xref: /openbmc/linux/tools/perf/util/hist.h (revision 7b7dfdd2)
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 "header.h"
8 #include "color.h"
9 #include "ui/progress.h"
10 
11 extern struct callchain_param callchain_param;
12 
13 struct hist_entry;
14 struct addr_location;
15 struct symbol;
16 
17 enum hist_filter {
18 	HIST_FILTER__DSO,
19 	HIST_FILTER__THREAD,
20 	HIST_FILTER__PARENT,
21 	HIST_FILTER__SYMBOL,
22 	HIST_FILTER__GUEST,
23 	HIST_FILTER__HOST,
24 };
25 
26 /*
27  * The kernel collects the number of events it couldn't send in a stretch and
28  * when possible sends this number in a PERF_RECORD_LOST event. The number of
29  * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
30  * total_lost tells exactly how many events the kernel in fact lost, i.e. it is
31  * the sum of all struct lost_event.lost fields reported.
32  *
33  * The total_period is needed because by default auto-freq is used, so
34  * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
35  * the total number of low level events, it is necessary to to sum all struct
36  * sample_event.period and stash the result in total_period.
37  */
38 struct events_stats {
39 	u64 total_period;
40 	u64 total_non_filtered_period;
41 	u64 total_lost;
42 	u64 total_invalid_chains;
43 	u32 nr_events[PERF_RECORD_HEADER_MAX];
44 	u32 nr_non_filtered_samples;
45 	u32 nr_lost_warned;
46 	u32 nr_unknown_events;
47 	u32 nr_invalid_chains;
48 	u32 nr_unknown_id;
49 	u32 nr_unprocessable_samples;
50 };
51 
52 enum hist_column {
53 	HISTC_SYMBOL,
54 	HISTC_DSO,
55 	HISTC_THREAD,
56 	HISTC_COMM,
57 	HISTC_PARENT,
58 	HISTC_CPU,
59 	HISTC_SRCLINE,
60 	HISTC_MISPREDICT,
61 	HISTC_IN_TX,
62 	HISTC_ABORT,
63 	HISTC_SYMBOL_FROM,
64 	HISTC_SYMBOL_TO,
65 	HISTC_DSO_FROM,
66 	HISTC_DSO_TO,
67 	HISTC_LOCAL_WEIGHT,
68 	HISTC_GLOBAL_WEIGHT,
69 	HISTC_MEM_DADDR_SYMBOL,
70 	HISTC_MEM_DADDR_DSO,
71 	HISTC_MEM_LOCKED,
72 	HISTC_MEM_TLB,
73 	HISTC_MEM_LVL,
74 	HISTC_MEM_SNOOP,
75 	HISTC_TRANSACTION,
76 	HISTC_NR_COLS, /* Last entry */
77 };
78 
79 struct thread;
80 struct dso;
81 
82 struct hists {
83 	struct rb_root		entries_in_array[2];
84 	struct rb_root		*entries_in;
85 	struct rb_root		entries;
86 	struct rb_root		entries_collapsed;
87 	u64			nr_entries;
88 	u64			nr_non_filtered_entries;
89 	const 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 };
98 
99 struct hist_entry_iter;
100 
101 struct hist_iter_ops {
102 	int (*prepare_entry)(struct hist_entry_iter *, struct addr_location *);
103 	int (*add_single_entry)(struct hist_entry_iter *, struct addr_location *);
104 	int (*next_entry)(struct hist_entry_iter *, struct addr_location *);
105 	int (*add_next_entry)(struct hist_entry_iter *, struct addr_location *);
106 	int (*finish_entry)(struct hist_entry_iter *, struct addr_location *);
107 };
108 
109 struct hist_entry_iter {
110 	int total;
111 	int curr;
112 
113 	bool hide_unresolved;
114 
115 	struct perf_evsel *evsel;
116 	struct perf_sample *sample;
117 	struct hist_entry *he;
118 	struct symbol *parent;
119 	void *priv;
120 
121 	const struct hist_iter_ops *ops;
122 	/* user-defined callback function (optional) */
123 	int (*add_entry_cb)(struct hist_entry_iter *iter,
124 			    struct addr_location *al, bool single, void *arg);
125 };
126 
127 extern const struct hist_iter_ops hist_iter_normal;
128 extern const struct hist_iter_ops hist_iter_branch;
129 extern const struct hist_iter_ops hist_iter_mem;
130 extern const struct hist_iter_ops hist_iter_cumulative;
131 
132 struct hist_entry *__hists__add_entry(struct hists *hists,
133 				      struct addr_location *al,
134 				      struct symbol *parent,
135 				      struct branch_info *bi,
136 				      struct mem_info *mi, u64 period,
137 				      u64 weight, u64 transaction,
138 				      bool sample_self);
139 int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al,
140 			 struct perf_evsel *evsel, struct perf_sample *sample,
141 			 int max_stack_depth, void *arg);
142 
143 int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
144 int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
145 int hist_entry__transaction_len(void);
146 int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size,
147 			      struct hists *hists);
148 void hist_entry__free(struct hist_entry *);
149 
150 void hists__output_resort(struct hists *hists);
151 void hists__collapse_resort(struct hists *hists, struct ui_progress *prog);
152 
153 void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);
154 void hists__output_recalc_col_len(struct hists *hists, int max_rows);
155 
156 u64 hists__total_period(struct hists *hists);
157 void hists__reset_stats(struct hists *hists);
158 void hists__inc_stats(struct hists *hists, struct hist_entry *h);
159 void hists__inc_nr_events(struct hists *hists, u32 type);
160 void hists__inc_nr_samples(struct hists *hists, bool filtered);
161 void events_stats__inc(struct events_stats *stats, u32 type);
162 size_t events_stats__fprintf(struct events_stats *stats, FILE *fp);
163 
164 size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
165 		      int max_cols, float min_pcnt, FILE *fp);
166 
167 void hists__filter_by_dso(struct hists *hists);
168 void hists__filter_by_thread(struct hists *hists);
169 void hists__filter_by_symbol(struct hists *hists);
170 
171 static inline bool hists__has_filter(struct hists *hists)
172 {
173 	return hists->thread_filter || hists->dso_filter ||
174 		hists->symbol_filter_str;
175 }
176 
177 u16 hists__col_len(struct hists *hists, enum hist_column col);
178 void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len);
179 bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len);
180 void hists__reset_col_len(struct hists *hists);
181 void hists__calc_col_len(struct hists *hists, struct hist_entry *he);
182 
183 void hists__match(struct hists *leader, struct hists *other);
184 int hists__link(struct hists *leader, struct hists *other);
185 
186 struct perf_hpp {
187 	char *buf;
188 	size_t size;
189 	const char *sep;
190 	void *ptr;
191 };
192 
193 struct perf_hpp_fmt {
194 	int (*header)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
195 		      struct perf_evsel *evsel);
196 	int (*width)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
197 		     struct perf_evsel *evsel);
198 	int (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
199 		     struct hist_entry *he);
200 	int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
201 		     struct hist_entry *he);
202 	int64_t (*cmp)(struct hist_entry *a, struct hist_entry *b);
203 	int64_t (*collapse)(struct hist_entry *a, struct hist_entry *b);
204 	int64_t (*sort)(struct hist_entry *a, struct hist_entry *b);
205 
206 	struct list_head list;
207 	struct list_head sort_list;
208 	bool elide;
209 };
210 
211 extern struct list_head perf_hpp__list;
212 extern struct list_head perf_hpp__sort_list;
213 
214 #define perf_hpp__for_each_format(format) \
215 	list_for_each_entry(format, &perf_hpp__list, list)
216 
217 #define perf_hpp__for_each_format_safe(format, tmp)	\
218 	list_for_each_entry_safe(format, tmp, &perf_hpp__list, list)
219 
220 #define perf_hpp__for_each_sort_list(format) \
221 	list_for_each_entry(format, &perf_hpp__sort_list, sort_list)
222 
223 #define perf_hpp__for_each_sort_list_safe(format, tmp)	\
224 	list_for_each_entry_safe(format, tmp, &perf_hpp__sort_list, sort_list)
225 
226 extern struct perf_hpp_fmt perf_hpp__format[];
227 
228 enum {
229 	/* Matches perf_hpp__format array. */
230 	PERF_HPP__OVERHEAD,
231 	PERF_HPP__OVERHEAD_SYS,
232 	PERF_HPP__OVERHEAD_US,
233 	PERF_HPP__OVERHEAD_GUEST_SYS,
234 	PERF_HPP__OVERHEAD_GUEST_US,
235 	PERF_HPP__OVERHEAD_ACC,
236 	PERF_HPP__SAMPLES,
237 	PERF_HPP__PERIOD,
238 
239 	PERF_HPP__MAX_INDEX
240 };
241 
242 void perf_hpp__init(void);
243 void perf_hpp__column_register(struct perf_hpp_fmt *format);
244 void perf_hpp__column_unregister(struct perf_hpp_fmt *format);
245 void perf_hpp__column_enable(unsigned col);
246 void perf_hpp__column_disable(unsigned col);
247 void perf_hpp__cancel_cumulate(void);
248 
249 void perf_hpp__register_sort_field(struct perf_hpp_fmt *format);
250 void perf_hpp__setup_output_field(void);
251 void perf_hpp__reset_output_field(void);
252 void perf_hpp__append_sort_keys(void);
253 
254 bool perf_hpp__is_sort_entry(struct perf_hpp_fmt *format);
255 bool perf_hpp__same_sort_entry(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b);
256 
257 static inline bool perf_hpp__should_skip(struct perf_hpp_fmt *format)
258 {
259 	return format->elide;
260 }
261 
262 void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists);
263 
264 typedef u64 (*hpp_field_fn)(struct hist_entry *he);
265 typedef int (*hpp_callback_fn)(struct perf_hpp *hpp, bool front);
266 typedef int (*hpp_snprint_fn)(struct perf_hpp *hpp, const char *fmt, ...);
267 
268 int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
269 	       hpp_field_fn get_field, const char *fmt,
270 	       hpp_snprint_fn print_fn, bool fmt_percent);
271 int __hpp__fmt_acc(struct perf_hpp *hpp, struct hist_entry *he,
272 		   hpp_field_fn get_field, const char *fmt,
273 		   hpp_snprint_fn print_fn, bool fmt_percent);
274 
275 static inline void advance_hpp(struct perf_hpp *hpp, int inc)
276 {
277 	hpp->buf  += inc;
278 	hpp->size -= inc;
279 }
280 
281 static inline size_t perf_hpp__use_color(void)
282 {
283 	return !symbol_conf.field_sep;
284 }
285 
286 static inline size_t perf_hpp__color_overhead(void)
287 {
288 	return perf_hpp__use_color() ?
289 	       (COLOR_MAXLEN + sizeof(PERF_COLOR_RESET)) * PERF_HPP__MAX_INDEX
290 	       : 0;
291 }
292 
293 struct perf_evlist;
294 
295 struct hist_browser_timer {
296 	void (*timer)(void *arg);
297 	void *arg;
298 	int refresh;
299 };
300 
301 #ifdef HAVE_SLANG_SUPPORT
302 #include "../ui/keysyms.h"
303 int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
304 			     struct hist_browser_timer *hbt);
305 
306 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
307 				  struct hist_browser_timer *hbt,
308 				  float min_pcnt,
309 				  struct perf_session_env *env);
310 int script_browse(const char *script_opt);
311 #else
312 static inline
313 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
314 				  const char *help __maybe_unused,
315 				  struct hist_browser_timer *hbt __maybe_unused,
316 				  float min_pcnt __maybe_unused,
317 				  struct perf_session_env *env __maybe_unused)
318 {
319 	return 0;
320 }
321 
322 static inline int hist_entry__tui_annotate(struct hist_entry *he __maybe_unused,
323 					   struct perf_evsel *evsel __maybe_unused,
324 					   struct hist_browser_timer *hbt __maybe_unused)
325 {
326 	return 0;
327 }
328 
329 static inline int script_browse(const char *script_opt __maybe_unused)
330 {
331 	return 0;
332 }
333 
334 #define K_LEFT  -1000
335 #define K_RIGHT -2000
336 #define K_SWITCH_INPUT_DATA -3000
337 #endif
338 
339 unsigned int hists__sort_list_width(struct hists *hists);
340 
341 struct option;
342 int parse_filter_percentage(const struct option *opt __maybe_unused,
343 			    const char *arg, int unset __maybe_unused);
344 int perf_hist_config(const char *var, const char *value);
345 
346 #endif	/* __PERF_HIST_H */
347