4 * Builtin diff command: Analyze two perf.data input files, look up and read
5 * DSOs and symbol information, sort them and produce a diff.
9 #include "util/debug.h"
10 #include "util/event.h"
11 #include "util/hist.h"
12 #include "util/evsel.h"
13 #include "util/evlist.h"
14 #include "util/session.h"
15 #include "util/tool.h"
16 #include "util/sort.h"
17 #include "util/symbol.h"
18 #include "util/util.h"
19 #include "util/data.h"
24 /* Diff command specific HPP columns. */
26 PERF_HPP_DIFF__BASELINE
,
27 PERF_HPP_DIFF__PERIOD
,
28 PERF_HPP_DIFF__PERIOD_BASELINE
,
31 PERF_HPP_DIFF__WEIGHTED_DIFF
,
32 PERF_HPP_DIFF__FORMULA
,
34 PERF_HPP_DIFF__MAX_INDEX
38 struct perf_hpp_fmt fmt
;
45 struct perf_session
*session
;
46 struct perf_data_file file
;
49 struct diff_hpp_fmt fmt
[PERF_HPP_DIFF__MAX_INDEX
];
52 static struct data__file
*data__files
;
53 static int data__files_cnt
;
55 #define data__for_each_file_start(i, d, s) \
56 for (i = s, d = &data__files[s]; \
57 i < data__files_cnt; \
58 i++, d = &data__files[i])
60 #define data__for_each_file(i, d) data__for_each_file_start(i, d, 0)
61 #define data__for_each_file_new(i, d) data__for_each_file_start(i, d, 1)
64 static bool show_period
;
65 static bool show_formula
;
66 static bool show_baseline_only
;
67 static unsigned int sort_compute
;
69 static s64 compute_wdiff_w1
;
70 static s64 compute_wdiff_w2
;
75 COMPUTE_WEIGHTED_DIFF
,
79 const char *compute_names
[COMPUTE_MAX
] = {
80 [COMPUTE_DELTA
] = "delta",
81 [COMPUTE_RATIO
] = "ratio",
82 [COMPUTE_WEIGHTED_DIFF
] = "wdiff",
87 static int compute_2_hpp
[COMPUTE_MAX
] = {
88 [COMPUTE_DELTA
] = PERF_HPP_DIFF__DELTA
,
89 [COMPUTE_RATIO
] = PERF_HPP_DIFF__RATIO
,
90 [COMPUTE_WEIGHTED_DIFF
] = PERF_HPP_DIFF__WEIGHTED_DIFF
,
93 #define MAX_COL_WIDTH 70
95 static struct header_column
{
98 } columns
[PERF_HPP_DIFF__MAX_INDEX
] = {
99 [PERF_HPP_DIFF__BASELINE
] = {
102 [PERF_HPP_DIFF__PERIOD
] = {
106 [PERF_HPP_DIFF__PERIOD_BASELINE
] = {
107 .name
= "Base period",
110 [PERF_HPP_DIFF__DELTA
] = {
114 [PERF_HPP_DIFF__RATIO
] = {
118 [PERF_HPP_DIFF__WEIGHTED_DIFF
] = {
119 .name
= "Weighted diff",
122 [PERF_HPP_DIFF__FORMULA
] = {
124 .width
= MAX_COL_WIDTH
,
128 static int setup_compute_opt_wdiff(char *opt
)
138 w2_str
= strchr(opt
, ',');
146 compute_wdiff_w1
= strtol(w1_str
, NULL
, 10);
147 compute_wdiff_w2
= strtol(w2_str
, NULL
, 10);
149 if (!compute_wdiff_w1
|| !compute_wdiff_w2
)
152 pr_debug("compute wdiff w1(%" PRId64
") w2(%" PRId64
")\n",
153 compute_wdiff_w1
, compute_wdiff_w2
);
159 pr_err("Failed: wrong weight data, use 'wdiff:w1,w2'\n");
164 static int setup_compute_opt(char *opt
)
166 if (compute
== COMPUTE_WEIGHTED_DIFF
)
167 return setup_compute_opt_wdiff(opt
);
170 pr_err("Failed: extra option specified '%s'", opt
);
177 static int setup_compute(const struct option
*opt
, const char *str
,
178 int unset __maybe_unused
)
180 int *cp
= (int *) opt
->value
;
181 char *cstr
= (char *) str
;
191 option
= strchr(str
, ':');
193 unsigned len
= option
++ - str
;
196 * The str data are not writeable, so we need
197 * to use another buffer.
200 /* No option value is longer. */
201 if (len
>= sizeof(buf
))
204 strncpy(buf
, str
, len
);
209 for (i
= 0; i
< COMPUTE_MAX
; i
++)
210 if (!strcmp(cstr
, compute_names
[i
])) {
212 return setup_compute_opt(option
);
215 pr_err("Failed: '%s' is not computation method "
216 "(use 'delta','ratio' or 'wdiff')\n", str
);
220 static double period_percent(struct hist_entry
*he
, u64 period
)
222 u64 total
= hists__total_period(he
->hists
);
224 return (period
* 100.0) / total
;
227 static double compute_delta(struct hist_entry
*he
, struct hist_entry
*pair
)
229 double old_percent
= period_percent(he
, he
->stat
.period
);
230 double new_percent
= period_percent(pair
, pair
->stat
.period
);
232 pair
->diff
.period_ratio_delta
= new_percent
- old_percent
;
233 pair
->diff
.computed
= true;
234 return pair
->diff
.period_ratio_delta
;
237 static double compute_ratio(struct hist_entry
*he
, struct hist_entry
*pair
)
239 double old_period
= he
->stat
.period
?: 1;
240 double new_period
= pair
->stat
.period
;
242 pair
->diff
.computed
= true;
243 pair
->diff
.period_ratio
= new_period
/ old_period
;
244 return pair
->diff
.period_ratio
;
247 static s64
compute_wdiff(struct hist_entry
*he
, struct hist_entry
*pair
)
249 u64 old_period
= he
->stat
.period
;
250 u64 new_period
= pair
->stat
.period
;
252 pair
->diff
.computed
= true;
253 pair
->diff
.wdiff
= new_period
* compute_wdiff_w2
-
254 old_period
* compute_wdiff_w1
;
256 return pair
->diff
.wdiff
;
259 static int formula_delta(struct hist_entry
*he
, struct hist_entry
*pair
,
260 char *buf
, size_t size
)
262 u64 he_total
= he
->hists
->stats
.total_period
;
263 u64 pair_total
= pair
->hists
->stats
.total_period
;
265 if (symbol_conf
.filter_relative
) {
266 he_total
= he
->hists
->stats
.total_non_filtered_period
;
267 pair_total
= pair
->hists
->stats
.total_non_filtered_period
;
269 return scnprintf(buf
, size
,
270 "(%" PRIu64
" * 100 / %" PRIu64
") - "
271 "(%" PRIu64
" * 100 / %" PRIu64
")",
272 pair
->stat
.period
, pair_total
,
273 he
->stat
.period
, he_total
);
276 static int formula_ratio(struct hist_entry
*he
, struct hist_entry
*pair
,
277 char *buf
, size_t size
)
279 double old_period
= he
->stat
.period
;
280 double new_period
= pair
->stat
.period
;
282 return scnprintf(buf
, size
, "%.0F / %.0F", new_period
, old_period
);
285 static int formula_wdiff(struct hist_entry
*he
, struct hist_entry
*pair
,
286 char *buf
, size_t size
)
288 u64 old_period
= he
->stat
.period
;
289 u64 new_period
= pair
->stat
.period
;
291 return scnprintf(buf
, size
,
292 "(%" PRIu64
" * " "%" PRId64
") - (%" PRIu64
" * " "%" PRId64
")",
293 new_period
, compute_wdiff_w2
, old_period
, compute_wdiff_w1
);
296 static int formula_fprintf(struct hist_entry
*he
, struct hist_entry
*pair
,
297 char *buf
, size_t size
)
301 return formula_delta(he
, pair
, buf
, size
);
303 return formula_ratio(he
, pair
, buf
, size
);
304 case COMPUTE_WEIGHTED_DIFF
:
305 return formula_wdiff(he
, pair
, buf
, size
);
313 static int hists__add_entry(struct hists
*hists
,
314 struct addr_location
*al
, u64 period
,
315 u64 weight
, u64 transaction
)
317 if (__hists__add_entry(hists
, al
, NULL
, NULL
, NULL
, period
, weight
,
318 transaction
, true) != NULL
)
323 static int diff__process_sample_event(struct perf_tool
*tool __maybe_unused
,
324 union perf_event
*event
,
325 struct perf_sample
*sample
,
326 struct perf_evsel
*evsel
,
327 struct machine
*machine
)
329 struct addr_location al
;
330 struct hists
*hists
= evsel__hists(evsel
);
332 if (perf_event__preprocess_sample(event
, machine
, &al
, sample
) < 0) {
333 pr_warning("problem processing %d event, skipping it.\n",
338 if (hists__add_entry(hists
, &al
, sample
->period
,
339 sample
->weight
, sample
->transaction
)) {
340 pr_warning("problem incrementing symbol period, skipping event\n");
345 * The total_period is updated here before going to the output
346 * tree since normally only the baseline hists will call
347 * hists__output_resort() and precompute needs the total
348 * period in order to sort entries by percentage delta.
350 hists
->stats
.total_period
+= sample
->period
;
352 hists
->stats
.total_non_filtered_period
+= sample
->period
;
357 static struct perf_tool tool
= {
358 .sample
= diff__process_sample_event
,
359 .mmap
= perf_event__process_mmap
,
360 .mmap2
= perf_event__process_mmap2
,
361 .comm
= perf_event__process_comm
,
362 .exit
= perf_event__process_exit
,
363 .fork
= perf_event__process_fork
,
364 .lost
= perf_event__process_lost
,
365 .ordered_events
= true,
366 .ordering_requires_timestamps
= true,
369 static struct perf_evsel
*evsel_match(struct perf_evsel
*evsel
,
370 struct perf_evlist
*evlist
)
372 struct perf_evsel
*e
;
374 evlist__for_each(evlist
, e
) {
375 if (perf_evsel__match2(evsel
, e
))
382 static void perf_evlist__collapse_resort(struct perf_evlist
*evlist
)
384 struct perf_evsel
*evsel
;
386 evlist__for_each(evlist
, evsel
) {
387 struct hists
*hists
= evsel__hists(evsel
);
389 hists__collapse_resort(hists
, NULL
);
393 static struct hist_entry
*
394 get_pair_data(struct hist_entry
*he
, struct data__file
*d
)
396 if (hist_entry__has_pairs(he
)) {
397 struct hist_entry
*pair
;
399 list_for_each_entry(pair
, &he
->pairs
.head
, pairs
.node
)
400 if (pair
->hists
== d
->hists
)
407 static struct hist_entry
*
408 get_pair_fmt(struct hist_entry
*he
, struct diff_hpp_fmt
*dfmt
)
410 void *ptr
= dfmt
- dfmt
->idx
;
411 struct data__file
*d
= container_of(ptr
, struct data__file
, fmt
);
413 return get_pair_data(he
, d
);
416 static void hists__baseline_only(struct hists
*hists
)
418 struct rb_root
*root
;
419 struct rb_node
*next
;
421 if (sort__need_collapse
)
422 root
= &hists
->entries_collapsed
;
424 root
= hists
->entries_in
;
426 next
= rb_first(root
);
427 while (next
!= NULL
) {
428 struct hist_entry
*he
= rb_entry(next
, struct hist_entry
, rb_node_in
);
430 next
= rb_next(&he
->rb_node_in
);
431 if (!hist_entry__next_pair(he
)) {
432 rb_erase(&he
->rb_node_in
, root
);
433 hist_entry__delete(he
);
438 static void hists__precompute(struct hists
*hists
)
440 struct rb_root
*root
;
441 struct rb_node
*next
;
443 if (sort__need_collapse
)
444 root
= &hists
->entries_collapsed
;
446 root
= hists
->entries_in
;
448 next
= rb_first(root
);
449 while (next
!= NULL
) {
450 struct hist_entry
*he
, *pair
;
452 he
= rb_entry(next
, struct hist_entry
, rb_node_in
);
453 next
= rb_next(&he
->rb_node_in
);
455 pair
= get_pair_data(he
, &data__files
[sort_compute
]);
461 compute_delta(he
, pair
);
464 compute_ratio(he
, pair
);
466 case COMPUTE_WEIGHTED_DIFF
:
467 compute_wdiff(he
, pair
);
475 static int64_t cmp_doubles(double l
, double r
)
486 __hist_entry__cmp_compute(struct hist_entry
*left
, struct hist_entry
*right
,
492 double l
= left
->diff
.period_ratio_delta
;
493 double r
= right
->diff
.period_ratio_delta
;
495 return cmp_doubles(l
, r
);
499 double l
= left
->diff
.period_ratio
;
500 double r
= right
->diff
.period_ratio
;
502 return cmp_doubles(l
, r
);
504 case COMPUTE_WEIGHTED_DIFF
:
506 s64 l
= left
->diff
.wdiff
;
507 s64 r
= right
->diff
.wdiff
;
519 hist_entry__cmp_compute(struct hist_entry
*left
, struct hist_entry
*right
,
522 bool pairs_left
= hist_entry__has_pairs(left
);
523 bool pairs_right
= hist_entry__has_pairs(right
);
524 struct hist_entry
*p_right
, *p_left
;
526 if (!pairs_left
&& !pairs_right
)
529 if (!pairs_left
|| !pairs_right
)
530 return pairs_left
? -1 : 1;
532 p_left
= get_pair_data(left
, &data__files
[sort_compute
]);
533 p_right
= get_pair_data(right
, &data__files
[sort_compute
]);
535 if (!p_left
&& !p_right
)
538 if (!p_left
|| !p_right
)
539 return p_left
? -1 : 1;
542 * We have 2 entries of same kind, let's
543 * make the data comparison.
545 return __hist_entry__cmp_compute(p_left
, p_right
, c
);
549 hist_entry__cmp_nop(struct hist_entry
*left __maybe_unused
,
550 struct hist_entry
*right __maybe_unused
)
556 hist_entry__cmp_baseline(struct hist_entry
*left
, struct hist_entry
*right
)
561 if (left
->stat
.period
== right
->stat
.period
)
563 return left
->stat
.period
> right
->stat
.period
? 1 : -1;
567 hist_entry__cmp_delta(struct hist_entry
*left
, struct hist_entry
*right
)
569 return hist_entry__cmp_compute(right
, left
, COMPUTE_DELTA
);
573 hist_entry__cmp_ratio(struct hist_entry
*left
, struct hist_entry
*right
)
575 return hist_entry__cmp_compute(right
, left
, COMPUTE_RATIO
);
579 hist_entry__cmp_wdiff(struct hist_entry
*left
, struct hist_entry
*right
)
581 return hist_entry__cmp_compute(right
, left
, COMPUTE_WEIGHTED_DIFF
);
584 static void hists__process(struct hists
*hists
)
586 if (show_baseline_only
)
587 hists__baseline_only(hists
);
590 hists__precompute(hists
);
592 hists__output_resort(hists
, NULL
);
594 hists__fprintf(hists
, true, 0, 0, 0, stdout
);
597 static void data__fprintf(void)
599 struct data__file
*d
;
602 fprintf(stdout
, "# Data files:\n");
604 data__for_each_file(i
, d
)
605 fprintf(stdout
, "# [%d] %s %s\n",
606 d
->idx
, d
->file
.path
,
607 !d
->idx
? "(Baseline)" : "");
609 fprintf(stdout
, "#\n");
612 static void data_process(void)
614 struct perf_evlist
*evlist_base
= data__files
[0].session
->evlist
;
615 struct perf_evsel
*evsel_base
;
618 evlist__for_each(evlist_base
, evsel_base
) {
619 struct hists
*hists_base
= evsel__hists(evsel_base
);
620 struct data__file
*d
;
623 data__for_each_file_new(i
, d
) {
624 struct perf_evlist
*evlist
= d
->session
->evlist
;
625 struct perf_evsel
*evsel
;
628 evsel
= evsel_match(evsel_base
, evlist
);
632 hists
= evsel__hists(evsel
);
635 hists__match(hists_base
, hists
);
637 if (!show_baseline_only
)
638 hists__link(hists_base
, hists
);
641 fprintf(stdout
, "%s# Event '%s'\n#\n", first
? "" : "\n",
642 perf_evsel__name(evsel_base
));
646 if (verbose
|| data__files_cnt
> 2)
649 hists__process(hists_base
);
653 static void data__free(struct data__file
*d
)
657 for (col
= 0; col
< PERF_HPP_DIFF__MAX_INDEX
; col
++) {
658 struct diff_hpp_fmt
*fmt
= &d
->fmt
[col
];
664 static int __cmd_diff(void)
666 struct data__file
*d
;
667 int ret
= -EINVAL
, i
;
669 data__for_each_file(i
, d
) {
670 d
->session
= perf_session__new(&d
->file
, false, &tool
);
672 pr_err("Failed to open %s\n", d
->file
.path
);
677 ret
= perf_session__process_events(d
->session
, &tool
);
679 pr_err("Failed to process %s\n", d
->file
.path
);
683 perf_evlist__collapse_resort(d
->session
->evlist
);
689 data__for_each_file(i
, d
) {
691 perf_session__delete(d
->session
);
700 static const char * const diff_usage
[] = {
701 "perf diff [<options>] [old_file] [new_file]",
705 static const struct option options
[] = {
706 OPT_INCR('v', "verbose", &verbose
,
707 "be more verbose (show symbol address, etc)"),
708 OPT_BOOLEAN('b', "baseline-only", &show_baseline_only
,
709 "Show only items with match in baseline"),
710 OPT_CALLBACK('c', "compute", &compute
,
711 "delta,ratio,wdiff:w1,w2 (default delta)",
712 "Entries differential computation selection",
714 OPT_BOOLEAN('p', "period", &show_period
,
715 "Show period values."),
716 OPT_BOOLEAN('F', "formula", &show_formula
,
718 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace
,
719 "dump raw trace in ASCII"),
720 OPT_BOOLEAN('f', "force", &force
, "don't complain, do it"),
721 OPT_BOOLEAN('m', "modules", &symbol_conf
.use_modules
,
722 "load module symbols - WARNING: use only with -k and LIVE kernel"),
723 OPT_STRING('d', "dsos", &symbol_conf
.dso_list_str
, "dso[,dso...]",
724 "only consider symbols in these dsos"),
725 OPT_STRING('C', "comms", &symbol_conf
.comm_list_str
, "comm[,comm...]",
726 "only consider symbols in these comms"),
727 OPT_STRING('S', "symbols", &symbol_conf
.sym_list_str
, "symbol[,symbol...]",
728 "only consider these symbols"),
729 OPT_STRING('s', "sort", &sort_order
, "key[,key2...]",
730 "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
731 " Please refer the man page for the complete list."),
732 OPT_STRING('t', "field-separator", &symbol_conf
.field_sep
, "separator",
733 "separator for columns, no spaces will be added between "
734 "columns '.' is reserved."),
735 OPT_STRING(0, "symfs", &symbol_conf
.symfs
, "directory",
736 "Look for files with symbols relative to this directory"),
737 OPT_UINTEGER('o', "order", &sort_compute
, "Specify compute sorting."),
738 OPT_CALLBACK(0, "percentage", NULL
, "relative|absolute",
739 "How to display percentage of filtered entries", parse_filter_percentage
),
743 static double baseline_percent(struct hist_entry
*he
)
745 u64 total
= hists__total_period(he
->hists
);
747 return 100.0 * he
->stat
.period
/ total
;
750 static int hpp__color_baseline(struct perf_hpp_fmt
*fmt
,
751 struct perf_hpp
*hpp
, struct hist_entry
*he
)
753 struct diff_hpp_fmt
*dfmt
=
754 container_of(fmt
, struct diff_hpp_fmt
, fmt
);
755 double percent
= baseline_percent(he
);
759 scnprintf(pfmt
, 20, "%%%d.2f%%%%", dfmt
->header_width
- 1);
760 return percent_color_snprintf(hpp
->buf
, hpp
->size
,
763 return scnprintf(hpp
->buf
, hpp
->size
, "%*s",
764 dfmt
->header_width
, pfmt
);
767 static int hpp__entry_baseline(struct hist_entry
*he
, char *buf
, size_t size
)
769 double percent
= baseline_percent(he
);
770 const char *fmt
= symbol_conf
.field_sep
? "%.2f" : "%6.2f%%";
774 ret
= scnprintf(buf
, size
, fmt
, percent
);
779 static int __hpp__color_compare(struct perf_hpp_fmt
*fmt
,
780 struct perf_hpp
*hpp
, struct hist_entry
*he
,
781 int comparison_method
)
783 struct diff_hpp_fmt
*dfmt
=
784 container_of(fmt
, struct diff_hpp_fmt
, fmt
);
785 struct hist_entry
*pair
= get_pair_fmt(he
, dfmt
);
793 switch (comparison_method
) {
795 if (pair
->diff
.computed
)
796 diff
= pair
->diff
.period_ratio_delta
;
798 diff
= compute_delta(he
, pair
);
800 if (fabs(diff
) < 0.01)
802 scnprintf(pfmt
, 20, "%%%+d.2f%%%%", dfmt
->header_width
- 1);
803 return percent_color_snprintf(hpp
->buf
, hpp
->size
,
808 if (pair
->diff
.computed
)
809 diff
= pair
->diff
.period_ratio
;
811 diff
= compute_ratio(he
, pair
);
813 scnprintf(pfmt
, 20, "%%%d.6f", dfmt
->header_width
);
814 return value_color_snprintf(hpp
->buf
, hpp
->size
,
816 case COMPUTE_WEIGHTED_DIFF
:
819 if (pair
->diff
.computed
)
820 wdiff
= pair
->diff
.wdiff
;
822 wdiff
= compute_wdiff(he
, pair
);
824 scnprintf(pfmt
, 20, "%%14ld", dfmt
->header_width
);
825 return color_snprintf(hpp
->buf
, hpp
->size
,
826 get_percent_color(wdiff
),
832 return scnprintf(hpp
->buf
, hpp
->size
, "%*s",
833 dfmt
->header_width
, pfmt
);
836 static int hpp__color_delta(struct perf_hpp_fmt
*fmt
,
837 struct perf_hpp
*hpp
, struct hist_entry
*he
)
839 return __hpp__color_compare(fmt
, hpp
, he
, COMPUTE_DELTA
);
842 static int hpp__color_ratio(struct perf_hpp_fmt
*fmt
,
843 struct perf_hpp
*hpp
, struct hist_entry
*he
)
845 return __hpp__color_compare(fmt
, hpp
, he
, COMPUTE_RATIO
);
848 static int hpp__color_wdiff(struct perf_hpp_fmt
*fmt
,
849 struct perf_hpp
*hpp
, struct hist_entry
*he
)
851 return __hpp__color_compare(fmt
, hpp
, he
, COMPUTE_WEIGHTED_DIFF
);
855 hpp__entry_unpair(struct hist_entry
*he
, int idx
, char *buf
, size_t size
)
858 case PERF_HPP_DIFF__PERIOD_BASELINE
:
859 scnprintf(buf
, size
, "%" PRIu64
, he
->stat
.period
);
868 hpp__entry_pair(struct hist_entry
*he
, struct hist_entry
*pair
,
869 int idx
, char *buf
, size_t size
)
876 case PERF_HPP_DIFF__DELTA
:
877 if (pair
->diff
.computed
)
878 diff
= pair
->diff
.period_ratio_delta
;
880 diff
= compute_delta(he
, pair
);
882 if (fabs(diff
) >= 0.01)
883 scnprintf(buf
, size
, "%+4.2F%%", diff
);
886 case PERF_HPP_DIFF__RATIO
:
887 /* No point for ratio number if we are dummy.. */
891 if (pair
->diff
.computed
)
892 ratio
= pair
->diff
.period_ratio
;
894 ratio
= compute_ratio(he
, pair
);
897 scnprintf(buf
, size
, "%14.6F", ratio
);
900 case PERF_HPP_DIFF__WEIGHTED_DIFF
:
901 /* No point for wdiff number if we are dummy.. */
905 if (pair
->diff
.computed
)
906 wdiff
= pair
->diff
.wdiff
;
908 wdiff
= compute_wdiff(he
, pair
);
911 scnprintf(buf
, size
, "%14ld", wdiff
);
914 case PERF_HPP_DIFF__FORMULA
:
915 formula_fprintf(he
, pair
, buf
, size
);
918 case PERF_HPP_DIFF__PERIOD
:
919 scnprintf(buf
, size
, "%" PRIu64
, pair
->stat
.period
);
928 __hpp__entry_global(struct hist_entry
*he
, struct diff_hpp_fmt
*dfmt
,
929 char *buf
, size_t size
)
931 struct hist_entry
*pair
= get_pair_fmt(he
, dfmt
);
934 /* baseline is special */
935 if (idx
== PERF_HPP_DIFF__BASELINE
)
936 hpp__entry_baseline(he
, buf
, size
);
939 hpp__entry_pair(he
, pair
, idx
, buf
, size
);
941 hpp__entry_unpair(he
, idx
, buf
, size
);
945 static int hpp__entry_global(struct perf_hpp_fmt
*_fmt
, struct perf_hpp
*hpp
,
946 struct hist_entry
*he
)
948 struct diff_hpp_fmt
*dfmt
=
949 container_of(_fmt
, struct diff_hpp_fmt
, fmt
);
950 char buf
[MAX_COL_WIDTH
] = " ";
952 __hpp__entry_global(he
, dfmt
, buf
, MAX_COL_WIDTH
);
954 if (symbol_conf
.field_sep
)
955 return scnprintf(hpp
->buf
, hpp
->size
, "%s", buf
);
957 return scnprintf(hpp
->buf
, hpp
->size
, "%*s",
958 dfmt
->header_width
, buf
);
961 static int hpp__header(struct perf_hpp_fmt
*fmt
, struct perf_hpp
*hpp
,
962 struct perf_evsel
*evsel __maybe_unused
)
964 struct diff_hpp_fmt
*dfmt
=
965 container_of(fmt
, struct diff_hpp_fmt
, fmt
);
967 BUG_ON(!dfmt
->header
);
968 return scnprintf(hpp
->buf
, hpp
->size
, dfmt
->header
);
971 static int hpp__width(struct perf_hpp_fmt
*fmt
,
972 struct perf_hpp
*hpp __maybe_unused
,
973 struct perf_evsel
*evsel __maybe_unused
)
975 struct diff_hpp_fmt
*dfmt
=
976 container_of(fmt
, struct diff_hpp_fmt
, fmt
);
978 BUG_ON(dfmt
->header_width
<= 0);
979 return dfmt
->header_width
;
982 static void init_header(struct data__file
*d
, struct diff_hpp_fmt
*dfmt
)
984 #define MAX_HEADER_NAME 100
985 char buf_indent
[MAX_HEADER_NAME
];
986 char buf
[MAX_HEADER_NAME
];
987 const char *header
= NULL
;
990 BUG_ON(dfmt
->idx
>= PERF_HPP_DIFF__MAX_INDEX
);
991 header
= columns
[dfmt
->idx
].name
;
992 width
= columns
[dfmt
->idx
].width
;
994 /* Only our defined HPP fmts should appear here. */
997 if (data__files_cnt
> 2)
998 scnprintf(buf
, MAX_HEADER_NAME
, "%s/%d", header
, d
->idx
);
1000 #define NAME (data__files_cnt > 2 ? buf : header)
1001 dfmt
->header_width
= width
;
1002 width
= (int) strlen(NAME
);
1003 if (dfmt
->header_width
< width
)
1004 dfmt
->header_width
= width
;
1006 scnprintf(buf_indent
, MAX_HEADER_NAME
, "%*s",
1007 dfmt
->header_width
, NAME
);
1009 dfmt
->header
= strdup(buf_indent
);
1010 #undef MAX_HEADER_NAME
1014 static void data__hpp_register(struct data__file
*d
, int idx
)
1016 struct diff_hpp_fmt
*dfmt
= &d
->fmt
[idx
];
1017 struct perf_hpp_fmt
*fmt
= &dfmt
->fmt
;
1021 fmt
->header
= hpp__header
;
1022 fmt
->width
= hpp__width
;
1023 fmt
->entry
= hpp__entry_global
;
1024 fmt
->cmp
= hist_entry__cmp_nop
;
1025 fmt
->collapse
= hist_entry__cmp_nop
;
1027 /* TODO more colors */
1029 case PERF_HPP_DIFF__BASELINE
:
1030 fmt
->color
= hpp__color_baseline
;
1031 fmt
->sort
= hist_entry__cmp_baseline
;
1033 case PERF_HPP_DIFF__DELTA
:
1034 fmt
->color
= hpp__color_delta
;
1035 fmt
->sort
= hist_entry__cmp_delta
;
1037 case PERF_HPP_DIFF__RATIO
:
1038 fmt
->color
= hpp__color_ratio
;
1039 fmt
->sort
= hist_entry__cmp_ratio
;
1041 case PERF_HPP_DIFF__WEIGHTED_DIFF
:
1042 fmt
->color
= hpp__color_wdiff
;
1043 fmt
->sort
= hist_entry__cmp_wdiff
;
1046 fmt
->sort
= hist_entry__cmp_nop
;
1050 init_header(d
, dfmt
);
1051 perf_hpp__column_register(fmt
);
1052 perf_hpp__register_sort_field(fmt
);
1055 static void ui_init(void)
1057 struct data__file
*d
;
1060 data__for_each_file(i
, d
) {
1063 * Baseline or compute realted columns:
1065 * PERF_HPP_DIFF__BASELINE
1066 * PERF_HPP_DIFF__DELTA
1067 * PERF_HPP_DIFF__RATIO
1068 * PERF_HPP_DIFF__WEIGHTED_DIFF
1070 data__hpp_register(d
, i
? compute_2_hpp
[compute
] :
1071 PERF_HPP_DIFF__BASELINE
);
1076 * PERF_HPP_DIFF__FORMULA
1077 * PERF_HPP_DIFF__PERIOD
1078 * PERF_HPP_DIFF__PERIOD_BASELINE
1080 if (show_formula
&& i
)
1081 data__hpp_register(d
, PERF_HPP_DIFF__FORMULA
);
1084 data__hpp_register(d
, i
? PERF_HPP_DIFF__PERIOD
:
1085 PERF_HPP_DIFF__PERIOD_BASELINE
);
1089 static int data_init(int argc
, const char **argv
)
1091 struct data__file
*d
;
1092 static const char *defaults
[] = {
1096 bool use_default
= true;
1099 data__files_cnt
= 2;
1103 defaults
[1] = argv
[0];
1105 data__files_cnt
= argc
;
1106 use_default
= false;
1108 } else if (perf_guest
) {
1109 defaults
[0] = "perf.data.host";
1110 defaults
[1] = "perf.data.guest";
1113 if (sort_compute
>= (unsigned int) data__files_cnt
) {
1114 pr_err("Order option out of limit.\n");
1118 data__files
= zalloc(sizeof(*data__files
) * data__files_cnt
);
1122 data__for_each_file(i
, d
) {
1123 struct perf_data_file
*file
= &d
->file
;
1125 file
->path
= use_default
? defaults
[i
] : argv
[i
];
1126 file
->mode
= PERF_DATA_MODE_READ
,
1127 file
->force
= force
,
1135 int cmd_diff(int argc
, const char **argv
, const char *prefix __maybe_unused
)
1137 int ret
= hists__init();
1142 perf_config(perf_default_config
, NULL
);
1144 argc
= parse_options(argc
, argv
, options
, diff_usage
, 0);
1146 if (symbol__init(NULL
) < 0)
1149 if (data_init(argc
, argv
) < 0)
1154 sort__mode
= SORT_MODE__DIFF
;
1156 if (setup_sorting() < 0)
1157 usage_with_options(diff_usage
, options
);
1161 sort__setup_elide(NULL
);
1163 return __cmd_diff();