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
);
333 if (perf_event__preprocess_sample(event
, machine
, &al
, sample
) < 0) {
334 pr_warning("problem processing %d event, skipping it.\n",
339 if (hists__add_entry(hists
, &al
, sample
->period
,
340 sample
->weight
, sample
->transaction
)) {
341 pr_warning("problem incrementing symbol period, skipping event\n");
346 * The total_period is updated here before going to the output
347 * tree since normally only the baseline hists will call
348 * hists__output_resort() and precompute needs the total
349 * period in order to sort entries by percentage delta.
351 hists
->stats
.total_period
+= sample
->period
;
353 hists
->stats
.total_non_filtered_period
+= sample
->period
;
356 addr_location__put(&al
);
360 static struct perf_tool tool
= {
361 .sample
= diff__process_sample_event
,
362 .mmap
= perf_event__process_mmap
,
363 .mmap2
= perf_event__process_mmap2
,
364 .comm
= perf_event__process_comm
,
365 .exit
= perf_event__process_exit
,
366 .fork
= perf_event__process_fork
,
367 .lost
= perf_event__process_lost
,
368 .ordered_events
= true,
369 .ordering_requires_timestamps
= true,
372 static struct perf_evsel
*evsel_match(struct perf_evsel
*evsel
,
373 struct perf_evlist
*evlist
)
375 struct perf_evsel
*e
;
377 evlist__for_each(evlist
, e
) {
378 if (perf_evsel__match2(evsel
, e
))
385 static void perf_evlist__collapse_resort(struct perf_evlist
*evlist
)
387 struct perf_evsel
*evsel
;
389 evlist__for_each(evlist
, evsel
) {
390 struct hists
*hists
= evsel__hists(evsel
);
392 hists__collapse_resort(hists
, NULL
);
396 static struct data__file
*fmt_to_data_file(struct perf_hpp_fmt
*fmt
)
398 struct diff_hpp_fmt
*dfmt
= container_of(fmt
, struct diff_hpp_fmt
, fmt
);
399 void *ptr
= dfmt
- dfmt
->idx
;
400 struct data__file
*d
= container_of(ptr
, struct data__file
, fmt
);
405 static struct hist_entry
*
406 get_pair_data(struct hist_entry
*he
, struct data__file
*d
)
408 if (hist_entry__has_pairs(he
)) {
409 struct hist_entry
*pair
;
411 list_for_each_entry(pair
, &he
->pairs
.head
, pairs
.node
)
412 if (pair
->hists
== d
->hists
)
419 static struct hist_entry
*
420 get_pair_fmt(struct hist_entry
*he
, struct diff_hpp_fmt
*dfmt
)
422 struct data__file
*d
= fmt_to_data_file(&dfmt
->fmt
);
424 return get_pair_data(he
, d
);
427 static void hists__baseline_only(struct hists
*hists
)
429 struct rb_root
*root
;
430 struct rb_node
*next
;
432 if (sort__need_collapse
)
433 root
= &hists
->entries_collapsed
;
435 root
= hists
->entries_in
;
437 next
= rb_first(root
);
438 while (next
!= NULL
) {
439 struct hist_entry
*he
= rb_entry(next
, struct hist_entry
, rb_node_in
);
441 next
= rb_next(&he
->rb_node_in
);
442 if (!hist_entry__next_pair(he
)) {
443 rb_erase(&he
->rb_node_in
, root
);
444 hist_entry__delete(he
);
449 static void hists__precompute(struct hists
*hists
)
451 struct rb_root
*root
;
452 struct rb_node
*next
;
454 if (sort__need_collapse
)
455 root
= &hists
->entries_collapsed
;
457 root
= hists
->entries_in
;
459 next
= rb_first(root
);
460 while (next
!= NULL
) {
461 struct hist_entry
*he
, *pair
;
462 struct data__file
*d
;
465 he
= rb_entry(next
, struct hist_entry
, rb_node_in
);
466 next
= rb_next(&he
->rb_node_in
);
468 data__for_each_file_new(i
, d
) {
469 pair
= get_pair_data(he
, d
);
475 compute_delta(he
, pair
);
478 compute_ratio(he
, pair
);
480 case COMPUTE_WEIGHTED_DIFF
:
481 compute_wdiff(he
, pair
);
490 static int64_t cmp_doubles(double l
, double r
)
501 __hist_entry__cmp_compute(struct hist_entry
*left
, struct hist_entry
*right
,
507 double l
= left
->diff
.period_ratio_delta
;
508 double r
= right
->diff
.period_ratio_delta
;
510 return cmp_doubles(l
, r
);
514 double l
= left
->diff
.period_ratio
;
515 double r
= right
->diff
.period_ratio
;
517 return cmp_doubles(l
, r
);
519 case COMPUTE_WEIGHTED_DIFF
:
521 s64 l
= left
->diff
.wdiff
;
522 s64 r
= right
->diff
.wdiff
;
534 hist_entry__cmp_compute(struct hist_entry
*left
, struct hist_entry
*right
,
537 bool pairs_left
= hist_entry__has_pairs(left
);
538 bool pairs_right
= hist_entry__has_pairs(right
);
539 struct hist_entry
*p_right
, *p_left
;
541 if (!pairs_left
&& !pairs_right
)
544 if (!pairs_left
|| !pairs_right
)
545 return pairs_left
? -1 : 1;
547 p_left
= get_pair_data(left
, &data__files
[sort_idx
]);
548 p_right
= get_pair_data(right
, &data__files
[sort_idx
]);
550 if (!p_left
&& !p_right
)
553 if (!p_left
|| !p_right
)
554 return p_left
? -1 : 1;
557 * We have 2 entries of same kind, let's
558 * make the data comparison.
560 return __hist_entry__cmp_compute(p_left
, p_right
, c
);
564 hist_entry__cmp_compute_idx(struct hist_entry
*left
, struct hist_entry
*right
,
567 struct hist_entry
*p_right
, *p_left
;
569 p_left
= get_pair_data(left
, &data__files
[sort_idx
]);
570 p_right
= get_pair_data(right
, &data__files
[sort_idx
]);
572 if (!p_left
&& !p_right
)
575 if (!p_left
|| !p_right
)
576 return p_left
? -1 : 1;
578 if (c
!= COMPUTE_DELTA
) {
580 * The delta can be computed without the baseline, but
581 * others are not. Put those entries which have no
584 if (left
->dummy
&& right
->dummy
)
587 if (left
->dummy
|| right
->dummy
)
588 return left
->dummy
? 1 : -1;
591 return __hist_entry__cmp_compute(p_left
, p_right
, c
);
595 hist_entry__cmp_nop(struct perf_hpp_fmt
*fmt __maybe_unused
,
596 struct hist_entry
*left __maybe_unused
,
597 struct hist_entry
*right __maybe_unused
)
603 hist_entry__cmp_baseline(struct perf_hpp_fmt
*fmt __maybe_unused
,
604 struct hist_entry
*left
, struct hist_entry
*right
)
606 if (left
->stat
.period
== right
->stat
.period
)
608 return left
->stat
.period
> right
->stat
.period
? 1 : -1;
612 hist_entry__cmp_delta(struct perf_hpp_fmt
*fmt
,
613 struct hist_entry
*left
, struct hist_entry
*right
)
615 struct data__file
*d
= fmt_to_data_file(fmt
);
617 return hist_entry__cmp_compute(right
, left
, COMPUTE_DELTA
, d
->idx
);
621 hist_entry__cmp_ratio(struct perf_hpp_fmt
*fmt
,
622 struct hist_entry
*left
, struct hist_entry
*right
)
624 struct data__file
*d
= fmt_to_data_file(fmt
);
626 return hist_entry__cmp_compute(right
, left
, COMPUTE_RATIO
, d
->idx
);
630 hist_entry__cmp_wdiff(struct perf_hpp_fmt
*fmt
,
631 struct hist_entry
*left
, struct hist_entry
*right
)
633 struct data__file
*d
= fmt_to_data_file(fmt
);
635 return hist_entry__cmp_compute(right
, left
, COMPUTE_WEIGHTED_DIFF
, d
->idx
);
639 hist_entry__cmp_delta_idx(struct perf_hpp_fmt
*fmt __maybe_unused
,
640 struct hist_entry
*left
, struct hist_entry
*right
)
642 return hist_entry__cmp_compute_idx(right
, left
, COMPUTE_DELTA
,
647 hist_entry__cmp_ratio_idx(struct perf_hpp_fmt
*fmt __maybe_unused
,
648 struct hist_entry
*left
, struct hist_entry
*right
)
650 return hist_entry__cmp_compute_idx(right
, left
, COMPUTE_RATIO
,
655 hist_entry__cmp_wdiff_idx(struct perf_hpp_fmt
*fmt __maybe_unused
,
656 struct hist_entry
*left
, struct hist_entry
*right
)
658 return hist_entry__cmp_compute_idx(right
, left
, COMPUTE_WEIGHTED_DIFF
,
662 static void hists__process(struct hists
*hists
)
664 if (show_baseline_only
)
665 hists__baseline_only(hists
);
667 hists__precompute(hists
);
668 hists__output_resort(hists
, NULL
);
670 hists__fprintf(hists
, true, 0, 0, 0, stdout
);
673 static void data__fprintf(void)
675 struct data__file
*d
;
678 fprintf(stdout
, "# Data files:\n");
680 data__for_each_file(i
, d
)
681 fprintf(stdout
, "# [%d] %s %s\n",
682 d
->idx
, d
->file
.path
,
683 !d
->idx
? "(Baseline)" : "");
685 fprintf(stdout
, "#\n");
688 static void data_process(void)
690 struct perf_evlist
*evlist_base
= data__files
[0].session
->evlist
;
691 struct perf_evsel
*evsel_base
;
694 evlist__for_each(evlist_base
, evsel_base
) {
695 struct hists
*hists_base
= evsel__hists(evsel_base
);
696 struct data__file
*d
;
699 data__for_each_file_new(i
, d
) {
700 struct perf_evlist
*evlist
= d
->session
->evlist
;
701 struct perf_evsel
*evsel
;
704 evsel
= evsel_match(evsel_base
, evlist
);
708 hists
= evsel__hists(evsel
);
711 hists__match(hists_base
, hists
);
713 if (!show_baseline_only
)
714 hists__link(hists_base
, hists
);
717 fprintf(stdout
, "%s# Event '%s'\n#\n", first
? "" : "\n",
718 perf_evsel__name(evsel_base
));
722 if (verbose
|| data__files_cnt
> 2)
725 /* Don't sort callchain for perf diff */
726 perf_evsel__reset_sample_bit(evsel_base
, CALLCHAIN
);
728 hists__process(hists_base
);
732 static void data__free(struct data__file
*d
)
736 for (col
= 0; col
< PERF_HPP_DIFF__MAX_INDEX
; col
++) {
737 struct diff_hpp_fmt
*fmt
= &d
->fmt
[col
];
743 static int __cmd_diff(void)
745 struct data__file
*d
;
746 int ret
= -EINVAL
, i
;
748 data__for_each_file(i
, d
) {
749 d
->session
= perf_session__new(&d
->file
, false, &tool
);
751 pr_err("Failed to open %s\n", d
->file
.path
);
756 ret
= perf_session__process_events(d
->session
);
758 pr_err("Failed to process %s\n", d
->file
.path
);
762 perf_evlist__collapse_resort(d
->session
->evlist
);
768 data__for_each_file(i
, d
) {
770 perf_session__delete(d
->session
);
779 static const char * const diff_usage
[] = {
780 "perf diff [<options>] [old_file] [new_file]",
784 static const struct option options
[] = {
785 OPT_INCR('v', "verbose", &verbose
,
786 "be more verbose (show symbol address, etc)"),
787 OPT_BOOLEAN('b', "baseline-only", &show_baseline_only
,
788 "Show only items with match in baseline"),
789 OPT_CALLBACK('c', "compute", &compute
,
790 "delta,ratio,wdiff:w1,w2 (default delta)",
791 "Entries differential computation selection",
793 OPT_BOOLEAN('p', "period", &show_period
,
794 "Show period values."),
795 OPT_BOOLEAN('F', "formula", &show_formula
,
797 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace
,
798 "dump raw trace in ASCII"),
799 OPT_BOOLEAN('f', "force", &force
, "don't complain, do it"),
800 OPT_STRING(0, "kallsyms", &symbol_conf
.kallsyms_name
,
801 "file", "kallsyms pathname"),
802 OPT_BOOLEAN('m', "modules", &symbol_conf
.use_modules
,
803 "load module symbols - WARNING: use only with -k and LIVE kernel"),
804 OPT_STRING('d', "dsos", &symbol_conf
.dso_list_str
, "dso[,dso...]",
805 "only consider symbols in these dsos"),
806 OPT_STRING('C', "comms", &symbol_conf
.comm_list_str
, "comm[,comm...]",
807 "only consider symbols in these comms"),
808 OPT_STRING('S', "symbols", &symbol_conf
.sym_list_str
, "symbol[,symbol...]",
809 "only consider these symbols"),
810 OPT_STRING('s', "sort", &sort_order
, "key[,key2...]",
811 "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
812 " Please refer the man page for the complete list."),
813 OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf
.field_sep
, "separator",
814 "separator for columns, no spaces will be added between "
815 "columns '.' is reserved."),
816 OPT_STRING(0, "symfs", &symbol_conf
.symfs
, "directory",
817 "Look for files with symbols relative to this directory"),
818 OPT_UINTEGER('o', "order", &sort_compute
, "Specify compute sorting."),
819 OPT_CALLBACK(0, "percentage", NULL
, "relative|absolute",
820 "How to display percentage of filtered entries", parse_filter_percentage
),
824 static double baseline_percent(struct hist_entry
*he
)
826 u64 total
= hists__total_period(he
->hists
);
828 return 100.0 * he
->stat
.period
/ total
;
831 static int hpp__color_baseline(struct perf_hpp_fmt
*fmt
,
832 struct perf_hpp
*hpp
, struct hist_entry
*he
)
834 struct diff_hpp_fmt
*dfmt
=
835 container_of(fmt
, struct diff_hpp_fmt
, fmt
);
836 double percent
= baseline_percent(he
);
840 scnprintf(pfmt
, 20, "%%%d.2f%%%%", dfmt
->header_width
- 1);
841 return percent_color_snprintf(hpp
->buf
, hpp
->size
,
844 return scnprintf(hpp
->buf
, hpp
->size
, "%*s",
845 dfmt
->header_width
, pfmt
);
848 static int hpp__entry_baseline(struct hist_entry
*he
, char *buf
, size_t size
)
850 double percent
= baseline_percent(he
);
851 const char *fmt
= symbol_conf
.field_sep
? "%.2f" : "%6.2f%%";
855 ret
= scnprintf(buf
, size
, fmt
, percent
);
860 static int __hpp__color_compare(struct perf_hpp_fmt
*fmt
,
861 struct perf_hpp
*hpp
, struct hist_entry
*he
,
862 int comparison_method
)
864 struct diff_hpp_fmt
*dfmt
=
865 container_of(fmt
, struct diff_hpp_fmt
, fmt
);
866 struct hist_entry
*pair
= get_pair_fmt(he
, dfmt
);
874 switch (comparison_method
) {
876 if (pair
->diff
.computed
)
877 diff
= pair
->diff
.period_ratio_delta
;
879 diff
= compute_delta(he
, pair
);
881 scnprintf(pfmt
, 20, "%%%+d.2f%%%%", dfmt
->header_width
- 1);
882 return percent_color_snprintf(hpp
->buf
, hpp
->size
,
887 if (pair
->diff
.computed
)
888 diff
= pair
->diff
.period_ratio
;
890 diff
= compute_ratio(he
, pair
);
892 scnprintf(pfmt
, 20, "%%%d.6f", dfmt
->header_width
);
893 return value_color_snprintf(hpp
->buf
, hpp
->size
,
895 case COMPUTE_WEIGHTED_DIFF
:
898 if (pair
->diff
.computed
)
899 wdiff
= pair
->diff
.wdiff
;
901 wdiff
= compute_wdiff(he
, pair
);
903 scnprintf(pfmt
, 20, "%%14ld", dfmt
->header_width
);
904 return color_snprintf(hpp
->buf
, hpp
->size
,
905 get_percent_color(wdiff
),
911 return scnprintf(hpp
->buf
, hpp
->size
, "%*s",
912 dfmt
->header_width
, "N/A");
914 return scnprintf(hpp
->buf
, hpp
->size
, "%*s",
915 dfmt
->header_width
, pfmt
);
918 static int hpp__color_delta(struct perf_hpp_fmt
*fmt
,
919 struct perf_hpp
*hpp
, struct hist_entry
*he
)
921 return __hpp__color_compare(fmt
, hpp
, he
, COMPUTE_DELTA
);
924 static int hpp__color_ratio(struct perf_hpp_fmt
*fmt
,
925 struct perf_hpp
*hpp
, struct hist_entry
*he
)
927 return __hpp__color_compare(fmt
, hpp
, he
, COMPUTE_RATIO
);
930 static int hpp__color_wdiff(struct perf_hpp_fmt
*fmt
,
931 struct perf_hpp
*hpp
, struct hist_entry
*he
)
933 return __hpp__color_compare(fmt
, hpp
, he
, COMPUTE_WEIGHTED_DIFF
);
937 hpp__entry_unpair(struct hist_entry
*he
, int idx
, char *buf
, size_t size
)
940 case PERF_HPP_DIFF__PERIOD_BASELINE
:
941 scnprintf(buf
, size
, "%" PRIu64
, he
->stat
.period
);
950 hpp__entry_pair(struct hist_entry
*he
, struct hist_entry
*pair
,
951 int idx
, char *buf
, size_t size
)
958 case PERF_HPP_DIFF__DELTA
:
959 if (pair
->diff
.computed
)
960 diff
= pair
->diff
.period_ratio_delta
;
962 diff
= compute_delta(he
, pair
);
964 scnprintf(buf
, size
, "%+4.2F%%", diff
);
967 case PERF_HPP_DIFF__RATIO
:
968 /* No point for ratio number if we are dummy.. */
970 scnprintf(buf
, size
, "N/A");
974 if (pair
->diff
.computed
)
975 ratio
= pair
->diff
.period_ratio
;
977 ratio
= compute_ratio(he
, pair
);
980 scnprintf(buf
, size
, "%14.6F", ratio
);
983 case PERF_HPP_DIFF__WEIGHTED_DIFF
:
984 /* No point for wdiff number if we are dummy.. */
986 scnprintf(buf
, size
, "N/A");
990 if (pair
->diff
.computed
)
991 wdiff
= pair
->diff
.wdiff
;
993 wdiff
= compute_wdiff(he
, pair
);
996 scnprintf(buf
, size
, "%14ld", wdiff
);
999 case PERF_HPP_DIFF__FORMULA
:
1000 formula_fprintf(he
, pair
, buf
, size
);
1003 case PERF_HPP_DIFF__PERIOD
:
1004 scnprintf(buf
, size
, "%" PRIu64
, pair
->stat
.period
);
1013 __hpp__entry_global(struct hist_entry
*he
, struct diff_hpp_fmt
*dfmt
,
1014 char *buf
, size_t size
)
1016 struct hist_entry
*pair
= get_pair_fmt(he
, dfmt
);
1017 int idx
= dfmt
->idx
;
1019 /* baseline is special */
1020 if (idx
== PERF_HPP_DIFF__BASELINE
)
1021 hpp__entry_baseline(he
, buf
, size
);
1024 hpp__entry_pair(he
, pair
, idx
, buf
, size
);
1026 hpp__entry_unpair(he
, idx
, buf
, size
);
1030 static int hpp__entry_global(struct perf_hpp_fmt
*_fmt
, struct perf_hpp
*hpp
,
1031 struct hist_entry
*he
)
1033 struct diff_hpp_fmt
*dfmt
=
1034 container_of(_fmt
, struct diff_hpp_fmt
, fmt
);
1035 char buf
[MAX_COL_WIDTH
] = " ";
1037 __hpp__entry_global(he
, dfmt
, buf
, MAX_COL_WIDTH
);
1039 if (symbol_conf
.field_sep
)
1040 return scnprintf(hpp
->buf
, hpp
->size
, "%s", buf
);
1042 return scnprintf(hpp
->buf
, hpp
->size
, "%*s",
1043 dfmt
->header_width
, buf
);
1046 static int hpp__header(struct perf_hpp_fmt
*fmt
, struct perf_hpp
*hpp
,
1047 struct perf_evsel
*evsel __maybe_unused
)
1049 struct diff_hpp_fmt
*dfmt
=
1050 container_of(fmt
, struct diff_hpp_fmt
, fmt
);
1052 BUG_ON(!dfmt
->header
);
1053 return scnprintf(hpp
->buf
, hpp
->size
, dfmt
->header
);
1056 static int hpp__width(struct perf_hpp_fmt
*fmt
,
1057 struct perf_hpp
*hpp __maybe_unused
,
1058 struct perf_evsel
*evsel __maybe_unused
)
1060 struct diff_hpp_fmt
*dfmt
=
1061 container_of(fmt
, struct diff_hpp_fmt
, fmt
);
1063 BUG_ON(dfmt
->header_width
<= 0);
1064 return dfmt
->header_width
;
1067 static void init_header(struct data__file
*d
, struct diff_hpp_fmt
*dfmt
)
1069 #define MAX_HEADER_NAME 100
1070 char buf_indent
[MAX_HEADER_NAME
];
1071 char buf
[MAX_HEADER_NAME
];
1072 const char *header
= NULL
;
1075 BUG_ON(dfmt
->idx
>= PERF_HPP_DIFF__MAX_INDEX
);
1076 header
= columns
[dfmt
->idx
].name
;
1077 width
= columns
[dfmt
->idx
].width
;
1079 /* Only our defined HPP fmts should appear here. */
1082 if (data__files_cnt
> 2)
1083 scnprintf(buf
, MAX_HEADER_NAME
, "%s/%d", header
, d
->idx
);
1085 #define NAME (data__files_cnt > 2 ? buf : header)
1086 dfmt
->header_width
= width
;
1087 width
= (int) strlen(NAME
);
1088 if (dfmt
->header_width
< width
)
1089 dfmt
->header_width
= width
;
1091 scnprintf(buf_indent
, MAX_HEADER_NAME
, "%*s",
1092 dfmt
->header_width
, NAME
);
1094 dfmt
->header
= strdup(buf_indent
);
1095 #undef MAX_HEADER_NAME
1099 static void data__hpp_register(struct data__file
*d
, int idx
)
1101 struct diff_hpp_fmt
*dfmt
= &d
->fmt
[idx
];
1102 struct perf_hpp_fmt
*fmt
= &dfmt
->fmt
;
1106 fmt
->header
= hpp__header
;
1107 fmt
->width
= hpp__width
;
1108 fmt
->entry
= hpp__entry_global
;
1109 fmt
->cmp
= hist_entry__cmp_nop
;
1110 fmt
->collapse
= hist_entry__cmp_nop
;
1112 /* TODO more colors */
1114 case PERF_HPP_DIFF__BASELINE
:
1115 fmt
->color
= hpp__color_baseline
;
1116 fmt
->sort
= hist_entry__cmp_baseline
;
1118 case PERF_HPP_DIFF__DELTA
:
1119 fmt
->color
= hpp__color_delta
;
1120 fmt
->sort
= hist_entry__cmp_delta
;
1122 case PERF_HPP_DIFF__RATIO
:
1123 fmt
->color
= hpp__color_ratio
;
1124 fmt
->sort
= hist_entry__cmp_ratio
;
1126 case PERF_HPP_DIFF__WEIGHTED_DIFF
:
1127 fmt
->color
= hpp__color_wdiff
;
1128 fmt
->sort
= hist_entry__cmp_wdiff
;
1131 fmt
->sort
= hist_entry__cmp_nop
;
1135 init_header(d
, dfmt
);
1136 perf_hpp__column_register(fmt
);
1137 perf_hpp__register_sort_field(fmt
);
1140 static int ui_init(void)
1142 struct data__file
*d
;
1143 struct perf_hpp_fmt
*fmt
;
1146 data__for_each_file(i
, d
) {
1149 * Baseline or compute realted columns:
1151 * PERF_HPP_DIFF__BASELINE
1152 * PERF_HPP_DIFF__DELTA
1153 * PERF_HPP_DIFF__RATIO
1154 * PERF_HPP_DIFF__WEIGHTED_DIFF
1156 data__hpp_register(d
, i
? compute_2_hpp
[compute
] :
1157 PERF_HPP_DIFF__BASELINE
);
1162 * PERF_HPP_DIFF__FORMULA
1163 * PERF_HPP_DIFF__PERIOD
1164 * PERF_HPP_DIFF__PERIOD_BASELINE
1166 if (show_formula
&& i
)
1167 data__hpp_register(d
, PERF_HPP_DIFF__FORMULA
);
1170 data__hpp_register(d
, i
? PERF_HPP_DIFF__PERIOD
:
1171 PERF_HPP_DIFF__PERIOD_BASELINE
);
1178 * Prepend an fmt to sort on columns at 'sort_compute' first.
1179 * This fmt is added only to the sort list but not to the
1180 * output fields list.
1182 * Note that this column (data) can be compared twice - one
1183 * for this 'sort_compute' fmt and another for the normal
1184 * diff_hpp_fmt. But it shouldn't a problem as most entries
1185 * will be sorted out by first try or baseline and comparing
1186 * is not a costly operation.
1188 fmt
= zalloc(sizeof(*fmt
));
1190 pr_err("Memory allocation failed\n");
1194 fmt
->cmp
= hist_entry__cmp_nop
;
1195 fmt
->collapse
= hist_entry__cmp_nop
;
1199 fmt
->sort
= hist_entry__cmp_delta_idx
;
1202 fmt
->sort
= hist_entry__cmp_ratio_idx
;
1204 case COMPUTE_WEIGHTED_DIFF
:
1205 fmt
->sort
= hist_entry__cmp_wdiff_idx
;
1211 list_add(&fmt
->sort_list
, &perf_hpp__sort_list
);
1215 static int data_init(int argc
, const char **argv
)
1217 struct data__file
*d
;
1218 static const char *defaults
[] = {
1222 bool use_default
= true;
1225 data__files_cnt
= 2;
1229 defaults
[1] = argv
[0];
1231 data__files_cnt
= argc
;
1232 use_default
= false;
1234 } else if (perf_guest
) {
1235 defaults
[0] = "perf.data.host";
1236 defaults
[1] = "perf.data.guest";
1239 if (sort_compute
>= (unsigned int) data__files_cnt
) {
1240 pr_err("Order option out of limit.\n");
1244 data__files
= zalloc(sizeof(*data__files
) * data__files_cnt
);
1248 data__for_each_file(i
, d
) {
1249 struct perf_data_file
*file
= &d
->file
;
1251 file
->path
= use_default
? defaults
[i
] : argv
[i
];
1252 file
->mode
= PERF_DATA_MODE_READ
,
1253 file
->force
= force
,
1261 int cmd_diff(int argc
, const char **argv
, const char *prefix __maybe_unused
)
1263 int ret
= hists__init();
1268 perf_config(perf_default_config
, NULL
);
1270 argc
= parse_options(argc
, argv
, options
, diff_usage
, 0);
1272 if (symbol__init(NULL
) < 0)
1275 if (data_init(argc
, argv
) < 0)
1281 sort__mode
= SORT_MODE__DIFF
;
1283 if (setup_sorting() < 0)
1284 usage_with_options(diff_usage
, options
);
1288 sort__setup_elide(NULL
);
1290 return __cmd_diff();