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 int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
  12                u64 (*get_field)(struct hist_entry *),
  13                const char *fmt, hpp_snprint_fn print_fn, bool fmt_percent)
  14 {
  15         int ret;
  16         struct hists *hists = he->hists;
  17         struct perf_evsel *evsel = hists_to_evsel(hists);
  18
  19         if (fmt_percent) {
  20                 double percent = 0.0;
  21
  22                 if (hists->stats.total_period)
  23                         percent = 100.0 * get_field(he) /
  24                                   hists->stats.total_period;
  25
  26                 ret = print_fn(hpp->buf, hpp->size, fmt, percent);
  27         } else
  28                 ret = print_fn(hpp->buf, hpp->size, fmt, get_field(he));
  29
  30         if (perf_evsel__is_group_event(evsel)) {
  31                 int prev_idx, idx_delta;
  32                 struct hist_entry *pair;
  33                 int nr_members = evsel->nr_members;
  34
  35                 prev_idx = perf_evsel__group_idx(evsel);
  36
  37                 list_for_each_entry(pair, &he->pairs.head, pairs.node) {
  38                         u64 period = get_field(pair);
  39                         u64 total = pair->hists->stats.total_period;
  40
  41                         if (!total)
  42                                 continue;
  43
  44                         evsel = hists_to_evsel(pair->hists);
  45                         idx_delta = perf_evsel__group_idx(evsel) - prev_idx - 1;
  46
  47                         while (idx_delta--) {
  48                                 /*
  49                                  * zero-fill group members in the middle which
  50                                  * have no sample
  51                                  */
  52                                 if (fmt_percent) {
  53                                         ret += print_fn(hpp->buf + ret,
  54                                                         hpp->size - ret,
  55                                                         fmt, 0.0);
  56                                 } else {
  57                                         ret += print_fn(hpp->buf + ret,
  58                                                         hpp->size - ret,
  59                                                         fmt, 0ULL);
  60                                 }
  61                         }
  62
  63                         if (fmt_percent)
  64                                 ret += print_fn(hpp->buf + ret, hpp->size - ret,
  65                                                 fmt, 100.0 * period / total);
  66                         else
  67                                 ret += print_fn(hpp->buf + ret, hpp->size - ret,
  68                                                 fmt, period);
  69
  70                         prev_idx = perf_evsel__group_idx(evsel);
  71                 }
  72
  73                 idx_delta = nr_members - prev_idx - 1;
  74
  75                 while (idx_delta--) {
  76                         /*
  77                          * zero-fill group members at last which have no sample
  78                          */
  79                         if (fmt_percent) {
  80                                 ret += print_fn(hpp->buf + ret, hpp->size - ret,
  81                                                 fmt, 0.0);
  82                         } else {
  83                                 ret += print_fn(hpp->buf + ret, hpp->size - ret,
  84                                                 fmt, 0ULL);
  85                         }
  86                 }
  87         }
  88         return ret;
  89 }
  90
  91 #define __HPP_HEADER_FN(_type, _str, _min_width, _unit_width)           \
  92 static int hpp__header_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
  93                                struct perf_hpp *hpp)                    \
  94 {                                                                       \
  95         int len = _min_width;                                           \
  96                                                                         \
  97         if (symbol_conf.event_group) {                                  \
  98                 struct perf_evsel *evsel = hpp->ptr;                    \
  99                                                                         \
 100                 len = max(len, evsel->nr_members * _unit_width);        \
 101         }                                                               \
 102         return scnprintf(hpp->buf, hpp->size, "%*s", len, _str);        \
 103 }
 104
 105 #define __HPP_WIDTH_FN(_type, _min_width, _unit_width)                  \
 106 static int hpp__width_##_type(struct perf_hpp_fmt *fmt __maybe_unused,  \
 107                               struct perf_hpp *hpp __maybe_unused)      \
 108 {                                                                       \
 109         int len = _min_width;                                           \
 110                                                                         \
 111         if (symbol_conf.event_group) {                                  \
 112                 struct perf_evsel *evsel = hpp->ptr;                    \
 113                                                                         \
 114                 len = max(len, evsel->nr_members * _unit_width);        \
 115         }                                                               \
 116         return len;                                                     \
 117 }
 118
 119 #define __HPP_COLOR_PERCENT_FN(_type, _field)                                   \
 120 static u64 he_get_##_field(struct hist_entry *he)                               \
 121 {                                                                               \
 122         return he->stat._field;                                                 \
 123 }                                                                               \
 124                                                                                 \
 125 static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,          \
 126                               struct perf_hpp *hpp, struct hist_entry *he)      \
 127 {                                                                               \
 128         return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%",                 \
 129                           percent_color_snprintf, true);                        \
 130 }
 131
 132 #define __HPP_ENTRY_PERCENT_FN(_type, _field)                                   \
 133 static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused,         \
 134                               struct perf_hpp *hpp, struct hist_entry *he)      \
 135 {                                                                               \
 136         const char *fmt = symbol_conf.field_sep ? " %.2f" : " %6.2f%%";         \
 137         return __hpp__fmt(hpp, he, he_get_##_field, fmt,                        \
 138                           scnprintf, true);                                     \
 139 }
 140
 141 #define __HPP_ENTRY_RAW_FN(_type, _field)                                       \
 142 static u64 he_get_raw_##_field(struct hist_entry *he)                           \
 143 {                                                                               \
 144         return he->stat._field;                                                 \
 145 }                                                                               \
 146                                                                                 \
 147 static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused,         \
 148                               struct perf_hpp *hpp, struct hist_entry *he)      \
 149 {                                                                               \
 150         const char *fmt = symbol_conf.field_sep ? " %"PRIu64 : " %11"PRIu64;    \
 151         return __hpp__fmt(hpp, he, he_get_raw_##_field, fmt, scnprintf, false); \
 152 }
 153
 154 #define HPP_PERCENT_FNS(_type, _str, _field, _min_width, _unit_width)   \
 155 __HPP_HEADER_FN(_type, _str, _min_width, _unit_width)                   \
 156 __HPP_WIDTH_FN(_type, _min_width, _unit_width)                          \
 157 __HPP_COLOR_PERCENT_FN(_type, _field)                                   \
 158 __HPP_ENTRY_PERCENT_FN(_type, _field)
 159
 160 #define HPP_RAW_FNS(_type, _str, _field, _min_width, _unit_width)       \
 161 __HPP_HEADER_FN(_type, _str, _min_width, _unit_width)                   \
 162 __HPP_WIDTH_FN(_type, _min_width, _unit_width)                          \
 163 __HPP_ENTRY_RAW_FN(_type, _field)
 164
 165
 166 HPP_PERCENT_FNS(overhead, "Overhead", period, 8, 8)
 167 HPP_PERCENT_FNS(overhead_sys, "sys", period_sys, 8, 8)
 168 HPP_PERCENT_FNS(overhead_us, "usr", period_us, 8, 8)
 169 HPP_PERCENT_FNS(overhead_guest_sys, "guest sys", period_guest_sys, 9, 8)
 170 HPP_PERCENT_FNS(overhead_guest_us, "guest usr", period_guest_us, 9, 8)
 171
 172 HPP_RAW_FNS(samples, "Samples", nr_events, 12, 12)
 173 HPP_RAW_FNS(period, "Period", period, 12, 12)
 174
 175 #define HPP__COLOR_PRINT_FNS(_name)                     \
 176         {                                               \
 177                 .header = hpp__header_ ## _name,        \
 178                 .width  = hpp__width_ ## _name,         \
 179                 .color  = hpp__color_ ## _name,         \
 180                 .entry  = hpp__entry_ ## _name          \
 181         }
 182
 183 #define HPP__PRINT_FNS(_name)                           \
 184         {                                               \
 185                 .header = hpp__header_ ## _name,        \
 186                 .width  = hpp__width_ ## _name,         \
 187                 .entry  = hpp__entry_ ## _name          \
 188         }
 189
 190 struct perf_hpp_fmt perf_hpp__format[] = {
 191         HPP__COLOR_PRINT_FNS(overhead),
 192         HPP__COLOR_PRINT_FNS(overhead_sys),
 193         HPP__COLOR_PRINT_FNS(overhead_us),
 194         HPP__COLOR_PRINT_FNS(overhead_guest_sys),
 195         HPP__COLOR_PRINT_FNS(overhead_guest_us),
 196         HPP__PRINT_FNS(samples),
 197         HPP__PRINT_FNS(period)
 198 };
 199
 200 LIST_HEAD(perf_hpp__list);
 201
 202
 203 #undef HPP__COLOR_PRINT_FNS
 204 #undef HPP__PRINT_FNS
 205
 206 #undef HPP_PERCENT_FNS
 207 #undef HPP_RAW_FNS
 208
 209 #undef __HPP_HEADER_FN
 210 #undef __HPP_WIDTH_FN
 211 #undef __HPP_COLOR_PERCENT_FN
 212 #undef __HPP_ENTRY_PERCENT_FN
 213 #undef __HPP_ENTRY_RAW_FN
 214
 215
 216 void perf_hpp__init(void)
 217 {
 218         perf_hpp__column_enable(PERF_HPP__OVERHEAD);
 219
 220         if (symbol_conf.show_cpu_utilization) {
 221                 perf_hpp__column_enable(PERF_HPP__OVERHEAD_SYS);
 222                 perf_hpp__column_enable(PERF_HPP__OVERHEAD_US);
 223
 224                 if (perf_guest) {
 225                         perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_SYS);
 226                         perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_US);
 227                 }
 228         }
 229
 230         if (symbol_conf.show_nr_samples)
 231                 perf_hpp__column_enable(PERF_HPP__SAMPLES);
 232
 233         if (symbol_conf.show_total_period)
 234                 perf_hpp__column_enable(PERF_HPP__PERIOD);
 235 }
 236
 237 void perf_hpp__column_register(struct perf_hpp_fmt *format)
 238 {
 239         list_add_tail(&format->list, &perf_hpp__list);
 240 }
 241
 242 void perf_hpp__column_enable(unsigned col)
 243 {
 244         BUG_ON(col >= PERF_HPP__MAX_INDEX);
 245         perf_hpp__column_register(&perf_hpp__format[col]);
 246 }
 247
 248 int hist_entry__sort_snprintf(struct hist_entry *he, char *s, size_t size,
 249                               struct hists *hists)
 250 {
 251         const char *sep = symbol_conf.field_sep;
 252         struct sort_entry *se;
 253         int ret = 0;
 254
 255         list_for_each_entry(se, &hist_entry__sort_list, list) {
 256                 if (se->elide)
 257                         continue;
 258
 259                 ret += scnprintf(s + ret, size - ret, "%s", sep ?: "  ");
 260                 ret += se->se_snprintf(he, s + ret, size - ret,
 261                                        hists__col_len(hists, se->se_width_idx));
 262         }
 263
 264         return ret;
 265 }
 266
 267 /*
 268  * See hists__fprintf to match the column widths
 269  */
 270 unsigned int hists__sort_list_width(struct hists *hists)
 271 {
 272         struct perf_hpp_fmt *fmt;
 273         struct sort_entry *se;
 274         int i = 0, ret = 0;
 275         struct perf_hpp dummy_hpp = {
 276                 .ptr    = hists_to_evsel(hists),
 277         };
 278
 279         perf_hpp__for_each_format(fmt) {
 280                 if (i)
 281                         ret += 2;
 282
 283                 ret += fmt->width(fmt, &dummy_hpp);
 284         }
 285
 286         list_for_each_entry(se, &hist_entry__sort_list, list)
 287                 if (!se->elide)
 288                         ret += 2 + hists__col_len(hists, se->se_width_idx);
 289
 290         if (verbose) /* Addr + origin */
 291                 ret += 3 + BITS_PER_LONG / 4;
 292
 293         return ret;
 294 }