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; | |
4ea062ed | 330 | struct hists *hists = evsel__hists(evsel); |
86a9eee0 | 331 | |
e44baa3e | 332 | if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { |
86a9eee0 ACM |
333 | pr_warning("problem processing %d event, skipping it.\n", |
334 | event->header.type); | |
335 | return -1; | |
336 | } | |
337 | ||
4ea062ed | 338 | if (hists__add_entry(hists, &al, sample->period, |
475eeab9 | 339 | sample->weight, sample->transaction)) { |
c82ee828 | 340 | pr_warning("problem incrementing symbol period, skipping event\n"); |
86a9eee0 ACM |
341 | return -1; |
342 | } | |
343 | ||
820bc81f NK |
344 | /* |
345 | * The total_period is updated here before going to the output | |
346 | * tree since normally only the baseline hists will call | |
347 | * hists__output_resort() and precompute needs the total | |
348 | * period in order to sort entries by percentage delta. | |
349 | */ | |
4ea062ed | 350 | hists->stats.total_period += sample->period; |
820bc81f | 351 | if (!al.filtered) |
4ea062ed | 352 | hists->stats.total_non_filtered_period += sample->period; |
820bc81f | 353 | |
86a9eee0 ACM |
354 | return 0; |
355 | } | |
356 | ||
863e451f JO |
357 | static struct perf_tool tool = { |
358 | .sample = diff__process_sample_event, | |
359 | .mmap = perf_event__process_mmap, | |
68ca9d65 | 360 | .mmap2 = perf_event__process_mmap2, |
863e451f | 361 | .comm = perf_event__process_comm, |
f62d3f0f ACM |
362 | .exit = perf_event__process_exit, |
363 | .fork = perf_event__process_fork, | |
863e451f | 364 | .lost = perf_event__process_lost, |
0a8cb85c | 365 | .ordered_events = true, |
863e451f | 366 | .ordering_requires_timestamps = true, |
86a9eee0 ACM |
367 | }; |
368 | ||
863e451f JO |
369 | static struct perf_evsel *evsel_match(struct perf_evsel *evsel, |
370 | struct perf_evlist *evlist) | |
371 | { | |
372 | struct perf_evsel *e; | |
373 | ||
0050f7aa | 374 | evlist__for_each(evlist, e) { |
863e451f JO |
375 | if (perf_evsel__match2(evsel, e)) |
376 | return e; | |
0050f7aa | 377 | } |
863e451f JO |
378 | |
379 | return NULL; | |
380 | } | |
381 | ||
ce74f60e | 382 | static void perf_evlist__collapse_resort(struct perf_evlist *evlist) |
dd464345 JO |
383 | { |
384 | struct perf_evsel *evsel; | |
385 | ||
0050f7aa | 386 | evlist__for_each(evlist, evsel) { |
4ea062ed | 387 | struct hists *hists = evsel__hists(evsel); |
dd464345 | 388 | |
c1fb5651 | 389 | hists__collapse_resort(hists, NULL); |
dd464345 JO |
390 | } |
391 | } | |
392 | ||
5f3f8d3b JO |
393 | static struct hist_entry* |
394 | get_pair_data(struct hist_entry *he, struct data__file *d) | |
395 | { | |
396 | if (hist_entry__has_pairs(he)) { | |
397 | struct hist_entry *pair; | |
398 | ||
399 | list_for_each_entry(pair, &he->pairs.head, pairs.node) | |
400 | if (pair->hists == d->hists) | |
401 | return pair; | |
402 | } | |
403 | ||
404 | return NULL; | |
405 | } | |
406 | ||
407 | static struct hist_entry* | |
408 | get_pair_fmt(struct hist_entry *he, struct diff_hpp_fmt *dfmt) | |
409 | { | |
410 | void *ptr = dfmt - dfmt->idx; | |
411 | struct data__file *d = container_of(ptr, struct data__file, fmt); | |
412 | ||
413 | return get_pair_data(he, d); | |
414 | } | |
415 | ||
a06d143e JO |
416 | static void hists__baseline_only(struct hists *hists) |
417 | { | |
ce74f60e NK |
418 | struct rb_root *root; |
419 | struct rb_node *next; | |
420 | ||
421 | if (sort__need_collapse) | |
422 | root = &hists->entries_collapsed; | |
423 | else | |
424 | root = hists->entries_in; | |
a06d143e | 425 | |
ce74f60e | 426 | next = rb_first(root); |
a06d143e | 427 | while (next != NULL) { |
ce74f60e | 428 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in); |
a06d143e | 429 | |
ce74f60e | 430 | next = rb_next(&he->rb_node_in); |
b821c732 | 431 | if (!hist_entry__next_pair(he)) { |
ce74f60e | 432 | rb_erase(&he->rb_node_in, root); |
a06d143e JO |
433 | hist_entry__free(he); |
434 | } | |
435 | } | |
436 | } | |
437 | ||
96c47f19 JO |
438 | static void hists__precompute(struct hists *hists) |
439 | { | |
367c53c0 JO |
440 | struct rb_root *root; |
441 | struct rb_node *next; | |
442 | ||
443 | if (sort__need_collapse) | |
444 | root = &hists->entries_collapsed; | |
445 | else | |
446 | root = hists->entries_in; | |
96c47f19 | 447 | |
367c53c0 | 448 | next = rb_first(root); |
96c47f19 | 449 | while (next != NULL) { |
5f3f8d3b | 450 | struct hist_entry *he, *pair; |
96c47f19 | 451 | |
5f3f8d3b | 452 | he = rb_entry(next, struct hist_entry, rb_node_in); |
367c53c0 | 453 | next = rb_next(&he->rb_node_in); |
5f3f8d3b JO |
454 | |
455 | pair = get_pair_data(he, &data__files[sort_compute]); | |
05472daa JO |
456 | if (!pair) |
457 | continue; | |
96c47f19 JO |
458 | |
459 | switch (compute) { | |
460 | case COMPUTE_DELTA: | |
ef358e6d | 461 | compute_delta(he, pair); |
96c47f19 JO |
462 | break; |
463 | case COMPUTE_RATIO: | |
ef358e6d | 464 | compute_ratio(he, pair); |
96c47f19 | 465 | break; |
81d5f958 | 466 | case COMPUTE_WEIGHTED_DIFF: |
ef358e6d | 467 | compute_wdiff(he, pair); |
81d5f958 | 468 | break; |
96c47f19 JO |
469 | default: |
470 | BUG_ON(1); | |
471 | } | |
472 | } | |
473 | } | |
474 | ||
475 | static int64_t cmp_doubles(double l, double r) | |
476 | { | |
477 | if (l > r) | |
478 | return -1; | |
479 | else if (l < r) | |
480 | return 1; | |
481 | else | |
482 | return 0; | |
483 | } | |
484 | ||
485 | static int64_t | |
5f3f8d3b | 486 | __hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, |
96c47f19 JO |
487 | int c) |
488 | { | |
489 | switch (c) { | |
490 | case COMPUTE_DELTA: | |
491 | { | |
492 | double l = left->diff.period_ratio_delta; | |
493 | double r = right->diff.period_ratio_delta; | |
494 | ||
495 | return cmp_doubles(l, r); | |
496 | } | |
497 | case COMPUTE_RATIO: | |
498 | { | |
499 | double l = left->diff.period_ratio; | |
500 | double r = right->diff.period_ratio; | |
501 | ||
502 | return cmp_doubles(l, r); | |
503 | } | |
81d5f958 JO |
504 | case COMPUTE_WEIGHTED_DIFF: |
505 | { | |
506 | s64 l = left->diff.wdiff; | |
507 | s64 r = right->diff.wdiff; | |
508 | ||
509 | return r - l; | |
510 | } | |
96c47f19 JO |
511 | default: |
512 | BUG_ON(1); | |
513 | } | |
514 | ||
515 | return 0; | |
516 | } | |
517 | ||
5f3f8d3b JO |
518 | static int64_t |
519 | hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, | |
520 | int c) | |
521 | { | |
522 | bool pairs_left = hist_entry__has_pairs(left); | |
523 | bool pairs_right = hist_entry__has_pairs(right); | |
524 | struct hist_entry *p_right, *p_left; | |
525 | ||
526 | if (!pairs_left && !pairs_right) | |
527 | return 0; | |
528 | ||
529 | if (!pairs_left || !pairs_right) | |
530 | return pairs_left ? -1 : 1; | |
531 | ||
532 | p_left = get_pair_data(left, &data__files[sort_compute]); | |
533 | p_right = get_pair_data(right, &data__files[sort_compute]); | |
534 | ||
535 | if (!p_left && !p_right) | |
536 | return 0; | |
537 | ||
538 | if (!p_left || !p_right) | |
539 | return p_left ? -1 : 1; | |
540 | ||
541 | /* | |
542 | * We have 2 entries of same kind, let's | |
543 | * make the data comparison. | |
544 | */ | |
545 | return __hist_entry__cmp_compute(p_left, p_right, c); | |
546 | } | |
547 | ||
96c47f19 JO |
548 | static void insert_hist_entry_by_compute(struct rb_root *root, |
549 | struct hist_entry *he, | |
550 | int c) | |
551 | { | |
552 | struct rb_node **p = &root->rb_node; | |
553 | struct rb_node *parent = NULL; | |
554 | struct hist_entry *iter; | |
555 | ||
556 | while (*p != NULL) { | |
557 | parent = *p; | |
558 | iter = rb_entry(parent, struct hist_entry, rb_node); | |
559 | if (hist_entry__cmp_compute(he, iter, c) < 0) | |
560 | p = &(*p)->rb_left; | |
561 | else | |
562 | p = &(*p)->rb_right; | |
563 | } | |
564 | ||
565 | rb_link_node(&he->rb_node, parent, p); | |
566 | rb_insert_color(&he->rb_node, root); | |
567 | } | |
568 | ||
569 | static void hists__compute_resort(struct hists *hists) | |
570 | { | |
66f97ed3 NK |
571 | struct rb_root *root; |
572 | struct rb_node *next; | |
573 | ||
574 | if (sort__need_collapse) | |
575 | root = &hists->entries_collapsed; | |
576 | else | |
577 | root = hists->entries_in; | |
578 | ||
579 | hists->entries = RB_ROOT; | |
580 | next = rb_first(root); | |
581 | ||
9283ba9b | 582 | hists__reset_stats(hists); |
66f97ed3 | 583 | hists__reset_col_len(hists); |
96c47f19 JO |
584 | |
585 | while (next != NULL) { | |
66f97ed3 | 586 | struct hist_entry *he; |
96c47f19 | 587 | |
66f97ed3 NK |
588 | he = rb_entry(next, struct hist_entry, rb_node_in); |
589 | next = rb_next(&he->rb_node_in); | |
96c47f19 | 590 | |
66f97ed3 | 591 | insert_hist_entry_by_compute(&hists->entries, he, compute); |
6263835a | 592 | hists__inc_stats(hists, he); |
ae993efc NK |
593 | |
594 | if (!he->filtered) | |
595 | hists__calc_col_len(hists, he); | |
96c47f19 | 596 | } |
96c47f19 JO |
597 | } |
598 | ||
22aeb7f5 | 599 | static void hists__process(struct hists *hists) |
a06d143e | 600 | { |
a06d143e | 601 | if (show_baseline_only) |
22aeb7f5 | 602 | hists__baseline_only(hists); |
a06d143e | 603 | |
96c47f19 | 604 | if (sort_compute) { |
22aeb7f5 JO |
605 | hists__precompute(hists); |
606 | hists__compute_resort(hists); | |
66f97ed3 | 607 | } else { |
22aeb7f5 | 608 | hists__output_resort(hists); |
96c47f19 JO |
609 | } |
610 | ||
22aeb7f5 | 611 | hists__fprintf(hists, true, 0, 0, 0, stdout); |
a06d143e JO |
612 | } |
613 | ||
1d81c7fc JO |
614 | static void data__fprintf(void) |
615 | { | |
616 | struct data__file *d; | |
617 | int i; | |
618 | ||
619 | fprintf(stdout, "# Data files:\n"); | |
620 | ||
621 | data__for_each_file(i, d) | |
622 | fprintf(stdout, "# [%d] %s %s\n", | |
f5fc1412 | 623 | d->idx, d->file.path, |
1d81c7fc JO |
624 | !d->idx ? "(Baseline)" : ""); |
625 | ||
626 | fprintf(stdout, "#\n"); | |
627 | } | |
628 | ||
ec308426 | 629 | static void data_process(void) |
86a9eee0 | 630 | { |
22aeb7f5 JO |
631 | struct perf_evlist *evlist_base = data__files[0].session->evlist; |
632 | struct perf_evsel *evsel_base; | |
863e451f | 633 | bool first = true; |
86a9eee0 | 634 | |
0050f7aa | 635 | evlist__for_each(evlist_base, evsel_base) { |
4ea062ed | 636 | struct hists *hists_base = evsel__hists(evsel_base); |
22aeb7f5 JO |
637 | struct data__file *d; |
638 | int i; | |
86a9eee0 | 639 | |
22aeb7f5 JO |
640 | data__for_each_file_new(i, d) { |
641 | struct perf_evlist *evlist = d->session->evlist; | |
642 | struct perf_evsel *evsel; | |
4ea062ed | 643 | struct hists *hists; |
22aeb7f5 JO |
644 | |
645 | evsel = evsel_match(evsel_base, evlist); | |
646 | if (!evsel) | |
647 | continue; | |
648 | ||
4ea062ed ACM |
649 | hists = evsel__hists(evsel); |
650 | d->hists = hists; | |
22aeb7f5 | 651 | |
4ea062ed | 652 | hists__match(hists_base, hists); |
22aeb7f5 JO |
653 | |
654 | if (!show_baseline_only) | |
4ea062ed | 655 | hists__link(hists_base, hists); |
22aeb7f5 | 656 | } |
86a9eee0 | 657 | |
ec308426 | 658 | fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", |
22aeb7f5 | 659 | perf_evsel__name(evsel_base)); |
863e451f | 660 | |
ec308426 | 661 | first = false; |
863e451f | 662 | |
22aeb7f5 | 663 | if (verbose || data__files_cnt > 2) |
1d81c7fc JO |
664 | data__fprintf(); |
665 | ||
4ea062ed | 666 | hists__process(hists_base); |
ec308426 JO |
667 | } |
668 | } | |
863e451f | 669 | |
c818b498 JO |
670 | static void data__free(struct data__file *d) |
671 | { | |
672 | int col; | |
673 | ||
674 | for (col = 0; col < PERF_HPP_DIFF__MAX_INDEX; col++) { | |
675 | struct diff_hpp_fmt *fmt = &d->fmt[col]; | |
676 | ||
74cf249d | 677 | zfree(&fmt->header); |
c818b498 JO |
678 | } |
679 | } | |
680 | ||
ec308426 JO |
681 | static int __cmd_diff(void) |
682 | { | |
683 | struct data__file *d; | |
684 | int ret = -EINVAL, i; | |
685 | ||
686 | data__for_each_file(i, d) { | |
f5fc1412 | 687 | d->session = perf_session__new(&d->file, false, &tool); |
ec308426 | 688 | if (!d->session) { |
f5fc1412 | 689 | pr_err("Failed to open %s\n", d->file.path); |
52e02834 | 690 | ret = -1; |
ec308426 JO |
691 | goto out_delete; |
692 | } | |
863e451f | 693 | |
ec308426 JO |
694 | ret = perf_session__process_events(d->session, &tool); |
695 | if (ret) { | |
f5fc1412 | 696 | pr_err("Failed to process %s\n", d->file.path); |
ec308426 JO |
697 | goto out_delete; |
698 | } | |
863e451f | 699 | |
ec308426 JO |
700 | perf_evlist__collapse_resort(d->session->evlist); |
701 | } | |
702 | ||
703 | data_process(); | |
863e451f | 704 | |
ec308426 JO |
705 | out_delete: |
706 | data__for_each_file(i, d) { | |
707 | if (d->session) | |
708 | perf_session__delete(d->session); | |
c818b498 JO |
709 | |
710 | data__free(d); | |
863e451f | 711 | } |
9c443dfd | 712 | |
ec308426 | 713 | free(data__files); |
86a9eee0 ACM |
714 | return ret; |
715 | } | |
716 | ||
0422a4fc | 717 | static const char * const diff_usage[] = { |
86a9eee0 | 718 | "perf diff [<options>] [old_file] [new_file]", |
0422a4fc | 719 | NULL, |
86a9eee0 ACM |
720 | }; |
721 | ||
722 | static const struct option options[] = { | |
c0555642 | 723 | OPT_INCR('v', "verbose", &verbose, |
86a9eee0 | 724 | "be more verbose (show symbol address, etc)"), |
a06d143e JO |
725 | OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, |
726 | "Show only items with match in baseline"), | |
81d5f958 JO |
727 | OPT_CALLBACK('c', "compute", &compute, |
728 | "delta,ratio,wdiff:w1,w2 (default delta)", | |
7aaf6b35 JO |
729 | "Entries differential computation selection", |
730 | setup_compute), | |
61949b21 JO |
731 | OPT_BOOLEAN('p', "period", &show_period, |
732 | "Show period values."), | |
ed279da2 JO |
733 | OPT_BOOLEAN('F', "formula", &show_formula, |
734 | "Show formula."), | |
86a9eee0 ACM |
735 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
736 | "dump raw trace in ASCII"), | |
737 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
738 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, | |
739 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
c410a338 ACM |
740 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
741 | "only consider symbols in these dsos"), | |
742 | OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
743 | "only consider symbols in these comms"), | |
744 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
745 | "only consider these symbols"), | |
c351c281 | 746 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
747 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
748 | " Please refer the man page for the complete list."), | |
c351c281 ACM |
749 | OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator", |
750 | "separator for columns, no spaces will be added between " | |
751 | "columns '.' is reserved."), | |
ec5761ea DA |
752 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
753 | "Look for files with symbols relative to this directory"), | |
5f3f8d3b | 754 | OPT_UINTEGER('o', "order", &sort_compute, "Specify compute sorting."), |
8810f6ce NK |
755 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
756 | "How to display percentage of filtered entries", parse_filter_percentage), | |
86a9eee0 ACM |
757 | OPT_END() |
758 | }; | |
759 | ||
345dc0b4 | 760 | static double baseline_percent(struct hist_entry *he) |
1d77822e | 761 | { |
8810f6ce NK |
762 | u64 total = hists__total_period(he->hists); |
763 | ||
764 | return 100.0 * he->stat.period / total; | |
345dc0b4 | 765 | } |
7aaf6b35 | 766 | |
345dc0b4 JO |
767 | static int hpp__color_baseline(struct perf_hpp_fmt *fmt, |
768 | struct perf_hpp *hpp, struct hist_entry *he) | |
769 | { | |
770 | struct diff_hpp_fmt *dfmt = | |
771 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
772 | double percent = baseline_percent(he); | |
773 | char pfmt[20] = " "; | |
774 | ||
775 | if (!he->dummy) { | |
776 | scnprintf(pfmt, 20, "%%%d.2f%%%%", dfmt->header_width - 1); | |
777 | return percent_color_snprintf(hpp->buf, hpp->size, | |
778 | pfmt, percent); | |
779 | } else | |
780 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
781 | dfmt->header_width, pfmt); | |
782 | } | |
783 | ||
784 | static int hpp__entry_baseline(struct hist_entry *he, char *buf, size_t size) | |
785 | { | |
786 | double percent = baseline_percent(he); | |
787 | const char *fmt = symbol_conf.field_sep ? "%.2f" : "%6.2f%%"; | |
788 | int ret = 0; | |
789 | ||
790 | if (!he->dummy) | |
791 | ret = scnprintf(buf, size, fmt, percent); | |
792 | ||
793 | return ret; | |
794 | } | |
795 | ||
01f10bc8 RR |
796 | static int __hpp__color_compare(struct perf_hpp_fmt *fmt, |
797 | struct perf_hpp *hpp, struct hist_entry *he, | |
798 | int comparison_method) | |
799 | { | |
800 | struct diff_hpp_fmt *dfmt = | |
801 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
802 | struct hist_entry *pair = get_pair_fmt(he, dfmt); | |
803 | double diff; | |
a5846e21 | 804 | s64 wdiff; |
01f10bc8 RR |
805 | char pfmt[20] = " "; |
806 | ||
807 | if (!pair) | |
808 | goto dummy_print; | |
809 | ||
810 | switch (comparison_method) { | |
811 | case COMPUTE_DELTA: | |
812 | if (pair->diff.computed) | |
813 | diff = pair->diff.period_ratio_delta; | |
814 | else | |
815 | diff = compute_delta(he, pair); | |
816 | ||
817 | if (fabs(diff) < 0.01) | |
818 | goto dummy_print; | |
819 | scnprintf(pfmt, 20, "%%%+d.2f%%%%", dfmt->header_width - 1); | |
820 | return percent_color_snprintf(hpp->buf, hpp->size, | |
821 | pfmt, diff); | |
1f513b2c RR |
822 | case COMPUTE_RATIO: |
823 | if (he->dummy) | |
824 | goto dummy_print; | |
825 | if (pair->diff.computed) | |
826 | diff = pair->diff.period_ratio; | |
827 | else | |
828 | diff = compute_ratio(he, pair); | |
829 | ||
830 | scnprintf(pfmt, 20, "%%%d.6f", dfmt->header_width); | |
831 | return value_color_snprintf(hpp->buf, hpp->size, | |
832 | pfmt, diff); | |
a5846e21 RR |
833 | case COMPUTE_WEIGHTED_DIFF: |
834 | if (he->dummy) | |
835 | goto dummy_print; | |
836 | if (pair->diff.computed) | |
837 | wdiff = pair->diff.wdiff; | |
838 | else | |
839 | wdiff = compute_wdiff(he, pair); | |
840 | ||
841 | scnprintf(pfmt, 20, "%%14ld", dfmt->header_width); | |
842 | return color_snprintf(hpp->buf, hpp->size, | |
843 | get_percent_color(wdiff), | |
844 | pfmt, wdiff); | |
01f10bc8 RR |
845 | default: |
846 | BUG_ON(1); | |
847 | } | |
848 | dummy_print: | |
849 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
850 | dfmt->header_width, pfmt); | |
851 | } | |
852 | ||
853 | static int hpp__color_delta(struct perf_hpp_fmt *fmt, | |
854 | struct perf_hpp *hpp, struct hist_entry *he) | |
855 | { | |
856 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_DELTA); | |
857 | } | |
858 | ||
1f513b2c RR |
859 | static int hpp__color_ratio(struct perf_hpp_fmt *fmt, |
860 | struct perf_hpp *hpp, struct hist_entry *he) | |
861 | { | |
862 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_RATIO); | |
863 | } | |
864 | ||
a5846e21 RR |
865 | static int hpp__color_wdiff(struct perf_hpp_fmt *fmt, |
866 | struct perf_hpp *hpp, struct hist_entry *he) | |
867 | { | |
868 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_WEIGHTED_DIFF); | |
869 | } | |
870 | ||
345dc0b4 JO |
871 | static void |
872 | hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size) | |
873 | { | |
874 | switch (idx) { | |
875 | case PERF_HPP_DIFF__PERIOD_BASELINE: | |
876 | scnprintf(buf, size, "%" PRIu64, he->stat.period); | |
7aaf6b35 | 877 | break; |
345dc0b4 JO |
878 | |
879 | default: | |
81d5f958 | 880 | break; |
345dc0b4 JO |
881 | } |
882 | } | |
883 | ||
884 | static void | |
885 | hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair, | |
886 | int idx, char *buf, size_t size) | |
887 | { | |
888 | double diff; | |
889 | double ratio; | |
890 | s64 wdiff; | |
891 | ||
892 | switch (idx) { | |
893 | case PERF_HPP_DIFF__DELTA: | |
894 | if (pair->diff.computed) | |
895 | diff = pair->diff.period_ratio_delta; | |
896 | else | |
ef358e6d | 897 | diff = compute_delta(he, pair); |
345dc0b4 JO |
898 | |
899 | if (fabs(diff) >= 0.01) | |
900 | scnprintf(buf, size, "%+4.2F%%", diff); | |
901 | break; | |
902 | ||
903 | case PERF_HPP_DIFF__RATIO: | |
904 | /* No point for ratio number if we are dummy.. */ | |
905 | if (he->dummy) | |
906 | break; | |
907 | ||
908 | if (pair->diff.computed) | |
909 | ratio = pair->diff.period_ratio; | |
910 | else | |
ef358e6d | 911 | ratio = compute_ratio(he, pair); |
345dc0b4 JO |
912 | |
913 | if (ratio > 0.0) | |
914 | scnprintf(buf, size, "%14.6F", ratio); | |
915 | break; | |
916 | ||
917 | case PERF_HPP_DIFF__WEIGHTED_DIFF: | |
918 | /* No point for wdiff number if we are dummy.. */ | |
919 | if (he->dummy) | |
920 | break; | |
921 | ||
922 | if (pair->diff.computed) | |
923 | wdiff = pair->diff.wdiff; | |
924 | else | |
ef358e6d | 925 | wdiff = compute_wdiff(he, pair); |
345dc0b4 JO |
926 | |
927 | if (wdiff != 0) | |
928 | scnprintf(buf, size, "%14ld", wdiff); | |
929 | break; | |
930 | ||
931 | case PERF_HPP_DIFF__FORMULA: | |
ef358e6d | 932 | formula_fprintf(he, pair, buf, size); |
7aaf6b35 | 933 | break; |
345dc0b4 JO |
934 | |
935 | case PERF_HPP_DIFF__PERIOD: | |
936 | scnprintf(buf, size, "%" PRIu64, pair->stat.period); | |
937 | break; | |
938 | ||
7aaf6b35 JO |
939 | default: |
940 | BUG_ON(1); | |
941 | }; | |
345dc0b4 JO |
942 | } |
943 | ||
944 | static void | |
22aeb7f5 JO |
945 | __hpp__entry_global(struct hist_entry *he, struct diff_hpp_fmt *dfmt, |
946 | char *buf, size_t size) | |
345dc0b4 | 947 | { |
5f3f8d3b | 948 | struct hist_entry *pair = get_pair_fmt(he, dfmt); |
22aeb7f5 | 949 | int idx = dfmt->idx; |
345dc0b4 JO |
950 | |
951 | /* baseline is special */ | |
952 | if (idx == PERF_HPP_DIFF__BASELINE) | |
953 | hpp__entry_baseline(he, buf, size); | |
954 | else { | |
955 | if (pair) | |
956 | hpp__entry_pair(he, pair, idx, buf, size); | |
957 | else | |
958 | hpp__entry_unpair(he, idx, buf, size); | |
959 | } | |
960 | } | |
961 | ||
962 | static int hpp__entry_global(struct perf_hpp_fmt *_fmt, struct perf_hpp *hpp, | |
963 | struct hist_entry *he) | |
964 | { | |
965 | struct diff_hpp_fmt *dfmt = | |
966 | container_of(_fmt, struct diff_hpp_fmt, fmt); | |
967 | char buf[MAX_COL_WIDTH] = " "; | |
968 | ||
22aeb7f5 | 969 | __hpp__entry_global(he, dfmt, buf, MAX_COL_WIDTH); |
345dc0b4 JO |
970 | |
971 | if (symbol_conf.field_sep) | |
972 | return scnprintf(hpp->buf, hpp->size, "%s", buf); | |
973 | else | |
974 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
975 | dfmt->header_width, buf); | |
976 | } | |
977 | ||
94a0793d NK |
978 | static int hpp__header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, |
979 | struct perf_evsel *evsel __maybe_unused) | |
345dc0b4 JO |
980 | { |
981 | struct diff_hpp_fmt *dfmt = | |
982 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
983 | ||
984 | BUG_ON(!dfmt->header); | |
985 | return scnprintf(hpp->buf, hpp->size, dfmt->header); | |
986 | } | |
987 | ||
988 | static int hpp__width(struct perf_hpp_fmt *fmt, | |
94a0793d NK |
989 | struct perf_hpp *hpp __maybe_unused, |
990 | struct perf_evsel *evsel __maybe_unused) | |
345dc0b4 JO |
991 | { |
992 | struct diff_hpp_fmt *dfmt = | |
993 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
994 | ||
995 | BUG_ON(dfmt->header_width <= 0); | |
996 | return dfmt->header_width; | |
997 | } | |
998 | ||
22aeb7f5 | 999 | static void init_header(struct data__file *d, struct diff_hpp_fmt *dfmt) |
345dc0b4 JO |
1000 | { |
1001 | #define MAX_HEADER_NAME 100 | |
1002 | char buf_indent[MAX_HEADER_NAME]; | |
1003 | char buf[MAX_HEADER_NAME]; | |
1004 | const char *header = NULL; | |
1005 | int width = 0; | |
1006 | ||
1007 | BUG_ON(dfmt->idx >= PERF_HPP_DIFF__MAX_INDEX); | |
1008 | header = columns[dfmt->idx].name; | |
1009 | width = columns[dfmt->idx].width; | |
1010 | ||
1011 | /* Only our defined HPP fmts should appear here. */ | |
1012 | BUG_ON(!header); | |
1013 | ||
22aeb7f5 JO |
1014 | if (data__files_cnt > 2) |
1015 | scnprintf(buf, MAX_HEADER_NAME, "%s/%d", header, d->idx); | |
1016 | ||
345dc0b4 JO |
1017 | #define NAME (data__files_cnt > 2 ? buf : header) |
1018 | dfmt->header_width = width; | |
1019 | width = (int) strlen(NAME); | |
1020 | if (dfmt->header_width < width) | |
1021 | dfmt->header_width = width; | |
1022 | ||
1023 | scnprintf(buf_indent, MAX_HEADER_NAME, "%*s", | |
1024 | dfmt->header_width, NAME); | |
1025 | ||
1026 | dfmt->header = strdup(buf_indent); | |
1027 | #undef MAX_HEADER_NAME | |
1028 | #undef NAME | |
1029 | } | |
1030 | ||
c818b498 | 1031 | static void data__hpp_register(struct data__file *d, int idx) |
345dc0b4 | 1032 | { |
c818b498 JO |
1033 | struct diff_hpp_fmt *dfmt = &d->fmt[idx]; |
1034 | struct perf_hpp_fmt *fmt = &dfmt->fmt; | |
1035 | ||
1036 | dfmt->idx = idx; | |
1037 | ||
1038 | fmt->header = hpp__header; | |
1039 | fmt->width = hpp__width; | |
1040 | fmt->entry = hpp__entry_global; | |
1041 | ||
1042 | /* TODO more colors */ | |
01f10bc8 RR |
1043 | switch (idx) { |
1044 | case PERF_HPP_DIFF__BASELINE: | |
c818b498 | 1045 | fmt->color = hpp__color_baseline; |
01f10bc8 RR |
1046 | break; |
1047 | case PERF_HPP_DIFF__DELTA: | |
1048 | fmt->color = hpp__color_delta; | |
1049 | break; | |
1f513b2c RR |
1050 | case PERF_HPP_DIFF__RATIO: |
1051 | fmt->color = hpp__color_ratio; | |
1052 | break; | |
a5846e21 RR |
1053 | case PERF_HPP_DIFF__WEIGHTED_DIFF: |
1054 | fmt->color = hpp__color_wdiff; | |
1055 | break; | |
01f10bc8 RR |
1056 | default: |
1057 | break; | |
1058 | } | |
345dc0b4 | 1059 | |
22aeb7f5 | 1060 | init_header(d, dfmt); |
c818b498 | 1061 | perf_hpp__column_register(fmt); |
345dc0b4 JO |
1062 | } |
1063 | ||
1064 | static void ui_init(void) | |
1065 | { | |
c818b498 JO |
1066 | struct data__file *d; |
1067 | int i; | |
1068 | ||
1069 | data__for_each_file(i, d) { | |
1070 | ||
1071 | /* | |
1072 | * Baseline or compute realted columns: | |
1073 | * | |
1074 | * PERF_HPP_DIFF__BASELINE | |
1075 | * PERF_HPP_DIFF__DELTA | |
1076 | * PERF_HPP_DIFF__RATIO | |
1077 | * PERF_HPP_DIFF__WEIGHTED_DIFF | |
1078 | */ | |
1079 | data__hpp_register(d, i ? compute_2_hpp[compute] : | |
1080 | PERF_HPP_DIFF__BASELINE); | |
1d77822e | 1081 | |
c818b498 JO |
1082 | /* |
1083 | * And the rest: | |
1084 | * | |
1085 | * PERF_HPP_DIFF__FORMULA | |
1086 | * PERF_HPP_DIFF__PERIOD | |
1087 | * PERF_HPP_DIFF__PERIOD_BASELINE | |
1088 | */ | |
1089 | if (show_formula && i) | |
1090 | data__hpp_register(d, PERF_HPP_DIFF__FORMULA); | |
ed279da2 | 1091 | |
c818b498 JO |
1092 | if (show_period) |
1093 | data__hpp_register(d, i ? PERF_HPP_DIFF__PERIOD : | |
1094 | PERF_HPP_DIFF__PERIOD_BASELINE); | |
61949b21 | 1095 | } |
1d77822e JO |
1096 | } |
1097 | ||
ec308426 | 1098 | static int data_init(int argc, const char **argv) |
86a9eee0 | 1099 | { |
ec308426 JO |
1100 | struct data__file *d; |
1101 | static const char *defaults[] = { | |
1102 | "perf.data.old", | |
1103 | "perf.data", | |
1104 | }; | |
22aeb7f5 | 1105 | bool use_default = true; |
ec308426 JO |
1106 | int i; |
1107 | ||
1108 | data__files_cnt = 2; | |
1109 | ||
86a9eee0 | 1110 | if (argc) { |
22aeb7f5 | 1111 | if (argc == 1) |
ec308426 | 1112 | defaults[1] = argv[0]; |
22aeb7f5 JO |
1113 | else { |
1114 | data__files_cnt = argc; | |
1115 | use_default = false; | |
1116 | } | |
d8d9608f | 1117 | } else if (perf_guest) { |
ec308426 JO |
1118 | defaults[0] = "perf.data.host"; |
1119 | defaults[1] = "perf.data.guest"; | |
86a9eee0 ACM |
1120 | } |
1121 | ||
5f3f8d3b JO |
1122 | if (sort_compute >= (unsigned int) data__files_cnt) { |
1123 | pr_err("Order option out of limit.\n"); | |
1124 | return -EINVAL; | |
1125 | } | |
1126 | ||
ec308426 JO |
1127 | data__files = zalloc(sizeof(*data__files) * data__files_cnt); |
1128 | if (!data__files) | |
1129 | return -ENOMEM; | |
1130 | ||
1131 | data__for_each_file(i, d) { | |
f5fc1412 JO |
1132 | struct perf_data_file *file = &d->file; |
1133 | ||
1134 | file->path = use_default ? defaults[i] : argv[i]; | |
1135 | file->mode = PERF_DATA_MODE_READ, | |
1136 | file->force = force, | |
1137 | ||
ec308426 JO |
1138 | d->idx = i; |
1139 | } | |
1140 | ||
1141 | return 0; | |
1142 | } | |
1143 | ||
1144 | int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused) | |
1145 | { | |
9ab1f508 KL |
1146 | int ret = hists__init(); |
1147 | ||
1148 | if (ret < 0) | |
1149 | return ret; | |
1150 | ||
0b93da17 NK |
1151 | perf_config(perf_default_config, NULL); |
1152 | ||
ec308426 JO |
1153 | argc = parse_options(argc, argv, options, diff_usage, 0); |
1154 | ||
0a7e6d1b | 1155 | if (symbol__init(NULL) < 0) |
655000e7 ACM |
1156 | return -1; |
1157 | ||
ec308426 JO |
1158 | if (data_init(argc, argv) < 0) |
1159 | return -1; | |
1160 | ||
1d77822e JO |
1161 | ui_init(); |
1162 | ||
512ae1bd NK |
1163 | sort__mode = SORT_MODE__DIFF; |
1164 | ||
55309985 NK |
1165 | if (setup_sorting() < 0) |
1166 | usage_with_options(diff_usage, options); | |
1167 | ||
86a9eee0 | 1168 | setup_pager(); |
c351c281 | 1169 | |
08e71542 | 1170 | sort__setup_elide(NULL); |
c351c281 | 1171 | |
86a9eee0 ACM |
1172 | return __cmd_diff(); |
1173 | } |