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)
63 static char diff__default_sort_order[] = "dso,symbol";
65 static bool show_period;
66 static bool show_formula;
67 static bool show_baseline_only;
68 static unsigned int sort_compute;
70 static s64 compute_wdiff_w1;
71 static s64 compute_wdiff_w2;
76 COMPUTE_WEIGHTED_DIFF,
80 const char *compute_names[COMPUTE_MAX] = {
81 [COMPUTE_DELTA] = "delta",
82 [COMPUTE_RATIO] = "ratio",
83 [COMPUTE_WEIGHTED_DIFF] = "wdiff",
88 static int compute_2_hpp[COMPUTE_MAX] = {
89 [COMPUTE_DELTA] = PERF_HPP_DIFF__DELTA,
90 [COMPUTE_RATIO] = PERF_HPP_DIFF__RATIO,
91 [COMPUTE_WEIGHTED_DIFF] = PERF_HPP_DIFF__WEIGHTED_DIFF,
94 #define MAX_COL_WIDTH 70
96 static struct header_column {
99 } columns[PERF_HPP_DIFF__MAX_INDEX] = {
100 [PERF_HPP_DIFF__BASELINE] = {
103 [PERF_HPP_DIFF__PERIOD] = {
107 [PERF_HPP_DIFF__PERIOD_BASELINE] = {
108 .name = "Base period",
111 [PERF_HPP_DIFF__DELTA] = {
115 [PERF_HPP_DIFF__RATIO] = {
119 [PERF_HPP_DIFF__WEIGHTED_DIFF] = {
120 .name = "Weighted diff",
123 [PERF_HPP_DIFF__FORMULA] = {
125 .width = MAX_COL_WIDTH,
129 static int setup_compute_opt_wdiff(char *opt)
139 w2_str = strchr(opt, ',');
147 compute_wdiff_w1 = strtol(w1_str, NULL, 10);
148 compute_wdiff_w2 = strtol(w2_str, NULL, 10);
150 if (!compute_wdiff_w1 || !compute_wdiff_w2)
153 pr_debug("compute wdiff w1(%" PRId64 ") w2(%" PRId64 ")\n",
154 compute_wdiff_w1, compute_wdiff_w2);
160 pr_err("Failed: wrong weight data, use 'wdiff:w1,w2'\n");
165 static int setup_compute_opt(char *opt)
167 if (compute == COMPUTE_WEIGHTED_DIFF)
168 return setup_compute_opt_wdiff(opt);
171 pr_err("Failed: extra option specified '%s'", opt);
178 static int setup_compute(const struct option *opt, const char *str,
179 int unset __maybe_unused)
181 int *cp = (int *) opt->value;
182 char *cstr = (char *) str;
192 option = strchr(str, ':');
194 unsigned len = option++ - str;
197 * The str data are not writeable, so we need
198 * to use another buffer.
201 /* No option value is longer. */
202 if (len >= sizeof(buf))
205 strncpy(buf, str, len);
210 for (i = 0; i < COMPUTE_MAX; i++)
211 if (!strcmp(cstr, compute_names[i])) {
213 return setup_compute_opt(option);
216 pr_err("Failed: '%s' is not computation method "
217 "(use 'delta','ratio' or 'wdiff')\n", str);
221 static double period_percent(struct hist_entry *he, u64 period)
223 u64 total = hists__total_period(he->hists);
225 return (period * 100.0) / total;
228 static double compute_delta(struct hist_entry *he, struct hist_entry *pair)
230 double old_percent = period_percent(he, he->stat.period);
231 double new_percent = period_percent(pair, pair->stat.period);
233 pair->diff.period_ratio_delta = new_percent - old_percent;
234 pair->diff.computed = true;
235 return pair->diff.period_ratio_delta;
238 static double compute_ratio(struct hist_entry *he, struct hist_entry *pair)
240 double old_period = he->stat.period ?: 1;
241 double new_period = pair->stat.period;
243 pair->diff.computed = true;
244 pair->diff.period_ratio = new_period / old_period;
245 return pair->diff.period_ratio;
248 static s64 compute_wdiff(struct hist_entry *he, struct hist_entry *pair)
250 u64 old_period = he->stat.period;
251 u64 new_period = pair->stat.period;
253 pair->diff.computed = true;
254 pair->diff.wdiff = new_period * compute_wdiff_w2 -
255 old_period * compute_wdiff_w1;
257 return pair->diff.wdiff;
260 static int formula_delta(struct hist_entry *he, struct hist_entry *pair,
261 char *buf, size_t size)
263 u64 he_total = he->hists->stats.total_period;
264 u64 pair_total = pair->hists->stats.total_period;
266 if (symbol_conf.filter_relative) {
267 he_total = he->hists->stats.total_non_filtered_period;
268 pair_total = pair->hists->stats.total_non_filtered_period;
270 return scnprintf(buf, size,
271 "(%" PRIu64 " * 100 / %" PRIu64 ") - "
272 "(%" PRIu64 " * 100 / %" PRIu64 ")",
273 pair->stat.period, pair_total,
274 he->stat.period, he_total);
277 static int formula_ratio(struct hist_entry *he, struct hist_entry *pair,
278 char *buf, size_t size)
280 double old_period = he->stat.period;
281 double new_period = pair->stat.period;
283 return scnprintf(buf, size, "%.0F / %.0F", new_period, old_period);
286 static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair,
287 char *buf, size_t size)
289 u64 old_period = he->stat.period;
290 u64 new_period = pair->stat.period;
292 return scnprintf(buf, size,
293 "(%" PRIu64 " * " "%" PRId64 ") - (%" PRIu64 " * " "%" PRId64 ")",
294 new_period, compute_wdiff_w2, old_period, compute_wdiff_w1);
297 static int formula_fprintf(struct hist_entry *he, struct hist_entry *pair,
298 char *buf, size_t size)
302 return formula_delta(he, pair, buf, size);
304 return formula_ratio(he, pair, buf, size);
305 case COMPUTE_WEIGHTED_DIFF:
306 return formula_wdiff(he, pair, buf, size);
314 static int hists__add_entry(struct hists *hists,
315 struct addr_location *al, u64 period,
316 u64 weight, u64 transaction)
318 if (__hists__add_entry(hists, al, NULL, NULL, NULL, period, weight,
319 transaction) != NULL)
324 static int diff__process_sample_event(struct perf_tool *tool __maybe_unused,
325 union perf_event *event,
326 struct perf_sample *sample,
327 struct perf_evsel *evsel,
328 struct machine *machine)
330 struct addr_location al;
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(&evsel->hists, &al, sample->period,
339 sample->weight, sample->transaction)) {
340 pr_warning("problem incrementing symbol period, skipping event\n");
344 if (al.filtered == 0) {
345 evsel->hists.stats.total_non_filtered_period += sample->period;
346 evsel->hists.nr_non_filtered_entries++;
348 evsel->hists.stats.total_period += sample->period;
352 static struct perf_tool tool = {
353 .sample = diff__process_sample_event,
354 .mmap = perf_event__process_mmap,
355 .comm = perf_event__process_comm,
356 .exit = perf_event__process_exit,
357 .fork = perf_event__process_fork,
358 .lost = perf_event__process_lost,
359 .ordered_samples = true,
360 .ordering_requires_timestamps = true,
363 static struct perf_evsel *evsel_match(struct perf_evsel *evsel,
364 struct perf_evlist *evlist)
366 struct perf_evsel *e;
368 evlist__for_each(evlist, e) {
369 if (perf_evsel__match2(evsel, e))
376 static void perf_evlist__collapse_resort(struct perf_evlist *evlist)
378 struct perf_evsel *evsel;
380 evlist__for_each(evlist, evsel) {
381 struct hists *hists = &evsel->hists;
383 hists__collapse_resort(hists, NULL);
387 static struct hist_entry*
388 get_pair_data(struct hist_entry *he, struct data__file *d)
390 if (hist_entry__has_pairs(he)) {
391 struct hist_entry *pair;
393 list_for_each_entry(pair, &he->pairs.head, pairs.node)
394 if (pair->hists == d->hists)
401 static struct hist_entry*
402 get_pair_fmt(struct hist_entry *he, struct diff_hpp_fmt *dfmt)
404 void *ptr = dfmt - dfmt->idx;
405 struct data__file *d = container_of(ptr, struct data__file, fmt);
407 return get_pair_data(he, d);
410 static void hists__baseline_only(struct hists *hists)
412 struct rb_root *root;
413 struct rb_node *next;
415 if (sort__need_collapse)
416 root = &hists->entries_collapsed;
418 root = hists->entries_in;
420 next = rb_first(root);
421 while (next != NULL) {
422 struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in);
424 next = rb_next(&he->rb_node_in);
425 if (!hist_entry__next_pair(he)) {
426 rb_erase(&he->rb_node_in, root);
427 hist_entry__free(he);
432 static void hists__precompute(struct hists *hists)
434 struct rb_root *root;
435 struct rb_node *next;
437 if (sort__need_collapse)
438 root = &hists->entries_collapsed;
440 root = hists->entries_in;
442 next = rb_first(root);
443 while (next != NULL) {
444 struct hist_entry *he, *pair;
446 he = rb_entry(next, struct hist_entry, rb_node_in);
447 next = rb_next(&he->rb_node_in);
449 pair = get_pair_data(he, &data__files[sort_compute]);
455 compute_delta(he, pair);
458 compute_ratio(he, pair);
460 case COMPUTE_WEIGHTED_DIFF:
461 compute_wdiff(he, pair);
469 static int64_t cmp_doubles(double l, double r)
480 __hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
486 double l = left->diff.period_ratio_delta;
487 double r = right->diff.period_ratio_delta;
489 return cmp_doubles(l, r);
493 double l = left->diff.period_ratio;
494 double r = right->diff.period_ratio;
496 return cmp_doubles(l, r);
498 case COMPUTE_WEIGHTED_DIFF:
500 s64 l = left->diff.wdiff;
501 s64 r = right->diff.wdiff;
513 hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
516 bool pairs_left = hist_entry__has_pairs(left);
517 bool pairs_right = hist_entry__has_pairs(right);
518 struct hist_entry *p_right, *p_left;
520 if (!pairs_left && !pairs_right)
523 if (!pairs_left || !pairs_right)
524 return pairs_left ? -1 : 1;
526 p_left = get_pair_data(left, &data__files[sort_compute]);
527 p_right = get_pair_data(right, &data__files[sort_compute]);
529 if (!p_left && !p_right)
532 if (!p_left || !p_right)
533 return p_left ? -1 : 1;
536 * We have 2 entries of same kind, let's
537 * make the data comparison.
539 return __hist_entry__cmp_compute(p_left, p_right, c);
542 static void insert_hist_entry_by_compute(struct rb_root *root,
543 struct hist_entry *he,
546 struct rb_node **p = &root->rb_node;
547 struct rb_node *parent = NULL;
548 struct hist_entry *iter;
552 iter = rb_entry(parent, struct hist_entry, rb_node);
553 if (hist_entry__cmp_compute(he, iter, c) < 0)
559 rb_link_node(&he->rb_node, parent, p);
560 rb_insert_color(&he->rb_node, root);
563 static void hists__compute_resort(struct hists *hists)
565 struct rb_root *root;
566 struct rb_node *next;
568 if (sort__need_collapse)
569 root = &hists->entries_collapsed;
571 root = hists->entries_in;
573 hists->entries = RB_ROOT;
574 next = rb_first(root);
576 hists->nr_entries = 0;
577 hists->nr_non_filtered_entries = 0;
578 hists->stats.total_period = 0;
579 hists->stats.total_non_filtered_period = 0;
580 hists__reset_col_len(hists);
582 while (next != NULL) {
583 struct hist_entry *he;
585 he = rb_entry(next, struct hist_entry, rb_node_in);
586 next = rb_next(&he->rb_node_in);
588 insert_hist_entry_by_compute(&hists->entries, he, compute);
589 hists__inc_stats(hists, he);
593 static void hists__process(struct hists *hists)
595 if (show_baseline_only)
596 hists__baseline_only(hists);
599 hists__precompute(hists);
600 hists__compute_resort(hists);
602 hists__output_resort(hists);
605 hists__fprintf(hists, true, 0, 0, 0, stdout);
608 static void data__fprintf(void)
610 struct data__file *d;
613 fprintf(stdout, "# Data files:\n");
615 data__for_each_file(i, d)
616 fprintf(stdout, "# [%d] %s %s\n",
617 d->idx, d->file.path,
618 !d->idx ? "(Baseline)" : "");
620 fprintf(stdout, "#\n");
623 static void data_process(void)
625 struct perf_evlist *evlist_base = data__files[0].session->evlist;
626 struct perf_evsel *evsel_base;
629 evlist__for_each(evlist_base, evsel_base) {
630 struct data__file *d;
633 data__for_each_file_new(i, d) {
634 struct perf_evlist *evlist = d->session->evlist;
635 struct perf_evsel *evsel;
637 evsel = evsel_match(evsel_base, evlist);
641 d->hists = &evsel->hists;
643 hists__match(&evsel_base->hists, &evsel->hists);
645 if (!show_baseline_only)
646 hists__link(&evsel_base->hists,
650 fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n",
651 perf_evsel__name(evsel_base));
655 if (verbose || data__files_cnt > 2)
658 hists__process(&evsel_base->hists);
662 static void data__free(struct data__file *d)
666 for (col = 0; col < PERF_HPP_DIFF__MAX_INDEX; col++) {
667 struct diff_hpp_fmt *fmt = &d->fmt[col];
673 static int __cmd_diff(void)
675 struct data__file *d;
676 int ret = -EINVAL, i;
678 data__for_each_file(i, d) {
679 d->session = perf_session__new(&d->file, false, &tool);
681 pr_err("Failed to open %s\n", d->file.path);
686 ret = perf_session__process_events(d->session, &tool);
688 pr_err("Failed to process %s\n", d->file.path);
692 perf_evlist__collapse_resort(d->session->evlist);
698 data__for_each_file(i, d) {
700 perf_session__delete(d->session);
709 static const char * const diff_usage[] = {
710 "perf diff [<options>] [old_file] [new_file]",
714 static const struct option options[] = {
715 OPT_INCR('v', "verbose", &verbose,
716 "be more verbose (show symbol address, etc)"),
717 OPT_BOOLEAN('b', "baseline-only", &show_baseline_only,
718 "Show only items with match in baseline"),
719 OPT_CALLBACK('c', "compute", &compute,
720 "delta,ratio,wdiff:w1,w2 (default delta)",
721 "Entries differential computation selection",
723 OPT_BOOLEAN('p', "period", &show_period,
724 "Show period values."),
725 OPT_BOOLEAN('F', "formula", &show_formula,
727 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
728 "dump raw trace in ASCII"),
729 OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
730 OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
731 "load module symbols - WARNING: use only with -k and LIVE kernel"),
732 OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
733 "only consider symbols in these dsos"),
734 OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
735 "only consider symbols in these comms"),
736 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
737 "only consider these symbols"),
738 OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
739 "sort by key(s): pid, comm, dso, symbol, parent"),
740 OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator",
741 "separator for columns, no spaces will be added between "
742 "columns '.' is reserved."),
743 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
744 "Look for files with symbols relative to this directory"),
745 OPT_UINTEGER('o', "order", &sort_compute, "Specify compute sorting."),
746 OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
747 "How to display percentage of filtered entries", parse_filter_percentage),
751 static double baseline_percent(struct hist_entry *he)
753 u64 total = hists__total_period(he->hists);
755 return 100.0 * he->stat.period / total;
758 static int hpp__color_baseline(struct perf_hpp_fmt *fmt,
759 struct perf_hpp *hpp, struct hist_entry *he)
761 struct diff_hpp_fmt *dfmt =
762 container_of(fmt, struct diff_hpp_fmt, fmt);
763 double percent = baseline_percent(he);
767 scnprintf(pfmt, 20, "%%%d.2f%%%%", dfmt->header_width - 1);
768 return percent_color_snprintf(hpp->buf, hpp->size,
771 return scnprintf(hpp->buf, hpp->size, "%*s",
772 dfmt->header_width, pfmt);
775 static int hpp__entry_baseline(struct hist_entry *he, char *buf, size_t size)
777 double percent = baseline_percent(he);
778 const char *fmt = symbol_conf.field_sep ? "%.2f" : "%6.2f%%";
782 ret = scnprintf(buf, size, fmt, percent);
787 static int __hpp__color_compare(struct perf_hpp_fmt *fmt,
788 struct perf_hpp *hpp, struct hist_entry *he,
789 int comparison_method)
791 struct diff_hpp_fmt *dfmt =
792 container_of(fmt, struct diff_hpp_fmt, fmt);
793 struct hist_entry *pair = get_pair_fmt(he, dfmt);
801 switch (comparison_method) {
803 if (pair->diff.computed)
804 diff = pair->diff.period_ratio_delta;
806 diff = compute_delta(he, pair);
808 if (fabs(diff) < 0.01)
810 scnprintf(pfmt, 20, "%%%+d.2f%%%%", dfmt->header_width - 1);
811 return percent_color_snprintf(hpp->buf, hpp->size,
816 if (pair->diff.computed)
817 diff = pair->diff.period_ratio;
819 diff = compute_ratio(he, pair);
821 scnprintf(pfmt, 20, "%%%d.6f", dfmt->header_width);
822 return value_color_snprintf(hpp->buf, hpp->size,
824 case COMPUTE_WEIGHTED_DIFF:
827 if (pair->diff.computed)
828 wdiff = pair->diff.wdiff;
830 wdiff = compute_wdiff(he, pair);
832 scnprintf(pfmt, 20, "%%14ld", dfmt->header_width);
833 return color_snprintf(hpp->buf, hpp->size,
834 get_percent_color(wdiff),
840 return scnprintf(hpp->buf, hpp->size, "%*s",
841 dfmt->header_width, pfmt);
844 static int hpp__color_delta(struct perf_hpp_fmt *fmt,
845 struct perf_hpp *hpp, struct hist_entry *he)
847 return __hpp__color_compare(fmt, hpp, he, COMPUTE_DELTA);
850 static int hpp__color_ratio(struct perf_hpp_fmt *fmt,
851 struct perf_hpp *hpp, struct hist_entry *he)
853 return __hpp__color_compare(fmt, hpp, he, COMPUTE_RATIO);
856 static int hpp__color_wdiff(struct perf_hpp_fmt *fmt,
857 struct perf_hpp *hpp, struct hist_entry *he)
859 return __hpp__color_compare(fmt, hpp, he, COMPUTE_WEIGHTED_DIFF);
863 hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size)
866 case PERF_HPP_DIFF__PERIOD_BASELINE:
867 scnprintf(buf, size, "%" PRIu64, he->stat.period);
876 hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair,
877 int idx, char *buf, size_t size)
884 case PERF_HPP_DIFF__DELTA:
885 if (pair->diff.computed)
886 diff = pair->diff.period_ratio_delta;
888 diff = compute_delta(he, pair);
890 if (fabs(diff) >= 0.01)
891 scnprintf(buf, size, "%+4.2F%%", diff);
894 case PERF_HPP_DIFF__RATIO:
895 /* No point for ratio number if we are dummy.. */
899 if (pair->diff.computed)
900 ratio = pair->diff.period_ratio;
902 ratio = compute_ratio(he, pair);
905 scnprintf(buf, size, "%14.6F", ratio);
908 case PERF_HPP_DIFF__WEIGHTED_DIFF:
909 /* No point for wdiff number if we are dummy.. */
913 if (pair->diff.computed)
914 wdiff = pair->diff.wdiff;
916 wdiff = compute_wdiff(he, pair);
919 scnprintf(buf, size, "%14ld", wdiff);
922 case PERF_HPP_DIFF__FORMULA:
923 formula_fprintf(he, pair, buf, size);
926 case PERF_HPP_DIFF__PERIOD:
927 scnprintf(buf, size, "%" PRIu64, pair->stat.period);
936 __hpp__entry_global(struct hist_entry *he, struct diff_hpp_fmt *dfmt,
937 char *buf, size_t size)
939 struct hist_entry *pair = get_pair_fmt(he, dfmt);
942 /* baseline is special */
943 if (idx == PERF_HPP_DIFF__BASELINE)
944 hpp__entry_baseline(he, buf, size);
947 hpp__entry_pair(he, pair, idx, buf, size);
949 hpp__entry_unpair(he, idx, buf, size);
953 static int hpp__entry_global(struct perf_hpp_fmt *_fmt, struct perf_hpp *hpp,
954 struct hist_entry *he)
956 struct diff_hpp_fmt *dfmt =
957 container_of(_fmt, struct diff_hpp_fmt, fmt);
958 char buf[MAX_COL_WIDTH] = " ";
960 __hpp__entry_global(he, dfmt, buf, MAX_COL_WIDTH);
962 if (symbol_conf.field_sep)
963 return scnprintf(hpp->buf, hpp->size, "%s", buf);
965 return scnprintf(hpp->buf, hpp->size, "%*s",
966 dfmt->header_width, buf);
969 static int hpp__header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
970 struct perf_evsel *evsel __maybe_unused)
972 struct diff_hpp_fmt *dfmt =
973 container_of(fmt, struct diff_hpp_fmt, fmt);
975 BUG_ON(!dfmt->header);
976 return scnprintf(hpp->buf, hpp->size, dfmt->header);
979 static int hpp__width(struct perf_hpp_fmt *fmt,
980 struct perf_hpp *hpp __maybe_unused,
981 struct perf_evsel *evsel __maybe_unused)
983 struct diff_hpp_fmt *dfmt =
984 container_of(fmt, struct diff_hpp_fmt, fmt);
986 BUG_ON(dfmt->header_width <= 0);
987 return dfmt->header_width;
990 static void init_header(struct data__file *d, struct diff_hpp_fmt *dfmt)
992 #define MAX_HEADER_NAME 100
993 char buf_indent[MAX_HEADER_NAME];
994 char buf[MAX_HEADER_NAME];
995 const char *header = NULL;
998 BUG_ON(dfmt->idx >= PERF_HPP_DIFF__MAX_INDEX);
999 header = columns[dfmt->idx].name;
1000 width = columns[dfmt->idx].width;
1002 /* Only our defined HPP fmts should appear here. */
1005 if (data__files_cnt > 2)
1006 scnprintf(buf, MAX_HEADER_NAME, "%s/%d", header, d->idx);
1008 #define NAME (data__files_cnt > 2 ? buf : header)
1009 dfmt->header_width = width;
1010 width = (int) strlen(NAME);
1011 if (dfmt->header_width < width)
1012 dfmt->header_width = width;
1014 scnprintf(buf_indent, MAX_HEADER_NAME, "%*s",
1015 dfmt->header_width, NAME);
1017 dfmt->header = strdup(buf_indent);
1018 #undef MAX_HEADER_NAME
1022 static void data__hpp_register(struct data__file *d, int idx)
1024 struct diff_hpp_fmt *dfmt = &d->fmt[idx];
1025 struct perf_hpp_fmt *fmt = &dfmt->fmt;
1029 fmt->header = hpp__header;
1030 fmt->width = hpp__width;
1031 fmt->entry = hpp__entry_global;
1033 /* TODO more colors */
1035 case PERF_HPP_DIFF__BASELINE:
1036 fmt->color = hpp__color_baseline;
1038 case PERF_HPP_DIFF__DELTA:
1039 fmt->color = hpp__color_delta;
1041 case PERF_HPP_DIFF__RATIO:
1042 fmt->color = hpp__color_ratio;
1044 case PERF_HPP_DIFF__WEIGHTED_DIFF:
1045 fmt->color = hpp__color_wdiff;
1051 init_header(d, dfmt);
1052 perf_hpp__column_register(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 perf_config(perf_default_config, NULL);
1139 sort_order = diff__default_sort_order;
1140 argc = parse_options(argc, argv, options, diff_usage, 0);
1142 if (symbol__init() < 0)
1145 if (data_init(argc, argv) < 0)
1150 if (setup_sorting() < 0)
1151 usage_with_options(diff_usage, options);
1155 sort__setup_elide(NULL);
1157 return __cmd_diff();