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 #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 */