_ops {
118 	int (*prepare_entry)(struct hist_entry_iter *, struct addr_location *);
119 	int (*add_single_entry)(struct hist_entry_iter *, struct addr_location *);
120 	int (*next_entry)(struct hist_entry_iter *, struct addr_location *);
121 	int (*add_next_entry)(struct hist_entry_iter *, struct addr_location *);
122 	int (*finish_entry)(struct hist_entry_iter *, struct addr_location *);
123 };
124 
125 struct hist_entry_iter {
126 	int total;
127 	int curr;
128 
129 	bool hide_unresolved;
130 
131 	struct evsel *evsel;
132 	struct perf_sample *sample;
133 	struct hist_entry *he;
134 	struct symbol *parent;
135 	void *priv;
136 
137 	const struct hist_iter_ops *ops;
138 	/* user-defined callback function (optional) */
139 	int (*add_entry_cb)(struct hist_entry_iter *iter,
140 			    struct addr_location *al, bool single, void *arg);
141 };
142 
143 extern const struct hist_iter_ops hist_iter_normal;
144 extern const struct hist_iter_ops hist_iter_branch;
145 extern const struct hist_iter_ops hist_iter_mem;
146 extern const struct hist_iter_ops hist_iter_cumulative;
147 
148 struct hist_entry *hists__add_entry(struct hists *hists,
149 				    struct addr_location *al,
150 				    struct symbol *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_ops(struct hists *hists,
157 					struct hist_entry_ops *ops,
158 					struct addr_location *al,
159 					struct symbol *sym_parent,
160 					struct branch_info *bi,
161 					struct mem_info *mi,
162 					struct perf_sample *sample,
163 					bool sample_self);
164 
165 struct hist_entry *hists__add_entry_block(struct hists *hists,
166 					  struct addr_location *al,
167 					  struct block_info *bi);
168 
169 int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al,
170 			 int max_stack_depth, void *arg);
171 
172 struct perf_hpp;
173 struct perf_hpp_fmt;
174 
175 int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
176 int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
177 int hist_entry__transaction_len(void);
178 int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size,
179 			      struct hists *hists);
180 int hist_entry__snprintf_alignment(struct hist_entry *he, struct perf_hpp *hpp,
181 				   struct perf_hpp_fmt *fmt, int printed);
182 void hist_entry__delete(struct hist_entry *he);
183 
184 typedef int (*hists__resort_cb_t)(struct hist_entry *he, void *arg);
185 
186 void evsel__output_resort_cb(struct evsel *evsel, struct ui_progress *prog,
187 			     hists__resort_cb_t cb, void *cb_arg);
188 void evsel__output_resort(struct evsel *evsel, struct ui_progress *prog);
189 void hists__output_resort(struct hists *hists, struct ui_progress *prog);
190 void hists__output_resort_cb(struct hists *hists, struct ui_progress *prog,
191 			     hists__resort_cb_t cb);
192 int hists__collapse_resort(struct hists *hists, struct ui_progress *prog);
193 
194 void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);
195 void hists__delete_entries(struct hists *hists);
196 void hists__output_recalc_col_len(struct hists *hists, int max_rows);
197 
198 struct hist_entry *hists__get_entry(struct hists *hists, int idx);
199 
200 u64 hists__total_period(struct hists *hists);
201 void hists__reset_stats(struct hists *hists);
202 void hists__inc_stats(struct hists *hists, struct hist_entry *h);
203 void hists__inc_nr_events(struct hists *hists);
204 void hists__inc_nr_samples(struct hists *hists, bool filtered);
205 void hists__inc_nr_lost_samples(struct hists *hists, u32 lost);
206 
207 size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
208 		      int max_cols, float min_pcnt, FILE *fp,
209 		      bool ignore_callchains);
210 size_t evlist__fprintf_nr_events(struct evlist *evlist, FILE *fp,
211 				 bool skip_empty);
212 
213 void hists__filter_by_dso(struct hists *hists);
214 void hists__filter_by_thread(struct hists *hists);
215 void hists__filter_by_symbol(struct hists *hists);
216 void hists__filter_by_socket(struct hists *hists);
217 
218 static inline bool hists__has_filter(struct hists *hists)
219 {
220 	return hists->thread_filter || hists->dso_filter ||
221 		hists->symbol_filter_str || (hists->socket_filter > -1);
222 }
223 
224 u16 hists__col_len(struct hists *hists, enum hist_column col);
225 void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len);
226 bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len);
227 void hists__reset_col_len(struct hists *hists);
228 void hists__calc_col_len(struct hists *hists, struct hist_entry *he);
229 
230 void hists__match(struct hists *leader, struct hists *other);
231 int hists__link(struct hists *leader, struct hists *other);
232 int hists__unlink(struct hists *hists);
233 
234 struct hists_evsel {
235 	struct evsel evsel;
236 	struct hists	  hists;
237 };
238 
239 static inline struct evsel *hists_to_evsel(struct hists *hists)
240 {
241 	struct hists_evsel *hevsel = container_of(hists, struct hists_evsel, hists);
242 	return &hevsel->evsel;
243 }
244 
245 static inline struct hists *evsel__hists(struct evsel *evsel)
246 {
247 	struct hists_evsel *hevsel = (struct hists_evsel *)evsel;
248 	return &hevsel->hists;
249 }
250 
251 static __pure inline bool hists__has_callchains(struct hists *hists)
252 {
253 	return hists->has_callchains;
254 }
255 
256 int hists__init(void);
257 int __hists__init(struct hists *hists, struct perf_hpp_list *hpp_list);
258 
259 struct rb_root_cached *hists__get_rotate_entries_in(struct hists *hists);
260 
261 struct perf_hpp {
262 	char *buf;
263 	size_t size;
264 	const char *sep;
265 	void *ptr;
266 	bool skip;
267 };
268 
269 struct perf_hpp_fmt {
270 	const char *name;
271 	int (*header)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
272 		      struct hists *hists, int line, int *span);
273 	int (*width)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
274 		     struct hists *hists);
275 	void (*init)(struct perf_hpp_fmt *fmt, struct hist_entry *he);
276 	int (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
277 		     struct hist_entry *he);
278 	int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
279 		     struct hist_entry *he);
280 	int64_t (*cmp)(struct perf_hpp_fmt *fmt,
281 		       struct hist_entry *a, struct hist_entry *b);
282 	int64_t (*collapse)(struct perf_hpp_fmt *fmt,
283 			    struct hist_entry *a, struct hist_entry *b);
284 	int64_t (*sort)(struct perf_hpp_fmt *fmt,
285 			struct hist_entry *a, struct hist_entry *b);
286 	bool (*equal)(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b);
287 	void (*free)(struct perf_hpp_fmt *fmt);
288 
289 	struct list_head list;
290 	struct list_head sort_list;
291 	bool elide;
292 	int len;
293 	int user_len;
294 	int idx;
295 	int level;
296 };
297 
298 struct perf_hpp_list {
299 	struct list_head fields;
300 	struct list_head sorts;
301 
302 	int nr_header_lines;
303 	int need_collapse;
304 	int parent;
305 	int sym;
306 	int dso;
307 	int socket;
308 	int thread;
309 	int comm;
310 };
311 
312 extern struct perf_hpp_list perf_hpp_list;
313 
314 struct perf_hpp_list_node {
315 	struct list_head	list;
316 	struct perf_hpp_list	hpp;
317 	int			level;
318 	bool			skip;
319 };
320 
321 void perf_hpp_list__column_register(struct perf_hpp_list *list,
322 				    struct perf_hpp_fmt *format);
323 void perf_hpp_list__register_sort_field(struct perf_hpp_list *list,
324 					struct perf_hpp_fmt *format);
325 void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
326 				       struct perf_hpp_fmt *format);
327 
328 static inline void perf_hpp__column_register(struct perf_hpp_fmt *format)
329 {
330 	perf_hpp_list__column_register(&perf_hpp_list, format);
331 }
332 
333 static inline void perf_hpp__register_sort_field(struct perf_hpp_fmt *format)
334 {
335 	perf_hpp_list__register_sort_field(&perf_hpp_list, format);
336 }
337 
338 static inline void perf_hpp__prepend_sort_field(struct perf_hpp_fmt *format)
339 {
340 	perf_hpp_list__prepend_sort_field(&perf_hpp_list, format);
341 }
342 
343 #define perf_hpp_list__for_each_format(_list, format) \
344 	list_for_each_entry(format, &(_list)->fields, list)
345 
346 #define perf_hpp_list__for_each_format_safe(_list, format, tmp)	\
347 	list_for_each_entry_safe(format, tmp, &(_list)->fields, list)
348 
349 #define perf_hpp_list__for_each_sort_list(_list, format) \
350 	list_for_each_entry(format, &(_list)->sorts, sort_list)
351 
352 #define perf_hpp_list__for_each_sort_list_safe(_list, format, tmp)	\
353 	list_for_each_entry_safe(format, tmp, &(_list)->sorts, sort_list)
354 
355 #define hists__for_each_format(hists, format) \
356 	perf_hpp_list__for_each_format((hists)->hpp_list, format)
357 
358 #define hists__for_each_sort_list(hists, format) \
359 	perf_hpp_list__for_each_sort_list((hists)->hpp_list, format)
360 
361 extern struct perf_hpp_fmt perf_hpp__format[];
362 
363 enum {
364 	/* Matches perf_hpp__format array. */
365 	PERF_HPP__OVERHEAD,
366 	PERF_HPP__OVERHEAD_SYS,
367 	PERF_HPP__OVERHEAD_US,
368 	PERF_HPP__OVERHEAD_GUEST_SYS,
369 	PERF_HPP__OVERHEAD_GUEST_US,
370 	PERF_HPP__OVERHEAD_ACC,
371 	PERF_HPP__SAMPLES,
372 	PERF_HPP__PERIOD,
373 
374 	PERF_HPP__MAX_INDEX
375 };
376 
377 void perf_hpp__init(void);
378 void perf_hpp__cancel_cumulate(void);
379 void perf_hpp__setup_output_field(struct perf_hpp_list *list);
380 void perf_hpp__reset_output_field(struct perf_hpp_list *list);
381 void perf_hpp__append_sort_keys(struct perf_hpp_list *list);
382 int perf_hpp__setup_hists_formats(struct perf_hpp_list *list,
383 				  struct evlist *evlist);
384 
385 
386 bool perf_hpp__is_sort_entry(struct perf_hpp_fmt *format);
387 bool perf_hpp__is_dynamic_entry(struct perf_hpp_fmt *format);
388 bool perf_hpp__defined_dynamic_entry(struct perf_hpp_fmt *fmt, struct hists *hists);
389 bool perf_hpp__is_trace_entry(struct perf_hpp_fmt *fmt);
390 bool perf_hpp__is_srcline_entry(struct perf_hpp_fmt *fmt);
391 bool perf_hpp__is_srcfile_entry(struct perf_hpp_fmt *fmt);
392 bool perf_hpp__is_thread_entry(struct perf_hpp_fmt *fmt);
393 bool perf_hpp__is_comm_entry(struct perf_hpp_fmt *fmt);
394 bool perf_hpp__is_dso_entry(struct perf_hpp_fmt *fmt);
395 bool perf_hpp__is_sym_entry(struct perf_hpp_fmt *fmt);
396 
397 struct perf_hpp_fmt *perf_hpp_fmt__dup(struct perf_hpp_fmt *fmt);
398 
399 int hist_entry__filter(struct hist_entry *he, int type, const void *arg);
400 
401 static inline bool perf_hpp__should_skip(struct perf_hpp_fmt *format,
402 					 struct hists *hists)
403 {
404 	if (format->elide)
405 		return true;
406 
407 	if (perf_hpp__is_dynamic_entry(format) &&
408 	    !perf_hpp__defined_dynamic_entry(format, hists))
409 		return true;
410 
411 	return false;
412 }
413 
414 void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists);
415 void perf_hpp__reset_sort_width(struct perf_hpp_fmt *fmt, struct hists *hists);
416 void perf_hpp__set_user_width(const char *width_list_str);
417 void hists__reset_column_width(struct hists *hists);
418 
419 typedef u64 (*hpp_field_fn)(struct hist_entry *he);
420 typedef int (*hpp_callback_fn)(struct perf_hpp *hpp, bool front);
421 typedef int (*hpp_snprint_fn)(struct perf_hpp *hpp, const char *fmt, ...);
422 
423 int hpp__fmt(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
424 	     struct hist_entry *he, hpp_field_fn get_field,
425 	     const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent);
426 int hpp__fmt_acc(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
427 		 struct hist_entry *he, hpp_field_fn get_field,
428 		 const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent);
429 
430 static inline void advance_hpp(struct perf_hpp *hpp, int inc)
431 {
432 	hpp->buf  += inc;
433 	hpp->size -= inc;
434 }
435 
436 static inline size_t perf_hpp__use_color(void)
437 {
438 	return !symbol_conf.field_sep;
439 }
440 
441 static inline size_t perf_hpp__color_overhead(void)
442 {
443 	return perf_hpp__use_color() ?
444 	       (COLOR_MAXLEN + sizeof(PERF_COLOR_RESET)) * PERF_HPP__MAX_INDEX
445 	       : 0;
446 }
447 
448 struct evlist;
449 
450 struct hist_browser_timer {
451 	void (*timer)(void *arg);
452 	void *arg;
453 	int refresh;
454 };
455 
456 struct annotation_options;
457 struct res_sample;
458 
459 enum rstype {
460 	A_NORMAL,
461 	A_ASM,
462 	A_SOURCE
463 };
464 
465 struct block_hist;
466 
467 #ifdef HAVE_SLANG_SUPPORT
468 #include "../ui/keysyms.h"
469 void attr_to_script(char *buf, struct perf_event_attr *attr);
470 
471 int map_symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel,
472 			     struct hist_browser_timer *hbt,
473 			     struct annotation_options *annotation_opts);
474 
475 int hist_entry__tui_annotate(struct hist_entry *he, struct evsel *evsel,
476 			     struct hist_browser_timer *hbt,
477 			     struct annotation_options *annotation_opts);
478 
479 int evlist__tui_browse_hists(struct evlist *evlist, const char *help, struct hist_browser_timer *hbt,
480 			     float min_pcnt, struct perf_env *env, bool warn_lost_event,
481 			     struct annotation_options *annotation_options);
482 
483 int script_browse(const char *script_opt, struct evsel *evsel);
484 
485 void run_script(char *cmd);
486 int res_sample_browse(struct res_sample *res_samples, int num_res,
487 		      struct evsel *evsel, enum rstype rstype);
488 void res_sample_init(void);
489 
490 int block_hists_tui_browse(struct block_hist *bh, struct evsel *evsel,
491 			   float min_percent, struct perf_env *env,
492 			   struct annotation_options *annotation_opts);
493 #else
494 static inline
495 int evlist__tui_browse_hists(struct evlist *evlist __maybe_unused,
496 			     const char *help __maybe_unused,
497 			     struct hist_browser_timer *hbt __maybe_unused,
498 			     float min_pcnt __maybe_unused,
499 			     struct perf_env *env __maybe_unused,
500 			     bool warn_lost_event __maybe_unused,
501 			     struct annotation_options *annotation_options __maybe_unused)
502 {
503 	return 0;
504 }
505 static inline int map_symbol__tui_annotate(struct map_symbol *ms __maybe_unused,
506 					   struct evsel *evsel __maybe_unused,
507 					   struct hist_browser_timer *hbt __maybe_unused,
508 					   struct annotation_options *annotation_options __maybe_unused)
509 {
510 	return 0;
511 }
512 
513 static inline int hist_entry__tui_annotate(struct hist_entry *he __maybe_unused,
514 					   struct evsel *evsel __maybe_unused,
515 					   struct hist_browser_timer *hbt __maybe_unused,
516 					   struct annotation_options *annotation_opts __maybe_unused)
517 {
518 	return 0;
519 }
520 
521 static inline int script_browse(const char *script_opt __maybe_unused,
522 				struct evsel *evsel __maybe_unused)
523 {
524 	return 0;
525 }
526 
527 static inline int res_sample_browse(struct res_sample *res_samples __maybe_unused,
528 				    int num_res __maybe_unused,
529 				    struct evsel *evsel __maybe_unused,
530 				    enum rstype rstype __maybe_unused)
531 {
532 	return 0;
533 }
534 
535 static inline void res_sample_init(void) {}
536 
537 static inline int block_hists_tui_browse(struct block_hist *bh __maybe_unused,
538 					 struct evsel *evsel __maybe_unused,
539 					 float min_percent __maybe_unused,
540 					 struct perf_env *env __maybe_unused,
541 					 struct annotation_options *annotation_opts __maybe_unused)
542 {
543 	return 0;
544 }
545 
546 #define K_LEFT  -1000
547 #define K_RIGHT -2000
548 #define K_SWITCH_INPUT_DATA -3000
549 #define K_RELOAD -4000
550 #endif
551 
552 unsigned int hists__sort_list_width(struct hists *hists);
553 unsigned int hists__overhead_width(struct hists *hists);
554 
555 void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
556 			  struct perf_sample *sample, bool nonany_branch_mode,
557 			  u64 *total_cycles);
558 
559 struct option;
560 int parse_filter_percentage(const struct option *opt, const char *arg, int unset);
561 int perf_hist_config(const char *var, const char *value);
562 
563 void perf_hpp_list__init(struct perf_hpp_list *list);
564 
565 enum hierarchy_move_dir {
566 	HMD_NORMAL,
567 	HMD_FORCE_SIBLING,
568 	HMD_FORCE_CHILD,
569 };
570 
571 struct rb_node *rb_hierarchy_last(struct rb_node *node);
572 struct rb_node *__rb_hierarchy_next(struct rb_node *node,
573 				    enum hierarchy_move_dir hmd);
574 struct rb_node *rb_hierarchy_prev(struct rb_node *node);
575 
576 static inline struct rb_node *rb_hierarchy_next(struct rb_node *node)
577 {
578 	return __rb_hierarchy_next(node, HMD_NORMAL);
579 }
580 
581 #define HIERARCHY_INDENT  3
582 
583 bool hist_entry__has_hierarchy_children(struct hist_entry *he, float limit);
584 int hpp_color_scnprintf(struct perf_hpp *hpp, const char *fmt, ...);
585 int __hpp__slsmg_color_printf(struct perf_hpp *hpp, const char *fmt, ...);
586 int __hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp,
587 			   struct perf_hpp_list *hpp_list);
588 int hists__fprintf_headers(struct hists *hists, FILE *fp);
589 int __hists__scnprintf_title(struct hists *hists, char *bf, size_t size, bool show_freq);
590 
591 static inline int hists__scnprintf_title(struct hists *hists, char *bf, size_t size)
592 {
593 	return __hists__scnprintf_title(hists, bf, size, true);
594 }
595 
596 #endif	/* __PERF_HIST_H */
597