Commit | Line | Data |
---|---|---|
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" | |
19 | ||
20 | #include <stdlib.h> | |
21 | ||
c351c281 ACM |
22 | static char const *input_old = "perf.data.old", |
23 | *input_new = "perf.data"; | |
604c5c92 | 24 | static char diff__default_sort_order[] = "dso,symbol"; |
c0555642 | 25 | static bool force; |
c351c281 | 26 | static bool show_displacement; |
61949b21 | 27 | static bool show_period; |
ed279da2 | 28 | static bool show_formula; |
a06d143e | 29 | static bool show_baseline_only; |
96c47f19 | 30 | static bool sort_compute; |
86a9eee0 | 31 | |
81d5f958 JO |
32 | static s64 compute_wdiff_w1; |
33 | static s64 compute_wdiff_w2; | |
34 | ||
7aaf6b35 JO |
35 | enum { |
36 | COMPUTE_DELTA, | |
37 | COMPUTE_RATIO, | |
81d5f958 | 38 | COMPUTE_WEIGHTED_DIFF, |
7aaf6b35 JO |
39 | COMPUTE_MAX, |
40 | }; | |
41 | ||
42 | const char *compute_names[COMPUTE_MAX] = { | |
43 | [COMPUTE_DELTA] = "delta", | |
44 | [COMPUTE_RATIO] = "ratio", | |
81d5f958 | 45 | [COMPUTE_WEIGHTED_DIFF] = "wdiff", |
7aaf6b35 JO |
46 | }; |
47 | ||
48 | static int compute; | |
49 | ||
81d5f958 JO |
50 | static int setup_compute_opt_wdiff(char *opt) |
51 | { | |
52 | char *w1_str = opt; | |
53 | char *w2_str; | |
54 | ||
55 | int ret = -EINVAL; | |
56 | ||
57 | if (!opt) | |
58 | goto out; | |
59 | ||
60 | w2_str = strchr(opt, ','); | |
61 | if (!w2_str) | |
62 | goto out; | |
63 | ||
64 | *w2_str++ = 0x0; | |
65 | if (!*w2_str) | |
66 | goto out; | |
67 | ||
68 | compute_wdiff_w1 = strtol(w1_str, NULL, 10); | |
69 | compute_wdiff_w2 = strtol(w2_str, NULL, 10); | |
70 | ||
71 | if (!compute_wdiff_w1 || !compute_wdiff_w2) | |
72 | goto out; | |
73 | ||
74 | pr_debug("compute wdiff w1(%" PRId64 ") w2(%" PRId64 ")\n", | |
75 | compute_wdiff_w1, compute_wdiff_w2); | |
76 | ||
77 | ret = 0; | |
78 | ||
79 | out: | |
80 | if (ret) | |
81 | pr_err("Failed: wrong weight data, use 'wdiff:w1,w2'\n"); | |
82 | ||
83 | return ret; | |
84 | } | |
85 | ||
86 | static int setup_compute_opt(char *opt) | |
87 | { | |
88 | if (compute == COMPUTE_WEIGHTED_DIFF) | |
89 | return setup_compute_opt_wdiff(opt); | |
90 | ||
91 | if (opt) { | |
92 | pr_err("Failed: extra option specified '%s'", opt); | |
93 | return -EINVAL; | |
94 | } | |
95 | ||
96 | return 0; | |
97 | } | |
98 | ||
7aaf6b35 JO |
99 | static int setup_compute(const struct option *opt, const char *str, |
100 | int unset __maybe_unused) | |
101 | { | |
102 | int *cp = (int *) opt->value; | |
81d5f958 JO |
103 | char *cstr = (char *) str; |
104 | char buf[50]; | |
7aaf6b35 | 105 | unsigned i; |
81d5f958 | 106 | char *option; |
7aaf6b35 JO |
107 | |
108 | if (!str) { | |
109 | *cp = COMPUTE_DELTA; | |
110 | return 0; | |
111 | } | |
112 | ||
96c47f19 JO |
113 | if (*str == '+') { |
114 | sort_compute = true; | |
81d5f958 | 115 | cstr = (char *) ++str; |
96c47f19 JO |
116 | if (!*str) |
117 | return 0; | |
118 | } | |
119 | ||
81d5f958 JO |
120 | option = strchr(str, ':'); |
121 | if (option) { | |
122 | unsigned len = option++ - str; | |
123 | ||
124 | /* | |
125 | * The str data are not writeable, so we need | |
126 | * to use another buffer. | |
127 | */ | |
128 | ||
129 | /* No option value is longer. */ | |
130 | if (len >= sizeof(buf)) | |
131 | return -EINVAL; | |
132 | ||
133 | strncpy(buf, str, len); | |
134 | buf[len] = 0x0; | |
135 | cstr = buf; | |
136 | } | |
137 | ||
7aaf6b35 | 138 | for (i = 0; i < COMPUTE_MAX; i++) |
81d5f958 | 139 | if (!strcmp(cstr, compute_names[i])) { |
7aaf6b35 | 140 | *cp = i; |
81d5f958 | 141 | return setup_compute_opt(option); |
7aaf6b35 JO |
142 | } |
143 | ||
144 | pr_err("Failed: '%s' is not computation method " | |
81d5f958 | 145 | "(use 'delta','ratio' or 'wdiff')\n", str); |
7aaf6b35 JO |
146 | return -EINVAL; |
147 | } | |
148 | ||
96c47f19 JO |
149 | static double get_period_percent(struct hist_entry *he, u64 period) |
150 | { | |
151 | u64 total = he->hists->stats.total_period; | |
152 | return (period * 100.0) / total; | |
153 | } | |
154 | ||
155 | double perf_diff__compute_delta(struct hist_entry *he) | |
156 | { | |
157 | struct hist_entry *pair = he->pair; | |
158 | double new_percent = get_period_percent(he, he->stat.period); | |
159 | double old_percent = pair ? get_period_percent(pair, pair->stat.period) : 0.0; | |
160 | ||
161 | he->diff.period_ratio_delta = new_percent - old_percent; | |
162 | he->diff.computed = true; | |
163 | return he->diff.period_ratio_delta; | |
164 | } | |
165 | ||
166 | double perf_diff__compute_ratio(struct hist_entry *he) | |
167 | { | |
168 | struct hist_entry *pair = he->pair; | |
169 | double new_period = he->stat.period; | |
170 | double old_period = pair ? pair->stat.period : 0; | |
171 | ||
172 | he->diff.computed = true; | |
173 | he->diff.period_ratio = pair ? (new_period / old_period) : 0; | |
174 | return he->diff.period_ratio; | |
175 | } | |
176 | ||
81d5f958 JO |
177 | s64 perf_diff__compute_wdiff(struct hist_entry *he) |
178 | { | |
179 | struct hist_entry *pair = he->pair; | |
180 | u64 new_period = he->stat.period; | |
181 | u64 old_period = pair ? pair->stat.period : 0; | |
182 | ||
183 | he->diff.computed = true; | |
184 | ||
185 | if (!pair) | |
186 | he->diff.wdiff = 0; | |
187 | else | |
188 | he->diff.wdiff = new_period * compute_wdiff_w2 - | |
189 | old_period * compute_wdiff_w1; | |
190 | ||
191 | return he->diff.wdiff; | |
192 | } | |
193 | ||
ed279da2 JO |
194 | static int formula_delta(struct hist_entry *he, char *buf, size_t size) |
195 | { | |
196 | struct hist_entry *pair = he->pair; | |
197 | ||
198 | if (!pair) | |
199 | return -1; | |
200 | ||
201 | return scnprintf(buf, size, | |
202 | "(%" PRIu64 " * 100 / %" PRIu64 ") - " | |
203 | "(%" PRIu64 " * 100 / %" PRIu64 ")", | |
204 | he->stat.period, he->hists->stats.total_period, | |
205 | pair->stat.period, pair->hists->stats.total_period); | |
206 | } | |
207 | ||
208 | static int formula_ratio(struct hist_entry *he, char *buf, size_t size) | |
209 | { | |
210 | struct hist_entry *pair = he->pair; | |
211 | double new_period = he->stat.period; | |
212 | double old_period = pair ? pair->stat.period : 0; | |
213 | ||
214 | if (!pair) | |
215 | return -1; | |
216 | ||
217 | return scnprintf(buf, size, "%.0F / %.0F", new_period, old_period); | |
218 | } | |
219 | ||
220 | static int formula_wdiff(struct hist_entry *he, char *buf, size_t size) | |
221 | { | |
222 | struct hist_entry *pair = he->pair; | |
223 | u64 new_period = he->stat.period; | |
224 | u64 old_period = pair ? pair->stat.period : 0; | |
225 | ||
226 | if (!pair) | |
227 | return -1; | |
228 | ||
229 | return scnprintf(buf, size, | |
230 | "(%" PRIu64 " * " "%" PRId64 ") - (%" PRIu64 " * " "%" PRId64 ")", | |
231 | new_period, compute_wdiff_w2, old_period, compute_wdiff_w1); | |
232 | } | |
233 | ||
234 | int perf_diff__formula(char *buf, size_t size, struct hist_entry *he) | |
235 | { | |
236 | switch (compute) { | |
237 | case COMPUTE_DELTA: | |
238 | return formula_delta(he, buf, size); | |
239 | case COMPUTE_RATIO: | |
240 | return formula_ratio(he, buf, size); | |
241 | case COMPUTE_WEIGHTED_DIFF: | |
242 | return formula_wdiff(he, buf, size); | |
243 | default: | |
244 | BUG_ON(1); | |
245 | } | |
246 | ||
247 | return -1; | |
248 | } | |
249 | ||
1c02c4d2 | 250 | static int hists__add_entry(struct hists *self, |
c82ee828 | 251 | struct addr_location *al, u64 period) |
86a9eee0 | 252 | { |
c82ee828 | 253 | if (__hists__add_entry(self, al, NULL, period) != NULL) |
28e2a106 ACM |
254 | return 0; |
255 | return -ENOMEM; | |
86a9eee0 ACM |
256 | } |
257 | ||
1d037ca1 | 258 | static int diff__process_sample_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 259 | union perf_event *event, |
8d50e5b4 | 260 | struct perf_sample *sample, |
863e451f | 261 | struct perf_evsel *evsel, |
743eb868 | 262 | struct machine *machine) |
86a9eee0 ACM |
263 | { |
264 | struct addr_location al; | |
86a9eee0 | 265 | |
743eb868 | 266 | if (perf_event__preprocess_sample(event, machine, &al, sample, NULL) < 0) { |
86a9eee0 ACM |
267 | pr_warning("problem processing %d event, skipping it.\n", |
268 | event->header.type); | |
269 | return -1; | |
270 | } | |
271 | ||
d88c48f9 | 272 | if (al.filtered) |
c410a338 ACM |
273 | return 0; |
274 | ||
863e451f | 275 | if (hists__add_entry(&evsel->hists, &al, sample->period)) { |
c82ee828 | 276 | pr_warning("problem incrementing symbol period, skipping event\n"); |
86a9eee0 ACM |
277 | return -1; |
278 | } | |
279 | ||
863e451f | 280 | evsel->hists.stats.total_period += sample->period; |
86a9eee0 ACM |
281 | return 0; |
282 | } | |
283 | ||
863e451f JO |
284 | static struct perf_tool tool = { |
285 | .sample = diff__process_sample_event, | |
286 | .mmap = perf_event__process_mmap, | |
287 | .comm = perf_event__process_comm, | |
f62d3f0f ACM |
288 | .exit = perf_event__process_exit, |
289 | .fork = perf_event__process_fork, | |
863e451f JO |
290 | .lost = perf_event__process_lost, |
291 | .ordered_samples = true, | |
292 | .ordering_requires_timestamps = true, | |
86a9eee0 ACM |
293 | }; |
294 | ||
dd464345 JO |
295 | static void insert_hist_entry_by_name(struct rb_root *root, |
296 | struct hist_entry *he) | |
86a9eee0 ACM |
297 | { |
298 | struct rb_node **p = &root->rb_node; | |
299 | struct rb_node *parent = NULL; | |
300 | struct hist_entry *iter; | |
301 | ||
302 | while (*p != NULL) { | |
86a9eee0 ACM |
303 | parent = *p; |
304 | iter = rb_entry(parent, struct hist_entry, rb_node); | |
9c443dfd | 305 | if (hist_entry__cmp(he, iter) < 0) |
86a9eee0 | 306 | p = &(*p)->rb_left; |
9c443dfd | 307 | else |
86a9eee0 | 308 | p = &(*p)->rb_right; |
86a9eee0 ACM |
309 | } |
310 | ||
311 | rb_link_node(&he->rb_node, parent, p); | |
312 | rb_insert_color(&he->rb_node, root); | |
313 | } | |
314 | ||
dd464345 | 315 | static void hists__name_resort(struct hists *self, bool sort) |
86a9eee0 ACM |
316 | { |
317 | unsigned long position = 1; | |
318 | struct rb_root tmp = RB_ROOT; | |
1c02c4d2 | 319 | struct rb_node *next = rb_first(&self->entries); |
86a9eee0 ACM |
320 | |
321 | while (next != NULL) { | |
322 | struct hist_entry *n = rb_entry(next, struct hist_entry, rb_node); | |
323 | ||
324 | next = rb_next(&n->rb_node); | |
86a9eee0 | 325 | n->position = position++; |
dd464345 JO |
326 | |
327 | if (sort) { | |
328 | rb_erase(&n->rb_node, &self->entries); | |
329 | insert_hist_entry_by_name(&tmp, n); | |
330 | } | |
86a9eee0 ACM |
331 | } |
332 | ||
dd464345 JO |
333 | if (sort) |
334 | self->entries = tmp; | |
86a9eee0 ACM |
335 | } |
336 | ||
1c02c4d2 ACM |
337 | static struct hist_entry *hists__find_entry(struct hists *self, |
338 | struct hist_entry *he) | |
86a9eee0 | 339 | { |
1c02c4d2 | 340 | struct rb_node *n = self->entries.rb_node; |
86a9eee0 ACM |
341 | |
342 | while (n) { | |
343 | struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node); | |
9c443dfd | 344 | int64_t cmp = hist_entry__cmp(he, iter); |
86a9eee0 | 345 | |
9c443dfd | 346 | if (cmp < 0) |
86a9eee0 | 347 | n = n->rb_left; |
9c443dfd | 348 | else if (cmp > 0) |
86a9eee0 | 349 | n = n->rb_right; |
dd464345 | 350 | else |
9c443dfd | 351 | return iter; |
86a9eee0 ACM |
352 | } |
353 | ||
354 | return NULL; | |
355 | } | |
356 | ||
1c02c4d2 | 357 | static void hists__match(struct hists *older, struct hists *newer) |
86a9eee0 ACM |
358 | { |
359 | struct rb_node *nd; | |
360 | ||
1c02c4d2 | 361 | for (nd = rb_first(&newer->entries); nd; nd = rb_next(nd)) { |
86a9eee0 | 362 | struct hist_entry *pos = rb_entry(nd, struct hist_entry, rb_node); |
1c02c4d2 | 363 | pos->pair = hists__find_entry(older, pos); |
86a9eee0 ACM |
364 | } |
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 | ||
372 | list_for_each_entry(e, &evlist->entries, node) | |
373 | if (perf_evsel__match2(evsel, e)) | |
374 | return e; | |
375 | ||
376 | return NULL; | |
377 | } | |
378 | ||
dd464345 JO |
379 | static void perf_evlist__resort_hists(struct perf_evlist *evlist, bool name) |
380 | { | |
381 | struct perf_evsel *evsel; | |
382 | ||
383 | list_for_each_entry(evsel, &evlist->entries, node) { | |
384 | struct hists *hists = &evsel->hists; | |
385 | ||
386 | hists__output_resort(hists); | |
387 | ||
388 | /* | |
389 | * The hists__name_resort only sets possition | |
390 | * if name is false. | |
391 | */ | |
392 | if (name || ((!name) && show_displacement)) | |
393 | hists__name_resort(hists, name); | |
394 | } | |
395 | } | |
396 | ||
a06d143e JO |
397 | static void hists__baseline_only(struct hists *hists) |
398 | { | |
399 | struct rb_node *next = rb_first(&hists->entries); | |
400 | ||
401 | while (next != NULL) { | |
402 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node); | |
403 | ||
404 | next = rb_next(&he->rb_node); | |
405 | if (!he->pair) { | |
406 | rb_erase(&he->rb_node, &hists->entries); | |
407 | hist_entry__free(he); | |
408 | } | |
409 | } | |
410 | } | |
411 | ||
96c47f19 JO |
412 | static void hists__precompute(struct hists *hists) |
413 | { | |
414 | struct rb_node *next = rb_first(&hists->entries); | |
415 | ||
416 | while (next != NULL) { | |
417 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node); | |
418 | ||
419 | next = rb_next(&he->rb_node); | |
420 | ||
421 | switch (compute) { | |
422 | case COMPUTE_DELTA: | |
423 | perf_diff__compute_delta(he); | |
424 | break; | |
425 | case COMPUTE_RATIO: | |
426 | perf_diff__compute_ratio(he); | |
427 | break; | |
81d5f958 JO |
428 | case COMPUTE_WEIGHTED_DIFF: |
429 | perf_diff__compute_wdiff(he); | |
430 | break; | |
96c47f19 JO |
431 | default: |
432 | BUG_ON(1); | |
433 | } | |
434 | } | |
435 | } | |
436 | ||
437 | static int64_t cmp_doubles(double l, double r) | |
438 | { | |
439 | if (l > r) | |
440 | return -1; | |
441 | else if (l < r) | |
442 | return 1; | |
443 | else | |
444 | return 0; | |
445 | } | |
446 | ||
447 | static int64_t | |
448 | hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, | |
449 | int c) | |
450 | { | |
451 | switch (c) { | |
452 | case COMPUTE_DELTA: | |
453 | { | |
454 | double l = left->diff.period_ratio_delta; | |
455 | double r = right->diff.period_ratio_delta; | |
456 | ||
457 | return cmp_doubles(l, r); | |
458 | } | |
459 | case COMPUTE_RATIO: | |
460 | { | |
461 | double l = left->diff.period_ratio; | |
462 | double r = right->diff.period_ratio; | |
463 | ||
464 | return cmp_doubles(l, r); | |
465 | } | |
81d5f958 JO |
466 | case COMPUTE_WEIGHTED_DIFF: |
467 | { | |
468 | s64 l = left->diff.wdiff; | |
469 | s64 r = right->diff.wdiff; | |
470 | ||
471 | return r - l; | |
472 | } | |
96c47f19 JO |
473 | default: |
474 | BUG_ON(1); | |
475 | } | |
476 | ||
477 | return 0; | |
478 | } | |
479 | ||
480 | static void insert_hist_entry_by_compute(struct rb_root *root, | |
481 | struct hist_entry *he, | |
482 | int c) | |
483 | { | |
484 | struct rb_node **p = &root->rb_node; | |
485 | struct rb_node *parent = NULL; | |
486 | struct hist_entry *iter; | |
487 | ||
488 | while (*p != NULL) { | |
489 | parent = *p; | |
490 | iter = rb_entry(parent, struct hist_entry, rb_node); | |
491 | if (hist_entry__cmp_compute(he, iter, c) < 0) | |
492 | p = &(*p)->rb_left; | |
493 | else | |
494 | p = &(*p)->rb_right; | |
495 | } | |
496 | ||
497 | rb_link_node(&he->rb_node, parent, p); | |
498 | rb_insert_color(&he->rb_node, root); | |
499 | } | |
500 | ||
501 | static void hists__compute_resort(struct hists *hists) | |
502 | { | |
503 | struct rb_root tmp = RB_ROOT; | |
504 | struct rb_node *next = rb_first(&hists->entries); | |
505 | ||
506 | while (next != NULL) { | |
507 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node); | |
508 | ||
509 | next = rb_next(&he->rb_node); | |
510 | ||
511 | rb_erase(&he->rb_node, &hists->entries); | |
512 | insert_hist_entry_by_compute(&tmp, he, compute); | |
513 | } | |
514 | ||
515 | hists->entries = tmp; | |
516 | } | |
517 | ||
a06d143e JO |
518 | static void hists__process(struct hists *old, struct hists *new) |
519 | { | |
520 | hists__match(old, new); | |
521 | ||
522 | if (show_baseline_only) | |
523 | hists__baseline_only(new); | |
524 | ||
96c47f19 JO |
525 | if (sort_compute) { |
526 | hists__precompute(new); | |
527 | hists__compute_resort(new); | |
528 | } | |
529 | ||
a06d143e JO |
530 | hists__fprintf(new, true, 0, 0, stdout); |
531 | } | |
532 | ||
86a9eee0 ACM |
533 | static int __cmd_diff(void) |
534 | { | |
535 | int ret, i; | |
4bf9ce1b JO |
536 | #define older (session[0]) |
537 | #define newer (session[1]) | |
86a9eee0 | 538 | struct perf_session *session[2]; |
863e451f JO |
539 | struct perf_evlist *evlist_new, *evlist_old; |
540 | struct perf_evsel *evsel; | |
541 | bool first = true; | |
86a9eee0 | 542 | |
4bf9ce1b | 543 | older = perf_session__new(input_old, O_RDONLY, force, false, |
863e451f | 544 | &tool); |
4bf9ce1b | 545 | newer = perf_session__new(input_new, O_RDONLY, force, false, |
863e451f | 546 | &tool); |
86a9eee0 ACM |
547 | if (session[0] == NULL || session[1] == NULL) |
548 | return -ENOMEM; | |
549 | ||
550 | for (i = 0; i < 2; ++i) { | |
863e451f | 551 | ret = perf_session__process_events(session[i], &tool); |
86a9eee0 ACM |
552 | if (ret) |
553 | goto out_delete; | |
86a9eee0 ACM |
554 | } |
555 | ||
863e451f JO |
556 | evlist_old = older->evlist; |
557 | evlist_new = newer->evlist; | |
558 | ||
dd464345 JO |
559 | perf_evlist__resort_hists(evlist_old, true); |
560 | perf_evlist__resort_hists(evlist_new, false); | |
863e451f JO |
561 | |
562 | list_for_each_entry(evsel, &evlist_new->entries, node) { | |
563 | struct perf_evsel *evsel_old; | |
564 | ||
565 | evsel_old = evsel_match(evsel, evlist_old); | |
566 | if (!evsel_old) | |
567 | continue; | |
568 | ||
569 | fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", | |
570 | perf_evsel__name(evsel)); | |
571 | ||
572 | first = false; | |
573 | ||
a06d143e | 574 | hists__process(&evsel_old->hists, &evsel->hists); |
863e451f | 575 | } |
9c443dfd | 576 | |
86a9eee0 ACM |
577 | out_delete: |
578 | for (i = 0; i < 2; ++i) | |
579 | perf_session__delete(session[i]); | |
580 | return ret; | |
4bf9ce1b JO |
581 | #undef older |
582 | #undef newer | |
86a9eee0 ACM |
583 | } |
584 | ||
0422a4fc | 585 | static const char * const diff_usage[] = { |
86a9eee0 | 586 | "perf diff [<options>] [old_file] [new_file]", |
0422a4fc | 587 | NULL, |
86a9eee0 ACM |
588 | }; |
589 | ||
590 | static const struct option options[] = { | |
c0555642 | 591 | OPT_INCR('v', "verbose", &verbose, |
86a9eee0 | 592 | "be more verbose (show symbol address, etc)"), |
34295559 | 593 | OPT_BOOLEAN('M', "displacement", &show_displacement, |
c351c281 | 594 | "Show position displacement relative to baseline"), |
a06d143e JO |
595 | OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, |
596 | "Show only items with match in baseline"), | |
81d5f958 JO |
597 | OPT_CALLBACK('c', "compute", &compute, |
598 | "delta,ratio,wdiff:w1,w2 (default delta)", | |
7aaf6b35 JO |
599 | "Entries differential computation selection", |
600 | setup_compute), | |
61949b21 JO |
601 | OPT_BOOLEAN('p', "period", &show_period, |
602 | "Show period values."), | |
ed279da2 JO |
603 | OPT_BOOLEAN('F', "formula", &show_formula, |
604 | "Show formula."), | |
86a9eee0 ACM |
605 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
606 | "dump raw trace in ASCII"), | |
607 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
608 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, | |
609 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
c410a338 ACM |
610 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
611 | "only consider symbols in these dsos"), | |
612 | OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
613 | "only consider symbols in these comms"), | |
614 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
615 | "only consider these symbols"), | |
c351c281 ACM |
616 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
617 | "sort by key(s): pid, comm, dso, symbol, parent"), | |
618 | OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator", | |
619 | "separator for columns, no spaces will be added between " | |
620 | "columns '.' is reserved."), | |
ec5761ea DA |
621 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
622 | "Look for files with symbols relative to this directory"), | |
86a9eee0 ACM |
623 | OPT_END() |
624 | }; | |
625 | ||
1d77822e JO |
626 | static void ui_init(void) |
627 | { | |
628 | perf_hpp__init(); | |
629 | ||
630 | /* No overhead column. */ | |
631 | perf_hpp__column_enable(PERF_HPP__OVERHEAD, false); | |
632 | ||
ed279da2 JO |
633 | /* |
634 | * Display baseline/delta/ratio/displacement/ | |
635 | * formula/periods columns. | |
636 | */ | |
1d77822e | 637 | perf_hpp__column_enable(PERF_HPP__BASELINE, true); |
7aaf6b35 JO |
638 | |
639 | switch (compute) { | |
640 | case COMPUTE_DELTA: | |
641 | perf_hpp__column_enable(PERF_HPP__DELTA, true); | |
642 | break; | |
643 | case COMPUTE_RATIO: | |
644 | perf_hpp__column_enable(PERF_HPP__RATIO, true); | |
81d5f958 JO |
645 | break; |
646 | case COMPUTE_WEIGHTED_DIFF: | |
647 | perf_hpp__column_enable(PERF_HPP__WEIGHTED_DIFF, true); | |
7aaf6b35 JO |
648 | break; |
649 | default: | |
650 | BUG_ON(1); | |
651 | }; | |
1d77822e JO |
652 | |
653 | if (show_displacement) | |
654 | perf_hpp__column_enable(PERF_HPP__DISPL, true); | |
61949b21 | 655 | |
ed279da2 JO |
656 | if (show_formula) |
657 | perf_hpp__column_enable(PERF_HPP__FORMULA, true); | |
658 | ||
61949b21 JO |
659 | if (show_period) { |
660 | perf_hpp__column_enable(PERF_HPP__PERIOD, true); | |
661 | perf_hpp__column_enable(PERF_HPP__PERIOD_BASELINE, true); | |
662 | } | |
1d77822e JO |
663 | } |
664 | ||
1d037ca1 | 665 | int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused) |
86a9eee0 | 666 | { |
604c5c92 | 667 | sort_order = diff__default_sort_order; |
86a9eee0 ACM |
668 | argc = parse_options(argc, argv, options, diff_usage, 0); |
669 | if (argc) { | |
670 | if (argc > 2) | |
671 | usage_with_options(diff_usage, options); | |
672 | if (argc == 2) { | |
673 | input_old = argv[0]; | |
674 | input_new = argv[1]; | |
675 | } else | |
676 | input_new = argv[0]; | |
a1645ce1 ZY |
677 | } else if (symbol_conf.default_guest_vmlinux_name || |
678 | symbol_conf.default_guest_kallsyms) { | |
679 | input_old = "perf.data.host"; | |
680 | input_new = "perf.data.guest"; | |
86a9eee0 ACM |
681 | } |
682 | ||
c351c281 | 683 | symbol_conf.exclude_other = false; |
655000e7 ACM |
684 | if (symbol__init() < 0) |
685 | return -1; | |
686 | ||
1d77822e JO |
687 | ui_init(); |
688 | ||
655000e7 | 689 | setup_sorting(diff_usage, options); |
86a9eee0 | 690 | setup_pager(); |
c351c281 ACM |
691 | |
692 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", NULL); | |
693 | sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", NULL); | |
694 | sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", NULL); | |
695 | ||
86a9eee0 ACM |
696 | return __cmd_diff(); |
697 | } |