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 | ||
ec308426 JO |
22 | struct data__file { |
23 | struct perf_session *session; | |
24 | const char *file; | |
25 | int idx; | |
26 | }; | |
27 | ||
28 | static struct data__file *data__files; | |
29 | static int data__files_cnt; | |
30 | ||
31 | #define data__for_each_file_start(i, d, s) \ | |
32 | for (i = s, d = &data__files[s]; \ | |
33 | i < data__files_cnt; \ | |
34 | i++, d = &data__files[i]) | |
35 | ||
36 | #define data__for_each_file(i, d) data__for_each_file_start(i, d, 0) | |
37 | ||
38 | static char diff__default_sort_order[] = "dso,symbol"; | |
39 | static bool force; | |
61949b21 | 40 | static bool show_period; |
ed279da2 | 41 | static bool show_formula; |
a06d143e | 42 | static bool show_baseline_only; |
96c47f19 | 43 | static bool sort_compute; |
86a9eee0 | 44 | |
81d5f958 JO |
45 | static s64 compute_wdiff_w1; |
46 | static s64 compute_wdiff_w2; | |
47 | ||
7aaf6b35 JO |
48 | enum { |
49 | COMPUTE_DELTA, | |
50 | COMPUTE_RATIO, | |
81d5f958 | 51 | COMPUTE_WEIGHTED_DIFF, |
7aaf6b35 JO |
52 | COMPUTE_MAX, |
53 | }; | |
54 | ||
55 | const char *compute_names[COMPUTE_MAX] = { | |
56 | [COMPUTE_DELTA] = "delta", | |
57 | [COMPUTE_RATIO] = "ratio", | |
81d5f958 | 58 | [COMPUTE_WEIGHTED_DIFF] = "wdiff", |
7aaf6b35 JO |
59 | }; |
60 | ||
61 | static int compute; | |
62 | ||
81d5f958 JO |
63 | static int setup_compute_opt_wdiff(char *opt) |
64 | { | |
65 | char *w1_str = opt; | |
66 | char *w2_str; | |
67 | ||
68 | int ret = -EINVAL; | |
69 | ||
70 | if (!opt) | |
71 | goto out; | |
72 | ||
73 | w2_str = strchr(opt, ','); | |
74 | if (!w2_str) | |
75 | goto out; | |
76 | ||
77 | *w2_str++ = 0x0; | |
78 | if (!*w2_str) | |
79 | goto out; | |
80 | ||
81 | compute_wdiff_w1 = strtol(w1_str, NULL, 10); | |
82 | compute_wdiff_w2 = strtol(w2_str, NULL, 10); | |
83 | ||
84 | if (!compute_wdiff_w1 || !compute_wdiff_w2) | |
85 | goto out; | |
86 | ||
87 | pr_debug("compute wdiff w1(%" PRId64 ") w2(%" PRId64 ")\n", | |
88 | compute_wdiff_w1, compute_wdiff_w2); | |
89 | ||
90 | ret = 0; | |
91 | ||
92 | out: | |
93 | if (ret) | |
94 | pr_err("Failed: wrong weight data, use 'wdiff:w1,w2'\n"); | |
95 | ||
96 | return ret; | |
97 | } | |
98 | ||
99 | static int setup_compute_opt(char *opt) | |
100 | { | |
101 | if (compute == COMPUTE_WEIGHTED_DIFF) | |
102 | return setup_compute_opt_wdiff(opt); | |
103 | ||
104 | if (opt) { | |
105 | pr_err("Failed: extra option specified '%s'", opt); | |
106 | return -EINVAL; | |
107 | } | |
108 | ||
109 | return 0; | |
110 | } | |
111 | ||
7aaf6b35 JO |
112 | static int setup_compute(const struct option *opt, const char *str, |
113 | int unset __maybe_unused) | |
114 | { | |
115 | int *cp = (int *) opt->value; | |
81d5f958 JO |
116 | char *cstr = (char *) str; |
117 | char buf[50]; | |
7aaf6b35 | 118 | unsigned i; |
81d5f958 | 119 | char *option; |
7aaf6b35 JO |
120 | |
121 | if (!str) { | |
122 | *cp = COMPUTE_DELTA; | |
123 | return 0; | |
124 | } | |
125 | ||
96c47f19 JO |
126 | if (*str == '+') { |
127 | sort_compute = true; | |
81d5f958 | 128 | cstr = (char *) ++str; |
96c47f19 JO |
129 | if (!*str) |
130 | return 0; | |
131 | } | |
132 | ||
81d5f958 JO |
133 | option = strchr(str, ':'); |
134 | if (option) { | |
135 | unsigned len = option++ - str; | |
136 | ||
137 | /* | |
138 | * The str data are not writeable, so we need | |
139 | * to use another buffer. | |
140 | */ | |
141 | ||
142 | /* No option value is longer. */ | |
143 | if (len >= sizeof(buf)) | |
144 | return -EINVAL; | |
145 | ||
146 | strncpy(buf, str, len); | |
147 | buf[len] = 0x0; | |
148 | cstr = buf; | |
149 | } | |
150 | ||
7aaf6b35 | 151 | for (i = 0; i < COMPUTE_MAX; i++) |
81d5f958 | 152 | if (!strcmp(cstr, compute_names[i])) { |
7aaf6b35 | 153 | *cp = i; |
81d5f958 | 154 | return setup_compute_opt(option); |
7aaf6b35 JO |
155 | } |
156 | ||
157 | pr_err("Failed: '%s' is not computation method " | |
81d5f958 | 158 | "(use 'delta','ratio' or 'wdiff')\n", str); |
7aaf6b35 JO |
159 | return -EINVAL; |
160 | } | |
161 | ||
05472daa | 162 | double perf_diff__period_percent(struct hist_entry *he, u64 period) |
96c47f19 JO |
163 | { |
164 | u64 total = he->hists->stats.total_period; | |
165 | return (period * 100.0) / total; | |
166 | } | |
167 | ||
05472daa | 168 | double perf_diff__compute_delta(struct hist_entry *he, struct hist_entry *pair) |
96c47f19 | 169 | { |
9af303e2 JO |
170 | double old_percent = perf_diff__period_percent(he, he->stat.period); |
171 | double new_percent = perf_diff__period_percent(pair, pair->stat.period); | |
96c47f19 | 172 | |
9af303e2 JO |
173 | pair->diff.period_ratio_delta = new_percent - old_percent; |
174 | pair->diff.computed = true; | |
175 | return pair->diff.period_ratio_delta; | |
96c47f19 JO |
176 | } |
177 | ||
05472daa | 178 | double perf_diff__compute_ratio(struct hist_entry *he, struct hist_entry *pair) |
96c47f19 | 179 | { |
9af303e2 JO |
180 | double old_period = he->stat.period ?: 1; |
181 | double new_period = pair->stat.period; | |
96c47f19 | 182 | |
9af303e2 JO |
183 | pair->diff.computed = true; |
184 | pair->diff.period_ratio = new_period / old_period; | |
185 | return pair->diff.period_ratio; | |
96c47f19 JO |
186 | } |
187 | ||
05472daa | 188 | s64 perf_diff__compute_wdiff(struct hist_entry *he, struct hist_entry *pair) |
81d5f958 | 189 | { |
9af303e2 JO |
190 | u64 old_period = he->stat.period; |
191 | u64 new_period = pair->stat.period; | |
81d5f958 | 192 | |
9af303e2 JO |
193 | pair->diff.computed = true; |
194 | pair->diff.wdiff = new_period * compute_wdiff_w2 - | |
195 | old_period * compute_wdiff_w1; | |
81d5f958 | 196 | |
9af303e2 | 197 | return pair->diff.wdiff; |
81d5f958 JO |
198 | } |
199 | ||
f4c8bae1 JO |
200 | static int formula_delta(struct hist_entry *he, struct hist_entry *pair, |
201 | char *buf, size_t size) | |
ed279da2 | 202 | { |
ed279da2 JO |
203 | return scnprintf(buf, size, |
204 | "(%" PRIu64 " * 100 / %" PRIu64 ") - " | |
205 | "(%" PRIu64 " * 100 / %" PRIu64 ")", | |
9af303e2 JO |
206 | pair->stat.period, pair->hists->stats.total_period, |
207 | he->stat.period, he->hists->stats.total_period); | |
ed279da2 JO |
208 | } |
209 | ||
f4c8bae1 JO |
210 | static int formula_ratio(struct hist_entry *he, struct hist_entry *pair, |
211 | char *buf, size_t size) | |
ed279da2 | 212 | { |
9af303e2 JO |
213 | double old_period = he->stat.period; |
214 | double new_period = pair->stat.period; | |
ed279da2 JO |
215 | |
216 | return scnprintf(buf, size, "%.0F / %.0F", new_period, old_period); | |
217 | } | |
218 | ||
f4c8bae1 JO |
219 | static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair, |
220 | char *buf, size_t size) | |
ed279da2 | 221 | { |
9af303e2 JO |
222 | u64 old_period = he->stat.period; |
223 | u64 new_period = pair->stat.period; | |
ed279da2 JO |
224 | |
225 | return scnprintf(buf, size, | |
226 | "(%" PRIu64 " * " "%" PRId64 ") - (%" PRIu64 " * " "%" PRId64 ")", | |
227 | new_period, compute_wdiff_w2, old_period, compute_wdiff_w1); | |
228 | } | |
229 | ||
f4c8bae1 JO |
230 | int perf_diff__formula(struct hist_entry *he, struct hist_entry *pair, |
231 | char *buf, size_t size) | |
ed279da2 JO |
232 | { |
233 | switch (compute) { | |
234 | case COMPUTE_DELTA: | |
f4c8bae1 | 235 | return formula_delta(he, pair, buf, size); |
ed279da2 | 236 | case COMPUTE_RATIO: |
f4c8bae1 | 237 | return formula_ratio(he, pair, buf, size); |
ed279da2 | 238 | case COMPUTE_WEIGHTED_DIFF: |
f4c8bae1 | 239 | return formula_wdiff(he, pair, buf, size); |
ed279da2 JO |
240 | default: |
241 | BUG_ON(1); | |
242 | } | |
243 | ||
244 | return -1; | |
245 | } | |
246 | ||
1c02c4d2 | 247 | static int hists__add_entry(struct hists *self, |
05484298 AK |
248 | struct addr_location *al, u64 period, |
249 | u64 weight) | |
86a9eee0 | 250 | { |
05484298 | 251 | if (__hists__add_entry(self, al, NULL, period, weight) != NULL) |
28e2a106 ACM |
252 | return 0; |
253 | return -ENOMEM; | |
86a9eee0 ACM |
254 | } |
255 | ||
1d037ca1 | 256 | static int diff__process_sample_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 257 | union perf_event *event, |
8d50e5b4 | 258 | struct perf_sample *sample, |
863e451f | 259 | struct perf_evsel *evsel, |
743eb868 | 260 | struct machine *machine) |
86a9eee0 ACM |
261 | { |
262 | struct addr_location al; | |
86a9eee0 | 263 | |
743eb868 | 264 | if (perf_event__preprocess_sample(event, machine, &al, sample, NULL) < 0) { |
86a9eee0 ACM |
265 | pr_warning("problem processing %d event, skipping it.\n", |
266 | event->header.type); | |
267 | return -1; | |
268 | } | |
269 | ||
d88c48f9 | 270 | if (al.filtered) |
c410a338 ACM |
271 | return 0; |
272 | ||
05484298 | 273 | if (hists__add_entry(&evsel->hists, &al, sample->period, sample->weight)) { |
c82ee828 | 274 | pr_warning("problem incrementing symbol period, skipping event\n"); |
86a9eee0 ACM |
275 | return -1; |
276 | } | |
277 | ||
863e451f | 278 | evsel->hists.stats.total_period += sample->period; |
86a9eee0 ACM |
279 | return 0; |
280 | } | |
281 | ||
863e451f JO |
282 | static struct perf_tool tool = { |
283 | .sample = diff__process_sample_event, | |
284 | .mmap = perf_event__process_mmap, | |
285 | .comm = perf_event__process_comm, | |
f62d3f0f ACM |
286 | .exit = perf_event__process_exit, |
287 | .fork = perf_event__process_fork, | |
863e451f JO |
288 | .lost = perf_event__process_lost, |
289 | .ordered_samples = true, | |
290 | .ordering_requires_timestamps = true, | |
86a9eee0 ACM |
291 | }; |
292 | ||
863e451f JO |
293 | static struct perf_evsel *evsel_match(struct perf_evsel *evsel, |
294 | struct perf_evlist *evlist) | |
295 | { | |
296 | struct perf_evsel *e; | |
297 | ||
298 | list_for_each_entry(e, &evlist->entries, node) | |
299 | if (perf_evsel__match2(evsel, e)) | |
300 | return e; | |
301 | ||
302 | return NULL; | |
303 | } | |
304 | ||
ce74f60e | 305 | static void perf_evlist__collapse_resort(struct perf_evlist *evlist) |
dd464345 JO |
306 | { |
307 | struct perf_evsel *evsel; | |
308 | ||
309 | list_for_each_entry(evsel, &evlist->entries, node) { | |
310 | struct hists *hists = &evsel->hists; | |
311 | ||
ce74f60e | 312 | hists__collapse_resort(hists); |
dd464345 JO |
313 | } |
314 | } | |
315 | ||
a06d143e JO |
316 | static void hists__baseline_only(struct hists *hists) |
317 | { | |
ce74f60e NK |
318 | struct rb_root *root; |
319 | struct rb_node *next; | |
320 | ||
321 | if (sort__need_collapse) | |
322 | root = &hists->entries_collapsed; | |
323 | else | |
324 | root = hists->entries_in; | |
a06d143e | 325 | |
ce74f60e | 326 | next = rb_first(root); |
a06d143e | 327 | while (next != NULL) { |
ce74f60e | 328 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in); |
a06d143e | 329 | |
ce74f60e | 330 | next = rb_next(&he->rb_node_in); |
b821c732 | 331 | if (!hist_entry__next_pair(he)) { |
ce74f60e | 332 | rb_erase(&he->rb_node_in, root); |
a06d143e JO |
333 | hist_entry__free(he); |
334 | } | |
335 | } | |
336 | } | |
337 | ||
96c47f19 JO |
338 | static void hists__precompute(struct hists *hists) |
339 | { | |
367c53c0 JO |
340 | struct rb_root *root; |
341 | struct rb_node *next; | |
342 | ||
343 | if (sort__need_collapse) | |
344 | root = &hists->entries_collapsed; | |
345 | else | |
346 | root = hists->entries_in; | |
96c47f19 | 347 | |
367c53c0 | 348 | next = rb_first(root); |
96c47f19 | 349 | while (next != NULL) { |
367c53c0 | 350 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in); |
05472daa | 351 | struct hist_entry *pair = hist_entry__next_pair(he); |
96c47f19 | 352 | |
367c53c0 | 353 | next = rb_next(&he->rb_node_in); |
05472daa JO |
354 | if (!pair) |
355 | continue; | |
96c47f19 JO |
356 | |
357 | switch (compute) { | |
358 | case COMPUTE_DELTA: | |
05472daa | 359 | perf_diff__compute_delta(he, pair); |
96c47f19 JO |
360 | break; |
361 | case COMPUTE_RATIO: | |
05472daa | 362 | perf_diff__compute_ratio(he, pair); |
96c47f19 | 363 | break; |
81d5f958 | 364 | case COMPUTE_WEIGHTED_DIFF: |
05472daa | 365 | perf_diff__compute_wdiff(he, pair); |
81d5f958 | 366 | break; |
96c47f19 JO |
367 | default: |
368 | BUG_ON(1); | |
369 | } | |
370 | } | |
371 | } | |
372 | ||
373 | static int64_t cmp_doubles(double l, double r) | |
374 | { | |
375 | if (l > r) | |
376 | return -1; | |
377 | else if (l < r) | |
378 | return 1; | |
379 | else | |
380 | return 0; | |
381 | } | |
382 | ||
383 | static int64_t | |
384 | hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, | |
385 | int c) | |
386 | { | |
387 | switch (c) { | |
388 | case COMPUTE_DELTA: | |
389 | { | |
390 | double l = left->diff.period_ratio_delta; | |
391 | double r = right->diff.period_ratio_delta; | |
392 | ||
393 | return cmp_doubles(l, r); | |
394 | } | |
395 | case COMPUTE_RATIO: | |
396 | { | |
397 | double l = left->diff.period_ratio; | |
398 | double r = right->diff.period_ratio; | |
399 | ||
400 | return cmp_doubles(l, r); | |
401 | } | |
81d5f958 JO |
402 | case COMPUTE_WEIGHTED_DIFF: |
403 | { | |
404 | s64 l = left->diff.wdiff; | |
405 | s64 r = right->diff.wdiff; | |
406 | ||
407 | return r - l; | |
408 | } | |
96c47f19 JO |
409 | default: |
410 | BUG_ON(1); | |
411 | } | |
412 | ||
413 | return 0; | |
414 | } | |
415 | ||
416 | static void insert_hist_entry_by_compute(struct rb_root *root, | |
417 | struct hist_entry *he, | |
418 | int c) | |
419 | { | |
420 | struct rb_node **p = &root->rb_node; | |
421 | struct rb_node *parent = NULL; | |
422 | struct hist_entry *iter; | |
423 | ||
424 | while (*p != NULL) { | |
425 | parent = *p; | |
426 | iter = rb_entry(parent, struct hist_entry, rb_node); | |
427 | if (hist_entry__cmp_compute(he, iter, c) < 0) | |
428 | p = &(*p)->rb_left; | |
429 | else | |
430 | p = &(*p)->rb_right; | |
431 | } | |
432 | ||
433 | rb_link_node(&he->rb_node, parent, p); | |
434 | rb_insert_color(&he->rb_node, root); | |
435 | } | |
436 | ||
437 | static void hists__compute_resort(struct hists *hists) | |
438 | { | |
66f97ed3 NK |
439 | struct rb_root *root; |
440 | struct rb_node *next; | |
441 | ||
442 | if (sort__need_collapse) | |
443 | root = &hists->entries_collapsed; | |
444 | else | |
445 | root = hists->entries_in; | |
446 | ||
447 | hists->entries = RB_ROOT; | |
448 | next = rb_first(root); | |
449 | ||
450 | hists->nr_entries = 0; | |
451 | hists->stats.total_period = 0; | |
452 | hists__reset_col_len(hists); | |
96c47f19 JO |
453 | |
454 | while (next != NULL) { | |
66f97ed3 | 455 | struct hist_entry *he; |
96c47f19 | 456 | |
66f97ed3 NK |
457 | he = rb_entry(next, struct hist_entry, rb_node_in); |
458 | next = rb_next(&he->rb_node_in); | |
96c47f19 | 459 | |
66f97ed3 NK |
460 | insert_hist_entry_by_compute(&hists->entries, he, compute); |
461 | hists__inc_nr_entries(hists, he); | |
96c47f19 | 462 | } |
96c47f19 JO |
463 | } |
464 | ||
9af303e2 | 465 | static void hists__process(struct hists *base, struct hists *new) |
a06d143e | 466 | { |
9af303e2 | 467 | hists__match(base, new); |
a06d143e JO |
468 | |
469 | if (show_baseline_only) | |
9af303e2 | 470 | hists__baseline_only(base); |
bfaef4b4 | 471 | else |
9af303e2 | 472 | hists__link(base, new); |
a06d143e | 473 | |
96c47f19 | 474 | if (sort_compute) { |
9af303e2 JO |
475 | hists__precompute(base); |
476 | hists__compute_resort(base); | |
66f97ed3 | 477 | } else { |
9af303e2 | 478 | hists__output_resort(base); |
96c47f19 JO |
479 | } |
480 | ||
9af303e2 | 481 | hists__fprintf(base, true, 0, 0, 0, stdout); |
a06d143e JO |
482 | } |
483 | ||
ec308426 | 484 | static void data_process(void) |
86a9eee0 | 485 | { |
ec308426 JO |
486 | struct perf_evlist *evlist_old = data__files[0].session->evlist; |
487 | struct perf_evlist *evlist_new = data__files[1].session->evlist; | |
488 | struct perf_evsel *evsel_old; | |
863e451f | 489 | bool first = true; |
86a9eee0 | 490 | |
ec308426 JO |
491 | list_for_each_entry(evsel_old, &evlist_old->entries, node) { |
492 | struct perf_evsel *evsel_new; | |
86a9eee0 | 493 | |
ec308426 JO |
494 | evsel_new = evsel_match(evsel_old, evlist_new); |
495 | if (!evsel_new) | |
496 | continue; | |
86a9eee0 | 497 | |
ec308426 JO |
498 | fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", |
499 | perf_evsel__name(evsel_old)); | |
863e451f | 500 | |
ec308426 | 501 | first = false; |
863e451f | 502 | |
ec308426 JO |
503 | hists__process(&evsel_old->hists, &evsel_new->hists); |
504 | } | |
505 | } | |
863e451f | 506 | |
ec308426 JO |
507 | static int __cmd_diff(void) |
508 | { | |
509 | struct data__file *d; | |
510 | int ret = -EINVAL, i; | |
511 | ||
512 | data__for_each_file(i, d) { | |
513 | d->session = perf_session__new(d->file, O_RDONLY, force, | |
514 | false, &tool); | |
515 | if (!d->session) { | |
516 | pr_err("Failed to open %s\n", d->file); | |
517 | ret = -ENOMEM; | |
518 | goto out_delete; | |
519 | } | |
863e451f | 520 | |
ec308426 JO |
521 | ret = perf_session__process_events(d->session, &tool); |
522 | if (ret) { | |
523 | pr_err("Failed to process %s\n", d->file); | |
524 | goto out_delete; | |
525 | } | |
863e451f | 526 | |
ec308426 JO |
527 | perf_evlist__collapse_resort(d->session->evlist); |
528 | } | |
529 | ||
530 | data_process(); | |
863e451f | 531 | |
ec308426 JO |
532 | out_delete: |
533 | data__for_each_file(i, d) { | |
534 | if (d->session) | |
535 | perf_session__delete(d->session); | |
863e451f | 536 | } |
9c443dfd | 537 | |
ec308426 | 538 | free(data__files); |
86a9eee0 ACM |
539 | return ret; |
540 | } | |
541 | ||
0422a4fc | 542 | static const char * const diff_usage[] = { |
86a9eee0 | 543 | "perf diff [<options>] [old_file] [new_file]", |
0422a4fc | 544 | NULL, |
86a9eee0 ACM |
545 | }; |
546 | ||
547 | static const struct option options[] = { | |
c0555642 | 548 | OPT_INCR('v', "verbose", &verbose, |
86a9eee0 | 549 | "be more verbose (show symbol address, etc)"), |
a06d143e JO |
550 | OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, |
551 | "Show only items with match in baseline"), | |
81d5f958 JO |
552 | OPT_CALLBACK('c', "compute", &compute, |
553 | "delta,ratio,wdiff:w1,w2 (default delta)", | |
7aaf6b35 JO |
554 | "Entries differential computation selection", |
555 | setup_compute), | |
61949b21 JO |
556 | OPT_BOOLEAN('p', "period", &show_period, |
557 | "Show period values."), | |
ed279da2 JO |
558 | OPT_BOOLEAN('F', "formula", &show_formula, |
559 | "Show formula."), | |
86a9eee0 ACM |
560 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
561 | "dump raw trace in ASCII"), | |
562 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
563 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, | |
564 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
c410a338 ACM |
565 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
566 | "only consider symbols in these dsos"), | |
567 | OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
568 | "only consider symbols in these comms"), | |
569 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
570 | "only consider these symbols"), | |
c351c281 ACM |
571 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
572 | "sort by key(s): pid, comm, dso, symbol, parent"), | |
573 | OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator", | |
574 | "separator for columns, no spaces will be added between " | |
575 | "columns '.' is reserved."), | |
ec5761ea DA |
576 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
577 | "Look for files with symbols relative to this directory"), | |
86a9eee0 ACM |
578 | OPT_END() |
579 | }; | |
580 | ||
1d77822e JO |
581 | static void ui_init(void) |
582 | { | |
ed279da2 | 583 | /* |
db6d0bb8 | 584 | * Display baseline/delta/ratio |
ed279da2 JO |
585 | * formula/periods columns. |
586 | */ | |
1240005e | 587 | perf_hpp__column_enable(PERF_HPP__BASELINE); |
7aaf6b35 JO |
588 | |
589 | switch (compute) { | |
590 | case COMPUTE_DELTA: | |
1240005e | 591 | perf_hpp__column_enable(PERF_HPP__DELTA); |
7aaf6b35 JO |
592 | break; |
593 | case COMPUTE_RATIO: | |
1240005e | 594 | perf_hpp__column_enable(PERF_HPP__RATIO); |
81d5f958 JO |
595 | break; |
596 | case COMPUTE_WEIGHTED_DIFF: | |
1240005e | 597 | perf_hpp__column_enable(PERF_HPP__WEIGHTED_DIFF); |
7aaf6b35 JO |
598 | break; |
599 | default: | |
600 | BUG_ON(1); | |
601 | }; | |
1d77822e | 602 | |
ed279da2 | 603 | if (show_formula) |
1240005e | 604 | perf_hpp__column_enable(PERF_HPP__FORMULA); |
ed279da2 | 605 | |
61949b21 | 606 | if (show_period) { |
1240005e JO |
607 | perf_hpp__column_enable(PERF_HPP__PERIOD); |
608 | perf_hpp__column_enable(PERF_HPP__PERIOD_BASELINE); | |
61949b21 | 609 | } |
1d77822e JO |
610 | } |
611 | ||
ec308426 | 612 | static int data_init(int argc, const char **argv) |
86a9eee0 | 613 | { |
ec308426 JO |
614 | struct data__file *d; |
615 | static const char *defaults[] = { | |
616 | "perf.data.old", | |
617 | "perf.data", | |
618 | }; | |
619 | int i; | |
620 | ||
621 | data__files_cnt = 2; | |
622 | ||
86a9eee0 ACM |
623 | if (argc) { |
624 | if (argc > 2) | |
625 | usage_with_options(diff_usage, options); | |
626 | if (argc == 2) { | |
ec308426 JO |
627 | defaults[0] = argv[0]; |
628 | defaults[1] = argv[1]; | |
86a9eee0 | 629 | } else |
ec308426 | 630 | defaults[1] = argv[0]; |
a1645ce1 ZY |
631 | } else if (symbol_conf.default_guest_vmlinux_name || |
632 | symbol_conf.default_guest_kallsyms) { | |
ec308426 JO |
633 | defaults[0] = "perf.data.host"; |
634 | defaults[1] = "perf.data.guest"; | |
86a9eee0 ACM |
635 | } |
636 | ||
ec308426 JO |
637 | data__files = zalloc(sizeof(*data__files) * data__files_cnt); |
638 | if (!data__files) | |
639 | return -ENOMEM; | |
640 | ||
641 | data__for_each_file(i, d) { | |
642 | d->file = defaults[i]; | |
643 | d->idx = i; | |
644 | } | |
645 | ||
646 | return 0; | |
647 | } | |
648 | ||
649 | int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused) | |
650 | { | |
651 | sort_order = diff__default_sort_order; | |
652 | argc = parse_options(argc, argv, options, diff_usage, 0); | |
653 | ||
655000e7 ACM |
654 | if (symbol__init() < 0) |
655 | return -1; | |
656 | ||
ec308426 JO |
657 | if (data_init(argc, argv) < 0) |
658 | return -1; | |
659 | ||
1d77822e JO |
660 | ui_init(); |
661 | ||
55309985 NK |
662 | if (setup_sorting() < 0) |
663 | usage_with_options(diff_usage, options); | |
664 | ||
86a9eee0 | 665 | setup_pager(); |
c351c281 | 666 | |
08e71542 | 667 | sort__setup_elide(NULL); |
c351c281 | 668 | |
86a9eee0 ACM |
669 | return __cmd_diff(); |
670 | } |