tools/perf/ui/hist.c

   1 #include <math.h>
   2 #include <linux/compiler.h>
   3
   4 #include "../util/hist.h"
   5 #include "../util/util.h"
   6 #include "../util/sort.h"
   7 #include "../util/evsel.h"
   8
   9 /* hist period print (hpp) functions */
  10
  11 typedef int (*hpp_snprint_fn)(char *buf, size_t size, const char *fmt, ...);
  12
  13 static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
  14                       u64 (*get_field)(struct hist_entry *),
  15                       const char *fmt, hpp_snprint_fn print_fn,
  16                       bool fmt_percent)
  17 {
  18         int ret;
  19         struct hists *hists = he->hists;
  20         struct perf_evsel *evsel = hists_to_evsel(hists);
  21
  22         if (fmt_percent) {
  23                 double percent = 0.0;
  24
  25                 if (hists->stats.total_period)
  26                         percent = 100.0 * get_field(he) /
  27                                   hists->stats.total_period;
  28
  29                 ret = print_fn(hpp->buf, hpp->size, fmt, percent);
  30         } else
  31                 ret = print_fn(hpp->buf, hpp->size, fmt, get_field(he));
  32
  33         if (perf_evsel__is_group_event(evsel)) {
  34                 int prev_idx, idx_delta;
  35                 struct hist_entry *pair;
  36                 int nr_members = evsel->nr_members;
  37
  38                 prev_idx = perf_evsel__group_idx(evsel);
  39
  40                 list_for_each_entry(pair, &he->pairs.head, pairs.node) {
  41                         u64 period = get_field(pair);
  42                         u64 total = pair->hists->stats.total_period;
  43
  44                         if (!total)
  45                                 continue;
  46
  47                         evsel = hists_to_evsel(pair->hists);
  48                         idx_delta = perf_evsel__group_idx(evsel) - prev_idx - 1;
  49
  50                         while (idx_delta--) {
  51                                 /*
  52                                  * zero-fill group members in the middle which
  53                                  * have no sample
  54                                  */
  55                                 ret += print_fn(hpp->buf + ret, hpp->size - ret,
  56                                                 fmt, 0);
  57                         }
  58
  59                         if (fmt_percent)
  60                                 ret += print_fn(hpp->buf + ret, hpp->size - ret,
  61                                                 fmt, 100.0 * period / total);
  62                         else
  63                                 ret += print_fn(hpp->buf + ret, hpp->size - ret,
  64                                                 fmt, period);
  65
  66                         prev_idx = perf_evsel__group_idx(evsel);
  67                 }
  68
  69                 idx_delta = nr_members - prev_idx - 1;
  70
  71                 while (idx_delta--) {
  72                         /*
  73                          * zero-fill group members at last which have no sample
  74                          */
  75                         ret += print_fn(hpp->buf + ret, hpp->size - ret,
  76                                         fmt, 0);
  77                 }
  78         }
  79         return ret;
  80 }
  81
  82 #define __HPP_HEADER_FN(_type, _str, _min_width, _unit_width)           \
  83 static int hpp__header_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
  84                                struct perf_hpp *hpp)                    \
  85 {                                                                       \
  86         int len = _min_width;                                           \
  87                                                                         \
  88         if (symbol_conf.event_group) {                                  \
  89                 struct perf_evsel *evsel = hpp->ptr;                    \
  90                                                                         \
  91                 len = max(len, evsel->nr_members * _unit_width);        \
  92         }                                                               \
  93         return scnprintf(hpp->buf, hpp->size, "%*s", len, _str);        \
  94 }
  95
  96 #define __HPP_WIDTH_FN(_type, _min_width, _unit_width)                  \
  97 static int hpp__width_##_type(struct perf_hpp_fmt *fmt __maybe_unused,  \
  98                               struct perf_hpp *hpp __maybe_unused)      \
  99 {                                                                       \
 100         int len = _min_width;                                           \
 101                                                                         \
 102         if (symbol_conf.event_group) {                                  \
 103                 struct perf_evsel *evsel = hpp->ptr;                    \
 104                                                                         \
 105                 len = max(len, evsel->nr_members * _unit_width);        \
 106         }                                                               \
 107         return len;                                                     \
 108 }
 109
 110 #define __HPP_COLOR_PERCENT_FN(_type, _field)                                   \
 111 static u64 he_get_##_field(struct hist_entry *he)                               \
 112 {                                                                               \
 113         return he->stat._field;                                                 \
 114 }                                                                               \
 115                                                                                 \
 116 static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,          \
 117                               struct perf_hpp *hpp, struct hist_entry *he)      \
 118 {                                                                               \
 119         return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%",                 \
 120                           percent_color_snprintf, true);                        \
 121 }
 122
 123 #define __HPP_ENTRY_PERCENT_FN(_type, _field)                                   \
 124 static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused,         \
 125                               struct perf_hpp *hpp, struct hist_entry *he)      \
 126 {                                                                               \
 127         const char *fmt = symbol_conf.field_sep ? " %.2f" : " %6.2f%%";         \
 128         return __hpp__fmt(hpp, he, he_get_##_field, fmt,                        \
 129                           scnprintf, true);                                     \
 130 }
 131
 132 #define __HPP_ENTRY_RAW_FN(_type, _field)                                       \
 133 static u64 he_get_raw_##_field(struct hist_entry *he)                           \
 134 {                                                                               \
 135         return he->stat._field;                                                 \
 136 }                                                                               \
 137                                                                                 \
 138 static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused,         \
 139                               struct perf_hpp *hpp, struct hist_entry *he)      \
 140 {                                                                               \
 141         const char *fmt = symbol_conf.field_sep ? " %"PRIu64 : " %11"PRIu64;    \
 142         return __hpp__fmt(hpp, he, he_get_raw_##_field, fmt, scnprintf, false); \
 143 }
 144
 145 #define HPP_PERCENT_FNS(_type, _str, _field, _min_width, _unit_width)   \
 146 __HPP_HEADER_FN(_type, _str, _min_width, _unit_width)                   \
 147 __HPP_WIDTH_FN(_type, _min_width, _unit_width)                          \
 148 __HPP_COLOR_PERCENT_FN(_type, _field)                                   \
 149 __HPP_ENTRY_PERCENT_FN(_type, _field)
 150
 151 #define HPP_RAW_FNS(_type, _str, _field, _min_width, _unit_width)       \
 152 __HPP_HEADER_FN(_type, _str, _min_width, _unit_width)                   \
 153 __HPP_WIDTH_FN(_type, _min_width, _unit_width)                          \
 154 __HPP_ENTRY_RAW_FN(_type, _field)
 155
 156
 157 HPP_PERCENT_FNS(overhead, "Overhead", period, 8, 8)
 158 HPP_PERCENT_FNS(overhead_sys, "sys", period_sys, 8, 8)
 159 HPP_PERCENT_FNS(overhead_us, "usr", period_us, 8, 8)
 160 HPP_PERCENT_FNS(overhead_guest_sys, "guest sys", period_guest_sys, 9, 8)
 161 HPP_PERCENT_FNS(overhead_guest_us, "guest usr", period_guest_us, 9, 8)
 162
 163 HPP_RAW_FNS(samples, "Samples", nr_events, 12, 12)
 164 HPP_RAW_FNS(period, "Period", period, 12, 12)
 165
 166 #define HPP__COLOR_PRINT_FNS(_name)                     \
 167         {                                               \
 168                 .header = hpp__header_ ## _name,        \
 169                 .width  = hpp__width_ ## _name,         \
 170                 .color  = hpp__color_ ## _name,         \
 171                 .entry  = hpp__entry_ ## _name          \
 172         }
 173
 174 #define HPP__PRINT_FNS(_name)                           \
 175         {                                               \
 176                 .header = hpp__header_ ## _name,        \
 177                 .width  = hpp__width_ ## _name,         \
 178                 .entry  = hpp__entry_ ## _name          \
 179         }
 180
 181 struct perf_hpp_fmt perf_hpp__format[] = {
 182         HPP__COLOR_PRINT_FNS(overhead),
 183         HPP__COLOR_PRINT_FNS(overhead_sys),
 184         HPP__COLOR_PRINT_FNS(overhead_us),
 185         HPP__COLOR_PRINT_FNS(overhead_guest_sys),
 186         HPP__COLOR_PRINT_FNS(overhead_guest_us),
 187         HPP__PRINT_FNS(samples),
 188         HPP__PRINT_FNS(period)
 189 };
 190
 191 LIST_HEAD(perf_hpp__list);
 192
 193
 194 #undef HPP__COLOR_PRINT_FNS
 195 #undef HPP__PRINT_FNS
 196
 197 #undef HPP_PERCENT_FNS
 198 #undef HPP_RAW_FNS
 199
 200 #undef __HPP_HEADER_FN
 201 #undef __HPP_WIDTH_FN
 202 #undef __HPP_COLOR_PERCENT_FN
 203 #undef __HPP_ENTRY_PERCENT_FN
 204 #undef __HPP_ENTRY_RAW_FN
 205
 206
 207 void perf_hpp__init(void)
 208 {
 209         perf_hpp__column_enable(PERF_HPP__OVERHEAD);
 210
 211         if (symbol_conf.show_cpu_utilization) {
 212                 perf_hpp__column_enable(PERF_HPP__OVERHEAD_SYS);
 213                 perf_hpp__column_enable(PERF_HPP__OVERHEAD_US);
 214
 215                 if (perf_guest) {
 216                         perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_SYS);
 217                         perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_US);
 218                 }
 219         }
 220
 221         if (symbol_conf.show_nr_samples)
 222                 perf_hpp__column_enable(PERF_HPP__SAMPLES);
 223
 224         if (symbol_conf.show_total_period)
 225                 perf_hpp__column_enable(PERF_HPP__PERIOD);
 226 }
 227
 228 void perf_hpp__column_register(struct perf_hpp_fmt *format)
 229 {
 230         list_add_tail(&format->list, &perf_hpp__list);
 231 }
 232
 233 void perf_hpp__column_enable(unsigned col)
 234 {
 235         BUG_ON(col >= PERF_HPP__MAX_INDEX);
 236         perf_hpp__column_register(&perf_hpp__format[col]);
 237 }
 238
 239 int hist_entry__sort_snprintf(struct hist_entry *he, char *s, size_t size,
 240                               struct hists *hists)
 241 {
 242         const char *sep = symbol_conf.field_sep;
 243         struct sort_entry *se;
 244         int ret = 0;
 245
 246         list_for_each_entry(se, &hist_entry__sort_list, list) {
 247                 if (se->elide)
 248                         continue;
 249
 250                 ret += scnprintf(s + ret, size - ret, "%s", sep ?: "  ");
 251                 ret += se->se_snprintf(he, s + ret, size - ret,
 252                                        hists__col_len(hists, se->se_width_idx));
 253         }
 254
 255         return ret;
 256 }
 257
 258 /*
 259  * See hists__fprintf to match the column widths
 260  */
 261 unsigned int hists__sort_list_width(struct hists *hists)
 262 {
 263         struct perf_hpp_fmt *fmt;
 264         struct sort_entry *se;
 265         int i = 0, ret = 0;
 266         struct perf_hpp dummy_hpp = {
 267                 .ptr    = hists_to_evsel(hists),
 268         };
 269
 270         perf_hpp__for_each_format(fmt) {
 271                 if (i)
 272                         ret += 2;
 273
 274                 ret += fmt->width(fmt, &dummy_hpp);
 275         }
 276
 277         list_for_each_entry(se, &hist_entry__sort_list, list)
 278                 if (!se->elide)
 279                         ret += 2 + hists__col_len(hists, se->se_width_idx);
 280
 281         if (verbose) /* Addr + origin */
 282                 ret += 3 + BITS_PER_LONG / 4;
 283
 284         return ret;
 285 }