xref: /openbmc/linux/tools/perf/util/hist.h (revision 089a49b6)
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 
9 extern struct callchain_param callchain_param;
10 
11 struct hist_entry;
12 struct addr_location;
13 struct symbol;
14 
15 /*
16  * The kernel collects the number of events it couldn't send in a stretch and
17  * when possible sends this number in a PERF_RECORD_LOST event. The number of
18  * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
19  * total_lost tells exactly how many events the kernel in fact lost, i.e. it is
20  * the sum of all struct lost_event.lost fields reported.
21  *
22  * The total_period is needed because by default auto-freq is used, so
23  * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
24  * the total number of low level events, it is necessary to to sum all struct
25  * sample_event.period and stash the result in total_period.
26  */
27 struct events_stats {
28 	u64 total_period;
29 	u64 total_lost;
30 	u64 total_invalid_chains;
31 	u32 nr_events[PERF_RECORD_HEADER_MAX];
32 	u32 nr_lost_warned;
33 	u32 nr_unknown_events;
34 	u32 nr_invalid_chains;
35 	u32 nr_unknown_id;
36 	u32 nr_unprocessable_samples;
37 };
38 
39 enum hist_column {
40 	HISTC_SYMBOL,
41 	HISTC_DSO,
42 	HISTC_THREAD,
43 	HISTC_COMM,
44 	HISTC_PARENT,
45 	HISTC_CPU,
46 	HISTC_SRCLINE,
47 	HISTC_MISPREDICT,
48 	HISTC_SYMBOL_FROM,
49 	HISTC_SYMBOL_TO,
50 	HISTC_DSO_FROM,
51 	HISTC_DSO_TO,
52 	HISTC_LOCAL_WEIGHT,
53 	HISTC_GLOBAL_WEIGHT,
54 	HISTC_MEM_DADDR_SYMBOL,
55 	HISTC_MEM_DADDR_DSO,
56 	HISTC_MEM_LOCKED,
57 	HISTC_MEM_TLB,
58 	HISTC_MEM_LVL,
59 	HISTC_MEM_SNOOP,
60 	HISTC_NR_COLS, /* Last entry */
61 };
62 
63 struct thread;
64 struct dso;
65 
66 struct hists {
67 	struct rb_root		entries_in_array[2];
68 	struct rb_root		*entries_in;
69 	struct rb_root		entries;
70 	struct rb_root		entries_collapsed;
71 	u64			nr_entries;
72 	const struct thread	*thread_filter;
73 	const struct dso	*dso_filter;
74 	const char		*uid_filter_str;
75 	const char		*symbol_filter_str;
76 	pthread_mutex_t		lock;
77 	struct events_stats	stats;
78 	u64			event_stream;
79 	u16			col_len[HISTC_NR_COLS];
80 };
81 
82 struct hist_entry *__hists__add_entry(struct hists *self,
83 				      struct addr_location *al,
84 				      struct symbol *parent, u64 period,
85 				      u64 weight);
86 int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
87 int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
88 int hist_entry__sort_snprintf(struct hist_entry *self, char *bf, size_t size,
89 			      struct hists *hists);
90 void hist_entry__free(struct hist_entry *);
91 
92 struct hist_entry *__hists__add_branch_entry(struct hists *self,
93 					     struct addr_location *al,
94 					     struct symbol *sym_parent,
95 					     struct branch_info *bi,
96 					     u64 period,
97 					     u64 weight);
98 
99 struct hist_entry *__hists__add_mem_entry(struct hists *self,
100 					  struct addr_location *al,
101 					  struct symbol *sym_parent,
102 					  struct mem_info *mi,
103 					  u64 period,
104 					  u64 weight);
105 
106 void hists__output_resort(struct hists *self);
107 void hists__collapse_resort(struct hists *self);
108 
109 void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);
110 void hists__output_recalc_col_len(struct hists *hists, int max_rows);
111 
112 void hists__inc_nr_entries(struct hists *hists, struct hist_entry *h);
113 void hists__inc_nr_events(struct hists *self, u32 type);
114 void events_stats__inc(struct events_stats *stats, u32 type);
115 size_t events_stats__fprintf(struct events_stats *stats, FILE *fp);
116 
117 size_t hists__fprintf(struct hists *self, bool show_header, int max_rows,
118 		      int max_cols, float min_pcnt, FILE *fp);
119 
120 int hist_entry__inc_addr_samples(struct hist_entry *self, int evidx, u64 addr);
121 int hist_entry__annotate(struct hist_entry *self, size_t privsize);
122 
123 void hists__filter_by_dso(struct hists *hists);
124 void hists__filter_by_thread(struct hists *hists);
125 void hists__filter_by_symbol(struct hists *hists);
126 
127 u16 hists__col_len(struct hists *self, enum hist_column col);
128 void hists__set_col_len(struct hists *self, enum hist_column col, u16 len);
129 bool hists__new_col_len(struct hists *self, enum hist_column col, u16 len);
130 void hists__reset_col_len(struct hists *hists);
131 void hists__calc_col_len(struct hists *hists, struct hist_entry *he);
132 
133 void hists__match(struct hists *leader, struct hists *other);
134 int hists__link(struct hists *leader, struct hists *other);
135 
136 struct perf_hpp {
137 	char *buf;
138 	size_t size;
139 	const char *sep;
140 	void *ptr;
141 };
142 
143 struct perf_hpp_fmt {
144 	int (*header)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp);
145 	int (*width)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp);
146 	int (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
147 		     struct hist_entry *he);
148 	int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
149 		     struct hist_entry *he);
150 
151 	struct list_head list;
152 };
153 
154 extern struct list_head perf_hpp__list;
155 
156 #define perf_hpp__for_each_format(format) \
157 	list_for_each_entry(format, &perf_hpp__list, list)
158 
159 extern struct perf_hpp_fmt perf_hpp__format[];
160 
161 enum {
162 	/* Matches perf_hpp__format array. */
163 	PERF_HPP__OVERHEAD,
164 	PERF_HPP__OVERHEAD_SYS,
165 	PERF_HPP__OVERHEAD_US,
166 	PERF_HPP__OVERHEAD_GUEST_SYS,
167 	PERF_HPP__OVERHEAD_GUEST_US,
168 	PERF_HPP__SAMPLES,
169 	PERF_HPP__PERIOD,
170 
171 	PERF_HPP__MAX_INDEX
172 };
173 
174 void perf_hpp__init(void);
175 void perf_hpp__column_register(struct perf_hpp_fmt *format);
176 void perf_hpp__column_enable(unsigned col);
177 
178 struct perf_evlist;
179 
180 struct hist_browser_timer {
181 	void (*timer)(void *arg);
182 	void *arg;
183 	int refresh;
184 };
185 
186 #ifdef SLANG_SUPPORT
187 #include "../ui/keysyms.h"
188 int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
189 			     struct hist_browser_timer *hbt);
190 
191 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
192 				  struct hist_browser_timer *hbt,
193 				  float min_pcnt,
194 				  struct perf_session_env *env);
195 int script_browse(const char *script_opt);
196 #else
197 static inline
198 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
199 				  const char *help __maybe_unused,
200 				  struct hist_browser_timer *hbt __maybe_unused,
201 				  float min_pcnt __maybe_unused,
202 				  struct perf_session_env *env __maybe_unused)
203 {
204 	return 0;
205 }
206 
207 static inline int hist_entry__tui_annotate(struct hist_entry *self
208 					   __maybe_unused,
209 					   struct perf_evsel *evsel
210 					   __maybe_unused,
211 					   struct hist_browser_timer *hbt
212 					   __maybe_unused)
213 {
214 	return 0;
215 }
216 
217 static inline int script_browse(const char *script_opt __maybe_unused)
218 {
219 	return 0;
220 }
221 
222 #define K_LEFT  -1000
223 #define K_RIGHT -2000
224 #define K_SWITCH_INPUT_DATA -3000
225 #endif
226 
227 #ifdef GTK2_SUPPORT
228 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist, const char *help,
229 				  struct hist_browser_timer *hbt __maybe_unused,
230 				  float min_pcnt);
231 #else
232 static inline
233 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist __maybe_unused,
234 				  const char *help __maybe_unused,
235 				  struct hist_browser_timer *hbt __maybe_unused,
236 				  float min_pcnt __maybe_unused)
237 {
238 	return 0;
239 }
240 #endif
241 
242 unsigned int hists__sort_list_width(struct hists *self);
243 #endif	/* __PERF_HIST_H */
244