xref: /openbmc/linux/tools/perf/util/hist.h (revision d2999e1b)
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_MEM_DCACHELINE,
76 	HISTC_TRANSACTION,
77 	HISTC_NR_COLS, /* Last entry */
78 };
79 
80 struct thread;
81 struct dso;
82 
83 struct hists {
84 	struct rb_root		entries_in_array[2];
85 	struct rb_root		*entries_in;
86 	struct rb_root		entries;
87 	struct rb_root		entries_collapsed;
88 	u64			nr_entries;
89 	u64			nr_non_filtered_entries;
90 	const struct thread	*thread_filter;
91 	const struct dso	*dso_filter;
92 	const char		*uid_filter_str;
93 	const char		*symbol_filter_str;
94 	pthread_mutex_t		lock;
95 	struct events_stats	stats;
96 	u64			event_stream;
97 	u16			col_len[HISTC_NR_COLS];
98 };
99 
100 struct hist_entry_iter;
101 
102 struct hist_iter_ops {
103 	int (*prepare_entry)(struct hist_entry_iter *, struct addr_location *);
104 	int (*add_single_entry)(struct hist_entry_iter *, struct addr_location *);
105 	int (*next_entry)(struct hist_entry_iter *, struct addr_location *);
106 	int (*add_next_entry)(struct hist_entry_iter *, struct addr_location *);
107 	int (*finish_entry)(struct hist_entry_iter *, struct addr_location *);
108 };
109 
110 struct hist_entry_iter {
111 	int total;
112 	int curr;
113 
114 	bool hide_unresolved;
115 
116 	struct perf_evsel *evsel;
117 	struct perf_sample *sample;
118 	struct hist_entry *he;
119 	struct symbol *parent;
120 	void *priv;
121 
122 	const struct hist_iter_ops *ops;
123 	/* user-defined callback function (optional) */
124 	int (*add_entry_cb)(struct hist_entry_iter *iter,
125 			    struct addr_location *al, bool single, void *arg);
126 };
127 
128 extern const struct hist_iter_ops hist_iter_normal;
129 extern const struct hist_iter_ops hist_iter_branch;
130 extern const struct hist_iter_ops hist_iter_mem;
131 extern const struct hist_iter_ops hist_iter_cumulative;
132 
133 struct hist_entry *__hists__add_entry(struct hists *hists,
134 				      struct addr_location *al,
135 				      struct symbol *parent,
136 				      struct branch_info *bi,
137 				      struct mem_info *mi, u64 period,
138 				      u64 weight, u64 transaction,
139 				      bool sample_self);
140 int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al,
141 			 struct perf_evsel *evsel, struct perf_sample *sample,
142 			 int max_stack_depth, void *arg);
143 
144 int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
145 int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
146 int hist_entry__transaction_len(void);
147 int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size,
148 			      struct hists *hists);
149 void hist_entry__free(struct hist_entry *);
150 
151 void hists__output_resort(struct hists *hists);
152 void hists__collapse_resort(struct hists *hists, struct ui_progress *prog);
153 
154 void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);
155 void hists__output_recalc_col_len(struct hists *hists, int max_rows);
156 
157 u64 hists__total_period(struct hists *hists);
158 void hists__reset_stats(struct hists *hists);
159 void hists__inc_stats(struct hists *hists, struct hist_entry *h);
160 void hists__inc_nr_events(struct hists *hists, u32 type);
161 void hists__inc_nr_samples(struct hists *hists, bool filtered);
162 void events_stats__inc(struct events_stats *stats, u32 type);
163 size_t events_stats__fprintf(struct events_stats *stats, FILE *fp);
164 
165 size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
166 		      int max_cols, float min_pcnt, FILE *fp);
167 
168 void hists__filter_by_dso(struct hists *hists);
169 void hists__filter_by_thread(struct hists *hists);
170 void hists__filter_by_symbol(struct hists *hists);
171 
172 static inline bool hists__has_filter(struct hists *hists)
173 {
174 	return hists->thread_filter || hists->dso_filter ||
175 		hists->symbol_filter_str;
176 }
177 
178 u16 hists__col_len(struct hists *hists, enum hist_column col);
179 void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len);
180 bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len);
181 void hists__reset_col_len(struct hists *hists);
182 void hists__calc_col_len(struct hists *hists, struct hist_entry *he);
183 
184 void hists__match(struct hists *leader, struct hists *other);
185 int hists__link(struct hists *leader, struct hists *other);
186 
187 struct perf_hpp {
188 	char *buf;
189 	size_t size;
190 	const char *sep;
191 	void *ptr;
192 };
193 
194 struct perf_hpp_fmt {
195 	int (*header)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
196 		      struct perf_evsel *evsel);
197 	int (*width)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
198 		     struct perf_evsel *evsel);
199 	int (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
200 		     struct hist_entry *he);
201 	int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
202 		     struct hist_entry *he);
203 	int64_t (*cmp)(struct hist_entry *a, struct hist_entry *b);
204 	int64_t (*collapse)(struct hist_entry *a, struct hist_entry *b);
205 	int64_t (*sort)(struct hist_entry *a, struct hist_entry *b);
206 
207 	struct list_head list;
208 	struct list_head sort_list;
209 	bool elide;
210 };
211 
212 extern struct list_head perf_hpp__list;
213 extern struct list_head perf_hpp__sort_list;
214 
215 #define perf_hpp__for_each_format(format) \
216 	list_for_each_entry(format, &perf_hpp__list, list)
217 
218 #define perf_hpp__for_each_format_safe(format, tmp)	\
219 	list_for_each_entry_safe(format, tmp, &perf_hpp__list, list)
220 
221 #define perf_hpp__for_each_sort_list(format) \
222 	list_for_each_entry(format, &perf_hpp__sort_list, sort_list)
223 
224 #define perf_hpp__for_each_sort_list_safe(format, tmp)	\
225 	list_for_each_entry_safe(format, tmp, &perf_hpp__sort_list, sort_list)
226 
227 extern struct perf_hpp_fmt perf_hpp__format[];
228 
229 enum {
230 	/* Matches perf_hpp__format array. */
231 	PERF_HPP__OVERHEAD,
232 	PERF_HPP__OVERHEAD_SYS,
233 	PERF_HPP__OVERHEAD_US,
234 	PERF_HPP__OVERHEAD_GUEST_SYS,
235 	PERF_HPP__OVERHEAD_GUEST_US,
236 	PERF_HPP__OVERHEAD_ACC,
237 	PERF_HPP__SAMPLES,
238 	PERF_HPP__PERIOD,
239 
240 	PERF_HPP__MAX_INDEX
241 };
242 
243 void perf_hpp__init(void);
244 void perf_hpp__column_register(struct perf_hpp_fmt *format);
245 void perf_hpp__column_unregister(struct perf_hpp_fmt *format);
246 void perf_hpp__column_enable(unsigned col);
247 void perf_hpp__column_disable(unsigned col);
248 void perf_hpp__cancel_cumulate(void);
249 
250 void perf_hpp__register_sort_field(struct perf_hpp_fmt *format);
251 void perf_hpp__setup_output_field(void);
252 void perf_hpp__reset_output_field(void);
253 void perf_hpp__append_sort_keys(void);
254 
255 bool perf_hpp__is_sort_entry(struct perf_hpp_fmt *format);
256 bool perf_hpp__same_sort_entry(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b);
257 
258 static inline bool perf_hpp__should_skip(struct perf_hpp_fmt *format)
259 {
260 	return format->elide;
261 }
262 
263 void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists);
264 
265 typedef u64 (*hpp_field_fn)(struct hist_entry *he);
266 typedef int (*hpp_callback_fn)(struct perf_hpp *hpp, bool front);
267 typedef int (*hpp_snprint_fn)(struct perf_hpp *hpp, const char *fmt, ...);
268 
269 int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
270 	       hpp_field_fn get_field, const char *fmt,
271 	       hpp_snprint_fn print_fn, bool fmt_percent);
272 int __hpp__fmt_acc(struct perf_hpp *hpp, struct hist_entry *he,
273 		   hpp_field_fn get_field, const char *fmt,
274 		   hpp_snprint_fn print_fn, bool fmt_percent);
275 
276 static inline void advance_hpp(struct perf_hpp *hpp, int inc)
277 {
278 	hpp->buf  += inc;
279 	hpp->size -= inc;
280 }
281 
282 static inline size_t perf_hpp__use_color(void)
283 {
284 	return !symbol_conf.field_sep;
285 }
286 
287 static inline size_t perf_hpp__color_overhead(void)
288 {
289 	return perf_hpp__use_color() ?
290 	       (COLOR_MAXLEN + sizeof(PERF_COLOR_RESET)) * PERF_HPP__MAX_INDEX
291 	       : 0;
292 }
293 
294 struct perf_evlist;
295 
296 struct hist_browser_timer {
297 	void (*timer)(void *arg);
298 	void *arg;
299 	int refresh;
300 };
301 
302 #ifdef HAVE_SLANG_SUPPORT
303 #include "../ui/keysyms.h"
304 int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
305 			     struct hist_browser_timer *hbt);
306 
307 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
308 				  struct hist_browser_timer *hbt,
309 				  float min_pcnt,
310 				  struct perf_session_env *env);
311 int script_browse(const char *script_opt);
312 #else
313 static inline
314 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
315 				  const char *help __maybe_unused,
316 				  struct hist_browser_timer *hbt __maybe_unused,
317 				  float min_pcnt __maybe_unused,
318 				  struct perf_session_env *env __maybe_unused)
319 {
320 	return 0;
321 }
322 
323 static inline int hist_entry__tui_annotate(struct hist_entry *he __maybe_unused,
324 					   struct perf_evsel *evsel __maybe_unused,
325 					   struct hist_browser_timer *hbt __maybe_unused)
326 {
327 	return 0;
328 }
329 
330 static inline int script_browse(const char *script_opt __maybe_unused)
331 {
332 	return 0;
333 }
334 
335 #define K_LEFT  -1000
336 #define K_RIGHT -2000
337 #define K_SWITCH_INPUT_DATA -3000
338 #endif
339 
340 unsigned int hists__sort_list_width(struct hists *hists);
341 
342 struct option;
343 int parse_filter_percentage(const struct option *opt __maybe_unused,
344 			    const char *arg, int unset __maybe_unused);
345 int perf_hist_config(const char *var, const char *value);
346 
347 #endif	/* __PERF_HIST_H */
348