tools/perf/util/hist.h

   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
   8 extern struct callchain_param callchain_param;
   9
  10 struct hist_entry;
  11 struct addr_location;
  12 struct symbol;
  13
  14 /*
  15  * The kernel collects the number of events it couldn't send in a stretch and
  16  * when possible sends this number in a PERF_RECORD_LOST event. The number of
  17  * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
  18  * total_lost tells exactly how many events the kernel in fact lost, i.e. it is
  19  * the sum of all struct lost_event.lost fields reported.
  20  *
  21  * The total_period is needed because by default auto-freq is used, so
  22  * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
  23  * the total number of low level events, it is necessary to to sum all struct
  24  * sample_event.period and stash the result in total_period.
  25  */
  26 struct events_stats {
  27         u64 total_period;
  28         u64 total_lost;
  29         u64 total_invalid_chains;
  30         u32 nr_events[PERF_RECORD_HEADER_MAX];
  31         u32 nr_lost_warned;
  32         u32 nr_unknown_events;
  33         u32 nr_invalid_chains;
  34         u32 nr_unknown_id;
  35         u32 nr_unprocessable_samples;
  36 };
  37
  38 enum hist_column {
  39         HISTC_SYMBOL,
  40         HISTC_DSO,
  41         HISTC_THREAD,
  42         HISTC_COMM,
  43         HISTC_PARENT,
  44         HISTC_CPU,
  45         HISTC_MISPREDICT,
  46         HISTC_SYMBOL_FROM,
  47         HISTC_SYMBOL_TO,
  48         HISTC_DSO_FROM,
  49         HISTC_DSO_TO,
  50         HISTC_SRCLINE,
  51         HISTC_NR_COLS, /* Last entry */
  52 };
  53
  54 struct thread;
  55 struct dso;
  56
  57 struct hists {
  58         struct rb_root          entries_in_array[2];
  59         struct rb_root          *entries_in;
  60         struct rb_root          entries;
  61         struct rb_root          entries_collapsed;
  62         u64                     nr_entries;
  63         const struct thread     *thread_filter;
  64         const struct dso        *dso_filter;
  65         const char              *uid_filter_str;
  66         const char              *symbol_filter_str;
  67         pthread_mutex_t         lock;
  68         struct events_stats     stats;
  69         u64                     event_stream;
  70         u16                     col_len[HISTC_NR_COLS];
  71 };
  72
  73 struct hist_entry *__hists__add_entry(struct hists *self,
  74                                       struct addr_location *al,
  75                                       struct symbol *parent, u64 period);
  76 int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
  77 int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
  78 int hist_entry__sort_snprintf(struct hist_entry *self, char *bf, size_t size,
  79                               struct hists *hists);
  80 void hist_entry__free(struct hist_entry *);
  81
  82 struct hist_entry *__hists__add_branch_entry(struct hists *self,
  83                                              struct addr_location *al,
  84                                              struct symbol *sym_parent,
  85                                              struct branch_info *bi,
  86                                              u64 period);
  87
  88 void hists__output_resort(struct hists *self);
  89 void hists__output_resort_threaded(struct hists *hists);
  90 void hists__collapse_resort(struct hists *self);
  91 void hists__collapse_resort_threaded(struct hists *hists);
  92
  93 void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);
  94 void hists__decay_entries_threaded(struct hists *hists, bool zap_user,
  95                                    bool zap_kernel);
  96 void hists__output_recalc_col_len(struct hists *hists, int max_rows);
  97
  98 void hists__inc_nr_events(struct hists *self, u32 type);
  99 size_t hists__fprintf_nr_events(struct hists *self, FILE *fp);
 100
 101 size_t hists__fprintf(struct hists *self, bool show_header, int max_rows,
 102                       int max_cols, FILE *fp);
 103
 104 int hist_entry__inc_addr_samples(struct hist_entry *self, int evidx, u64 addr);
 105 int hist_entry__annotate(struct hist_entry *self, size_t privsize);
 106
 107 void hists__filter_by_dso(struct hists *hists);
 108 void hists__filter_by_thread(struct hists *hists);
 109 void hists__filter_by_symbol(struct hists *hists);
 110
 111 u16 hists__col_len(struct hists *self, enum hist_column col);
 112 void hists__set_col_len(struct hists *self, enum hist_column col, u16 len);
 113 bool hists__new_col_len(struct hists *self, enum hist_column col, u16 len);
 114 void hists__reset_col_len(struct hists *hists);
 115 void hists__calc_col_len(struct hists *hists, struct hist_entry *he);
 116
 117 struct perf_hpp {
 118         char *buf;
 119         size_t size;
 120         const char *sep;
 121         void *ptr;
 122 };
 123
 124 struct perf_hpp_fmt {
 125         bool cond;
 126         int (*header)(struct perf_hpp *hpp);
 127         int (*width)(struct perf_hpp *hpp);
 128         int (*color)(struct perf_hpp *hpp, struct hist_entry *he);
 129         int (*entry)(struct perf_hpp *hpp, struct hist_entry *he);
 130 };
 131
 132 extern struct perf_hpp_fmt perf_hpp__format[];
 133
 134 enum {
 135         PERF_HPP__BASELINE,
 136         PERF_HPP__OVERHEAD,
 137         PERF_HPP__OVERHEAD_SYS,
 138         PERF_HPP__OVERHEAD_US,
 139         PERF_HPP__OVERHEAD_GUEST_SYS,
 140         PERF_HPP__OVERHEAD_GUEST_US,
 141         PERF_HPP__SAMPLES,
 142         PERF_HPP__PERIOD,
 143         PERF_HPP__DELTA,
 144         PERF_HPP__RATIO,
 145         PERF_HPP__WEIGHTED_DIFF,
 146         PERF_HPP__DISPL,
 147
 148         PERF_HPP__MAX_INDEX
 149 };
 150
 151 void perf_hpp__init(void);
 152 void perf_hpp__column_enable(unsigned col, bool enable);
 153 int hist_entry__period_snprintf(struct perf_hpp *hpp, struct hist_entry *he,
 154                                 bool color);
 155
 156 struct perf_evlist;
 157
 158 #ifdef NEWT_SUPPORT
 159 #include "../ui/keysyms.h"
 160 int hist_entry__tui_annotate(struct hist_entry *he, int evidx,
 161                              void(*timer)(void *arg), void *arg, int delay_secs);
 162
 163 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
 164                                   void(*timer)(void *arg), void *arg,
 165                                   int refresh);
 166 #else
 167 static inline
 168 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
 169                                   const char *help __maybe_unused,
 170                                   void(*timer)(void *arg) __maybe_unused,
 171                                   void *arg __maybe_unused,
 172                                   int refresh __maybe_unused)
 173 {
 174         return 0;
 175 }
 176
 177 static inline int hist_entry__tui_annotate(struct hist_entry *self
 178                                            __maybe_unused,
 179                                            int evidx __maybe_unused,
 180                                            void(*timer)(void *arg)
 181                                            __maybe_unused,
 182                                            void *arg __maybe_unused,
 183                                            int delay_secs __maybe_unused)
 184 {
 185         return 0;
 186 }
 187 #define K_LEFT -1
 188 #define K_RIGHT -2
 189 #endif
 190
 191 #ifdef GTK2_SUPPORT
 192 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist, const char *help,
 193                                   void(*timer)(void *arg), void *arg,
 194                                   int refresh);
 195 #else
 196 static inline
 197 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist __maybe_unused,
 198                                   const char *help __maybe_unused,
 199                                   void(*timer)(void *arg) __maybe_unused,
 200                                   void *arg __maybe_unused,
 201                                   int refresh __maybe_unused)
 202 {
 203         return 0;
 204 }
 205 #endif
 206
 207 unsigned int hists__sort_list_width(struct hists *self);
 208
 209 double perf_diff__compute_delta(struct hist_entry *he);
 210 double perf_diff__compute_ratio(struct hist_entry *he);
 211 s64 perf_diff__compute_wdiff(struct hist_entry *he);
 212 #endif  /* __PERF_HIST_H */