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; |
61949b21 | 26 | static bool show_period; |
ed279da2 | 27 | static bool show_formula; |
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 | ||
05472daa | 148 | double perf_diff__period_percent(struct hist_entry *he, u64 period) |
96c47f19 JO |
149 | { |
150 | u64 total = he->hists->stats.total_period; | |
151 | return (period * 100.0) / total; | |
152 | } | |
153 | ||
05472daa | 154 | double perf_diff__compute_delta(struct hist_entry *he, struct hist_entry *pair) |
96c47f19 | 155 | { |
05472daa JO |
156 | double new_percent = perf_diff__period_percent(he, he->stat.period); |
157 | double old_percent = perf_diff__period_percent(pair, pair->stat.period); | |
96c47f19 JO |
158 | |
159 | he->diff.period_ratio_delta = new_percent - old_percent; | |
160 | he->diff.computed = true; | |
161 | return he->diff.period_ratio_delta; | |
162 | } | |
163 | ||
05472daa | 164 | double perf_diff__compute_ratio(struct hist_entry *he, struct hist_entry *pair) |
96c47f19 | 165 | { |
96c47f19 | 166 | double new_period = he->stat.period; |
05472daa | 167 | double old_period = pair->stat.period; |
96c47f19 JO |
168 | |
169 | he->diff.computed = true; | |
05472daa | 170 | he->diff.period_ratio = new_period / old_period; |
96c47f19 JO |
171 | return he->diff.period_ratio; |
172 | } | |
173 | ||
05472daa | 174 | s64 perf_diff__compute_wdiff(struct hist_entry *he, struct hist_entry *pair) |
81d5f958 | 175 | { |
81d5f958 | 176 | u64 new_period = he->stat.period; |
05472daa | 177 | u64 old_period = pair->stat.period; |
81d5f958 JO |
178 | |
179 | he->diff.computed = true; | |
05472daa JO |
180 | he->diff.wdiff = new_period * compute_wdiff_w2 - |
181 | old_period * compute_wdiff_w1; | |
81d5f958 JO |
182 | |
183 | return he->diff.wdiff; | |
184 | } | |
185 | ||
f4c8bae1 JO |
186 | static int formula_delta(struct hist_entry *he, struct hist_entry *pair, |
187 | char *buf, size_t size) | |
ed279da2 | 188 | { |
ed279da2 JO |
189 | return scnprintf(buf, size, |
190 | "(%" PRIu64 " * 100 / %" PRIu64 ") - " | |
191 | "(%" PRIu64 " * 100 / %" PRIu64 ")", | |
192 | he->stat.period, he->hists->stats.total_period, | |
193 | pair->stat.period, pair->hists->stats.total_period); | |
194 | } | |
195 | ||
f4c8bae1 JO |
196 | static int formula_ratio(struct hist_entry *he, struct hist_entry *pair, |
197 | char *buf, size_t size) | |
ed279da2 | 198 | { |
ed279da2 | 199 | double new_period = he->stat.period; |
f4c8bae1 | 200 | double old_period = pair->stat.period; |
ed279da2 JO |
201 | |
202 | return scnprintf(buf, size, "%.0F / %.0F", new_period, old_period); | |
203 | } | |
204 | ||
f4c8bae1 JO |
205 | static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair, |
206 | char *buf, size_t size) | |
ed279da2 | 207 | { |
ed279da2 | 208 | u64 new_period = he->stat.period; |
f4c8bae1 | 209 | u64 old_period = pair->stat.period; |
ed279da2 JO |
210 | |
211 | return scnprintf(buf, size, | |
212 | "(%" PRIu64 " * " "%" PRId64 ") - (%" PRIu64 " * " "%" PRId64 ")", | |
213 | new_period, compute_wdiff_w2, old_period, compute_wdiff_w1); | |
214 | } | |
215 | ||
f4c8bae1 JO |
216 | int perf_diff__formula(struct hist_entry *he, struct hist_entry *pair, |
217 | char *buf, size_t size) | |
ed279da2 JO |
218 | { |
219 | switch (compute) { | |
220 | case COMPUTE_DELTA: | |
f4c8bae1 | 221 | return formula_delta(he, pair, buf, size); |
ed279da2 | 222 | case COMPUTE_RATIO: |
f4c8bae1 | 223 | return formula_ratio(he, pair, buf, size); |
ed279da2 | 224 | case COMPUTE_WEIGHTED_DIFF: |
f4c8bae1 | 225 | return formula_wdiff(he, pair, buf, size); |
ed279da2 JO |
226 | default: |
227 | BUG_ON(1); | |
228 | } | |
229 | ||
230 | return -1; | |
231 | } | |
232 | ||
1c02c4d2 | 233 | static int hists__add_entry(struct hists *self, |
c82ee828 | 234 | struct addr_location *al, u64 period) |
86a9eee0 | 235 | { |
c82ee828 | 236 | if (__hists__add_entry(self, al, NULL, period) != NULL) |
28e2a106 ACM |
237 | return 0; |
238 | return -ENOMEM; | |
86a9eee0 ACM |
239 | } |
240 | ||
1d037ca1 | 241 | static int diff__process_sample_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 242 | union perf_event *event, |
8d50e5b4 | 243 | struct perf_sample *sample, |
863e451f | 244 | struct perf_evsel *evsel, |
743eb868 | 245 | struct machine *machine) |
86a9eee0 ACM |
246 | { |
247 | struct addr_location al; | |
86a9eee0 | 248 | |
743eb868 | 249 | if (perf_event__preprocess_sample(event, machine, &al, sample, NULL) < 0) { |
86a9eee0 ACM |
250 | pr_warning("problem processing %d event, skipping it.\n", |
251 | event->header.type); | |
252 | return -1; | |
253 | } | |
254 | ||
d88c48f9 | 255 | if (al.filtered) |
c410a338 ACM |
256 | return 0; |
257 | ||
863e451f | 258 | if (hists__add_entry(&evsel->hists, &al, sample->period)) { |
c82ee828 | 259 | pr_warning("problem incrementing symbol period, skipping event\n"); |
86a9eee0 ACM |
260 | return -1; |
261 | } | |
262 | ||
863e451f | 263 | evsel->hists.stats.total_period += sample->period; |
86a9eee0 ACM |
264 | return 0; |
265 | } | |
266 | ||
863e451f JO |
267 | static struct perf_tool tool = { |
268 | .sample = diff__process_sample_event, | |
269 | .mmap = perf_event__process_mmap, | |
270 | .comm = perf_event__process_comm, | |
f62d3f0f ACM |
271 | .exit = perf_event__process_exit, |
272 | .fork = perf_event__process_fork, | |
863e451f JO |
273 | .lost = perf_event__process_lost, |
274 | .ordered_samples = true, | |
275 | .ordering_requires_timestamps = true, | |
86a9eee0 ACM |
276 | }; |
277 | ||
863e451f JO |
278 | static struct perf_evsel *evsel_match(struct perf_evsel *evsel, |
279 | struct perf_evlist *evlist) | |
280 | { | |
281 | struct perf_evsel *e; | |
282 | ||
283 | list_for_each_entry(e, &evlist->entries, node) | |
284 | if (perf_evsel__match2(evsel, e)) | |
285 | return e; | |
286 | ||
287 | return NULL; | |
288 | } | |
289 | ||
ce74f60e | 290 | static void perf_evlist__collapse_resort(struct perf_evlist *evlist) |
dd464345 JO |
291 | { |
292 | struct perf_evsel *evsel; | |
293 | ||
294 | list_for_each_entry(evsel, &evlist->entries, node) { | |
295 | struct hists *hists = &evsel->hists; | |
296 | ||
ce74f60e | 297 | hists__collapse_resort(hists); |
dd464345 JO |
298 | } |
299 | } | |
300 | ||
a06d143e JO |
301 | static void hists__baseline_only(struct hists *hists) |
302 | { | |
ce74f60e NK |
303 | struct rb_root *root; |
304 | struct rb_node *next; | |
305 | ||
306 | if (sort__need_collapse) | |
307 | root = &hists->entries_collapsed; | |
308 | else | |
309 | root = hists->entries_in; | |
a06d143e | 310 | |
ce74f60e | 311 | next = rb_first(root); |
a06d143e | 312 | while (next != NULL) { |
ce74f60e | 313 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in); |
a06d143e | 314 | |
ce74f60e | 315 | next = rb_next(&he->rb_node_in); |
b821c732 | 316 | if (!hist_entry__next_pair(he)) { |
ce74f60e | 317 | rb_erase(&he->rb_node_in, root); |
a06d143e JO |
318 | hist_entry__free(he); |
319 | } | |
320 | } | |
321 | } | |
322 | ||
96c47f19 JO |
323 | static void hists__precompute(struct hists *hists) |
324 | { | |
325 | struct rb_node *next = rb_first(&hists->entries); | |
326 | ||
327 | while (next != NULL) { | |
328 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node); | |
05472daa | 329 | struct hist_entry *pair = hist_entry__next_pair(he); |
96c47f19 JO |
330 | |
331 | next = rb_next(&he->rb_node); | |
05472daa JO |
332 | if (!pair) |
333 | continue; | |
96c47f19 JO |
334 | |
335 | switch (compute) { | |
336 | case COMPUTE_DELTA: | |
05472daa | 337 | perf_diff__compute_delta(he, pair); |
96c47f19 JO |
338 | break; |
339 | case COMPUTE_RATIO: | |
05472daa | 340 | perf_diff__compute_ratio(he, pair); |
96c47f19 | 341 | break; |
81d5f958 | 342 | case COMPUTE_WEIGHTED_DIFF: |
05472daa | 343 | perf_diff__compute_wdiff(he, pair); |
81d5f958 | 344 | break; |
96c47f19 JO |
345 | default: |
346 | BUG_ON(1); | |
347 | } | |
348 | } | |
349 | } | |
350 | ||
351 | static int64_t cmp_doubles(double l, double r) | |
352 | { | |
353 | if (l > r) | |
354 | return -1; | |
355 | else if (l < r) | |
356 | return 1; | |
357 | else | |
358 | return 0; | |
359 | } | |
360 | ||
361 | static int64_t | |
362 | hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, | |
363 | int c) | |
364 | { | |
365 | switch (c) { | |
366 | case COMPUTE_DELTA: | |
367 | { | |
368 | double l = left->diff.period_ratio_delta; | |
369 | double r = right->diff.period_ratio_delta; | |
370 | ||
371 | return cmp_doubles(l, r); | |
372 | } | |
373 | case COMPUTE_RATIO: | |
374 | { | |
375 | double l = left->diff.period_ratio; | |
376 | double r = right->diff.period_ratio; | |
377 | ||
378 | return cmp_doubles(l, r); | |
379 | } | |
81d5f958 JO |
380 | case COMPUTE_WEIGHTED_DIFF: |
381 | { | |
382 | s64 l = left->diff.wdiff; | |
383 | s64 r = right->diff.wdiff; | |
384 | ||
385 | return r - l; | |
386 | } | |
96c47f19 JO |
387 | default: |
388 | BUG_ON(1); | |
389 | } | |
390 | ||
391 | return 0; | |
392 | } | |
393 | ||
394 | static void insert_hist_entry_by_compute(struct rb_root *root, | |
395 | struct hist_entry *he, | |
396 | int c) | |
397 | { | |
398 | struct rb_node **p = &root->rb_node; | |
399 | struct rb_node *parent = NULL; | |
400 | struct hist_entry *iter; | |
401 | ||
402 | while (*p != NULL) { | |
403 | parent = *p; | |
404 | iter = rb_entry(parent, struct hist_entry, rb_node); | |
405 | if (hist_entry__cmp_compute(he, iter, c) < 0) | |
406 | p = &(*p)->rb_left; | |
407 | else | |
408 | p = &(*p)->rb_right; | |
409 | } | |
410 | ||
411 | rb_link_node(&he->rb_node, parent, p); | |
412 | rb_insert_color(&he->rb_node, root); | |
413 | } | |
414 | ||
415 | static void hists__compute_resort(struct hists *hists) | |
416 | { | |
66f97ed3 NK |
417 | struct rb_root *root; |
418 | struct rb_node *next; | |
419 | ||
420 | if (sort__need_collapse) | |
421 | root = &hists->entries_collapsed; | |
422 | else | |
423 | root = hists->entries_in; | |
424 | ||
425 | hists->entries = RB_ROOT; | |
426 | next = rb_first(root); | |
427 | ||
428 | hists->nr_entries = 0; | |
429 | hists->stats.total_period = 0; | |
430 | hists__reset_col_len(hists); | |
96c47f19 JO |
431 | |
432 | while (next != NULL) { | |
66f97ed3 | 433 | struct hist_entry *he; |
96c47f19 | 434 | |
66f97ed3 NK |
435 | he = rb_entry(next, struct hist_entry, rb_node_in); |
436 | next = rb_next(&he->rb_node_in); | |
96c47f19 | 437 | |
66f97ed3 NK |
438 | insert_hist_entry_by_compute(&hists->entries, he, compute); |
439 | hists__inc_nr_entries(hists, he); | |
96c47f19 | 440 | } |
96c47f19 JO |
441 | } |
442 | ||
a06d143e JO |
443 | static void hists__process(struct hists *old, struct hists *new) |
444 | { | |
95529be4 | 445 | hists__match(new, old); |
a06d143e JO |
446 | |
447 | if (show_baseline_only) | |
448 | hists__baseline_only(new); | |
bfaef4b4 ACM |
449 | else |
450 | hists__link(new, old); | |
a06d143e | 451 | |
96c47f19 JO |
452 | if (sort_compute) { |
453 | hists__precompute(new); | |
454 | hists__compute_resort(new); | |
66f97ed3 NK |
455 | } else { |
456 | hists__output_resort(new); | |
96c47f19 JO |
457 | } |
458 | ||
a06d143e JO |
459 | hists__fprintf(new, true, 0, 0, stdout); |
460 | } | |
461 | ||
86a9eee0 ACM |
462 | static int __cmd_diff(void) |
463 | { | |
464 | int ret, i; | |
4bf9ce1b JO |
465 | #define older (session[0]) |
466 | #define newer (session[1]) | |
86a9eee0 | 467 | struct perf_session *session[2]; |
863e451f JO |
468 | struct perf_evlist *evlist_new, *evlist_old; |
469 | struct perf_evsel *evsel; | |
470 | bool first = true; | |
86a9eee0 | 471 | |
4bf9ce1b | 472 | older = perf_session__new(input_old, O_RDONLY, force, false, |
863e451f | 473 | &tool); |
4bf9ce1b | 474 | newer = perf_session__new(input_new, O_RDONLY, force, false, |
863e451f | 475 | &tool); |
86a9eee0 ACM |
476 | if (session[0] == NULL || session[1] == NULL) |
477 | return -ENOMEM; | |
478 | ||
479 | for (i = 0; i < 2; ++i) { | |
863e451f | 480 | ret = perf_session__process_events(session[i], &tool); |
86a9eee0 ACM |
481 | if (ret) |
482 | goto out_delete; | |
86a9eee0 ACM |
483 | } |
484 | ||
863e451f JO |
485 | evlist_old = older->evlist; |
486 | evlist_new = newer->evlist; | |
487 | ||
ce74f60e NK |
488 | perf_evlist__collapse_resort(evlist_old); |
489 | perf_evlist__collapse_resort(evlist_new); | |
863e451f JO |
490 | |
491 | list_for_each_entry(evsel, &evlist_new->entries, node) { | |
492 | struct perf_evsel *evsel_old; | |
493 | ||
494 | evsel_old = evsel_match(evsel, evlist_old); | |
495 | if (!evsel_old) | |
496 | continue; | |
497 | ||
498 | fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", | |
499 | perf_evsel__name(evsel)); | |
500 | ||
501 | first = false; | |
502 | ||
a06d143e | 503 | hists__process(&evsel_old->hists, &evsel->hists); |
863e451f | 504 | } |
9c443dfd | 505 | |
86a9eee0 ACM |
506 | out_delete: |
507 | for (i = 0; i < 2; ++i) | |
508 | perf_session__delete(session[i]); | |
509 | return ret; | |
4bf9ce1b JO |
510 | #undef older |
511 | #undef newer | |
86a9eee0 ACM |
512 | } |
513 | ||
0422a4fc | 514 | static const char * const diff_usage[] = { |
86a9eee0 | 515 | "perf diff [<options>] [old_file] [new_file]", |
0422a4fc | 516 | NULL, |
86a9eee0 ACM |
517 | }; |
518 | ||
519 | static const struct option options[] = { | |
c0555642 | 520 | OPT_INCR('v', "verbose", &verbose, |
86a9eee0 | 521 | "be more verbose (show symbol address, etc)"), |
a06d143e JO |
522 | OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, |
523 | "Show only items with match in baseline"), | |
81d5f958 JO |
524 | OPT_CALLBACK('c', "compute", &compute, |
525 | "delta,ratio,wdiff:w1,w2 (default delta)", | |
7aaf6b35 JO |
526 | "Entries differential computation selection", |
527 | setup_compute), | |
61949b21 JO |
528 | OPT_BOOLEAN('p', "period", &show_period, |
529 | "Show period values."), | |
ed279da2 JO |
530 | OPT_BOOLEAN('F', "formula", &show_formula, |
531 | "Show formula."), | |
86a9eee0 ACM |
532 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
533 | "dump raw trace in ASCII"), | |
534 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
535 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, | |
536 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
c410a338 ACM |
537 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
538 | "only consider symbols in these dsos"), | |
539 | OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
540 | "only consider symbols in these comms"), | |
541 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
542 | "only consider these symbols"), | |
c351c281 ACM |
543 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
544 | "sort by key(s): pid, comm, dso, symbol, parent"), | |
545 | OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator", | |
546 | "separator for columns, no spaces will be added between " | |
547 | "columns '.' is reserved."), | |
ec5761ea DA |
548 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
549 | "Look for files with symbols relative to this directory"), | |
86a9eee0 ACM |
550 | OPT_END() |
551 | }; | |
552 | ||
1d77822e JO |
553 | static void ui_init(void) |
554 | { | |
ed279da2 | 555 | /* |
db6d0bb8 | 556 | * Display baseline/delta/ratio |
ed279da2 JO |
557 | * formula/periods columns. |
558 | */ | |
1240005e | 559 | perf_hpp__column_enable(PERF_HPP__BASELINE); |
7aaf6b35 JO |
560 | |
561 | switch (compute) { | |
562 | case COMPUTE_DELTA: | |
1240005e | 563 | perf_hpp__column_enable(PERF_HPP__DELTA); |
7aaf6b35 JO |
564 | break; |
565 | case COMPUTE_RATIO: | |
1240005e | 566 | perf_hpp__column_enable(PERF_HPP__RATIO); |
81d5f958 JO |
567 | break; |
568 | case COMPUTE_WEIGHTED_DIFF: | |
1240005e | 569 | perf_hpp__column_enable(PERF_HPP__WEIGHTED_DIFF); |
7aaf6b35 JO |
570 | break; |
571 | default: | |
572 | BUG_ON(1); | |
573 | }; | |
1d77822e | 574 | |
ed279da2 | 575 | if (show_formula) |
1240005e | 576 | perf_hpp__column_enable(PERF_HPP__FORMULA); |
ed279da2 | 577 | |
61949b21 | 578 | if (show_period) { |
1240005e JO |
579 | perf_hpp__column_enable(PERF_HPP__PERIOD); |
580 | perf_hpp__column_enable(PERF_HPP__PERIOD_BASELINE); | |
61949b21 | 581 | } |
1d77822e JO |
582 | } |
583 | ||
1d037ca1 | 584 | int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused) |
86a9eee0 | 585 | { |
604c5c92 | 586 | sort_order = diff__default_sort_order; |
86a9eee0 ACM |
587 | argc = parse_options(argc, argv, options, diff_usage, 0); |
588 | if (argc) { | |
589 | if (argc > 2) | |
590 | usage_with_options(diff_usage, options); | |
591 | if (argc == 2) { | |
592 | input_old = argv[0]; | |
593 | input_new = argv[1]; | |
594 | } else | |
595 | input_new = argv[0]; | |
a1645ce1 ZY |
596 | } else if (symbol_conf.default_guest_vmlinux_name || |
597 | symbol_conf.default_guest_kallsyms) { | |
598 | input_old = "perf.data.host"; | |
599 | input_new = "perf.data.guest"; | |
86a9eee0 ACM |
600 | } |
601 | ||
c351c281 | 602 | symbol_conf.exclude_other = false; |
655000e7 ACM |
603 | if (symbol__init() < 0) |
604 | return -1; | |
605 | ||
1d77822e JO |
606 | ui_init(); |
607 | ||
55309985 NK |
608 | if (setup_sorting() < 0) |
609 | usage_with_options(diff_usage, options); | |
610 | ||
86a9eee0 | 611 | setup_pager(); |
c351c281 ACM |
612 | |
613 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", NULL); | |
614 | sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", NULL); | |
615 | sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", NULL); | |
616 | ||
86a9eee0 ACM |
617 | return __cmd_diff(); |
618 | } |