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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 | ||
1d037ca1 | 313 | static int diff__process_sample_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 314 | union perf_event *event, |
8d50e5b4 | 315 | struct perf_sample *sample, |
863e451f | 316 | struct perf_evsel *evsel, |
743eb868 | 317 | struct machine *machine) |
86a9eee0 ACM |
318 | { |
319 | struct addr_location al; | |
4ea062ed | 320 | struct hists *hists = evsel__hists(evsel); |
b91fc39f | 321 | int ret = -1; |
86a9eee0 | 322 | |
bb3eb566 | 323 | if (machine__resolve(machine, &al, sample) < 0) { |
86a9eee0 ACM |
324 | pr_warning("problem processing %d event, skipping it.\n", |
325 | event->header.type); | |
326 | return -1; | |
327 | } | |
328 | ||
0102ef3e | 329 | if (!hists__add_entry(hists, &al, NULL, NULL, NULL, sample, true)) { |
c82ee828 | 330 | pr_warning("problem incrementing symbol period, skipping event\n"); |
b91fc39f | 331 | goto out_put; |
86a9eee0 ACM |
332 | } |
333 | ||
820bc81f NK |
334 | /* |
335 | * The total_period is updated here before going to the output | |
336 | * tree since normally only the baseline hists will call | |
337 | * hists__output_resort() and precompute needs the total | |
338 | * period in order to sort entries by percentage delta. | |
339 | */ | |
4ea062ed | 340 | hists->stats.total_period += sample->period; |
820bc81f | 341 | if (!al.filtered) |
4ea062ed | 342 | hists->stats.total_non_filtered_period += sample->period; |
b91fc39f ACM |
343 | ret = 0; |
344 | out_put: | |
345 | addr_location__put(&al); | |
346 | return ret; | |
86a9eee0 ACM |
347 | } |
348 | ||
863e451f JO |
349 | static struct perf_tool tool = { |
350 | .sample = diff__process_sample_event, | |
351 | .mmap = perf_event__process_mmap, | |
68ca9d65 | 352 | .mmap2 = perf_event__process_mmap2, |
863e451f | 353 | .comm = perf_event__process_comm, |
f62d3f0f ACM |
354 | .exit = perf_event__process_exit, |
355 | .fork = perf_event__process_fork, | |
863e451f | 356 | .lost = perf_event__process_lost, |
0a8cb85c | 357 | .ordered_events = true, |
863e451f | 358 | .ordering_requires_timestamps = true, |
86a9eee0 ACM |
359 | }; |
360 | ||
863e451f JO |
361 | static struct perf_evsel *evsel_match(struct perf_evsel *evsel, |
362 | struct perf_evlist *evlist) | |
363 | { | |
364 | struct perf_evsel *e; | |
365 | ||
e5cadb93 | 366 | evlist__for_each_entry(evlist, e) { |
863e451f JO |
367 | if (perf_evsel__match2(evsel, e)) |
368 | return e; | |
0050f7aa | 369 | } |
863e451f JO |
370 | |
371 | return NULL; | |
372 | } | |
373 | ||
ce74f60e | 374 | static void perf_evlist__collapse_resort(struct perf_evlist *evlist) |
dd464345 JO |
375 | { |
376 | struct perf_evsel *evsel; | |
377 | ||
e5cadb93 | 378 | evlist__for_each_entry(evlist, evsel) { |
4ea062ed | 379 | struct hists *hists = evsel__hists(evsel); |
dd464345 | 380 | |
c1fb5651 | 381 | hists__collapse_resort(hists, NULL); |
dd464345 JO |
382 | } |
383 | } | |
384 | ||
ff21cef6 NK |
385 | static struct data__file *fmt_to_data_file(struct perf_hpp_fmt *fmt) |
386 | { | |
387 | struct diff_hpp_fmt *dfmt = container_of(fmt, struct diff_hpp_fmt, fmt); | |
388 | void *ptr = dfmt - dfmt->idx; | |
389 | struct data__file *d = container_of(ptr, struct data__file, fmt); | |
390 | ||
391 | return d; | |
392 | } | |
393 | ||
5f3f8d3b JO |
394 | static struct hist_entry* |
395 | get_pair_data(struct hist_entry *he, struct data__file *d) | |
396 | { | |
397 | if (hist_entry__has_pairs(he)) { | |
398 | struct hist_entry *pair; | |
399 | ||
400 | list_for_each_entry(pair, &he->pairs.head, pairs.node) | |
401 | if (pair->hists == d->hists) | |
402 | return pair; | |
403 | } | |
404 | ||
405 | return NULL; | |
406 | } | |
407 | ||
408 | static struct hist_entry* | |
409 | get_pair_fmt(struct hist_entry *he, struct diff_hpp_fmt *dfmt) | |
410 | { | |
ff21cef6 | 411 | struct data__file *d = fmt_to_data_file(&dfmt->fmt); |
5f3f8d3b JO |
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 | ||
52225036 | 421 | if (hists__has(hists, need_collapse)) |
ce74f60e NK |
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); |
6733d1bf | 433 | hist_entry__delete(he); |
a06d143e JO |
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 | ||
52225036 | 443 | if (hists__has(hists, need_collapse)) |
367c53c0 JO |
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; |
56495a8a NK |
451 | struct data__file *d; |
452 | int i; | |
96c47f19 | 453 | |
5f3f8d3b | 454 | he = rb_entry(next, struct hist_entry, rb_node_in); |
367c53c0 | 455 | next = rb_next(&he->rb_node_in); |
5f3f8d3b | 456 | |
56495a8a NK |
457 | data__for_each_file_new(i, d) { |
458 | pair = get_pair_data(he, d); | |
459 | if (!pair) | |
460 | continue; | |
461 | ||
462 | switch (compute) { | |
463 | case COMPUTE_DELTA: | |
464 | compute_delta(he, pair); | |
465 | break; | |
466 | case COMPUTE_RATIO: | |
467 | compute_ratio(he, pair); | |
468 | break; | |
469 | case COMPUTE_WEIGHTED_DIFF: | |
470 | compute_wdiff(he, pair); | |
471 | break; | |
472 | default: | |
473 | BUG_ON(1); | |
474 | } | |
96c47f19 JO |
475 | } |
476 | } | |
477 | } | |
478 | ||
479 | static int64_t cmp_doubles(double l, double r) | |
480 | { | |
481 | if (l > r) | |
482 | return -1; | |
483 | else if (l < r) | |
484 | return 1; | |
485 | else | |
486 | return 0; | |
487 | } | |
488 | ||
489 | static int64_t | |
5f3f8d3b | 490 | __hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, |
96c47f19 JO |
491 | int c) |
492 | { | |
493 | switch (c) { | |
494 | case COMPUTE_DELTA: | |
495 | { | |
496 | double l = left->diff.period_ratio_delta; | |
497 | double r = right->diff.period_ratio_delta; | |
498 | ||
499 | return cmp_doubles(l, r); | |
500 | } | |
501 | case COMPUTE_RATIO: | |
502 | { | |
503 | double l = left->diff.period_ratio; | |
504 | double r = right->diff.period_ratio; | |
505 | ||
506 | return cmp_doubles(l, r); | |
507 | } | |
81d5f958 JO |
508 | case COMPUTE_WEIGHTED_DIFF: |
509 | { | |
510 | s64 l = left->diff.wdiff; | |
511 | s64 r = right->diff.wdiff; | |
512 | ||
513 | return r - l; | |
514 | } | |
96c47f19 JO |
515 | default: |
516 | BUG_ON(1); | |
517 | } | |
518 | ||
519 | return 0; | |
520 | } | |
521 | ||
5f3f8d3b JO |
522 | static int64_t |
523 | hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, | |
56495a8a | 524 | int c, int sort_idx) |
5f3f8d3b JO |
525 | { |
526 | bool pairs_left = hist_entry__has_pairs(left); | |
527 | bool pairs_right = hist_entry__has_pairs(right); | |
528 | struct hist_entry *p_right, *p_left; | |
529 | ||
530 | if (!pairs_left && !pairs_right) | |
531 | return 0; | |
532 | ||
533 | if (!pairs_left || !pairs_right) | |
534 | return pairs_left ? -1 : 1; | |
535 | ||
56495a8a NK |
536 | p_left = get_pair_data(left, &data__files[sort_idx]); |
537 | p_right = get_pair_data(right, &data__files[sort_idx]); | |
5f3f8d3b JO |
538 | |
539 | if (!p_left && !p_right) | |
540 | return 0; | |
541 | ||
542 | if (!p_left || !p_right) | |
543 | return p_left ? -1 : 1; | |
544 | ||
545 | /* | |
546 | * We have 2 entries of same kind, let's | |
547 | * make the data comparison. | |
548 | */ | |
549 | return __hist_entry__cmp_compute(p_left, p_right, c); | |
550 | } | |
551 | ||
566b5cfb NK |
552 | static int64_t |
553 | hist_entry__cmp_compute_idx(struct hist_entry *left, struct hist_entry *right, | |
554 | int c, int sort_idx) | |
555 | { | |
556 | struct hist_entry *p_right, *p_left; | |
557 | ||
558 | p_left = get_pair_data(left, &data__files[sort_idx]); | |
559 | p_right = get_pair_data(right, &data__files[sort_idx]); | |
560 | ||
561 | if (!p_left && !p_right) | |
562 | return 0; | |
563 | ||
564 | if (!p_left || !p_right) | |
565 | return p_left ? -1 : 1; | |
566 | ||
567 | if (c != COMPUTE_DELTA) { | |
568 | /* | |
569 | * The delta can be computed without the baseline, but | |
570 | * others are not. Put those entries which have no | |
571 | * values below. | |
572 | */ | |
573 | if (left->dummy && right->dummy) | |
574 | return 0; | |
575 | ||
576 | if (left->dummy || right->dummy) | |
577 | return left->dummy ? 1 : -1; | |
578 | } | |
579 | ||
580 | return __hist_entry__cmp_compute(p_left, p_right, c); | |
581 | } | |
582 | ||
e7024fc3 | 583 | static int64_t |
87bbdf76 NK |
584 | hist_entry__cmp_nop(struct perf_hpp_fmt *fmt __maybe_unused, |
585 | struct hist_entry *left __maybe_unused, | |
e7024fc3 NK |
586 | struct hist_entry *right __maybe_unused) |
587 | { | |
588 | return 0; | |
589 | } | |
590 | ||
591 | static int64_t | |
87bbdf76 NK |
592 | hist_entry__cmp_baseline(struct perf_hpp_fmt *fmt __maybe_unused, |
593 | struct hist_entry *left, struct hist_entry *right) | |
e7024fc3 | 594 | { |
e7024fc3 NK |
595 | if (left->stat.period == right->stat.period) |
596 | return 0; | |
597 | return left->stat.period > right->stat.period ? 1 : -1; | |
598 | } | |
599 | ||
600 | static int64_t | |
56495a8a | 601 | hist_entry__cmp_delta(struct perf_hpp_fmt *fmt, |
87bbdf76 | 602 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 603 | { |
56495a8a NK |
604 | struct data__file *d = fmt_to_data_file(fmt); |
605 | ||
606 | return hist_entry__cmp_compute(right, left, COMPUTE_DELTA, d->idx); | |
e7024fc3 NK |
607 | } |
608 | ||
609 | static int64_t | |
56495a8a | 610 | hist_entry__cmp_ratio(struct perf_hpp_fmt *fmt, |
87bbdf76 | 611 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 612 | { |
56495a8a NK |
613 | struct data__file *d = fmt_to_data_file(fmt); |
614 | ||
615 | return hist_entry__cmp_compute(right, left, COMPUTE_RATIO, d->idx); | |
e7024fc3 NK |
616 | } |
617 | ||
618 | static int64_t | |
56495a8a | 619 | hist_entry__cmp_wdiff(struct perf_hpp_fmt *fmt, |
87bbdf76 | 620 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 621 | { |
56495a8a NK |
622 | struct data__file *d = fmt_to_data_file(fmt); |
623 | ||
624 | return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF, d->idx); | |
e7024fc3 NK |
625 | } |
626 | ||
566b5cfb NK |
627 | static int64_t |
628 | hist_entry__cmp_delta_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
629 | struct hist_entry *left, struct hist_entry *right) | |
630 | { | |
631 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_DELTA, | |
632 | sort_compute); | |
633 | } | |
634 | ||
635 | static int64_t | |
636 | hist_entry__cmp_ratio_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
637 | struct hist_entry *left, struct hist_entry *right) | |
638 | { | |
639 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_RATIO, | |
640 | sort_compute); | |
641 | } | |
642 | ||
643 | static int64_t | |
644 | hist_entry__cmp_wdiff_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
645 | struct hist_entry *left, struct hist_entry *right) | |
646 | { | |
647 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_WEIGHTED_DIFF, | |
648 | sort_compute); | |
649 | } | |
650 | ||
22aeb7f5 | 651 | static void hists__process(struct hists *hists) |
a06d143e | 652 | { |
a06d143e | 653 | if (show_baseline_only) |
22aeb7f5 | 654 | hists__baseline_only(hists); |
a06d143e | 655 | |
56495a8a | 656 | hists__precompute(hists); |
38259a17 | 657 | hists__output_resort(hists, NULL); |
96c47f19 | 658 | |
d05e3aae JO |
659 | hists__fprintf(hists, true, 0, 0, 0, stdout, |
660 | symbol_conf.use_callchain); | |
a06d143e JO |
661 | } |
662 | ||
1d81c7fc JO |
663 | static void data__fprintf(void) |
664 | { | |
665 | struct data__file *d; | |
666 | int i; | |
667 | ||
668 | fprintf(stdout, "# Data files:\n"); | |
669 | ||
670 | data__for_each_file(i, d) | |
671 | fprintf(stdout, "# [%d] %s %s\n", | |
f5fc1412 | 672 | d->idx, d->file.path, |
1d81c7fc JO |
673 | !d->idx ? "(Baseline)" : ""); |
674 | ||
675 | fprintf(stdout, "#\n"); | |
676 | } | |
677 | ||
ec308426 | 678 | static void data_process(void) |
86a9eee0 | 679 | { |
22aeb7f5 JO |
680 | struct perf_evlist *evlist_base = data__files[0].session->evlist; |
681 | struct perf_evsel *evsel_base; | |
863e451f | 682 | bool first = true; |
86a9eee0 | 683 | |
e5cadb93 | 684 | evlist__for_each_entry(evlist_base, evsel_base) { |
4ea062ed | 685 | struct hists *hists_base = evsel__hists(evsel_base); |
22aeb7f5 JO |
686 | struct data__file *d; |
687 | int i; | |
86a9eee0 | 688 | |
22aeb7f5 JO |
689 | data__for_each_file_new(i, d) { |
690 | struct perf_evlist *evlist = d->session->evlist; | |
691 | struct perf_evsel *evsel; | |
4ea062ed | 692 | struct hists *hists; |
22aeb7f5 JO |
693 | |
694 | evsel = evsel_match(evsel_base, evlist); | |
695 | if (!evsel) | |
696 | continue; | |
697 | ||
4ea062ed ACM |
698 | hists = evsel__hists(evsel); |
699 | d->hists = hists; | |
22aeb7f5 | 700 | |
4ea062ed | 701 | hists__match(hists_base, hists); |
22aeb7f5 JO |
702 | |
703 | if (!show_baseline_only) | |
4ea062ed | 704 | hists__link(hists_base, hists); |
22aeb7f5 | 705 | } |
86a9eee0 | 706 | |
ec308426 | 707 | fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", |
22aeb7f5 | 708 | perf_evsel__name(evsel_base)); |
863e451f | 709 | |
ec308426 | 710 | first = false; |
863e451f | 711 | |
22aeb7f5 | 712 | if (verbose || data__files_cnt > 2) |
1d81c7fc JO |
713 | data__fprintf(); |
714 | ||
f9db0d0f KL |
715 | /* Don't sort callchain for perf diff */ |
716 | perf_evsel__reset_sample_bit(evsel_base, CALLCHAIN); | |
717 | ||
4ea062ed | 718 | hists__process(hists_base); |
ec308426 JO |
719 | } |
720 | } | |
863e451f | 721 | |
c818b498 JO |
722 | static void data__free(struct data__file *d) |
723 | { | |
724 | int col; | |
725 | ||
726 | for (col = 0; col < PERF_HPP_DIFF__MAX_INDEX; col++) { | |
727 | struct diff_hpp_fmt *fmt = &d->fmt[col]; | |
728 | ||
74cf249d | 729 | zfree(&fmt->header); |
c818b498 JO |
730 | } |
731 | } | |
732 | ||
ec308426 JO |
733 | static int __cmd_diff(void) |
734 | { | |
735 | struct data__file *d; | |
736 | int ret = -EINVAL, i; | |
737 | ||
738 | data__for_each_file(i, d) { | |
f5fc1412 | 739 | d->session = perf_session__new(&d->file, false, &tool); |
ec308426 | 740 | if (!d->session) { |
f5fc1412 | 741 | pr_err("Failed to open %s\n", d->file.path); |
52e02834 | 742 | ret = -1; |
ec308426 JO |
743 | goto out_delete; |
744 | } | |
863e451f | 745 | |
b7b61cbe | 746 | ret = perf_session__process_events(d->session); |
ec308426 | 747 | if (ret) { |
f5fc1412 | 748 | pr_err("Failed to process %s\n", d->file.path); |
ec308426 JO |
749 | goto out_delete; |
750 | } | |
863e451f | 751 | |
ec308426 JO |
752 | perf_evlist__collapse_resort(d->session->evlist); |
753 | } | |
754 | ||
755 | data_process(); | |
863e451f | 756 | |
ec308426 JO |
757 | out_delete: |
758 | data__for_each_file(i, d) { | |
e1446551 | 759 | perf_session__delete(d->session); |
c818b498 | 760 | data__free(d); |
863e451f | 761 | } |
9c443dfd | 762 | |
ec308426 | 763 | free(data__files); |
86a9eee0 ACM |
764 | return ret; |
765 | } | |
766 | ||
0422a4fc | 767 | static const char * const diff_usage[] = { |
86a9eee0 | 768 | "perf diff [<options>] [old_file] [new_file]", |
0422a4fc | 769 | NULL, |
86a9eee0 ACM |
770 | }; |
771 | ||
772 | static const struct option options[] = { | |
c0555642 | 773 | OPT_INCR('v', "verbose", &verbose, |
86a9eee0 | 774 | "be more verbose (show symbol address, etc)"), |
a06d143e JO |
775 | OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, |
776 | "Show only items with match in baseline"), | |
81d5f958 JO |
777 | OPT_CALLBACK('c', "compute", &compute, |
778 | "delta,ratio,wdiff:w1,w2 (default delta)", | |
7aaf6b35 JO |
779 | "Entries differential computation selection", |
780 | setup_compute), | |
61949b21 JO |
781 | OPT_BOOLEAN('p', "period", &show_period, |
782 | "Show period values."), | |
ed279da2 JO |
783 | OPT_BOOLEAN('F', "formula", &show_formula, |
784 | "Show formula."), | |
86a9eee0 ACM |
785 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
786 | "dump raw trace in ASCII"), | |
787 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
6b1f3423 DA |
788 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
789 | "file", "kallsyms pathname"), | |
86a9eee0 ACM |
790 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, |
791 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
c410a338 ACM |
792 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
793 | "only consider symbols in these dsos"), | |
794 | OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
795 | "only consider symbols in these comms"), | |
796 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
797 | "only consider these symbols"), | |
c351c281 | 798 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
799 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
800 | " Please refer the man page for the complete list."), | |
8b8ca6e1 | 801 | OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator", |
c351c281 ACM |
802 | "separator for columns, no spaces will be added between " |
803 | "columns '.' is reserved."), | |
a7066709 HK |
804 | OPT_CALLBACK(0, "symfs", NULL, "directory", |
805 | "Look for files with symbols relative to this directory", | |
806 | symbol__config_symfs), | |
5f3f8d3b | 807 | OPT_UINTEGER('o', "order", &sort_compute, "Specify compute sorting."), |
8810f6ce NK |
808 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
809 | "How to display percentage of filtered entries", parse_filter_percentage), | |
86a9eee0 ACM |
810 | OPT_END() |
811 | }; | |
812 | ||
345dc0b4 | 813 | static double baseline_percent(struct hist_entry *he) |
1d77822e | 814 | { |
8810f6ce NK |
815 | u64 total = hists__total_period(he->hists); |
816 | ||
817 | return 100.0 * he->stat.period / total; | |
345dc0b4 | 818 | } |
7aaf6b35 | 819 | |
345dc0b4 JO |
820 | static int hpp__color_baseline(struct perf_hpp_fmt *fmt, |
821 | struct perf_hpp *hpp, struct hist_entry *he) | |
822 | { | |
823 | struct diff_hpp_fmt *dfmt = | |
824 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
825 | double percent = baseline_percent(he); | |
826 | char pfmt[20] = " "; | |
827 | ||
828 | if (!he->dummy) { | |
829 | scnprintf(pfmt, 20, "%%%d.2f%%%%", dfmt->header_width - 1); | |
830 | return percent_color_snprintf(hpp->buf, hpp->size, | |
831 | pfmt, percent); | |
832 | } else | |
833 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
834 | dfmt->header_width, pfmt); | |
835 | } | |
836 | ||
837 | static int hpp__entry_baseline(struct hist_entry *he, char *buf, size_t size) | |
838 | { | |
839 | double percent = baseline_percent(he); | |
840 | const char *fmt = symbol_conf.field_sep ? "%.2f" : "%6.2f%%"; | |
841 | int ret = 0; | |
842 | ||
843 | if (!he->dummy) | |
844 | ret = scnprintf(buf, size, fmt, percent); | |
845 | ||
846 | return ret; | |
847 | } | |
848 | ||
01f10bc8 RR |
849 | static int __hpp__color_compare(struct perf_hpp_fmt *fmt, |
850 | struct perf_hpp *hpp, struct hist_entry *he, | |
851 | int comparison_method) | |
852 | { | |
853 | struct diff_hpp_fmt *dfmt = | |
854 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
855 | struct hist_entry *pair = get_pair_fmt(he, dfmt); | |
856 | double diff; | |
a5846e21 | 857 | s64 wdiff; |
01f10bc8 RR |
858 | char pfmt[20] = " "; |
859 | ||
860 | if (!pair) | |
ec3d07cb | 861 | goto no_print; |
01f10bc8 RR |
862 | |
863 | switch (comparison_method) { | |
864 | case COMPUTE_DELTA: | |
865 | if (pair->diff.computed) | |
866 | diff = pair->diff.period_ratio_delta; | |
867 | else | |
868 | diff = compute_delta(he, pair); | |
869 | ||
01f10bc8 RR |
870 | scnprintf(pfmt, 20, "%%%+d.2f%%%%", dfmt->header_width - 1); |
871 | return percent_color_snprintf(hpp->buf, hpp->size, | |
872 | pfmt, diff); | |
1f513b2c RR |
873 | case COMPUTE_RATIO: |
874 | if (he->dummy) | |
875 | goto dummy_print; | |
876 | if (pair->diff.computed) | |
877 | diff = pair->diff.period_ratio; | |
878 | else | |
879 | diff = compute_ratio(he, pair); | |
880 | ||
881 | scnprintf(pfmt, 20, "%%%d.6f", dfmt->header_width); | |
882 | return value_color_snprintf(hpp->buf, hpp->size, | |
883 | pfmt, diff); | |
a5846e21 RR |
884 | case COMPUTE_WEIGHTED_DIFF: |
885 | if (he->dummy) | |
886 | goto dummy_print; | |
887 | if (pair->diff.computed) | |
888 | wdiff = pair->diff.wdiff; | |
889 | else | |
890 | wdiff = compute_wdiff(he, pair); | |
891 | ||
892 | scnprintf(pfmt, 20, "%%14ld", dfmt->header_width); | |
893 | return color_snprintf(hpp->buf, hpp->size, | |
894 | get_percent_color(wdiff), | |
895 | pfmt, wdiff); | |
01f10bc8 RR |
896 | default: |
897 | BUG_ON(1); | |
898 | } | |
899 | dummy_print: | |
ec3d07cb NK |
900 | return scnprintf(hpp->buf, hpp->size, "%*s", |
901 | dfmt->header_width, "N/A"); | |
902 | no_print: | |
01f10bc8 RR |
903 | return scnprintf(hpp->buf, hpp->size, "%*s", |
904 | dfmt->header_width, pfmt); | |
905 | } | |
906 | ||
907 | static int hpp__color_delta(struct perf_hpp_fmt *fmt, | |
908 | struct perf_hpp *hpp, struct hist_entry *he) | |
909 | { | |
910 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_DELTA); | |
911 | } | |
912 | ||
1f513b2c RR |
913 | static int hpp__color_ratio(struct perf_hpp_fmt *fmt, |
914 | struct perf_hpp *hpp, struct hist_entry *he) | |
915 | { | |
916 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_RATIO); | |
917 | } | |
918 | ||
a5846e21 RR |
919 | static int hpp__color_wdiff(struct perf_hpp_fmt *fmt, |
920 | struct perf_hpp *hpp, struct hist_entry *he) | |
921 | { | |
922 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_WEIGHTED_DIFF); | |
923 | } | |
924 | ||
345dc0b4 JO |
925 | static void |
926 | hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size) | |
927 | { | |
928 | switch (idx) { | |
929 | case PERF_HPP_DIFF__PERIOD_BASELINE: | |
930 | scnprintf(buf, size, "%" PRIu64, he->stat.period); | |
7aaf6b35 | 931 | break; |
345dc0b4 JO |
932 | |
933 | default: | |
81d5f958 | 934 | break; |
345dc0b4 JO |
935 | } |
936 | } | |
937 | ||
938 | static void | |
939 | hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair, | |
940 | int idx, char *buf, size_t size) | |
941 | { | |
942 | double diff; | |
943 | double ratio; | |
944 | s64 wdiff; | |
945 | ||
946 | switch (idx) { | |
947 | case PERF_HPP_DIFF__DELTA: | |
948 | if (pair->diff.computed) | |
949 | diff = pair->diff.period_ratio_delta; | |
950 | else | |
ef358e6d | 951 | diff = compute_delta(he, pair); |
345dc0b4 | 952 | |
ec3d07cb | 953 | scnprintf(buf, size, "%+4.2F%%", diff); |
345dc0b4 JO |
954 | break; |
955 | ||
956 | case PERF_HPP_DIFF__RATIO: | |
957 | /* No point for ratio number if we are dummy.. */ | |
ec3d07cb NK |
958 | if (he->dummy) { |
959 | scnprintf(buf, size, "N/A"); | |
345dc0b4 | 960 | break; |
ec3d07cb | 961 | } |
345dc0b4 JO |
962 | |
963 | if (pair->diff.computed) | |
964 | ratio = pair->diff.period_ratio; | |
965 | else | |
ef358e6d | 966 | ratio = compute_ratio(he, pair); |
345dc0b4 JO |
967 | |
968 | if (ratio > 0.0) | |
969 | scnprintf(buf, size, "%14.6F", ratio); | |
970 | break; | |
971 | ||
972 | case PERF_HPP_DIFF__WEIGHTED_DIFF: | |
973 | /* No point for wdiff number if we are dummy.. */ | |
ec3d07cb NK |
974 | if (he->dummy) { |
975 | scnprintf(buf, size, "N/A"); | |
345dc0b4 | 976 | break; |
ec3d07cb | 977 | } |
345dc0b4 JO |
978 | |
979 | if (pair->diff.computed) | |
980 | wdiff = pair->diff.wdiff; | |
981 | else | |
ef358e6d | 982 | wdiff = compute_wdiff(he, pair); |
345dc0b4 JO |
983 | |
984 | if (wdiff != 0) | |
985 | scnprintf(buf, size, "%14ld", wdiff); | |
986 | break; | |
987 | ||
988 | case PERF_HPP_DIFF__FORMULA: | |
ef358e6d | 989 | formula_fprintf(he, pair, buf, size); |
7aaf6b35 | 990 | break; |
345dc0b4 JO |
991 | |
992 | case PERF_HPP_DIFF__PERIOD: | |
993 | scnprintf(buf, size, "%" PRIu64, pair->stat.period); | |
994 | break; | |
995 | ||
7aaf6b35 JO |
996 | default: |
997 | BUG_ON(1); | |
998 | }; | |
345dc0b4 JO |
999 | } |
1000 | ||
1001 | static void | |
22aeb7f5 JO |
1002 | __hpp__entry_global(struct hist_entry *he, struct diff_hpp_fmt *dfmt, |
1003 | char *buf, size_t size) | |
345dc0b4 | 1004 | { |
5f3f8d3b | 1005 | struct hist_entry *pair = get_pair_fmt(he, dfmt); |
22aeb7f5 | 1006 | int idx = dfmt->idx; |
345dc0b4 JO |
1007 | |
1008 | /* baseline is special */ | |
1009 | if (idx == PERF_HPP_DIFF__BASELINE) | |
1010 | hpp__entry_baseline(he, buf, size); | |
1011 | else { | |
1012 | if (pair) | |
1013 | hpp__entry_pair(he, pair, idx, buf, size); | |
1014 | else | |
1015 | hpp__entry_unpair(he, idx, buf, size); | |
1016 | } | |
1017 | } | |
1018 | ||
1019 | static int hpp__entry_global(struct perf_hpp_fmt *_fmt, struct perf_hpp *hpp, | |
1020 | struct hist_entry *he) | |
1021 | { | |
1022 | struct diff_hpp_fmt *dfmt = | |
1023 | container_of(_fmt, struct diff_hpp_fmt, fmt); | |
1024 | char buf[MAX_COL_WIDTH] = " "; | |
1025 | ||
22aeb7f5 | 1026 | __hpp__entry_global(he, dfmt, buf, MAX_COL_WIDTH); |
345dc0b4 JO |
1027 | |
1028 | if (symbol_conf.field_sep) | |
1029 | return scnprintf(hpp->buf, hpp->size, "%s", buf); | |
1030 | else | |
1031 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
1032 | dfmt->header_width, buf); | |
1033 | } | |
1034 | ||
94a0793d | 1035 | static int hpp__header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, |
74bb43f2 | 1036 | struct hists *hists __maybe_unused, |
29659ab4 JO |
1037 | int line __maybe_unused, |
1038 | int *span __maybe_unused) | |
345dc0b4 JO |
1039 | { |
1040 | struct diff_hpp_fmt *dfmt = | |
1041 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1042 | ||
1043 | BUG_ON(!dfmt->header); | |
1044 | return scnprintf(hpp->buf, hpp->size, dfmt->header); | |
1045 | } | |
1046 | ||
1047 | static int hpp__width(struct perf_hpp_fmt *fmt, | |
94a0793d | 1048 | struct perf_hpp *hpp __maybe_unused, |
da1b0407 | 1049 | struct hists *hists __maybe_unused) |
345dc0b4 JO |
1050 | { |
1051 | struct diff_hpp_fmt *dfmt = | |
1052 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1053 | ||
1054 | BUG_ON(dfmt->header_width <= 0); | |
1055 | return dfmt->header_width; | |
1056 | } | |
1057 | ||
22aeb7f5 | 1058 | static void init_header(struct data__file *d, struct diff_hpp_fmt *dfmt) |
345dc0b4 JO |
1059 | { |
1060 | #define MAX_HEADER_NAME 100 | |
1061 | char buf_indent[MAX_HEADER_NAME]; | |
1062 | char buf[MAX_HEADER_NAME]; | |
1063 | const char *header = NULL; | |
1064 | int width = 0; | |
1065 | ||
1066 | BUG_ON(dfmt->idx >= PERF_HPP_DIFF__MAX_INDEX); | |
1067 | header = columns[dfmt->idx].name; | |
1068 | width = columns[dfmt->idx].width; | |
1069 | ||
1070 | /* Only our defined HPP fmts should appear here. */ | |
1071 | BUG_ON(!header); | |
1072 | ||
22aeb7f5 JO |
1073 | if (data__files_cnt > 2) |
1074 | scnprintf(buf, MAX_HEADER_NAME, "%s/%d", header, d->idx); | |
1075 | ||
345dc0b4 JO |
1076 | #define NAME (data__files_cnt > 2 ? buf : header) |
1077 | dfmt->header_width = width; | |
1078 | width = (int) strlen(NAME); | |
1079 | if (dfmt->header_width < width) | |
1080 | dfmt->header_width = width; | |
1081 | ||
1082 | scnprintf(buf_indent, MAX_HEADER_NAME, "%*s", | |
1083 | dfmt->header_width, NAME); | |
1084 | ||
1085 | dfmt->header = strdup(buf_indent); | |
1086 | #undef MAX_HEADER_NAME | |
1087 | #undef NAME | |
1088 | } | |
1089 | ||
c818b498 | 1090 | static void data__hpp_register(struct data__file *d, int idx) |
345dc0b4 | 1091 | { |
c818b498 JO |
1092 | struct diff_hpp_fmt *dfmt = &d->fmt[idx]; |
1093 | struct perf_hpp_fmt *fmt = &dfmt->fmt; | |
1094 | ||
1095 | dfmt->idx = idx; | |
1096 | ||
1097 | fmt->header = hpp__header; | |
1098 | fmt->width = hpp__width; | |
1099 | fmt->entry = hpp__entry_global; | |
e7024fc3 NK |
1100 | fmt->cmp = hist_entry__cmp_nop; |
1101 | fmt->collapse = hist_entry__cmp_nop; | |
c818b498 JO |
1102 | |
1103 | /* TODO more colors */ | |
01f10bc8 RR |
1104 | switch (idx) { |
1105 | case PERF_HPP_DIFF__BASELINE: | |
c818b498 | 1106 | fmt->color = hpp__color_baseline; |
e7024fc3 | 1107 | fmt->sort = hist_entry__cmp_baseline; |
01f10bc8 RR |
1108 | break; |
1109 | case PERF_HPP_DIFF__DELTA: | |
1110 | fmt->color = hpp__color_delta; | |
e7024fc3 | 1111 | fmt->sort = hist_entry__cmp_delta; |
01f10bc8 | 1112 | break; |
1f513b2c RR |
1113 | case PERF_HPP_DIFF__RATIO: |
1114 | fmt->color = hpp__color_ratio; | |
e7024fc3 | 1115 | fmt->sort = hist_entry__cmp_ratio; |
1f513b2c | 1116 | break; |
a5846e21 RR |
1117 | case PERF_HPP_DIFF__WEIGHTED_DIFF: |
1118 | fmt->color = hpp__color_wdiff; | |
e7024fc3 | 1119 | fmt->sort = hist_entry__cmp_wdiff; |
a5846e21 | 1120 | break; |
01f10bc8 | 1121 | default: |
e7024fc3 | 1122 | fmt->sort = hist_entry__cmp_nop; |
01f10bc8 RR |
1123 | break; |
1124 | } | |
345dc0b4 | 1125 | |
22aeb7f5 | 1126 | init_header(d, dfmt); |
c818b498 | 1127 | perf_hpp__column_register(fmt); |
e7024fc3 | 1128 | perf_hpp__register_sort_field(fmt); |
345dc0b4 JO |
1129 | } |
1130 | ||
566b5cfb | 1131 | static int ui_init(void) |
345dc0b4 | 1132 | { |
c818b498 | 1133 | struct data__file *d; |
566b5cfb | 1134 | struct perf_hpp_fmt *fmt; |
c818b498 JO |
1135 | int i; |
1136 | ||
1137 | data__for_each_file(i, d) { | |
1138 | ||
1139 | /* | |
1140 | * Baseline or compute realted columns: | |
1141 | * | |
1142 | * PERF_HPP_DIFF__BASELINE | |
1143 | * PERF_HPP_DIFF__DELTA | |
1144 | * PERF_HPP_DIFF__RATIO | |
1145 | * PERF_HPP_DIFF__WEIGHTED_DIFF | |
1146 | */ | |
1147 | data__hpp_register(d, i ? compute_2_hpp[compute] : | |
1148 | PERF_HPP_DIFF__BASELINE); | |
1d77822e | 1149 | |
c818b498 JO |
1150 | /* |
1151 | * And the rest: | |
1152 | * | |
1153 | * PERF_HPP_DIFF__FORMULA | |
1154 | * PERF_HPP_DIFF__PERIOD | |
1155 | * PERF_HPP_DIFF__PERIOD_BASELINE | |
1156 | */ | |
1157 | if (show_formula && i) | |
1158 | data__hpp_register(d, PERF_HPP_DIFF__FORMULA); | |
ed279da2 | 1159 | |
c818b498 JO |
1160 | if (show_period) |
1161 | data__hpp_register(d, i ? PERF_HPP_DIFF__PERIOD : | |
1162 | PERF_HPP_DIFF__PERIOD_BASELINE); | |
61949b21 | 1163 | } |
566b5cfb NK |
1164 | |
1165 | if (!sort_compute) | |
1166 | return 0; | |
1167 | ||
1168 | /* | |
1169 | * Prepend an fmt to sort on columns at 'sort_compute' first. | |
1170 | * This fmt is added only to the sort list but not to the | |
1171 | * output fields list. | |
1172 | * | |
1173 | * Note that this column (data) can be compared twice - one | |
1174 | * for this 'sort_compute' fmt and another for the normal | |
1175 | * diff_hpp_fmt. But it shouldn't a problem as most entries | |
1176 | * will be sorted out by first try or baseline and comparing | |
1177 | * is not a costly operation. | |
1178 | */ | |
1179 | fmt = zalloc(sizeof(*fmt)); | |
1180 | if (fmt == NULL) { | |
1181 | pr_err("Memory allocation failed\n"); | |
1182 | return -1; | |
1183 | } | |
1184 | ||
1185 | fmt->cmp = hist_entry__cmp_nop; | |
1186 | fmt->collapse = hist_entry__cmp_nop; | |
1187 | ||
1188 | switch (compute) { | |
1189 | case COMPUTE_DELTA: | |
1190 | fmt->sort = hist_entry__cmp_delta_idx; | |
1191 | break; | |
1192 | case COMPUTE_RATIO: | |
1193 | fmt->sort = hist_entry__cmp_ratio_idx; | |
1194 | break; | |
1195 | case COMPUTE_WEIGHTED_DIFF: | |
1196 | fmt->sort = hist_entry__cmp_wdiff_idx; | |
1197 | break; | |
1198 | default: | |
1199 | BUG_ON(1); | |
1200 | } | |
1201 | ||
a1c9f97f | 1202 | perf_hpp__prepend_sort_field(fmt); |
566b5cfb | 1203 | return 0; |
1d77822e JO |
1204 | } |
1205 | ||
ec308426 | 1206 | static int data_init(int argc, const char **argv) |
86a9eee0 | 1207 | { |
ec308426 JO |
1208 | struct data__file *d; |
1209 | static const char *defaults[] = { | |
1210 | "perf.data.old", | |
1211 | "perf.data", | |
1212 | }; | |
22aeb7f5 | 1213 | bool use_default = true; |
ec308426 JO |
1214 | int i; |
1215 | ||
1216 | data__files_cnt = 2; | |
1217 | ||
86a9eee0 | 1218 | if (argc) { |
22aeb7f5 | 1219 | if (argc == 1) |
ec308426 | 1220 | defaults[1] = argv[0]; |
22aeb7f5 JO |
1221 | else { |
1222 | data__files_cnt = argc; | |
1223 | use_default = false; | |
1224 | } | |
d8d9608f | 1225 | } else if (perf_guest) { |
ec308426 JO |
1226 | defaults[0] = "perf.data.host"; |
1227 | defaults[1] = "perf.data.guest"; | |
86a9eee0 ACM |
1228 | } |
1229 | ||
5f3f8d3b JO |
1230 | if (sort_compute >= (unsigned int) data__files_cnt) { |
1231 | pr_err("Order option out of limit.\n"); | |
1232 | return -EINVAL; | |
1233 | } | |
1234 | ||
ec308426 JO |
1235 | data__files = zalloc(sizeof(*data__files) * data__files_cnt); |
1236 | if (!data__files) | |
1237 | return -ENOMEM; | |
1238 | ||
1239 | data__for_each_file(i, d) { | |
f5fc1412 JO |
1240 | struct perf_data_file *file = &d->file; |
1241 | ||
1242 | file->path = use_default ? defaults[i] : argv[i]; | |
1243 | file->mode = PERF_DATA_MODE_READ, | |
1244 | file->force = force, | |
1245 | ||
ec308426 JO |
1246 | d->idx = i; |
1247 | } | |
1248 | ||
1249 | return 0; | |
1250 | } | |
1251 | ||
1252 | int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused) | |
1253 | { | |
9ab1f508 KL |
1254 | int ret = hists__init(); |
1255 | ||
1256 | if (ret < 0) | |
1257 | return ret; | |
1258 | ||
ec308426 JO |
1259 | argc = parse_options(argc, argv, options, diff_usage, 0); |
1260 | ||
0a7e6d1b | 1261 | if (symbol__init(NULL) < 0) |
655000e7 ACM |
1262 | return -1; |
1263 | ||
ec308426 JO |
1264 | if (data_init(argc, argv) < 0) |
1265 | return -1; | |
1266 | ||
566b5cfb NK |
1267 | if (ui_init() < 0) |
1268 | return -1; | |
1d77822e | 1269 | |
512ae1bd NK |
1270 | sort__mode = SORT_MODE__DIFF; |
1271 | ||
40184c46 | 1272 | if (setup_sorting(NULL) < 0) |
55309985 NK |
1273 | usage_with_options(diff_usage, options); |
1274 | ||
86a9eee0 | 1275 | setup_pager(); |
c351c281 | 1276 | |
08e71542 | 1277 | sort__setup_elide(NULL); |
c351c281 | 1278 | |
86a9eee0 ACM |
1279 | return __cmd_diff(); |
1280 | } |