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; |
a06d143e | 28 | static bool show_baseline_only; |
96c47f19 | 29 | static bool sort_compute; |
86a9eee0 | 30 | |
81d5f958 JO |
31 | static s64 compute_wdiff_w1; |
32 | static s64 compute_wdiff_w2; | |
33 | ||
7aaf6b35 JO |
34 | enum { |
35 | COMPUTE_DELTA, | |
36 | COMPUTE_RATIO, | |
81d5f958 | 37 | COMPUTE_WEIGHTED_DIFF, |
7aaf6b35 JO |
38 | COMPUTE_MAX, |
39 | }; | |
40 | ||
41 | const char *compute_names[COMPUTE_MAX] = { | |
42 | [COMPUTE_DELTA] = "delta", | |
43 | [COMPUTE_RATIO] = "ratio", | |
81d5f958 | 44 | [COMPUTE_WEIGHTED_DIFF] = "wdiff", |
7aaf6b35 JO |
45 | }; |
46 | ||
47 | static int compute; | |
48 | ||
81d5f958 JO |
49 | static int setup_compute_opt_wdiff(char *opt) |
50 | { | |
51 | char *w1_str = opt; | |
52 | char *w2_str; | |
53 | ||
54 | int ret = -EINVAL; | |
55 | ||
56 | if (!opt) | |
57 | goto out; | |
58 | ||
59 | w2_str = strchr(opt, ','); | |
60 | if (!w2_str) | |
61 | goto out; | |
62 | ||
63 | *w2_str++ = 0x0; | |
64 | if (!*w2_str) | |
65 | goto out; | |
66 | ||
67 | compute_wdiff_w1 = strtol(w1_str, NULL, 10); | |
68 | compute_wdiff_w2 = strtol(w2_str, NULL, 10); | |
69 | ||
70 | if (!compute_wdiff_w1 || !compute_wdiff_w2) | |
71 | goto out; | |
72 | ||
73 | pr_debug("compute wdiff w1(%" PRId64 ") w2(%" PRId64 ")\n", | |
74 | compute_wdiff_w1, compute_wdiff_w2); | |
75 | ||
76 | ret = 0; | |
77 | ||
78 | out: | |
79 | if (ret) | |
80 | pr_err("Failed: wrong weight data, use 'wdiff:w1,w2'\n"); | |
81 | ||
82 | return ret; | |
83 | } | |
84 | ||
85 | static int setup_compute_opt(char *opt) | |
86 | { | |
87 | if (compute == COMPUTE_WEIGHTED_DIFF) | |
88 | return setup_compute_opt_wdiff(opt); | |
89 | ||
90 | if (opt) { | |
91 | pr_err("Failed: extra option specified '%s'", opt); | |
92 | return -EINVAL; | |
93 | } | |
94 | ||
95 | return 0; | |
96 | } | |
97 | ||
7aaf6b35 JO |
98 | static int setup_compute(const struct option *opt, const char *str, |
99 | int unset __maybe_unused) | |
100 | { | |
101 | int *cp = (int *) opt->value; | |
81d5f958 JO |
102 | char *cstr = (char *) str; |
103 | char buf[50]; | |
7aaf6b35 | 104 | unsigned i; |
81d5f958 | 105 | char *option; |
7aaf6b35 JO |
106 | |
107 | if (!str) { | |
108 | *cp = COMPUTE_DELTA; | |
109 | return 0; | |
110 | } | |
111 | ||
96c47f19 JO |
112 | if (*str == '+') { |
113 | sort_compute = true; | |
81d5f958 | 114 | cstr = (char *) ++str; |
96c47f19 JO |
115 | if (!*str) |
116 | return 0; | |
117 | } | |
118 | ||
81d5f958 JO |
119 | option = strchr(str, ':'); |
120 | if (option) { | |
121 | unsigned len = option++ - str; | |
122 | ||
123 | /* | |
124 | * The str data are not writeable, so we need | |
125 | * to use another buffer. | |
126 | */ | |
127 | ||
128 | /* No option value is longer. */ | |
129 | if (len >= sizeof(buf)) | |
130 | return -EINVAL; | |
131 | ||
132 | strncpy(buf, str, len); | |
133 | buf[len] = 0x0; | |
134 | cstr = buf; | |
135 | } | |
136 | ||
7aaf6b35 | 137 | for (i = 0; i < COMPUTE_MAX; i++) |
81d5f958 | 138 | if (!strcmp(cstr, compute_names[i])) { |
7aaf6b35 | 139 | *cp = i; |
81d5f958 | 140 | return setup_compute_opt(option); |
7aaf6b35 JO |
141 | } |
142 | ||
143 | pr_err("Failed: '%s' is not computation method " | |
81d5f958 | 144 | "(use 'delta','ratio' or 'wdiff')\n", str); |
7aaf6b35 JO |
145 | return -EINVAL; |
146 | } | |
147 | ||
96c47f19 JO |
148 | static double get_period_percent(struct hist_entry *he, u64 period) |
149 | { | |
150 | u64 total = he->hists->stats.total_period; | |
151 | return (period * 100.0) / total; | |
152 | } | |
153 | ||
154 | double perf_diff__compute_delta(struct hist_entry *he) | |
155 | { | |
156 | struct hist_entry *pair = he->pair; | |
157 | double new_percent = get_period_percent(he, he->stat.period); | |
158 | double old_percent = pair ? get_period_percent(pair, pair->stat.period) : 0.0; | |
159 | ||
160 | he->diff.period_ratio_delta = new_percent - old_percent; | |
161 | he->diff.computed = true; | |
162 | return he->diff.period_ratio_delta; | |
163 | } | |
164 | ||
165 | double perf_diff__compute_ratio(struct hist_entry *he) | |
166 | { | |
167 | struct hist_entry *pair = he->pair; | |
168 | double new_period = he->stat.period; | |
169 | double old_period = pair ? pair->stat.period : 0; | |
170 | ||
171 | he->diff.computed = true; | |
172 | he->diff.period_ratio = pair ? (new_period / old_period) : 0; | |
173 | return he->diff.period_ratio; | |
174 | } | |
175 | ||
81d5f958 JO |
176 | s64 perf_diff__compute_wdiff(struct hist_entry *he) |
177 | { | |
178 | struct hist_entry *pair = he->pair; | |
179 | u64 new_period = he->stat.period; | |
180 | u64 old_period = pair ? pair->stat.period : 0; | |
181 | ||
182 | he->diff.computed = true; | |
183 | ||
184 | if (!pair) | |
185 | he->diff.wdiff = 0; | |
186 | else | |
187 | he->diff.wdiff = new_period * compute_wdiff_w2 - | |
188 | old_period * compute_wdiff_w1; | |
189 | ||
190 | return he->diff.wdiff; | |
191 | } | |
192 | ||
1c02c4d2 | 193 | static int hists__add_entry(struct hists *self, |
c82ee828 | 194 | struct addr_location *al, u64 period) |
86a9eee0 | 195 | { |
c82ee828 | 196 | if (__hists__add_entry(self, al, NULL, period) != NULL) |
28e2a106 ACM |
197 | return 0; |
198 | return -ENOMEM; | |
86a9eee0 ACM |
199 | } |
200 | ||
1d037ca1 | 201 | static int diff__process_sample_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 202 | union perf_event *event, |
8d50e5b4 | 203 | struct perf_sample *sample, |
863e451f | 204 | struct perf_evsel *evsel, |
743eb868 | 205 | struct machine *machine) |
86a9eee0 ACM |
206 | { |
207 | struct addr_location al; | |
86a9eee0 | 208 | |
743eb868 | 209 | if (perf_event__preprocess_sample(event, machine, &al, sample, NULL) < 0) { |
86a9eee0 ACM |
210 | pr_warning("problem processing %d event, skipping it.\n", |
211 | event->header.type); | |
212 | return -1; | |
213 | } | |
214 | ||
cdbae314 | 215 | if (al.filtered || al.sym == NULL) |
c410a338 ACM |
216 | return 0; |
217 | ||
863e451f | 218 | if (hists__add_entry(&evsel->hists, &al, sample->period)) { |
c82ee828 | 219 | pr_warning("problem incrementing symbol period, skipping event\n"); |
86a9eee0 ACM |
220 | return -1; |
221 | } | |
222 | ||
863e451f | 223 | evsel->hists.stats.total_period += sample->period; |
86a9eee0 ACM |
224 | return 0; |
225 | } | |
226 | ||
863e451f JO |
227 | static struct perf_tool tool = { |
228 | .sample = diff__process_sample_event, | |
229 | .mmap = perf_event__process_mmap, | |
230 | .comm = perf_event__process_comm, | |
231 | .exit = perf_event__process_task, | |
232 | .fork = perf_event__process_task, | |
233 | .lost = perf_event__process_lost, | |
234 | .ordered_samples = true, | |
235 | .ordering_requires_timestamps = true, | |
86a9eee0 ACM |
236 | }; |
237 | ||
dd464345 JO |
238 | static void insert_hist_entry_by_name(struct rb_root *root, |
239 | struct hist_entry *he) | |
86a9eee0 ACM |
240 | { |
241 | struct rb_node **p = &root->rb_node; | |
242 | struct rb_node *parent = NULL; | |
243 | struct hist_entry *iter; | |
244 | ||
245 | while (*p != NULL) { | |
86a9eee0 ACM |
246 | parent = *p; |
247 | iter = rb_entry(parent, struct hist_entry, rb_node); | |
9c443dfd | 248 | if (hist_entry__cmp(he, iter) < 0) |
86a9eee0 | 249 | p = &(*p)->rb_left; |
9c443dfd | 250 | else |
86a9eee0 | 251 | p = &(*p)->rb_right; |
86a9eee0 ACM |
252 | } |
253 | ||
254 | rb_link_node(&he->rb_node, parent, p); | |
255 | rb_insert_color(&he->rb_node, root); | |
256 | } | |
257 | ||
dd464345 | 258 | static void hists__name_resort(struct hists *self, bool sort) |
86a9eee0 ACM |
259 | { |
260 | unsigned long position = 1; | |
261 | struct rb_root tmp = RB_ROOT; | |
1c02c4d2 | 262 | struct rb_node *next = rb_first(&self->entries); |
86a9eee0 ACM |
263 | |
264 | while (next != NULL) { | |
265 | struct hist_entry *n = rb_entry(next, struct hist_entry, rb_node); | |
266 | ||
267 | next = rb_next(&n->rb_node); | |
86a9eee0 | 268 | n->position = position++; |
dd464345 JO |
269 | |
270 | if (sort) { | |
271 | rb_erase(&n->rb_node, &self->entries); | |
272 | insert_hist_entry_by_name(&tmp, n); | |
273 | } | |
86a9eee0 ACM |
274 | } |
275 | ||
dd464345 JO |
276 | if (sort) |
277 | self->entries = tmp; | |
86a9eee0 ACM |
278 | } |
279 | ||
1c02c4d2 ACM |
280 | static struct hist_entry *hists__find_entry(struct hists *self, |
281 | struct hist_entry *he) | |
86a9eee0 | 282 | { |
1c02c4d2 | 283 | struct rb_node *n = self->entries.rb_node; |
86a9eee0 ACM |
284 | |
285 | while (n) { | |
286 | struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node); | |
9c443dfd | 287 | int64_t cmp = hist_entry__cmp(he, iter); |
86a9eee0 | 288 | |
9c443dfd | 289 | if (cmp < 0) |
86a9eee0 | 290 | n = n->rb_left; |
9c443dfd | 291 | else if (cmp > 0) |
86a9eee0 | 292 | n = n->rb_right; |
dd464345 | 293 | else |
9c443dfd | 294 | return iter; |
86a9eee0 ACM |
295 | } |
296 | ||
297 | return NULL; | |
298 | } | |
299 | ||
1c02c4d2 | 300 | static void hists__match(struct hists *older, struct hists *newer) |
86a9eee0 ACM |
301 | { |
302 | struct rb_node *nd; | |
303 | ||
1c02c4d2 | 304 | for (nd = rb_first(&newer->entries); nd; nd = rb_next(nd)) { |
86a9eee0 | 305 | struct hist_entry *pos = rb_entry(nd, struct hist_entry, rb_node); |
1c02c4d2 | 306 | pos->pair = hists__find_entry(older, pos); |
86a9eee0 ACM |
307 | } |
308 | } | |
309 | ||
863e451f JO |
310 | static struct perf_evsel *evsel_match(struct perf_evsel *evsel, |
311 | struct perf_evlist *evlist) | |
312 | { | |
313 | struct perf_evsel *e; | |
314 | ||
315 | list_for_each_entry(e, &evlist->entries, node) | |
316 | if (perf_evsel__match2(evsel, e)) | |
317 | return e; | |
318 | ||
319 | return NULL; | |
320 | } | |
321 | ||
dd464345 JO |
322 | static void perf_evlist__resort_hists(struct perf_evlist *evlist, bool name) |
323 | { | |
324 | struct perf_evsel *evsel; | |
325 | ||
326 | list_for_each_entry(evsel, &evlist->entries, node) { | |
327 | struct hists *hists = &evsel->hists; | |
328 | ||
329 | hists__output_resort(hists); | |
330 | ||
331 | /* | |
332 | * The hists__name_resort only sets possition | |
333 | * if name is false. | |
334 | */ | |
335 | if (name || ((!name) && show_displacement)) | |
336 | hists__name_resort(hists, name); | |
337 | } | |
338 | } | |
339 | ||
a06d143e JO |
340 | static void hists__baseline_only(struct hists *hists) |
341 | { | |
342 | struct rb_node *next = rb_first(&hists->entries); | |
343 | ||
344 | while (next != NULL) { | |
345 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node); | |
346 | ||
347 | next = rb_next(&he->rb_node); | |
348 | if (!he->pair) { | |
349 | rb_erase(&he->rb_node, &hists->entries); | |
350 | hist_entry__free(he); | |
351 | } | |
352 | } | |
353 | } | |
354 | ||
96c47f19 JO |
355 | static void hists__precompute(struct hists *hists) |
356 | { | |
357 | struct rb_node *next = rb_first(&hists->entries); | |
358 | ||
359 | while (next != NULL) { | |
360 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node); | |
361 | ||
362 | next = rb_next(&he->rb_node); | |
363 | ||
364 | switch (compute) { | |
365 | case COMPUTE_DELTA: | |
366 | perf_diff__compute_delta(he); | |
367 | break; | |
368 | case COMPUTE_RATIO: | |
369 | perf_diff__compute_ratio(he); | |
370 | break; | |
81d5f958 JO |
371 | case COMPUTE_WEIGHTED_DIFF: |
372 | perf_diff__compute_wdiff(he); | |
373 | break; | |
96c47f19 JO |
374 | default: |
375 | BUG_ON(1); | |
376 | } | |
377 | } | |
378 | } | |
379 | ||
380 | static int64_t cmp_doubles(double l, double r) | |
381 | { | |
382 | if (l > r) | |
383 | return -1; | |
384 | else if (l < r) | |
385 | return 1; | |
386 | else | |
387 | return 0; | |
388 | } | |
389 | ||
390 | static int64_t | |
391 | hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, | |
392 | int c) | |
393 | { | |
394 | switch (c) { | |
395 | case COMPUTE_DELTA: | |
396 | { | |
397 | double l = left->diff.period_ratio_delta; | |
398 | double r = right->diff.period_ratio_delta; | |
399 | ||
400 | return cmp_doubles(l, r); | |
401 | } | |
402 | case COMPUTE_RATIO: | |
403 | { | |
404 | double l = left->diff.period_ratio; | |
405 | double r = right->diff.period_ratio; | |
406 | ||
407 | return cmp_doubles(l, r); | |
408 | } | |
81d5f958 JO |
409 | case COMPUTE_WEIGHTED_DIFF: |
410 | { | |
411 | s64 l = left->diff.wdiff; | |
412 | s64 r = right->diff.wdiff; | |
413 | ||
414 | return r - l; | |
415 | } | |
96c47f19 JO |
416 | default: |
417 | BUG_ON(1); | |
418 | } | |
419 | ||
420 | return 0; | |
421 | } | |
422 | ||
423 | static void insert_hist_entry_by_compute(struct rb_root *root, | |
424 | struct hist_entry *he, | |
425 | int c) | |
426 | { | |
427 | struct rb_node **p = &root->rb_node; | |
428 | struct rb_node *parent = NULL; | |
429 | struct hist_entry *iter; | |
430 | ||
431 | while (*p != NULL) { | |
432 | parent = *p; | |
433 | iter = rb_entry(parent, struct hist_entry, rb_node); | |
434 | if (hist_entry__cmp_compute(he, iter, c) < 0) | |
435 | p = &(*p)->rb_left; | |
436 | else | |
437 | p = &(*p)->rb_right; | |
438 | } | |
439 | ||
440 | rb_link_node(&he->rb_node, parent, p); | |
441 | rb_insert_color(&he->rb_node, root); | |
442 | } | |
443 | ||
444 | static void hists__compute_resort(struct hists *hists) | |
445 | { | |
446 | struct rb_root tmp = RB_ROOT; | |
447 | struct rb_node *next = rb_first(&hists->entries); | |
448 | ||
449 | while (next != NULL) { | |
450 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node); | |
451 | ||
452 | next = rb_next(&he->rb_node); | |
453 | ||
454 | rb_erase(&he->rb_node, &hists->entries); | |
455 | insert_hist_entry_by_compute(&tmp, he, compute); | |
456 | } | |
457 | ||
458 | hists->entries = tmp; | |
459 | } | |
460 | ||
a06d143e JO |
461 | static void hists__process(struct hists *old, struct hists *new) |
462 | { | |
463 | hists__match(old, new); | |
464 | ||
465 | if (show_baseline_only) | |
466 | hists__baseline_only(new); | |
467 | ||
96c47f19 JO |
468 | if (sort_compute) { |
469 | hists__precompute(new); | |
470 | hists__compute_resort(new); | |
471 | } | |
472 | ||
a06d143e JO |
473 | hists__fprintf(new, true, 0, 0, stdout); |
474 | } | |
475 | ||
86a9eee0 ACM |
476 | static int __cmd_diff(void) |
477 | { | |
478 | int ret, i; | |
4bf9ce1b JO |
479 | #define older (session[0]) |
480 | #define newer (session[1]) | |
86a9eee0 | 481 | struct perf_session *session[2]; |
863e451f JO |
482 | struct perf_evlist *evlist_new, *evlist_old; |
483 | struct perf_evsel *evsel; | |
484 | bool first = true; | |
86a9eee0 | 485 | |
4bf9ce1b | 486 | older = perf_session__new(input_old, O_RDONLY, force, false, |
863e451f | 487 | &tool); |
4bf9ce1b | 488 | newer = perf_session__new(input_new, O_RDONLY, force, false, |
863e451f | 489 | &tool); |
86a9eee0 ACM |
490 | if (session[0] == NULL || session[1] == NULL) |
491 | return -ENOMEM; | |
492 | ||
493 | for (i = 0; i < 2; ++i) { | |
863e451f | 494 | ret = perf_session__process_events(session[i], &tool); |
86a9eee0 ACM |
495 | if (ret) |
496 | goto out_delete; | |
86a9eee0 ACM |
497 | } |
498 | ||
863e451f JO |
499 | evlist_old = older->evlist; |
500 | evlist_new = newer->evlist; | |
501 | ||
dd464345 JO |
502 | perf_evlist__resort_hists(evlist_old, true); |
503 | perf_evlist__resort_hists(evlist_new, false); | |
863e451f JO |
504 | |
505 | list_for_each_entry(evsel, &evlist_new->entries, node) { | |
506 | struct perf_evsel *evsel_old; | |
507 | ||
508 | evsel_old = evsel_match(evsel, evlist_old); | |
509 | if (!evsel_old) | |
510 | continue; | |
511 | ||
512 | fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", | |
513 | perf_evsel__name(evsel)); | |
514 | ||
515 | first = false; | |
516 | ||
a06d143e | 517 | hists__process(&evsel_old->hists, &evsel->hists); |
863e451f | 518 | } |
9c443dfd | 519 | |
86a9eee0 ACM |
520 | out_delete: |
521 | for (i = 0; i < 2; ++i) | |
522 | perf_session__delete(session[i]); | |
523 | return ret; | |
4bf9ce1b JO |
524 | #undef older |
525 | #undef newer | |
86a9eee0 ACM |
526 | } |
527 | ||
0422a4fc | 528 | static const char * const diff_usage[] = { |
86a9eee0 | 529 | "perf diff [<options>] [old_file] [new_file]", |
0422a4fc | 530 | NULL, |
86a9eee0 ACM |
531 | }; |
532 | ||
533 | static const struct option options[] = { | |
c0555642 | 534 | OPT_INCR('v', "verbose", &verbose, |
86a9eee0 | 535 | "be more verbose (show symbol address, etc)"), |
34295559 | 536 | OPT_BOOLEAN('M', "displacement", &show_displacement, |
c351c281 | 537 | "Show position displacement relative to baseline"), |
a06d143e JO |
538 | OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, |
539 | "Show only items with match in baseline"), | |
81d5f958 JO |
540 | OPT_CALLBACK('c', "compute", &compute, |
541 | "delta,ratio,wdiff:w1,w2 (default delta)", | |
7aaf6b35 JO |
542 | "Entries differential computation selection", |
543 | setup_compute), | |
61949b21 JO |
544 | OPT_BOOLEAN('p', "period", &show_period, |
545 | "Show period values."), | |
86a9eee0 ACM |
546 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
547 | "dump raw trace in ASCII"), | |
548 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
549 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, | |
550 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
c410a338 ACM |
551 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
552 | "only consider symbols in these dsos"), | |
553 | OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
554 | "only consider symbols in these comms"), | |
555 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
556 | "only consider these symbols"), | |
c351c281 ACM |
557 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
558 | "sort by key(s): pid, comm, dso, symbol, parent"), | |
559 | OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator", | |
560 | "separator for columns, no spaces will be added between " | |
561 | "columns '.' is reserved."), | |
ec5761ea DA |
562 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
563 | "Look for files with symbols relative to this directory"), | |
86a9eee0 ACM |
564 | OPT_END() |
565 | }; | |
566 | ||
1d77822e JO |
567 | static void ui_init(void) |
568 | { | |
569 | perf_hpp__init(); | |
570 | ||
571 | /* No overhead column. */ | |
572 | perf_hpp__column_enable(PERF_HPP__OVERHEAD, false); | |
573 | ||
61949b21 | 574 | /* Display baseline/delta/ratio/displacement/periods columns. */ |
1d77822e | 575 | perf_hpp__column_enable(PERF_HPP__BASELINE, true); |
7aaf6b35 JO |
576 | |
577 | switch (compute) { | |
578 | case COMPUTE_DELTA: | |
579 | perf_hpp__column_enable(PERF_HPP__DELTA, true); | |
580 | break; | |
581 | case COMPUTE_RATIO: | |
582 | perf_hpp__column_enable(PERF_HPP__RATIO, true); | |
81d5f958 JO |
583 | break; |
584 | case COMPUTE_WEIGHTED_DIFF: | |
585 | perf_hpp__column_enable(PERF_HPP__WEIGHTED_DIFF, true); | |
7aaf6b35 JO |
586 | break; |
587 | default: | |
588 | BUG_ON(1); | |
589 | }; | |
1d77822e JO |
590 | |
591 | if (show_displacement) | |
592 | perf_hpp__column_enable(PERF_HPP__DISPL, true); | |
61949b21 JO |
593 | |
594 | if (show_period) { | |
595 | perf_hpp__column_enable(PERF_HPP__PERIOD, true); | |
596 | perf_hpp__column_enable(PERF_HPP__PERIOD_BASELINE, true); | |
597 | } | |
1d77822e JO |
598 | } |
599 | ||
1d037ca1 | 600 | int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused) |
86a9eee0 | 601 | { |
604c5c92 | 602 | sort_order = diff__default_sort_order; |
86a9eee0 ACM |
603 | argc = parse_options(argc, argv, options, diff_usage, 0); |
604 | if (argc) { | |
605 | if (argc > 2) | |
606 | usage_with_options(diff_usage, options); | |
607 | if (argc == 2) { | |
608 | input_old = argv[0]; | |
609 | input_new = argv[1]; | |
610 | } else | |
611 | input_new = argv[0]; | |
a1645ce1 ZY |
612 | } else if (symbol_conf.default_guest_vmlinux_name || |
613 | symbol_conf.default_guest_kallsyms) { | |
614 | input_old = "perf.data.host"; | |
615 | input_new = "perf.data.guest"; | |
86a9eee0 ACM |
616 | } |
617 | ||
c351c281 | 618 | symbol_conf.exclude_other = false; |
655000e7 ACM |
619 | if (symbol__init() < 0) |
620 | return -1; | |
621 | ||
1d77822e JO |
622 | ui_init(); |
623 | ||
655000e7 | 624 | setup_sorting(diff_usage, options); |
86a9eee0 | 625 | setup_pager(); |
c351c281 ACM |
626 | |
627 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", NULL); | |
628 | sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", NULL); | |
629 | sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", NULL); | |
630 | ||
86a9eee0 ACM |
631 | return __cmd_diff(); |
632 | } |