dc0d095f318c7da2868352d5a4c048a5dde40251
[cascardo/linux.git] / 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 #define hpp__call_print_fn(hpp, fn, fmt, ...)                   \
12 ({                                                              \
13         int __ret = fn(hpp, fmt, ##__VA_ARGS__);                \
14         advance_hpp(hpp, __ret);                                \
15         __ret;                                                  \
16 })
17
18 static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
19                       hpp_field_fn get_field, const char *fmt, int len,
20                       hpp_snprint_fn print_fn, bool fmt_percent)
21 {
22         int ret;
23         struct hists *hists = he->hists;
24         struct perf_evsel *evsel = hists_to_evsel(hists);
25         char *buf = hpp->buf;
26         size_t size = hpp->size;
27
28         if (fmt_percent) {
29                 double percent = 0.0;
30                 u64 total = hists__total_period(hists);
31
32                 if (total)
33                         percent = 100.0 * get_field(he) / total;
34
35                 ret = hpp__call_print_fn(hpp, print_fn, fmt, len, percent);
36         } else
37                 ret = hpp__call_print_fn(hpp, print_fn, fmt, len, get_field(he));
38
39         if (perf_evsel__is_group_event(evsel)) {
40                 int prev_idx, idx_delta;
41                 struct hist_entry *pair;
42                 int nr_members = evsel->nr_members;
43
44                 prev_idx = perf_evsel__group_idx(evsel);
45
46                 list_for_each_entry(pair, &he->pairs.head, pairs.node) {
47                         u64 period = get_field(pair);
48                         u64 total = hists__total_period(pair->hists);
49
50                         if (!total)
51                                 continue;
52
53                         evsel = hists_to_evsel(pair->hists);
54                         idx_delta = perf_evsel__group_idx(evsel) - prev_idx - 1;
55
56                         while (idx_delta--) {
57                                 /*
58                                  * zero-fill group members in the middle which
59                                  * have no sample
60                                  */
61                                 if (fmt_percent) {
62                                         ret += hpp__call_print_fn(hpp, print_fn,
63                                                                   fmt, len, 0.0);
64                                 } else {
65                                         ret += hpp__call_print_fn(hpp, print_fn,
66                                                                   fmt, len, 0ULL);
67                                 }
68                         }
69
70                         if (fmt_percent) {
71                                 ret += hpp__call_print_fn(hpp, print_fn, fmt, len,
72                                                           100.0 * period / total);
73                         } else {
74                                 ret += hpp__call_print_fn(hpp, print_fn, fmt,
75                                                           len, period);
76                         }
77
78                         prev_idx = perf_evsel__group_idx(evsel);
79                 }
80
81                 idx_delta = nr_members - prev_idx - 1;
82
83                 while (idx_delta--) {
84                         /*
85                          * zero-fill group members at last which have no sample
86                          */
87                         if (fmt_percent) {
88                                 ret += hpp__call_print_fn(hpp, print_fn,
89                                                           fmt, len, 0.0);
90                         } else {
91                                 ret += hpp__call_print_fn(hpp, print_fn,
92                                                           fmt, len, 0ULL);
93                         }
94                 }
95         }
96
97         /*
98          * Restore original buf and size as it's where caller expects
99          * the result will be saved.
100          */
101         hpp->buf = buf;
102         hpp->size = size;
103
104         return ret;
105 }
106
107 int hpp__fmt(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
108              struct hist_entry *he, hpp_field_fn get_field,
109              const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent)
110 {
111         int len = fmt->user_len ?: fmt->len;
112
113         if (symbol_conf.field_sep) {
114                 return __hpp__fmt(hpp, he, get_field, fmtstr, 1,
115                                   print_fn, fmt_percent);
116         }
117
118         if (fmt_percent)
119                 len -= 2; /* 2 for a space and a % sign */
120         else
121                 len -= 1;
122
123         return  __hpp__fmt(hpp, he, get_field, fmtstr, len, print_fn, fmt_percent);
124 }
125
126 int hpp__fmt_acc(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
127                  struct hist_entry *he, hpp_field_fn get_field,
128                  const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent)
129 {
130         if (!symbol_conf.cumulate_callchain) {
131                 int len = fmt->user_len ?: fmt->len;
132                 return snprintf(hpp->buf, hpp->size, " %*s", len - 1, "N/A");
133         }
134
135         return hpp__fmt(fmt, hpp, he, get_field, fmtstr, print_fn, fmt_percent);
136 }
137
138 static int field_cmp(u64 field_a, u64 field_b)
139 {
140         if (field_a > field_b)
141                 return 1;
142         if (field_a < field_b)
143                 return -1;
144         return 0;
145 }
146
147 static int __hpp__sort(struct hist_entry *a, struct hist_entry *b,
148                        hpp_field_fn get_field)
149 {
150         s64 ret;
151         int i, nr_members;
152         struct perf_evsel *evsel;
153         struct hist_entry *pair;
154         u64 *fields_a, *fields_b;
155
156         ret = field_cmp(get_field(a), get_field(b));
157         if (ret || !symbol_conf.event_group)
158                 return ret;
159
160         evsel = hists_to_evsel(a->hists);
161         if (!perf_evsel__is_group_event(evsel))
162                 return ret;
163
164         nr_members = evsel->nr_members;
165         fields_a = calloc(nr_members, sizeof(*fields_a));
166         fields_b = calloc(nr_members, sizeof(*fields_b));
167
168         if (!fields_a || !fields_b)
169                 goto out;
170
171         list_for_each_entry(pair, &a->pairs.head, pairs.node) {
172                 evsel = hists_to_evsel(pair->hists);
173                 fields_a[perf_evsel__group_idx(evsel)] = get_field(pair);
174         }
175
176         list_for_each_entry(pair, &b->pairs.head, pairs.node) {
177                 evsel = hists_to_evsel(pair->hists);
178                 fields_b[perf_evsel__group_idx(evsel)] = get_field(pair);
179         }
180
181         for (i = 1; i < nr_members; i++) {
182                 ret = field_cmp(fields_a[i], fields_b[i]);
183                 if (ret)
184                         break;
185         }
186
187 out:
188         free(fields_a);
189         free(fields_b);
190
191         return ret;
192 }
193
194 static int __hpp__sort_acc(struct hist_entry *a, struct hist_entry *b,
195                            hpp_field_fn get_field)
196 {
197         s64 ret = 0;
198
199         if (symbol_conf.cumulate_callchain) {
200                 /*
201                  * Put caller above callee when they have equal period.
202                  */
203                 ret = field_cmp(get_field(a), get_field(b));
204                 if (ret)
205                         return ret;
206
207                 ret = b->callchain->max_depth - a->callchain->max_depth;
208         }
209         return ret;
210 }
211
212 static int hpp__width_fn(struct perf_hpp_fmt *fmt,
213                          struct perf_hpp *hpp __maybe_unused,
214                          struct perf_evsel *evsel)
215 {
216         int len = fmt->user_len ?: fmt->len;
217
218         if (symbol_conf.event_group)
219                 len = max(len, evsel->nr_members * fmt->len);
220
221         if (len < (int)strlen(fmt->name))
222                 len = strlen(fmt->name);
223
224         return len;
225 }
226
227 static int hpp__header_fn(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
228                           struct perf_evsel *evsel)
229 {
230         int len = hpp__width_fn(fmt, hpp, evsel);
231         return scnprintf(hpp->buf, hpp->size, "%*s", len, fmt->name);
232 }
233
234 static int hpp_color_scnprintf(struct perf_hpp *hpp, const char *fmt, ...)
235 {
236         va_list args;
237         ssize_t ssize = hpp->size;
238         double percent;
239         int ret, len;
240
241         va_start(args, fmt);
242         len = va_arg(args, int);
243         percent = va_arg(args, double);
244         ret = percent_color_len_snprintf(hpp->buf, hpp->size, fmt, len, percent);
245         va_end(args);
246
247         return (ret >= ssize) ? (ssize - 1) : ret;
248 }
249
250 static int hpp_entry_scnprintf(struct perf_hpp *hpp, const char *fmt, ...)
251 {
252         va_list args;
253         ssize_t ssize = hpp->size;
254         int ret;
255
256         va_start(args, fmt);
257         ret = vsnprintf(hpp->buf, hpp->size, fmt, args);
258         va_end(args);
259
260         return (ret >= ssize) ? (ssize - 1) : ret;
261 }
262
263 #define __HPP_COLOR_PERCENT_FN(_type, _field)                                   \
264 static u64 he_get_##_field(struct hist_entry *he)                               \
265 {                                                                               \
266         return he->stat._field;                                                 \
267 }                                                                               \
268                                                                                 \
269 static int hpp__color_##_type(struct perf_hpp_fmt *fmt,                         \
270                               struct perf_hpp *hpp, struct hist_entry *he)      \
271 {                                                                               \
272         return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%",              \
273                         hpp_color_scnprintf, true);                             \
274 }
275
276 #define __HPP_ENTRY_PERCENT_FN(_type, _field)                                   \
277 static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,                         \
278                               struct perf_hpp *hpp, struct hist_entry *he)      \
279 {                                                                               \
280         return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%",              \
281                         hpp_entry_scnprintf, true);                             \
282 }
283
284 #define __HPP_SORT_FN(_type, _field)                                            \
285 static int64_t hpp__sort_##_type(struct hist_entry *a, struct hist_entry *b)    \
286 {                                                                               \
287         return __hpp__sort(a, b, he_get_##_field);                              \
288 }
289
290 #define __HPP_COLOR_ACC_PERCENT_FN(_type, _field)                               \
291 static u64 he_get_acc_##_field(struct hist_entry *he)                           \
292 {                                                                               \
293         return he->stat_acc->_field;                                            \
294 }                                                                               \
295                                                                                 \
296 static int hpp__color_##_type(struct perf_hpp_fmt *fmt,                         \
297                               struct perf_hpp *hpp, struct hist_entry *he)      \
298 {                                                                               \
299         return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%",      \
300                             hpp_color_scnprintf, true);                         \
301 }
302
303 #define __HPP_ENTRY_ACC_PERCENT_FN(_type, _field)                               \
304 static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,                         \
305                               struct perf_hpp *hpp, struct hist_entry *he)      \
306 {                                                                               \
307         return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%",      \
308                             hpp_entry_scnprintf, true);                         \
309 }
310
311 #define __HPP_SORT_ACC_FN(_type, _field)                                        \
312 static int64_t hpp__sort_##_type(struct hist_entry *a, struct hist_entry *b)    \
313 {                                                                               \
314         return __hpp__sort_acc(a, b, he_get_acc_##_field);                      \
315 }
316
317 #define __HPP_ENTRY_RAW_FN(_type, _field)                                       \
318 static u64 he_get_raw_##_field(struct hist_entry *he)                           \
319 {                                                                               \
320         return he->stat._field;                                                 \
321 }                                                                               \
322                                                                                 \
323 static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,                         \
324                               struct perf_hpp *hpp, struct hist_entry *he)      \
325 {                                                                               \
326         return hpp__fmt(fmt, hpp, he, he_get_raw_##_field, " %*"PRIu64,         \
327                         hpp_entry_scnprintf, false);                            \
328 }
329
330 #define __HPP_SORT_RAW_FN(_type, _field)                                        \
331 static int64_t hpp__sort_##_type(struct hist_entry *a, struct hist_entry *b)    \
332 {                                                                               \
333         return __hpp__sort(a, b, he_get_raw_##_field);                          \
334 }
335
336
337 #define HPP_PERCENT_FNS(_type, _field)                                  \
338 __HPP_COLOR_PERCENT_FN(_type, _field)                                   \
339 __HPP_ENTRY_PERCENT_FN(_type, _field)                                   \
340 __HPP_SORT_FN(_type, _field)
341
342 #define HPP_PERCENT_ACC_FNS(_type, _field)                              \
343 __HPP_COLOR_ACC_PERCENT_FN(_type, _field)                               \
344 __HPP_ENTRY_ACC_PERCENT_FN(_type, _field)                               \
345 __HPP_SORT_ACC_FN(_type, _field)
346
347 #define HPP_RAW_FNS(_type, _field)                                      \
348 __HPP_ENTRY_RAW_FN(_type, _field)                                       \
349 __HPP_SORT_RAW_FN(_type, _field)
350
351 HPP_PERCENT_FNS(overhead, period)
352 HPP_PERCENT_FNS(overhead_sys, period_sys)
353 HPP_PERCENT_FNS(overhead_us, period_us)
354 HPP_PERCENT_FNS(overhead_guest_sys, period_guest_sys)
355 HPP_PERCENT_FNS(overhead_guest_us, period_guest_us)
356 HPP_PERCENT_ACC_FNS(overhead_acc, period)
357
358 HPP_RAW_FNS(samples, nr_events)
359 HPP_RAW_FNS(period, period)
360
361 static int64_t hpp__nop_cmp(struct hist_entry *a __maybe_unused,
362                             struct hist_entry *b __maybe_unused)
363 {
364         return 0;
365 }
366
367 #define HPP__COLOR_PRINT_FNS(_name, _fn)                \
368         {                                               \
369                 .name   = _name,                        \
370                 .header = hpp__header_fn,               \
371                 .width  = hpp__width_fn,                \
372                 .color  = hpp__color_ ## _fn,           \
373                 .entry  = hpp__entry_ ## _fn,           \
374                 .cmp    = hpp__nop_cmp,                 \
375                 .collapse = hpp__nop_cmp,               \
376                 .sort   = hpp__sort_ ## _fn,            \
377         }
378
379 #define HPP__COLOR_ACC_PRINT_FNS(_name, _fn)            \
380         {                                               \
381                 .name   = _name,                        \
382                 .header = hpp__header_fn,               \
383                 .width  = hpp__width_fn,                \
384                 .color  = hpp__color_ ## _fn,           \
385                 .entry  = hpp__entry_ ## _fn,           \
386                 .cmp    = hpp__nop_cmp,                 \
387                 .collapse = hpp__nop_cmp,               \
388                 .sort   = hpp__sort_ ## _fn,            \
389         }
390
391 #define HPP__PRINT_FNS(_name, _fn)                      \
392         {                                               \
393                 .name   = _name,                        \
394                 .header = hpp__header_fn,               \
395                 .width  = hpp__width_fn,                \
396                 .entry  = hpp__entry_ ## _fn,           \
397                 .cmp    = hpp__nop_cmp,                 \
398                 .collapse = hpp__nop_cmp,               \
399                 .sort   = hpp__sort_ ## _fn,            \
400         }
401
402 struct perf_hpp_fmt perf_hpp__format[] = {
403         HPP__COLOR_PRINT_FNS("Overhead", overhead),
404         HPP__COLOR_PRINT_FNS("sys", overhead_sys),
405         HPP__COLOR_PRINT_FNS("usr", overhead_us),
406         HPP__COLOR_PRINT_FNS("guest sys", overhead_guest_sys),
407         HPP__COLOR_PRINT_FNS("guest usr", overhead_guest_us),
408         HPP__COLOR_ACC_PRINT_FNS("Children", overhead_acc),
409         HPP__PRINT_FNS("Samples", samples),
410         HPP__PRINT_FNS("Period", period)
411 };
412
413 LIST_HEAD(perf_hpp__list);
414 LIST_HEAD(perf_hpp__sort_list);
415
416
417 #undef HPP__COLOR_PRINT_FNS
418 #undef HPP__COLOR_ACC_PRINT_FNS
419 #undef HPP__PRINT_FNS
420
421 #undef HPP_PERCENT_FNS
422 #undef HPP_PERCENT_ACC_FNS
423 #undef HPP_RAW_FNS
424
425 #undef __HPP_HEADER_FN
426 #undef __HPP_WIDTH_FN
427 #undef __HPP_COLOR_PERCENT_FN
428 #undef __HPP_ENTRY_PERCENT_FN
429 #undef __HPP_COLOR_ACC_PERCENT_FN
430 #undef __HPP_ENTRY_ACC_PERCENT_FN
431 #undef __HPP_ENTRY_RAW_FN
432 #undef __HPP_SORT_FN
433 #undef __HPP_SORT_ACC_FN
434 #undef __HPP_SORT_RAW_FN
435
436
437 void perf_hpp__init(void)
438 {
439         struct list_head *list;
440         int i;
441
442         for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
443                 struct perf_hpp_fmt *fmt = &perf_hpp__format[i];
444
445                 INIT_LIST_HEAD(&fmt->list);
446
447                 /* sort_list may be linked by setup_sorting() */
448                 if (fmt->sort_list.next == NULL)
449                         INIT_LIST_HEAD(&fmt->sort_list);
450         }
451
452         /*
453          * If user specified field order, no need to setup default fields.
454          */
455         if (is_strict_order(field_order))
456                 return;
457
458         if (symbol_conf.cumulate_callchain) {
459                 perf_hpp__column_enable(PERF_HPP__OVERHEAD_ACC);
460                 perf_hpp__format[PERF_HPP__OVERHEAD].name = "Self";
461         }
462
463         perf_hpp__column_enable(PERF_HPP__OVERHEAD);
464
465         if (symbol_conf.show_cpu_utilization) {
466                 perf_hpp__column_enable(PERF_HPP__OVERHEAD_SYS);
467                 perf_hpp__column_enable(PERF_HPP__OVERHEAD_US);
468
469                 if (perf_guest) {
470                         perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_SYS);
471                         perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_US);
472                 }
473         }
474
475         if (symbol_conf.show_nr_samples)
476                 perf_hpp__column_enable(PERF_HPP__SAMPLES);
477
478         if (symbol_conf.show_total_period)
479                 perf_hpp__column_enable(PERF_HPP__PERIOD);
480
481         /* prepend overhead field for backward compatiblity.  */
482         list = &perf_hpp__format[PERF_HPP__OVERHEAD].sort_list;
483         if (list_empty(list))
484                 list_add(list, &perf_hpp__sort_list);
485
486         if (symbol_conf.cumulate_callchain) {
487                 list = &perf_hpp__format[PERF_HPP__OVERHEAD_ACC].sort_list;
488                 if (list_empty(list))
489                         list_add(list, &perf_hpp__sort_list);
490         }
491 }
492
493 void perf_hpp__column_register(struct perf_hpp_fmt *format)
494 {
495         list_add_tail(&format->list, &perf_hpp__list);
496 }
497
498 void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
499 {
500         list_del(&format->list);
501 }
502
503 void perf_hpp__register_sort_field(struct perf_hpp_fmt *format)
504 {
505         list_add_tail(&format->sort_list, &perf_hpp__sort_list);
506 }
507
508 void perf_hpp__column_enable(unsigned col)
509 {
510         BUG_ON(col >= PERF_HPP__MAX_INDEX);
511         perf_hpp__column_register(&perf_hpp__format[col]);
512 }
513
514 void perf_hpp__column_disable(unsigned col)
515 {
516         BUG_ON(col >= PERF_HPP__MAX_INDEX);
517         perf_hpp__column_unregister(&perf_hpp__format[col]);
518 }
519
520 void perf_hpp__cancel_cumulate(void)
521 {
522         if (is_strict_order(field_order))
523                 return;
524
525         perf_hpp__column_disable(PERF_HPP__OVERHEAD_ACC);
526         perf_hpp__format[PERF_HPP__OVERHEAD].name = "Overhead";
527 }
528
529 void perf_hpp__setup_output_field(void)
530 {
531         struct perf_hpp_fmt *fmt;
532
533         /* append sort keys to output field */
534         perf_hpp__for_each_sort_list(fmt) {
535                 if (!list_empty(&fmt->list))
536                         continue;
537
538                 /*
539                  * sort entry fields are dynamically created,
540                  * so they can share a same sort key even though
541                  * the list is empty.
542                  */
543                 if (perf_hpp__is_sort_entry(fmt)) {
544                         struct perf_hpp_fmt *pos;
545
546                         perf_hpp__for_each_format(pos) {
547                                 if (perf_hpp__same_sort_entry(pos, fmt))
548                                         goto next;
549                         }
550                 }
551
552                 perf_hpp__column_register(fmt);
553 next:
554                 continue;
555         }
556 }
557
558 void perf_hpp__append_sort_keys(void)
559 {
560         struct perf_hpp_fmt *fmt;
561
562         /* append output fields to sort keys */
563         perf_hpp__for_each_format(fmt) {
564                 if (!list_empty(&fmt->sort_list))
565                         continue;
566
567                 /*
568                  * sort entry fields are dynamically created,
569                  * so they can share a same sort key even though
570                  * the list is empty.
571                  */
572                 if (perf_hpp__is_sort_entry(fmt)) {
573                         struct perf_hpp_fmt *pos;
574
575                         perf_hpp__for_each_sort_list(pos) {
576                                 if (perf_hpp__same_sort_entry(pos, fmt))
577                                         goto next;
578                         }
579                 }
580
581                 perf_hpp__register_sort_field(fmt);
582 next:
583                 continue;
584         }
585 }
586
587 void perf_hpp__reset_output_field(void)
588 {
589         struct perf_hpp_fmt *fmt, *tmp;
590
591         /* reset output fields */
592         perf_hpp__for_each_format_safe(fmt, tmp) {
593                 list_del_init(&fmt->list);
594                 list_del_init(&fmt->sort_list);
595         }
596
597         /* reset sort keys */
598         perf_hpp__for_each_sort_list_safe(fmt, tmp) {
599                 list_del_init(&fmt->list);
600                 list_del_init(&fmt->sort_list);
601         }
602 }
603
604 /*
605  * See hists__fprintf to match the column widths
606  */
607 unsigned int hists__sort_list_width(struct hists *hists)
608 {
609         struct perf_hpp_fmt *fmt;
610         int ret = 0;
611         bool first = true;
612         struct perf_hpp dummy_hpp;
613
614         perf_hpp__for_each_format(fmt) {
615                 if (perf_hpp__should_skip(fmt))
616                         continue;
617
618                 if (first)
619                         first = false;
620                 else
621                         ret += 2;
622
623                 ret += fmt->width(fmt, &dummy_hpp, hists_to_evsel(hists));
624         }
625
626         if (verbose && sort__has_sym) /* Addr + origin */
627                 ret += 3 + BITS_PER_LONG / 4;
628
629         return ret;
630 }
631
632 void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists)
633 {
634         int idx;
635
636         if (perf_hpp__is_sort_entry(fmt))
637                 return perf_hpp__reset_sort_width(fmt, hists);
638
639         for (idx = 0; idx < PERF_HPP__MAX_INDEX; idx++) {
640                 if (fmt == &perf_hpp__format[idx])
641                         break;
642         }
643
644         if (idx == PERF_HPP__MAX_INDEX)
645                 return;
646
647         switch (idx) {
648         case PERF_HPP__OVERHEAD:
649         case PERF_HPP__OVERHEAD_SYS:
650         case PERF_HPP__OVERHEAD_US:
651         case PERF_HPP__OVERHEAD_ACC:
652                 fmt->len = 8;
653                 break;
654
655         case PERF_HPP__OVERHEAD_GUEST_SYS:
656         case PERF_HPP__OVERHEAD_GUEST_US:
657                 fmt->len = 9;
658                 break;
659
660         case PERF_HPP__SAMPLES:
661         case PERF_HPP__PERIOD:
662                 fmt->len = 12;
663                 break;
664
665         default:
666                 break;
667         }
668 }
669
670 void perf_hpp__set_user_width(const char *width_list_str)
671 {
672         struct perf_hpp_fmt *fmt;
673         const char *ptr = width_list_str;
674
675         perf_hpp__for_each_format(fmt) {
676                 char *p;
677
678                 int len = strtol(ptr, &p, 10);
679                 fmt->user_len = len;
680
681                 if (*p == ',')
682                         ptr = p + 1;
683                 else
684                         break;
685         }
686 }