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 #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 int hist_entry__period_snprintf(struct perf_hpp *hpp, struct hist_entry *he,
 178                                 bool color);
 179
 180 struct perf_evlist;
 181
 182 struct hist_browser_timer {
 183         void (*timer)(void *arg);
 184         void *arg;
 185         int refresh;
 186 };
 187
 188 #ifdef SLANG_SUPPORT
 189 #include "../ui/keysyms.h"
 190 int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
 191                              struct hist_browser_timer *hbt);
 192
 193 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
 194                                   struct hist_browser_timer *hbt,
 195                                   float min_pcnt,
 196                                   struct perf_session_env *env);
 197 int script_browse(const char *script_opt);
 198 #else
 199 static inline
 200 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
 201                                   const char *help __maybe_unused,
 202                                   struct hist_browser_timer *hbt __maybe_unused,
 203                                   float min_pcnt __maybe_unused,
 204                                   struct perf_session_env *env __maybe_unused)
 205 {
 206         return 0;
 207 }
 208
 209 static inline int hist_entry__tui_annotate(struct hist_entry *self
 210                                            __maybe_unused,
 211                                            struct perf_evsel *evsel
 212                                            __maybe_unused,
 213                                            struct hist_browser_timer *hbt
 214                                            __maybe_unused)
 215 {
 216         return 0;
 217 }
 218
 219 static inline int script_browse(const char *script_opt __maybe_unused)
 220 {
 221         return 0;
 222 }
 223
 224 #define K_LEFT  -1000
 225 #define K_RIGHT -2000
 226 #define K_SWITCH_INPUT_DATA -3000
 227 #endif
 228
 229 #ifdef GTK2_SUPPORT
 230 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist, const char *help,
 231                                   struct hist_browser_timer *hbt __maybe_unused,
 232                                   float min_pcnt);
 233 #else
 234 static inline
 235 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist __maybe_unused,
 236                                   const char *help __maybe_unused,
 237                                   struct hist_browser_timer *hbt __maybe_unused,
 238                                   float min_pcnt __maybe_unused)
 239 {
 240         return 0;
 241 }
 242 #endif
 243
 244 unsigned int hists__sort_list_width(struct hists *self);
 245
 246 double perf_diff__compute_delta(struct hist_entry *he, struct hist_entry *pair);
 247 double perf_diff__compute_ratio(struct hist_entry *he, struct hist_entry *pair);
 248 s64 perf_diff__compute_wdiff(struct hist_entry *he, struct hist_entry *pair);
 249 int perf_diff__formula(struct hist_entry *he, struct hist_entry *pair,
 250                        char *buf, size_t size);
 251 double perf_diff__period_percent(struct hist_entry *he, u64 period);
 252 #endif  /* __PERF_HIST_H */