Commit | Line | Data |
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86a9eee0 ACM |
1 | /* |
2 | * builtin-diff.c | |
3 | * | |
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. | |
6 | */ | |
7 | #include "builtin.h" | |
8 | ||
9 | #include "util/debug.h" | |
10 | #include "util/event.h" | |
11 | #include "util/hist.h" | |
743eb868 | 12 | #include "util/evsel.h" |
863e451f | 13 | #include "util/evlist.h" |
86a9eee0 | 14 | #include "util/session.h" |
45694aa7 | 15 | #include "util/tool.h" |
86a9eee0 ACM |
16 | #include "util/sort.h" |
17 | #include "util/symbol.h" | |
18 | #include "util/util.h" | |
f5fc1412 | 19 | #include "util/data.h" |
86a9eee0 ACM |
20 | |
21 | #include <stdlib.h> | |
345dc0b4 JO |
22 | #include <math.h> |
23 | ||
24 | /* Diff command specific HPP columns. */ | |
25 | enum { | |
26 | PERF_HPP_DIFF__BASELINE, | |
27 | PERF_HPP_DIFF__PERIOD, | |
28 | PERF_HPP_DIFF__PERIOD_BASELINE, | |
29 | PERF_HPP_DIFF__DELTA, | |
30 | PERF_HPP_DIFF__RATIO, | |
31 | PERF_HPP_DIFF__WEIGHTED_DIFF, | |
32 | PERF_HPP_DIFF__FORMULA, | |
33 | ||
34 | PERF_HPP_DIFF__MAX_INDEX | |
35 | }; | |
36 | ||
37 | struct diff_hpp_fmt { | |
38 | struct perf_hpp_fmt fmt; | |
39 | int idx; | |
40 | char *header; | |
41 | int header_width; | |
42 | }; | |
86a9eee0 | 43 | |
ec308426 JO |
44 | struct data__file { |
45 | struct perf_session *session; | |
f5fc1412 | 46 | struct perf_data_file file; |
ec308426 | 47 | int idx; |
22aeb7f5 | 48 | struct hists *hists; |
c818b498 | 49 | struct diff_hpp_fmt fmt[PERF_HPP_DIFF__MAX_INDEX]; |
ec308426 JO |
50 | }; |
51 | ||
52 | static struct data__file *data__files; | |
53 | static int data__files_cnt; | |
54 | ||
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]) | |
59 | ||
60 | #define data__for_each_file(i, d) data__for_each_file_start(i, d, 0) | |
22aeb7f5 | 61 | #define data__for_each_file_new(i, d) data__for_each_file_start(i, d, 1) |
ec308426 | 62 | |
ec308426 | 63 | static bool force; |
61949b21 | 64 | static bool show_period; |
ed279da2 | 65 | static bool show_formula; |
a06d143e | 66 | static bool show_baseline_only; |
5f3f8d3b | 67 | static unsigned int sort_compute; |
86a9eee0 | 68 | |
81d5f958 JO |
69 | static s64 compute_wdiff_w1; |
70 | static s64 compute_wdiff_w2; | |
71 | ||
7aaf6b35 JO |
72 | enum { |
73 | COMPUTE_DELTA, | |
74 | COMPUTE_RATIO, | |
81d5f958 | 75 | COMPUTE_WEIGHTED_DIFF, |
7aaf6b35 JO |
76 | COMPUTE_MAX, |
77 | }; | |
78 | ||
79 | const char *compute_names[COMPUTE_MAX] = { | |
80 | [COMPUTE_DELTA] = "delta", | |
81 | [COMPUTE_RATIO] = "ratio", | |
81d5f958 | 82 | [COMPUTE_WEIGHTED_DIFF] = "wdiff", |
7aaf6b35 JO |
83 | }; |
84 | ||
85 | static int compute; | |
86 | ||
345dc0b4 JO |
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, | |
91 | }; | |
92 | ||
93 | #define MAX_COL_WIDTH 70 | |
94 | ||
95 | static struct header_column { | |
96 | const char *name; | |
97 | int width; | |
98 | } columns[PERF_HPP_DIFF__MAX_INDEX] = { | |
99 | [PERF_HPP_DIFF__BASELINE] = { | |
100 | .name = "Baseline", | |
101 | }, | |
102 | [PERF_HPP_DIFF__PERIOD] = { | |
103 | .name = "Period", | |
104 | .width = 14, | |
105 | }, | |
106 | [PERF_HPP_DIFF__PERIOD_BASELINE] = { | |
107 | .name = "Base period", | |
108 | .width = 14, | |
109 | }, | |
110 | [PERF_HPP_DIFF__DELTA] = { | |
111 | .name = "Delta", | |
112 | .width = 7, | |
113 | }, | |
114 | [PERF_HPP_DIFF__RATIO] = { | |
115 | .name = "Ratio", | |
116 | .width = 14, | |
117 | }, | |
118 | [PERF_HPP_DIFF__WEIGHTED_DIFF] = { | |
119 | .name = "Weighted diff", | |
120 | .width = 14, | |
121 | }, | |
122 | [PERF_HPP_DIFF__FORMULA] = { | |
123 | .name = "Formula", | |
124 | .width = MAX_COL_WIDTH, | |
125 | } | |
126 | }; | |
127 | ||
81d5f958 JO |
128 | static int setup_compute_opt_wdiff(char *opt) |
129 | { | |
130 | char *w1_str = opt; | |
131 | char *w2_str; | |
132 | ||
133 | int ret = -EINVAL; | |
134 | ||
135 | if (!opt) | |
136 | goto out; | |
137 | ||
138 | w2_str = strchr(opt, ','); | |
139 | if (!w2_str) | |
140 | goto out; | |
141 | ||
142 | *w2_str++ = 0x0; | |
143 | if (!*w2_str) | |
144 | goto out; | |
145 | ||
146 | compute_wdiff_w1 = strtol(w1_str, NULL, 10); | |
147 | compute_wdiff_w2 = strtol(w2_str, NULL, 10); | |
148 | ||
149 | if (!compute_wdiff_w1 || !compute_wdiff_w2) | |
150 | goto out; | |
151 | ||
152 | pr_debug("compute wdiff w1(%" PRId64 ") w2(%" PRId64 ")\n", | |
153 | compute_wdiff_w1, compute_wdiff_w2); | |
154 | ||
155 | ret = 0; | |
156 | ||
157 | out: | |
158 | if (ret) | |
159 | pr_err("Failed: wrong weight data, use 'wdiff:w1,w2'\n"); | |
160 | ||
161 | return ret; | |
162 | } | |
163 | ||
164 | static int setup_compute_opt(char *opt) | |
165 | { | |
166 | if (compute == COMPUTE_WEIGHTED_DIFF) | |
167 | return setup_compute_opt_wdiff(opt); | |
168 | ||
169 | if (opt) { | |
170 | pr_err("Failed: extra option specified '%s'", opt); | |
171 | return -EINVAL; | |
172 | } | |
173 | ||
174 | return 0; | |
175 | } | |
176 | ||
7aaf6b35 JO |
177 | static int setup_compute(const struct option *opt, const char *str, |
178 | int unset __maybe_unused) | |
179 | { | |
180 | int *cp = (int *) opt->value; | |
81d5f958 JO |
181 | char *cstr = (char *) str; |
182 | char buf[50]; | |
7aaf6b35 | 183 | unsigned i; |
81d5f958 | 184 | char *option; |
7aaf6b35 JO |
185 | |
186 | if (!str) { | |
187 | *cp = COMPUTE_DELTA; | |
188 | return 0; | |
189 | } | |
190 | ||
81d5f958 JO |
191 | option = strchr(str, ':'); |
192 | if (option) { | |
193 | unsigned len = option++ - str; | |
194 | ||
195 | /* | |
196 | * The str data are not writeable, so we need | |
197 | * to use another buffer. | |
198 | */ | |
199 | ||
200 | /* No option value is longer. */ | |
201 | if (len >= sizeof(buf)) | |
202 | return -EINVAL; | |
203 | ||
204 | strncpy(buf, str, len); | |
205 | buf[len] = 0x0; | |
206 | cstr = buf; | |
207 | } | |
208 | ||
7aaf6b35 | 209 | for (i = 0; i < COMPUTE_MAX; i++) |
81d5f958 | 210 | if (!strcmp(cstr, compute_names[i])) { |
7aaf6b35 | 211 | *cp = i; |
81d5f958 | 212 | return setup_compute_opt(option); |
7aaf6b35 JO |
213 | } |
214 | ||
215 | pr_err("Failed: '%s' is not computation method " | |
81d5f958 | 216 | "(use 'delta','ratio' or 'wdiff')\n", str); |
7aaf6b35 JO |
217 | return -EINVAL; |
218 | } | |
219 | ||
ef358e6d | 220 | static double period_percent(struct hist_entry *he, u64 period) |
96c47f19 | 221 | { |
8810f6ce NK |
222 | u64 total = hists__total_period(he->hists); |
223 | ||
96c47f19 JO |
224 | return (period * 100.0) / total; |
225 | } | |
226 | ||
ef358e6d | 227 | static double compute_delta(struct hist_entry *he, struct hist_entry *pair) |
96c47f19 | 228 | { |
ef358e6d JO |
229 | double old_percent = period_percent(he, he->stat.period); |
230 | double new_percent = period_percent(pair, pair->stat.period); | |
96c47f19 | 231 | |
9af303e2 JO |
232 | pair->diff.period_ratio_delta = new_percent - old_percent; |
233 | pair->diff.computed = true; | |
234 | return pair->diff.period_ratio_delta; | |
96c47f19 JO |
235 | } |
236 | ||
ef358e6d | 237 | static double compute_ratio(struct hist_entry *he, struct hist_entry *pair) |
96c47f19 | 238 | { |
9af303e2 JO |
239 | double old_period = he->stat.period ?: 1; |
240 | double new_period = pair->stat.period; | |
96c47f19 | 241 | |
9af303e2 JO |
242 | pair->diff.computed = true; |
243 | pair->diff.period_ratio = new_period / old_period; | |
244 | return pair->diff.period_ratio; | |
96c47f19 JO |
245 | } |
246 | ||
ef358e6d | 247 | static s64 compute_wdiff(struct hist_entry *he, struct hist_entry *pair) |
81d5f958 | 248 | { |
9af303e2 JO |
249 | u64 old_period = he->stat.period; |
250 | u64 new_period = pair->stat.period; | |
81d5f958 | 251 | |
9af303e2 JO |
252 | pair->diff.computed = true; |
253 | pair->diff.wdiff = new_period * compute_wdiff_w2 - | |
254 | old_period * compute_wdiff_w1; | |
81d5f958 | 255 | |
9af303e2 | 256 | return pair->diff.wdiff; |
81d5f958 JO |
257 | } |
258 | ||
f4c8bae1 JO |
259 | static int formula_delta(struct hist_entry *he, struct hist_entry *pair, |
260 | char *buf, size_t size) | |
ed279da2 | 261 | { |
8810f6ce NK |
262 | u64 he_total = he->hists->stats.total_period; |
263 | u64 pair_total = pair->hists->stats.total_period; | |
264 | ||
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; | |
268 | } | |
ed279da2 JO |
269 | return scnprintf(buf, size, |
270 | "(%" PRIu64 " * 100 / %" PRIu64 ") - " | |
271 | "(%" PRIu64 " * 100 / %" PRIu64 ")", | |
8810f6ce NK |
272 | pair->stat.period, pair_total, |
273 | he->stat.period, he_total); | |
ed279da2 JO |
274 | } |
275 | ||
f4c8bae1 JO |
276 | static int formula_ratio(struct hist_entry *he, struct hist_entry *pair, |
277 | char *buf, size_t size) | |
ed279da2 | 278 | { |
9af303e2 JO |
279 | double old_period = he->stat.period; |
280 | double new_period = pair->stat.period; | |
ed279da2 JO |
281 | |
282 | return scnprintf(buf, size, "%.0F / %.0F", new_period, old_period); | |
283 | } | |
284 | ||
f4c8bae1 JO |
285 | static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair, |
286 | char *buf, size_t size) | |
ed279da2 | 287 | { |
9af303e2 JO |
288 | u64 old_period = he->stat.period; |
289 | u64 new_period = pair->stat.period; | |
ed279da2 JO |
290 | |
291 | return scnprintf(buf, size, | |
292 | "(%" PRIu64 " * " "%" PRId64 ") - (%" PRIu64 " * " "%" PRId64 ")", | |
293 | new_period, compute_wdiff_w2, old_period, compute_wdiff_w1); | |
294 | } | |
295 | ||
ef358e6d JO |
296 | static int formula_fprintf(struct hist_entry *he, struct hist_entry *pair, |
297 | char *buf, size_t size) | |
ed279da2 JO |
298 | { |
299 | switch (compute) { | |
300 | case COMPUTE_DELTA: | |
f4c8bae1 | 301 | return formula_delta(he, pair, buf, size); |
ed279da2 | 302 | case COMPUTE_RATIO: |
f4c8bae1 | 303 | return formula_ratio(he, pair, buf, size); |
ed279da2 | 304 | case COMPUTE_WEIGHTED_DIFF: |
f4c8bae1 | 305 | return formula_wdiff(he, pair, buf, size); |
ed279da2 JO |
306 | default: |
307 | BUG_ON(1); | |
308 | } | |
309 | ||
310 | return -1; | |
311 | } | |
312 | ||
c824c433 | 313 | static int hists__add_entry(struct hists *hists, |
05484298 | 314 | struct addr_location *al, u64 period, |
475eeab9 | 315 | u64 weight, u64 transaction) |
86a9eee0 | 316 | { |
41a4e6e2 | 317 | if (__hists__add_entry(hists, al, NULL, NULL, NULL, period, weight, |
a0b51af3 | 318 | transaction, true) != NULL) |
28e2a106 ACM |
319 | return 0; |
320 | return -ENOMEM; | |
86a9eee0 ACM |
321 | } |
322 | ||
1d037ca1 | 323 | static int diff__process_sample_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 324 | union perf_event *event, |
8d50e5b4 | 325 | struct perf_sample *sample, |
863e451f | 326 | struct perf_evsel *evsel, |
743eb868 | 327 | struct machine *machine) |
86a9eee0 ACM |
328 | { |
329 | struct addr_location al; | |
86a9eee0 | 330 | |
e44baa3e | 331 | if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { |
86a9eee0 ACM |
332 | pr_warning("problem processing %d event, skipping it.\n", |
333 | event->header.type); | |
334 | return -1; | |
335 | } | |
336 | ||
475eeab9 AK |
337 | if (hists__add_entry(&evsel->hists, &al, sample->period, |
338 | sample->weight, sample->transaction)) { | |
c82ee828 | 339 | pr_warning("problem incrementing symbol period, skipping event\n"); |
86a9eee0 ACM |
340 | return -1; |
341 | } | |
342 | ||
820bc81f NK |
343 | /* |
344 | * The total_period is updated here before going to the output | |
345 | * tree since normally only the baseline hists will call | |
346 | * hists__output_resort() and precompute needs the total | |
347 | * period in order to sort entries by percentage delta. | |
348 | */ | |
863e451f | 349 | evsel->hists.stats.total_period += sample->period; |
820bc81f NK |
350 | if (!al.filtered) |
351 | evsel->hists.stats.total_non_filtered_period += sample->period; | |
352 | ||
86a9eee0 ACM |
353 | return 0; |
354 | } | |
355 | ||
863e451f JO |
356 | static struct perf_tool tool = { |
357 | .sample = diff__process_sample_event, | |
358 | .mmap = perf_event__process_mmap, | |
359 | .comm = perf_event__process_comm, | |
f62d3f0f ACM |
360 | .exit = perf_event__process_exit, |
361 | .fork = perf_event__process_fork, | |
863e451f | 362 | .lost = perf_event__process_lost, |
0a8cb85c | 363 | .ordered_events = true, |
863e451f | 364 | .ordering_requires_timestamps = true, |
86a9eee0 ACM |
365 | }; |
366 | ||
863e451f JO |
367 | static struct perf_evsel *evsel_match(struct perf_evsel *evsel, |
368 | struct perf_evlist *evlist) | |
369 | { | |
370 | struct perf_evsel *e; | |
371 | ||
0050f7aa | 372 | evlist__for_each(evlist, e) { |
863e451f JO |
373 | if (perf_evsel__match2(evsel, e)) |
374 | return e; | |
0050f7aa | 375 | } |
863e451f JO |
376 | |
377 | return NULL; | |
378 | } | |
379 | ||
ce74f60e | 380 | static void perf_evlist__collapse_resort(struct perf_evlist *evlist) |
dd464345 JO |
381 | { |
382 | struct perf_evsel *evsel; | |
383 | ||
0050f7aa | 384 | evlist__for_each(evlist, evsel) { |
dd464345 JO |
385 | struct hists *hists = &evsel->hists; |
386 | ||
c1fb5651 | 387 | hists__collapse_resort(hists, NULL); |
dd464345 JO |
388 | } |
389 | } | |
390 | ||
5f3f8d3b JO |
391 | static struct hist_entry* |
392 | get_pair_data(struct hist_entry *he, struct data__file *d) | |
393 | { | |
394 | if (hist_entry__has_pairs(he)) { | |
395 | struct hist_entry *pair; | |
396 | ||
397 | list_for_each_entry(pair, &he->pairs.head, pairs.node) | |
398 | if (pair->hists == d->hists) | |
399 | return pair; | |
400 | } | |
401 | ||
402 | return NULL; | |
403 | } | |
404 | ||
405 | static struct hist_entry* | |
406 | get_pair_fmt(struct hist_entry *he, struct diff_hpp_fmt *dfmt) | |
407 | { | |
408 | void *ptr = dfmt - dfmt->idx; | |
409 | struct data__file *d = container_of(ptr, struct data__file, fmt); | |
410 | ||
411 | return get_pair_data(he, d); | |
412 | } | |
413 | ||
a06d143e JO |
414 | static void hists__baseline_only(struct hists *hists) |
415 | { | |
ce74f60e NK |
416 | struct rb_root *root; |
417 | struct rb_node *next; | |
418 | ||
419 | if (sort__need_collapse) | |
420 | root = &hists->entries_collapsed; | |
421 | else | |
422 | root = hists->entries_in; | |
a06d143e | 423 | |
ce74f60e | 424 | next = rb_first(root); |
a06d143e | 425 | while (next != NULL) { |
ce74f60e | 426 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in); |
a06d143e | 427 | |
ce74f60e | 428 | next = rb_next(&he->rb_node_in); |
b821c732 | 429 | if (!hist_entry__next_pair(he)) { |
ce74f60e | 430 | rb_erase(&he->rb_node_in, root); |
a06d143e JO |
431 | hist_entry__free(he); |
432 | } | |
433 | } | |
434 | } | |
435 | ||
96c47f19 JO |
436 | static void hists__precompute(struct hists *hists) |
437 | { | |
367c53c0 JO |
438 | struct rb_root *root; |
439 | struct rb_node *next; | |
440 | ||
441 | if (sort__need_collapse) | |
442 | root = &hists->entries_collapsed; | |
443 | else | |
444 | root = hists->entries_in; | |
96c47f19 | 445 | |
367c53c0 | 446 | next = rb_first(root); |
96c47f19 | 447 | while (next != NULL) { |
5f3f8d3b | 448 | struct hist_entry *he, *pair; |
96c47f19 | 449 | |
5f3f8d3b | 450 | he = rb_entry(next, struct hist_entry, rb_node_in); |
367c53c0 | 451 | next = rb_next(&he->rb_node_in); |
5f3f8d3b JO |
452 | |
453 | pair = get_pair_data(he, &data__files[sort_compute]); | |
05472daa JO |
454 | if (!pair) |
455 | continue; | |
96c47f19 JO |
456 | |
457 | switch (compute) { | |
458 | case COMPUTE_DELTA: | |
ef358e6d | 459 | compute_delta(he, pair); |
96c47f19 JO |
460 | break; |
461 | case COMPUTE_RATIO: | |
ef358e6d | 462 | compute_ratio(he, pair); |
96c47f19 | 463 | break; |
81d5f958 | 464 | case COMPUTE_WEIGHTED_DIFF: |
ef358e6d | 465 | compute_wdiff(he, pair); |
81d5f958 | 466 | break; |
96c47f19 JO |
467 | default: |
468 | BUG_ON(1); | |
469 | } | |
470 | } | |
471 | } | |
472 | ||
473 | static int64_t cmp_doubles(double l, double r) | |
474 | { | |
475 | if (l > r) | |
476 | return -1; | |
477 | else if (l < r) | |
478 | return 1; | |
479 | else | |
480 | return 0; | |
481 | } | |
482 | ||
483 | static int64_t | |
5f3f8d3b | 484 | __hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, |
96c47f19 JO |
485 | int c) |
486 | { | |
487 | switch (c) { | |
488 | case COMPUTE_DELTA: | |
489 | { | |
490 | double l = left->diff.period_ratio_delta; | |
491 | double r = right->diff.period_ratio_delta; | |
492 | ||
493 | return cmp_doubles(l, r); | |
494 | } | |
495 | case COMPUTE_RATIO: | |
496 | { | |
497 | double l = left->diff.period_ratio; | |
498 | double r = right->diff.period_ratio; | |
499 | ||
500 | return cmp_doubles(l, r); | |
501 | } | |
81d5f958 JO |
502 | case COMPUTE_WEIGHTED_DIFF: |
503 | { | |
504 | s64 l = left->diff.wdiff; | |
505 | s64 r = right->diff.wdiff; | |
506 | ||
507 | return r - l; | |
508 | } | |
96c47f19 JO |
509 | default: |
510 | BUG_ON(1); | |
511 | } | |
512 | ||
513 | return 0; | |
514 | } | |
515 | ||
5f3f8d3b JO |
516 | static int64_t |
517 | hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, | |
518 | int c) | |
519 | { | |
520 | bool pairs_left = hist_entry__has_pairs(left); | |
521 | bool pairs_right = hist_entry__has_pairs(right); | |
522 | struct hist_entry *p_right, *p_left; | |
523 | ||
524 | if (!pairs_left && !pairs_right) | |
525 | return 0; | |
526 | ||
527 | if (!pairs_left || !pairs_right) | |
528 | return pairs_left ? -1 : 1; | |
529 | ||
530 | p_left = get_pair_data(left, &data__files[sort_compute]); | |
531 | p_right = get_pair_data(right, &data__files[sort_compute]); | |
532 | ||
533 | if (!p_left && !p_right) | |
534 | return 0; | |
535 | ||
536 | if (!p_left || !p_right) | |
537 | return p_left ? -1 : 1; | |
538 | ||
539 | /* | |
540 | * We have 2 entries of same kind, let's | |
541 | * make the data comparison. | |
542 | */ | |
543 | return __hist_entry__cmp_compute(p_left, p_right, c); | |
544 | } | |
545 | ||
96c47f19 JO |
546 | static void insert_hist_entry_by_compute(struct rb_root *root, |
547 | struct hist_entry *he, | |
548 | int c) | |
549 | { | |
550 | struct rb_node **p = &root->rb_node; | |
551 | struct rb_node *parent = NULL; | |
552 | struct hist_entry *iter; | |
553 | ||
554 | while (*p != NULL) { | |
555 | parent = *p; | |
556 | iter = rb_entry(parent, struct hist_entry, rb_node); | |
557 | if (hist_entry__cmp_compute(he, iter, c) < 0) | |
558 | p = &(*p)->rb_left; | |
559 | else | |
560 | p = &(*p)->rb_right; | |
561 | } | |
562 | ||
563 | rb_link_node(&he->rb_node, parent, p); | |
564 | rb_insert_color(&he->rb_node, root); | |
565 | } | |
566 | ||
567 | static void hists__compute_resort(struct hists *hists) | |
568 | { | |
66f97ed3 NK |
569 | struct rb_root *root; |
570 | struct rb_node *next; | |
571 | ||
572 | if (sort__need_collapse) | |
573 | root = &hists->entries_collapsed; | |
574 | else | |
575 | root = hists->entries_in; | |
576 | ||
577 | hists->entries = RB_ROOT; | |
578 | next = rb_first(root); | |
579 | ||
9283ba9b | 580 | hists__reset_stats(hists); |
66f97ed3 | 581 | hists__reset_col_len(hists); |
96c47f19 JO |
582 | |
583 | while (next != NULL) { | |
66f97ed3 | 584 | struct hist_entry *he; |
96c47f19 | 585 | |
66f97ed3 NK |
586 | he = rb_entry(next, struct hist_entry, rb_node_in); |
587 | next = rb_next(&he->rb_node_in); | |
96c47f19 | 588 | |
66f97ed3 | 589 | insert_hist_entry_by_compute(&hists->entries, he, compute); |
6263835a | 590 | hists__inc_stats(hists, he); |
ae993efc NK |
591 | |
592 | if (!he->filtered) | |
593 | hists__calc_col_len(hists, he); | |
96c47f19 | 594 | } |
96c47f19 JO |
595 | } |
596 | ||
22aeb7f5 | 597 | static void hists__process(struct hists *hists) |
a06d143e | 598 | { |
a06d143e | 599 | if (show_baseline_only) |
22aeb7f5 | 600 | hists__baseline_only(hists); |
a06d143e | 601 | |
96c47f19 | 602 | if (sort_compute) { |
22aeb7f5 JO |
603 | hists__precompute(hists); |
604 | hists__compute_resort(hists); | |
66f97ed3 | 605 | } else { |
22aeb7f5 | 606 | hists__output_resort(hists); |
96c47f19 JO |
607 | } |
608 | ||
22aeb7f5 | 609 | hists__fprintf(hists, true, 0, 0, 0, stdout); |
a06d143e JO |
610 | } |
611 | ||
1d81c7fc JO |
612 | static void data__fprintf(void) |
613 | { | |
614 | struct data__file *d; | |
615 | int i; | |
616 | ||
617 | fprintf(stdout, "# Data files:\n"); | |
618 | ||
619 | data__for_each_file(i, d) | |
620 | fprintf(stdout, "# [%d] %s %s\n", | |
f5fc1412 | 621 | d->idx, d->file.path, |
1d81c7fc JO |
622 | !d->idx ? "(Baseline)" : ""); |
623 | ||
624 | fprintf(stdout, "#\n"); | |
625 | } | |
626 | ||
ec308426 | 627 | static void data_process(void) |
86a9eee0 | 628 | { |
22aeb7f5 JO |
629 | struct perf_evlist *evlist_base = data__files[0].session->evlist; |
630 | struct perf_evsel *evsel_base; | |
863e451f | 631 | bool first = true; |
86a9eee0 | 632 | |
0050f7aa | 633 | evlist__for_each(evlist_base, evsel_base) { |
22aeb7f5 JO |
634 | struct data__file *d; |
635 | int i; | |
86a9eee0 | 636 | |
22aeb7f5 JO |
637 | data__for_each_file_new(i, d) { |
638 | struct perf_evlist *evlist = d->session->evlist; | |
639 | struct perf_evsel *evsel; | |
640 | ||
641 | evsel = evsel_match(evsel_base, evlist); | |
642 | if (!evsel) | |
643 | continue; | |
644 | ||
645 | d->hists = &evsel->hists; | |
646 | ||
647 | hists__match(&evsel_base->hists, &evsel->hists); | |
648 | ||
649 | if (!show_baseline_only) | |
650 | hists__link(&evsel_base->hists, | |
651 | &evsel->hists); | |
652 | } | |
86a9eee0 | 653 | |
ec308426 | 654 | fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", |
22aeb7f5 | 655 | perf_evsel__name(evsel_base)); |
863e451f | 656 | |
ec308426 | 657 | first = false; |
863e451f | 658 | |
22aeb7f5 | 659 | if (verbose || data__files_cnt > 2) |
1d81c7fc JO |
660 | data__fprintf(); |
661 | ||
22aeb7f5 | 662 | hists__process(&evsel_base->hists); |
ec308426 JO |
663 | } |
664 | } | |
863e451f | 665 | |
c818b498 JO |
666 | static void data__free(struct data__file *d) |
667 | { | |
668 | int col; | |
669 | ||
670 | for (col = 0; col < PERF_HPP_DIFF__MAX_INDEX; col++) { | |
671 | struct diff_hpp_fmt *fmt = &d->fmt[col]; | |
672 | ||
74cf249d | 673 | zfree(&fmt->header); |
c818b498 JO |
674 | } |
675 | } | |
676 | ||
ec308426 JO |
677 | static int __cmd_diff(void) |
678 | { | |
679 | struct data__file *d; | |
680 | int ret = -EINVAL, i; | |
681 | ||
682 | data__for_each_file(i, d) { | |
f5fc1412 | 683 | d->session = perf_session__new(&d->file, false, &tool); |
ec308426 | 684 | if (!d->session) { |
f5fc1412 | 685 | pr_err("Failed to open %s\n", d->file.path); |
ec308426 JO |
686 | ret = -ENOMEM; |
687 | goto out_delete; | |
688 | } | |
863e451f | 689 | |
ec308426 JO |
690 | ret = perf_session__process_events(d->session, &tool); |
691 | if (ret) { | |
f5fc1412 | 692 | pr_err("Failed to process %s\n", d->file.path); |
ec308426 JO |
693 | goto out_delete; |
694 | } | |
863e451f | 695 | |
ec308426 JO |
696 | perf_evlist__collapse_resort(d->session->evlist); |
697 | } | |
698 | ||
699 | data_process(); | |
863e451f | 700 | |
ec308426 JO |
701 | out_delete: |
702 | data__for_each_file(i, d) { | |
703 | if (d->session) | |
704 | perf_session__delete(d->session); | |
c818b498 JO |
705 | |
706 | data__free(d); | |
863e451f | 707 | } |
9c443dfd | 708 | |
ec308426 | 709 | free(data__files); |
86a9eee0 ACM |
710 | return ret; |
711 | } | |
712 | ||
0422a4fc | 713 | static const char * const diff_usage[] = { |
86a9eee0 | 714 | "perf diff [<options>] [old_file] [new_file]", |
0422a4fc | 715 | NULL, |
86a9eee0 ACM |
716 | }; |
717 | ||
718 | static const struct option options[] = { | |
c0555642 | 719 | OPT_INCR('v', "verbose", &verbose, |
86a9eee0 | 720 | "be more verbose (show symbol address, etc)"), |
a06d143e JO |
721 | OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, |
722 | "Show only items with match in baseline"), | |
81d5f958 JO |
723 | OPT_CALLBACK('c', "compute", &compute, |
724 | "delta,ratio,wdiff:w1,w2 (default delta)", | |
7aaf6b35 JO |
725 | "Entries differential computation selection", |
726 | setup_compute), | |
61949b21 JO |
727 | OPT_BOOLEAN('p', "period", &show_period, |
728 | "Show period values."), | |
ed279da2 JO |
729 | OPT_BOOLEAN('F', "formula", &show_formula, |
730 | "Show formula."), | |
86a9eee0 ACM |
731 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
732 | "dump raw trace in ASCII"), | |
733 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
734 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, | |
735 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
c410a338 ACM |
736 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
737 | "only consider symbols in these dsos"), | |
738 | OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
739 | "only consider symbols in these comms"), | |
740 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
741 | "only consider these symbols"), | |
c351c281 | 742 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
743 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
744 | " Please refer the man page for the complete list."), | |
c351c281 ACM |
745 | OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator", |
746 | "separator for columns, no spaces will be added between " | |
747 | "columns '.' is reserved."), | |
ec5761ea DA |
748 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
749 | "Look for files with symbols relative to this directory"), | |
5f3f8d3b | 750 | OPT_UINTEGER('o', "order", &sort_compute, "Specify compute sorting."), |
8810f6ce NK |
751 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
752 | "How to display percentage of filtered entries", parse_filter_percentage), | |
86a9eee0 ACM |
753 | OPT_END() |
754 | }; | |
755 | ||
345dc0b4 | 756 | static double baseline_percent(struct hist_entry *he) |
1d77822e | 757 | { |
8810f6ce NK |
758 | u64 total = hists__total_period(he->hists); |
759 | ||
760 | return 100.0 * he->stat.period / total; | |
345dc0b4 | 761 | } |
7aaf6b35 | 762 | |
345dc0b4 JO |
763 | static int hpp__color_baseline(struct perf_hpp_fmt *fmt, |
764 | struct perf_hpp *hpp, struct hist_entry *he) | |
765 | { | |
766 | struct diff_hpp_fmt *dfmt = | |
767 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
768 | double percent = baseline_percent(he); | |
769 | char pfmt[20] = " "; | |
770 | ||
771 | if (!he->dummy) { | |
772 | scnprintf(pfmt, 20, "%%%d.2f%%%%", dfmt->header_width - 1); | |
773 | return percent_color_snprintf(hpp->buf, hpp->size, | |
774 | pfmt, percent); | |
775 | } else | |
776 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
777 | dfmt->header_width, pfmt); | |
778 | } | |
779 | ||
780 | static int hpp__entry_baseline(struct hist_entry *he, char *buf, size_t size) | |
781 | { | |
782 | double percent = baseline_percent(he); | |
783 | const char *fmt = symbol_conf.field_sep ? "%.2f" : "%6.2f%%"; | |
784 | int ret = 0; | |
785 | ||
786 | if (!he->dummy) | |
787 | ret = scnprintf(buf, size, fmt, percent); | |
788 | ||
789 | return ret; | |
790 | } | |
791 | ||
01f10bc8 RR |
792 | static int __hpp__color_compare(struct perf_hpp_fmt *fmt, |
793 | struct perf_hpp *hpp, struct hist_entry *he, | |
794 | int comparison_method) | |
795 | { | |
796 | struct diff_hpp_fmt *dfmt = | |
797 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
798 | struct hist_entry *pair = get_pair_fmt(he, dfmt); | |
799 | double diff; | |
a5846e21 | 800 | s64 wdiff; |
01f10bc8 RR |
801 | char pfmt[20] = " "; |
802 | ||
803 | if (!pair) | |
804 | goto dummy_print; | |
805 | ||
806 | switch (comparison_method) { | |
807 | case COMPUTE_DELTA: | |
808 | if (pair->diff.computed) | |
809 | diff = pair->diff.period_ratio_delta; | |
810 | else | |
811 | diff = compute_delta(he, pair); | |
812 | ||
813 | if (fabs(diff) < 0.01) | |
814 | goto dummy_print; | |
815 | scnprintf(pfmt, 20, "%%%+d.2f%%%%", dfmt->header_width - 1); | |
816 | return percent_color_snprintf(hpp->buf, hpp->size, | |
817 | pfmt, diff); | |
1f513b2c RR |
818 | case COMPUTE_RATIO: |
819 | if (he->dummy) | |
820 | goto dummy_print; | |
821 | if (pair->diff.computed) | |
822 | diff = pair->diff.period_ratio; | |
823 | else | |
824 | diff = compute_ratio(he, pair); | |
825 | ||
826 | scnprintf(pfmt, 20, "%%%d.6f", dfmt->header_width); | |
827 | return value_color_snprintf(hpp->buf, hpp->size, | |
828 | pfmt, diff); | |
a5846e21 RR |
829 | case COMPUTE_WEIGHTED_DIFF: |
830 | if (he->dummy) | |
831 | goto dummy_print; | |
832 | if (pair->diff.computed) | |
833 | wdiff = pair->diff.wdiff; | |
834 | else | |
835 | wdiff = compute_wdiff(he, pair); | |
836 | ||
837 | scnprintf(pfmt, 20, "%%14ld", dfmt->header_width); | |
838 | return color_snprintf(hpp->buf, hpp->size, | |
839 | get_percent_color(wdiff), | |
840 | pfmt, wdiff); | |
01f10bc8 RR |
841 | default: |
842 | BUG_ON(1); | |
843 | } | |
844 | dummy_print: | |
845 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
846 | dfmt->header_width, pfmt); | |
847 | } | |
848 | ||
849 | static int hpp__color_delta(struct perf_hpp_fmt *fmt, | |
850 | struct perf_hpp *hpp, struct hist_entry *he) | |
851 | { | |
852 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_DELTA); | |
853 | } | |
854 | ||
1f513b2c RR |
855 | static int hpp__color_ratio(struct perf_hpp_fmt *fmt, |
856 | struct perf_hpp *hpp, struct hist_entry *he) | |
857 | { | |
858 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_RATIO); | |
859 | } | |
860 | ||
a5846e21 RR |
861 | static int hpp__color_wdiff(struct perf_hpp_fmt *fmt, |
862 | struct perf_hpp *hpp, struct hist_entry *he) | |
863 | { | |
864 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_WEIGHTED_DIFF); | |
865 | } | |
866 | ||
345dc0b4 JO |
867 | static void |
868 | hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size) | |
869 | { | |
870 | switch (idx) { | |
871 | case PERF_HPP_DIFF__PERIOD_BASELINE: | |
872 | scnprintf(buf, size, "%" PRIu64, he->stat.period); | |
7aaf6b35 | 873 | break; |
345dc0b4 JO |
874 | |
875 | default: | |
81d5f958 | 876 | break; |
345dc0b4 JO |
877 | } |
878 | } | |
879 | ||
880 | static void | |
881 | hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair, | |
882 | int idx, char *buf, size_t size) | |
883 | { | |
884 | double diff; | |
885 | double ratio; | |
886 | s64 wdiff; | |
887 | ||
888 | switch (idx) { | |
889 | case PERF_HPP_DIFF__DELTA: | |
890 | if (pair->diff.computed) | |
891 | diff = pair->diff.period_ratio_delta; | |
892 | else | |
ef358e6d | 893 | diff = compute_delta(he, pair); |
345dc0b4 JO |
894 | |
895 | if (fabs(diff) >= 0.01) | |
896 | scnprintf(buf, size, "%+4.2F%%", diff); | |
897 | break; | |
898 | ||
899 | case PERF_HPP_DIFF__RATIO: | |
900 | /* No point for ratio number if we are dummy.. */ | |
901 | if (he->dummy) | |
902 | break; | |
903 | ||
904 | if (pair->diff.computed) | |
905 | ratio = pair->diff.period_ratio; | |
906 | else | |
ef358e6d | 907 | ratio = compute_ratio(he, pair); |
345dc0b4 JO |
908 | |
909 | if (ratio > 0.0) | |
910 | scnprintf(buf, size, "%14.6F", ratio); | |
911 | break; | |
912 | ||
913 | case PERF_HPP_DIFF__WEIGHTED_DIFF: | |
914 | /* No point for wdiff number if we are dummy.. */ | |
915 | if (he->dummy) | |
916 | break; | |
917 | ||
918 | if (pair->diff.computed) | |
919 | wdiff = pair->diff.wdiff; | |
920 | else | |
ef358e6d | 921 | wdiff = compute_wdiff(he, pair); |
345dc0b4 JO |
922 | |
923 | if (wdiff != 0) | |
924 | scnprintf(buf, size, "%14ld", wdiff); | |
925 | break; | |
926 | ||
927 | case PERF_HPP_DIFF__FORMULA: | |
ef358e6d | 928 | formula_fprintf(he, pair, buf, size); |
7aaf6b35 | 929 | break; |
345dc0b4 JO |
930 | |
931 | case PERF_HPP_DIFF__PERIOD: | |
932 | scnprintf(buf, size, "%" PRIu64, pair->stat.period); | |
933 | break; | |
934 | ||
7aaf6b35 JO |
935 | default: |
936 | BUG_ON(1); | |
937 | }; | |
345dc0b4 JO |
938 | } |
939 | ||
940 | static void | |
22aeb7f5 JO |
941 | __hpp__entry_global(struct hist_entry *he, struct diff_hpp_fmt *dfmt, |
942 | char *buf, size_t size) | |
345dc0b4 | 943 | { |
5f3f8d3b | 944 | struct hist_entry *pair = get_pair_fmt(he, dfmt); |
22aeb7f5 | 945 | int idx = dfmt->idx; |
345dc0b4 JO |
946 | |
947 | /* baseline is special */ | |
948 | if (idx == PERF_HPP_DIFF__BASELINE) | |
949 | hpp__entry_baseline(he, buf, size); | |
950 | else { | |
951 | if (pair) | |
952 | hpp__entry_pair(he, pair, idx, buf, size); | |
953 | else | |
954 | hpp__entry_unpair(he, idx, buf, size); | |
955 | } | |
956 | } | |
957 | ||
958 | static int hpp__entry_global(struct perf_hpp_fmt *_fmt, struct perf_hpp *hpp, | |
959 | struct hist_entry *he) | |
960 | { | |
961 | struct diff_hpp_fmt *dfmt = | |
962 | container_of(_fmt, struct diff_hpp_fmt, fmt); | |
963 | char buf[MAX_COL_WIDTH] = " "; | |
964 | ||
22aeb7f5 | 965 | __hpp__entry_global(he, dfmt, buf, MAX_COL_WIDTH); |
345dc0b4 JO |
966 | |
967 | if (symbol_conf.field_sep) | |
968 | return scnprintf(hpp->buf, hpp->size, "%s", buf); | |
969 | else | |
970 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
971 | dfmt->header_width, buf); | |
972 | } | |
973 | ||
94a0793d NK |
974 | static int hpp__header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, |
975 | struct perf_evsel *evsel __maybe_unused) | |
345dc0b4 JO |
976 | { |
977 | struct diff_hpp_fmt *dfmt = | |
978 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
979 | ||
980 | BUG_ON(!dfmt->header); | |
981 | return scnprintf(hpp->buf, hpp->size, dfmt->header); | |
982 | } | |
983 | ||
984 | static int hpp__width(struct perf_hpp_fmt *fmt, | |
94a0793d NK |
985 | struct perf_hpp *hpp __maybe_unused, |
986 | struct perf_evsel *evsel __maybe_unused) | |
345dc0b4 JO |
987 | { |
988 | struct diff_hpp_fmt *dfmt = | |
989 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
990 | ||
991 | BUG_ON(dfmt->header_width <= 0); | |
992 | return dfmt->header_width; | |
993 | } | |
994 | ||
22aeb7f5 | 995 | static void init_header(struct data__file *d, struct diff_hpp_fmt *dfmt) |
345dc0b4 JO |
996 | { |
997 | #define MAX_HEADER_NAME 100 | |
998 | char buf_indent[MAX_HEADER_NAME]; | |
999 | char buf[MAX_HEADER_NAME]; | |
1000 | const char *header = NULL; | |
1001 | int width = 0; | |
1002 | ||
1003 | BUG_ON(dfmt->idx >= PERF_HPP_DIFF__MAX_INDEX); | |
1004 | header = columns[dfmt->idx].name; | |
1005 | width = columns[dfmt->idx].width; | |
1006 | ||
1007 | /* Only our defined HPP fmts should appear here. */ | |
1008 | BUG_ON(!header); | |
1009 | ||
22aeb7f5 JO |
1010 | if (data__files_cnt > 2) |
1011 | scnprintf(buf, MAX_HEADER_NAME, "%s/%d", header, d->idx); | |
1012 | ||
345dc0b4 JO |
1013 | #define NAME (data__files_cnt > 2 ? buf : header) |
1014 | dfmt->header_width = width; | |
1015 | width = (int) strlen(NAME); | |
1016 | if (dfmt->header_width < width) | |
1017 | dfmt->header_width = width; | |
1018 | ||
1019 | scnprintf(buf_indent, MAX_HEADER_NAME, "%*s", | |
1020 | dfmt->header_width, NAME); | |
1021 | ||
1022 | dfmt->header = strdup(buf_indent); | |
1023 | #undef MAX_HEADER_NAME | |
1024 | #undef NAME | |
1025 | } | |
1026 | ||
c818b498 | 1027 | static void data__hpp_register(struct data__file *d, int idx) |
345dc0b4 | 1028 | { |
c818b498 JO |
1029 | struct diff_hpp_fmt *dfmt = &d->fmt[idx]; |
1030 | struct perf_hpp_fmt *fmt = &dfmt->fmt; | |
1031 | ||
1032 | dfmt->idx = idx; | |
1033 | ||
1034 | fmt->header = hpp__header; | |
1035 | fmt->width = hpp__width; | |
1036 | fmt->entry = hpp__entry_global; | |
1037 | ||
1038 | /* TODO more colors */ | |
01f10bc8 RR |
1039 | switch (idx) { |
1040 | case PERF_HPP_DIFF__BASELINE: | |
c818b498 | 1041 | fmt->color = hpp__color_baseline; |
01f10bc8 RR |
1042 | break; |
1043 | case PERF_HPP_DIFF__DELTA: | |
1044 | fmt->color = hpp__color_delta; | |
1045 | break; | |
1f513b2c RR |
1046 | case PERF_HPP_DIFF__RATIO: |
1047 | fmt->color = hpp__color_ratio; | |
1048 | break; | |
a5846e21 RR |
1049 | case PERF_HPP_DIFF__WEIGHTED_DIFF: |
1050 | fmt->color = hpp__color_wdiff; | |
1051 | break; | |
01f10bc8 RR |
1052 | default: |
1053 | break; | |
1054 | } | |
345dc0b4 | 1055 | |
22aeb7f5 | 1056 | init_header(d, dfmt); |
c818b498 | 1057 | perf_hpp__column_register(fmt); |
345dc0b4 JO |
1058 | } |
1059 | ||
1060 | static void ui_init(void) | |
1061 | { | |
c818b498 JO |
1062 | struct data__file *d; |
1063 | int i; | |
1064 | ||
1065 | data__for_each_file(i, d) { | |
1066 | ||
1067 | /* | |
1068 | * Baseline or compute realted columns: | |
1069 | * | |
1070 | * PERF_HPP_DIFF__BASELINE | |
1071 | * PERF_HPP_DIFF__DELTA | |
1072 | * PERF_HPP_DIFF__RATIO | |
1073 | * PERF_HPP_DIFF__WEIGHTED_DIFF | |
1074 | */ | |
1075 | data__hpp_register(d, i ? compute_2_hpp[compute] : | |
1076 | PERF_HPP_DIFF__BASELINE); | |
1d77822e | 1077 | |
c818b498 JO |
1078 | /* |
1079 | * And the rest: | |
1080 | * | |
1081 | * PERF_HPP_DIFF__FORMULA | |
1082 | * PERF_HPP_DIFF__PERIOD | |
1083 | * PERF_HPP_DIFF__PERIOD_BASELINE | |
1084 | */ | |
1085 | if (show_formula && i) | |
1086 | data__hpp_register(d, PERF_HPP_DIFF__FORMULA); | |
ed279da2 | 1087 | |
c818b498 JO |
1088 | if (show_period) |
1089 | data__hpp_register(d, i ? PERF_HPP_DIFF__PERIOD : | |
1090 | PERF_HPP_DIFF__PERIOD_BASELINE); | |
61949b21 | 1091 | } |
1d77822e JO |
1092 | } |
1093 | ||
ec308426 | 1094 | static int data_init(int argc, const char **argv) |
86a9eee0 | 1095 | { |
ec308426 JO |
1096 | struct data__file *d; |
1097 | static const char *defaults[] = { | |
1098 | "perf.data.old", | |
1099 | "perf.data", | |
1100 | }; | |
22aeb7f5 | 1101 | bool use_default = true; |
ec308426 JO |
1102 | int i; |
1103 | ||
1104 | data__files_cnt = 2; | |
1105 | ||
86a9eee0 | 1106 | if (argc) { |
22aeb7f5 | 1107 | if (argc == 1) |
ec308426 | 1108 | defaults[1] = argv[0]; |
22aeb7f5 JO |
1109 | else { |
1110 | data__files_cnt = argc; | |
1111 | use_default = false; | |
1112 | } | |
d8d9608f | 1113 | } else if (perf_guest) { |
ec308426 JO |
1114 | defaults[0] = "perf.data.host"; |
1115 | defaults[1] = "perf.data.guest"; | |
86a9eee0 ACM |
1116 | } |
1117 | ||
5f3f8d3b JO |
1118 | if (sort_compute >= (unsigned int) data__files_cnt) { |
1119 | pr_err("Order option out of limit.\n"); | |
1120 | return -EINVAL; | |
1121 | } | |
1122 | ||
ec308426 JO |
1123 | data__files = zalloc(sizeof(*data__files) * data__files_cnt); |
1124 | if (!data__files) | |
1125 | return -ENOMEM; | |
1126 | ||
1127 | data__for_each_file(i, d) { | |
f5fc1412 JO |
1128 | struct perf_data_file *file = &d->file; |
1129 | ||
1130 | file->path = use_default ? defaults[i] : argv[i]; | |
1131 | file->mode = PERF_DATA_MODE_READ, | |
1132 | file->force = force, | |
1133 | ||
ec308426 JO |
1134 | d->idx = i; |
1135 | } | |
1136 | ||
1137 | return 0; | |
1138 | } | |
1139 | ||
1140 | int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused) | |
1141 | { | |
0b93da17 NK |
1142 | perf_config(perf_default_config, NULL); |
1143 | ||
ec308426 JO |
1144 | argc = parse_options(argc, argv, options, diff_usage, 0); |
1145 | ||
655000e7 ACM |
1146 | if (symbol__init() < 0) |
1147 | return -1; | |
1148 | ||
ec308426 JO |
1149 | if (data_init(argc, argv) < 0) |
1150 | return -1; | |
1151 | ||
1d77822e JO |
1152 | ui_init(); |
1153 | ||
512ae1bd NK |
1154 | sort__mode = SORT_MODE__DIFF; |
1155 | ||
55309985 NK |
1156 | if (setup_sorting() < 0) |
1157 | usage_with_options(diff_usage, options); | |
1158 | ||
86a9eee0 | 1159 | setup_pager(); |
c351c281 | 1160 | |
08e71542 | 1161 | sort__setup_elide(NULL); |
c351c281 | 1162 | |
86a9eee0 ACM |
1163 | return __cmd_diff(); |
1164 | } |