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v4.6
  1#ifndef __PERF_HIST_H
  2#define __PERF_HIST_H
  3
  4#include <linux/types.h>
  5#include <pthread.h>
  6#include "callchain.h"
  7#include "evsel.h"
  8#include "header.h"
  9#include "color.h"
 10#include "ui/progress.h"
 11
 12struct hist_entry;
 13struct addr_location;
 14struct symbol;
 15
 16enum hist_filter {
 17	HIST_FILTER__DSO,
 18	HIST_FILTER__THREAD,
 19	HIST_FILTER__PARENT,
 20	HIST_FILTER__SYMBOL,
 21	HIST_FILTER__GUEST,
 22	HIST_FILTER__HOST,
 23	HIST_FILTER__SOCKET,
 
 
 
 
 
 
 
 
 
 
 
 
 24};
 25
 26enum hist_column {
 27	HISTC_SYMBOL,
 28	HISTC_DSO,
 29	HISTC_THREAD,
 30	HISTC_COMM,
 31	HISTC_PARENT,
 32	HISTC_CPU,
 33	HISTC_SOCKET,
 34	HISTC_SRCLINE,
 35	HISTC_SRCFILE,
 36	HISTC_MISPREDICT,
 37	HISTC_IN_TX,
 38	HISTC_ABORT,
 39	HISTC_SYMBOL_FROM,
 40	HISTC_SYMBOL_TO,
 41	HISTC_DSO_FROM,
 42	HISTC_DSO_TO,
 43	HISTC_LOCAL_WEIGHT,
 44	HISTC_GLOBAL_WEIGHT,
 45	HISTC_MEM_DADDR_SYMBOL,
 46	HISTC_MEM_DADDR_DSO,
 47	HISTC_MEM_LOCKED,
 48	HISTC_MEM_TLB,
 49	HISTC_MEM_LVL,
 50	HISTC_MEM_SNOOP,
 51	HISTC_MEM_DCACHELINE,
 52	HISTC_MEM_IADDR_SYMBOL,
 53	HISTC_TRANSACTION,
 54	HISTC_CYCLES,
 55	HISTC_TRACE,
 56	HISTC_NR_COLS, /* Last entry */
 57};
 58
 59struct thread;
 60struct dso;
 61
 62struct hists {
 63	struct rb_root		entries_in_array[2];
 64	struct rb_root		*entries_in;
 65	struct rb_root		entries;
 66	struct rb_root		entries_collapsed;
 67	u64			nr_entries;
 68	u64			nr_non_filtered_entries;
 69	u64			callchain_period;
 70	u64			callchain_non_filtered_period;
 71	struct thread		*thread_filter;
 72	const struct dso	*dso_filter;
 73	const char		*uid_filter_str;
 74	const char		*symbol_filter_str;
 75	pthread_mutex_t		lock;
 76	struct events_stats	stats;
 77	u64			event_stream;
 78	u16			col_len[HISTC_NR_COLS];
 79	int			socket_filter;
 80	struct perf_hpp_list	*hpp_list;
 81	struct list_head	hpp_formats;
 82	int			nr_hpp_node;
 83};
 84
 85struct hist_entry_iter;
 86
 87struct hist_iter_ops {
 88	int (*prepare_entry)(struct hist_entry_iter *, struct addr_location *);
 89	int (*add_single_entry)(struct hist_entry_iter *, struct addr_location *);
 90	int (*next_entry)(struct hist_entry_iter *, struct addr_location *);
 91	int (*add_next_entry)(struct hist_entry_iter *, struct addr_location *);
 92	int (*finish_entry)(struct hist_entry_iter *, struct addr_location *);
 93};
 94
 95struct hist_entry_iter {
 96	int total;
 97	int curr;
 98
 99	bool hide_unresolved;
100	int max_stack;
101
102	struct perf_evsel *evsel;
103	struct perf_sample *sample;
104	struct hist_entry *he;
105	struct symbol *parent;
106	void *priv;
107
108	const struct hist_iter_ops *ops;
109	/* user-defined callback function (optional) */
110	int (*add_entry_cb)(struct hist_entry_iter *iter,
111			    struct addr_location *al, bool single, void *arg);
112};
113
114extern const struct hist_iter_ops hist_iter_normal;
115extern const struct hist_iter_ops hist_iter_branch;
116extern const struct hist_iter_ops hist_iter_mem;
117extern const struct hist_iter_ops hist_iter_cumulative;
118
119struct hist_entry *__hists__add_entry(struct hists *hists,
120				      struct addr_location *al,
121				      struct symbol *parent,
122				      struct branch_info *bi,
123				      struct mem_info *mi,
124				      struct perf_sample *sample,
125				      bool sample_self);
126int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al,
127			 int max_stack_depth, void *arg);
128
129struct perf_hpp;
130struct perf_hpp_fmt;
131
132int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
133int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
134int hist_entry__transaction_len(void);
135int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size,
136			      struct hists *hists);
137int hist_entry__snprintf_alignment(struct hist_entry *he, struct perf_hpp *hpp,
138				   struct perf_hpp_fmt *fmt, int printed);
139void hist_entry__delete(struct hist_entry *he);
140
141void perf_evsel__output_resort(struct perf_evsel *evsel, struct ui_progress *prog);
142void hists__output_resort(struct hists *hists, struct ui_progress *prog);
143int hists__collapse_resort(struct hists *hists, struct ui_progress *prog);
144
145void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);
146void hists__delete_entries(struct hists *hists);
147void hists__output_recalc_col_len(struct hists *hists, int max_rows);
148
149u64 hists__total_period(struct hists *hists);
150void hists__reset_stats(struct hists *hists);
151void hists__inc_stats(struct hists *hists, struct hist_entry *h);
152void hists__inc_nr_events(struct hists *hists, u32 type);
153void hists__inc_nr_samples(struct hists *hists, bool filtered);
154void events_stats__inc(struct events_stats *stats, u32 type);
155size_t events_stats__fprintf(struct events_stats *stats, FILE *fp);
156
157size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
158		      int max_cols, float min_pcnt, FILE *fp);
159size_t perf_evlist__fprintf_nr_events(struct perf_evlist *evlist, FILE *fp);
160
161void hists__filter_by_dso(struct hists *hists);
162void hists__filter_by_thread(struct hists *hists);
163void hists__filter_by_symbol(struct hists *hists);
164void hists__filter_by_socket(struct hists *hists);
165
166static inline bool hists__has_filter(struct hists *hists)
167{
168	return hists->thread_filter || hists->dso_filter ||
169		hists->symbol_filter_str || (hists->socket_filter > -1);
170}
171
172u16 hists__col_len(struct hists *hists, enum hist_column col);
173void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len);
174bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len);
175void hists__reset_col_len(struct hists *hists);
176void hists__calc_col_len(struct hists *hists, struct hist_entry *he);
177
178void hists__match(struct hists *leader, struct hists *other);
179int hists__link(struct hists *leader, struct hists *other);
180
181struct hists_evsel {
182	struct perf_evsel evsel;
183	struct hists	  hists;
184};
185
186static inline struct perf_evsel *hists_to_evsel(struct hists *hists)
187{
188	struct hists_evsel *hevsel = container_of(hists, struct hists_evsel, hists);
189	return &hevsel->evsel;
190}
191
192static inline struct hists *evsel__hists(struct perf_evsel *evsel)
193{
194	struct hists_evsel *hevsel = (struct hists_evsel *)evsel;
195	return &hevsel->hists;
196}
197
198int hists__init(void);
199int __hists__init(struct hists *hists, struct perf_hpp_list *hpp_list);
200
201struct rb_root *hists__get_rotate_entries_in(struct hists *hists);
202int hists__collapse_insert_entry(struct hists *hists,
203				  struct rb_root *root, struct hist_entry *he);
204
205struct perf_hpp {
206	char *buf;
207	size_t size;
208	const char *sep;
209	void *ptr;
210};
211
212struct perf_hpp_fmt {
213	const char *name;
214	int (*header)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
215		      struct perf_evsel *evsel);
216	int (*width)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
217		     struct perf_evsel *evsel);
218	int (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
219		     struct hist_entry *he);
220	int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
221		     struct hist_entry *he);
222	int64_t (*cmp)(struct perf_hpp_fmt *fmt,
223		       struct hist_entry *a, struct hist_entry *b);
224	int64_t (*collapse)(struct perf_hpp_fmt *fmt,
225			    struct hist_entry *a, struct hist_entry *b);
226	int64_t (*sort)(struct perf_hpp_fmt *fmt,
227			struct hist_entry *a, struct hist_entry *b);
228	bool (*equal)(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b);
229	void (*free)(struct perf_hpp_fmt *fmt);
230
231	struct list_head list;
232	struct list_head sort_list;
233	bool elide;
234	int len;
235	int user_len;
236	int idx;
237	int level;
238};
239
240struct perf_hpp_list {
241	struct list_head fields;
242	struct list_head sorts;
243};
244
245extern struct perf_hpp_list perf_hpp_list;
246
247struct perf_hpp_list_node {
248	struct list_head	list;
249	struct perf_hpp_list	hpp;
250	int			level;
251	bool			skip;
252};
253
254void perf_hpp_list__column_register(struct perf_hpp_list *list,
255				    struct perf_hpp_fmt *format);
256void perf_hpp_list__register_sort_field(struct perf_hpp_list *list,
257					struct perf_hpp_fmt *format);
258
259static inline void perf_hpp__column_register(struct perf_hpp_fmt *format)
260{
261	perf_hpp_list__column_register(&perf_hpp_list, format);
262}
263
264static inline void perf_hpp__register_sort_field(struct perf_hpp_fmt *format)
265{
266	perf_hpp_list__register_sort_field(&perf_hpp_list, format);
267}
268
269#define perf_hpp_list__for_each_format(_list, format) \
270	list_for_each_entry(format, &(_list)->fields, list)
271
272#define perf_hpp_list__for_each_format_safe(_list, format, tmp)	\
273	list_for_each_entry_safe(format, tmp, &(_list)->fields, list)
274
275#define perf_hpp_list__for_each_sort_list(_list, format) \
276	list_for_each_entry(format, &(_list)->sorts, sort_list)
277
278#define perf_hpp_list__for_each_sort_list_safe(_list, format, tmp)	\
279	list_for_each_entry_safe(format, tmp, &(_list)->sorts, sort_list)
280
281#define hists__for_each_format(hists, format) \
282	perf_hpp_list__for_each_format((hists)->hpp_list, fmt)
283
284#define hists__for_each_sort_list(hists, format) \
285	perf_hpp_list__for_each_sort_list((hists)->hpp_list, fmt)
286
287extern struct perf_hpp_fmt perf_hpp__format[];
288
289enum {
290	/* Matches perf_hpp__format array. */
291	PERF_HPP__OVERHEAD,
292	PERF_HPP__OVERHEAD_SYS,
293	PERF_HPP__OVERHEAD_US,
294	PERF_HPP__OVERHEAD_GUEST_SYS,
295	PERF_HPP__OVERHEAD_GUEST_US,
296	PERF_HPP__OVERHEAD_ACC,
297	PERF_HPP__SAMPLES,
298	PERF_HPP__PERIOD,
299
300	PERF_HPP__MAX_INDEX
301};
302
303void perf_hpp__init(void);
304void perf_hpp__column_unregister(struct perf_hpp_fmt *format);
305void perf_hpp__cancel_cumulate(void);
306void perf_hpp__setup_output_field(struct perf_hpp_list *list);
307void perf_hpp__reset_output_field(struct perf_hpp_list *list);
308void perf_hpp__append_sort_keys(struct perf_hpp_list *list);
309int perf_hpp__setup_hists_formats(struct perf_hpp_list *list,
310				  struct perf_evlist *evlist);
311
312
313bool perf_hpp__is_sort_entry(struct perf_hpp_fmt *format);
314bool perf_hpp__is_dynamic_entry(struct perf_hpp_fmt *format);
315bool perf_hpp__defined_dynamic_entry(struct perf_hpp_fmt *fmt, struct hists *hists);
316bool perf_hpp__is_trace_entry(struct perf_hpp_fmt *fmt);
317bool perf_hpp__is_srcline_entry(struct perf_hpp_fmt *fmt);
318bool perf_hpp__is_srcfile_entry(struct perf_hpp_fmt *fmt);
319bool perf_hpp__is_thread_entry(struct perf_hpp_fmt *fmt);
320bool perf_hpp__is_comm_entry(struct perf_hpp_fmt *fmt);
321bool perf_hpp__is_dso_entry(struct perf_hpp_fmt *fmt);
322bool perf_hpp__is_sym_entry(struct perf_hpp_fmt *fmt);
323
324struct perf_hpp_fmt *perf_hpp_fmt__dup(struct perf_hpp_fmt *fmt);
325
326int hist_entry__filter(struct hist_entry *he, int type, const void *arg);
327
328static inline bool perf_hpp__should_skip(struct perf_hpp_fmt *format,
329					 struct hists *hists)
330{
331	if (format->elide)
332		return true;
333
334	if (perf_hpp__is_dynamic_entry(format) &&
335	    !perf_hpp__defined_dynamic_entry(format, hists))
336		return true;
337
338	return false;
339}
340
341void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists);
342void perf_hpp__reset_sort_width(struct perf_hpp_fmt *fmt, struct hists *hists);
343void perf_hpp__set_user_width(const char *width_list_str);
344
345typedef u64 (*hpp_field_fn)(struct hist_entry *he);
346typedef int (*hpp_callback_fn)(struct perf_hpp *hpp, bool front);
347typedef int (*hpp_snprint_fn)(struct perf_hpp *hpp, const char *fmt, ...);
348
349int hpp__fmt(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
350	     struct hist_entry *he, hpp_field_fn get_field,
351	     const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent);
352int hpp__fmt_acc(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
353		 struct hist_entry *he, hpp_field_fn get_field,
354		 const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent);
355
356static inline void advance_hpp(struct perf_hpp *hpp, int inc)
357{
358	hpp->buf  += inc;
359	hpp->size -= inc;
360}
361
362static inline size_t perf_hpp__use_color(void)
363{
364	return !symbol_conf.field_sep;
365}
366
367static inline size_t perf_hpp__color_overhead(void)
368{
369	return perf_hpp__use_color() ?
370	       (COLOR_MAXLEN + sizeof(PERF_COLOR_RESET)) * PERF_HPP__MAX_INDEX
371	       : 0;
372}
373
374struct perf_evlist;
375
376struct hist_browser_timer {
377	void (*timer)(void *arg);
378	void *arg;
379	int refresh;
380};
381
382#ifdef HAVE_SLANG_SUPPORT
383#include "../ui/keysyms.h"
384int map_symbol__tui_annotate(struct map_symbol *ms, struct perf_evsel *evsel,
385			     struct hist_browser_timer *hbt);
386
387int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
388			     struct hist_browser_timer *hbt);
389
390int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
391				  struct hist_browser_timer *hbt,
392				  float min_pcnt,
393				  struct perf_env *env);
394int script_browse(const char *script_opt);
395#else
396static inline
397int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
398				  const char *help __maybe_unused,
399				  struct hist_browser_timer *hbt __maybe_unused,
400				  float min_pcnt __maybe_unused,
401				  struct perf_env *env __maybe_unused)
402{
403	return 0;
404}
405static inline int map_symbol__tui_annotate(struct map_symbol *ms __maybe_unused,
406					   struct perf_evsel *evsel __maybe_unused,
407					   struct hist_browser_timer *hbt __maybe_unused)
408{
409	return 0;
410}
411
412static inline int hist_entry__tui_annotate(struct hist_entry *he __maybe_unused,
413					   struct perf_evsel *evsel __maybe_unused,
414					   struct hist_browser_timer *hbt __maybe_unused)
415{
416	return 0;
417}
 
 
 
 
 
418
419static inline int script_browse(const char *script_opt __maybe_unused)
420{
421	return 0;
422}
423
424#define K_LEFT  -1000
425#define K_RIGHT -2000
426#define K_SWITCH_INPUT_DATA -3000
427#endif
428
429unsigned int hists__sort_list_width(struct hists *hists);
430unsigned int hists__overhead_width(struct hists *hists);
431
432void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
433			  struct perf_sample *sample, bool nonany_branch_mode);
434
435struct option;
436int parse_filter_percentage(const struct option *opt, const char *arg, int unset);
437int perf_hist_config(const char *var, const char *value);
438
439void perf_hpp_list__init(struct perf_hpp_list *list);
440
441enum hierarchy_move_dir {
442	HMD_NORMAL,
443	HMD_FORCE_SIBLING,
444	HMD_FORCE_CHILD,
445};
446
447struct rb_node *rb_hierarchy_last(struct rb_node *node);
448struct rb_node *__rb_hierarchy_next(struct rb_node *node,
449				    enum hierarchy_move_dir hmd);
450struct rb_node *rb_hierarchy_prev(struct rb_node *node);
451
452static inline struct rb_node *rb_hierarchy_next(struct rb_node *node)
453{
454	return __rb_hierarchy_next(node, HMD_NORMAL);
455}
456
457#define HIERARCHY_INDENT  3
458
459bool hist_entry__has_hierarchy_children(struct hist_entry *he, float limit);
460
461#endif	/* __PERF_HIST_H */
v3.1
  1#ifndef __PERF_HIST_H
  2#define __PERF_HIST_H
  3
  4#include <linux/types.h>
 
  5#include "callchain.h"
  6
  7extern struct callchain_param callchain_param;
 
 
  8
  9struct hist_entry;
 10struct addr_location;
 11struct symbol;
 12
 13/*
 14 * The kernel collects the number of events it couldn't send in a stretch and
 15 * when possible sends this number in a PERF_RECORD_LOST event. The number of
 16 * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
 17 * total_lost tells exactly how many events the kernel in fact lost, i.e. it is
 18 * the sum of all struct lost_event.lost fields reported.
 19 *
 20 * The total_period is needed because by default auto-freq is used, so
 21 * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
 22 * the total number of low level events, it is necessary to to sum all struct
 23 * sample_event.period and stash the result in total_period.
 24 */
 25struct events_stats {
 26	u64 total_period;
 27	u64 total_lost;
 28	u64 total_invalid_chains;
 29	u32 nr_events[PERF_RECORD_HEADER_MAX];
 30	u32 nr_unknown_events;
 31	u32 nr_invalid_chains;
 32	u32 nr_unknown_id;
 33};
 34
 35enum hist_column {
 36	HISTC_SYMBOL,
 37	HISTC_DSO,
 38	HISTC_THREAD,
 39	HISTC_COMM,
 40	HISTC_PARENT,
 41	HISTC_CPU,
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 42	HISTC_NR_COLS, /* Last entry */
 43};
 44
 
 
 
 45struct hists {
 
 
 46	struct rb_root		entries;
 
 47	u64			nr_entries;
 
 
 
 
 
 
 
 
 48	struct events_stats	stats;
 49	u64			event_stream;
 50	u16			col_len[HISTC_NR_COLS];
 51	/* Best would be to reuse the session callchain cursor */
 52	struct callchain_cursor	callchain_cursor;
 
 
 
 
 
 
 
 
 
 
 
 
 53};
 54
 55struct hist_entry *__hists__add_entry(struct hists *self,
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 56				      struct addr_location *al,
 57				      struct symbol *parent, u64 period);
 58extern int64_t hist_entry__cmp(struct hist_entry *, struct hist_entry *);
 59extern int64_t hist_entry__collapse(struct hist_entry *, struct hist_entry *);
 60int hist_entry__fprintf(struct hist_entry *self, struct hists *hists,
 61			struct hists *pair_hists, bool show_displacement,
 62			long displacement, FILE *fp, u64 total);
 63int hist_entry__snprintf(struct hist_entry *self, char *bf, size_t size,
 64			 struct hists *hists, struct hists *pair_hists,
 65			 bool show_displacement, long displacement,
 66			 bool color, u64 total);
 67void hist_entry__free(struct hist_entry *);
 68
 69void hists__output_resort(struct hists *self);
 70void hists__collapse_resort(struct hists *self);
 71
 72void hists__inc_nr_events(struct hists *self, u32 type);
 73size_t hists__fprintf_nr_events(struct hists *self, FILE *fp);
 74
 75size_t hists__fprintf(struct hists *self, struct hists *pair,
 76		      bool show_displacement, FILE *fp);
 77
 78int hist_entry__inc_addr_samples(struct hist_entry *self, int evidx, u64 addr);
 79int hist_entry__annotate(struct hist_entry *self, size_t privsize);
 80
 81void hists__filter_by_dso(struct hists *self, const struct dso *dso);
 82void hists__filter_by_thread(struct hists *self, const struct thread *thread);
 83
 84u16 hists__col_len(struct hists *self, enum hist_column col);
 85void hists__set_col_len(struct hists *self, enum hist_column col, u16 len);
 86bool hists__new_col_len(struct hists *self, enum hist_column col, u16 len);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 87
 88struct perf_evlist;
 89
 90#ifdef NO_NEWT_SUPPORT
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 91static inline
 92int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __used,
 93				  const char *help __used)
 
 
 
 
 
 
 
 
 
 94{
 95	return 0;
 96}
 97
 98static inline int hist_entry__tui_annotate(struct hist_entry *self __used,
 99					   int evidx __used)
 
100{
101	return 0;
102}
103#define KEY_LEFT -1
104#define KEY_RIGHT -2
105#else
106#include <newt.h>
107int hist_entry__tui_annotate(struct hist_entry *self, int evidx);
108
109#define KEY_LEFT NEWT_KEY_LEFT
110#define KEY_RIGHT NEWT_KEY_RIGHT
 
 
111
112int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help);
 
 
113#endif
114
115unsigned int hists__sort_list_width(struct hists *self);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
116
117#endif	/* __PERF_HIST_H */