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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 | ||
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 | ||
ff21cef6 NK |
393 | static struct data__file *fmt_to_data_file(struct perf_hpp_fmt *fmt) |
394 | { | |
395 | struct diff_hpp_fmt *dfmt = container_of(fmt, struct diff_hpp_fmt, fmt); | |
396 | void *ptr = dfmt - dfmt->idx; | |
397 | struct data__file *d = container_of(ptr, struct data__file, fmt); | |
398 | ||
399 | return d; | |
400 | } | |
401 | ||
5f3f8d3b JO |
402 | static struct hist_entry* |
403 | get_pair_data(struct hist_entry *he, struct data__file *d) | |
404 | { | |
405 | if (hist_entry__has_pairs(he)) { | |
406 | struct hist_entry *pair; | |
407 | ||
408 | list_for_each_entry(pair, &he->pairs.head, pairs.node) | |
409 | if (pair->hists == d->hists) | |
410 | return pair; | |
411 | } | |
412 | ||
413 | return NULL; | |
414 | } | |
415 | ||
416 | static struct hist_entry* | |
417 | get_pair_fmt(struct hist_entry *he, struct diff_hpp_fmt *dfmt) | |
418 | { | |
ff21cef6 | 419 | struct data__file *d = fmt_to_data_file(&dfmt->fmt); |
5f3f8d3b JO |
420 | |
421 | return get_pair_data(he, d); | |
422 | } | |
423 | ||
a06d143e JO |
424 | static void hists__baseline_only(struct hists *hists) |
425 | { | |
ce74f60e NK |
426 | struct rb_root *root; |
427 | struct rb_node *next; | |
428 | ||
429 | if (sort__need_collapse) | |
430 | root = &hists->entries_collapsed; | |
431 | else | |
432 | root = hists->entries_in; | |
a06d143e | 433 | |
ce74f60e | 434 | next = rb_first(root); |
a06d143e | 435 | while (next != NULL) { |
ce74f60e | 436 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in); |
a06d143e | 437 | |
ce74f60e | 438 | next = rb_next(&he->rb_node_in); |
b821c732 | 439 | if (!hist_entry__next_pair(he)) { |
ce74f60e | 440 | rb_erase(&he->rb_node_in, root); |
6733d1bf | 441 | hist_entry__delete(he); |
a06d143e JO |
442 | } |
443 | } | |
444 | } | |
445 | ||
96c47f19 JO |
446 | static void hists__precompute(struct hists *hists) |
447 | { | |
367c53c0 JO |
448 | struct rb_root *root; |
449 | struct rb_node *next; | |
450 | ||
451 | if (sort__need_collapse) | |
452 | root = &hists->entries_collapsed; | |
453 | else | |
454 | root = hists->entries_in; | |
96c47f19 | 455 | |
367c53c0 | 456 | next = rb_first(root); |
96c47f19 | 457 | while (next != NULL) { |
5f3f8d3b | 458 | struct hist_entry *he, *pair; |
56495a8a NK |
459 | struct data__file *d; |
460 | int i; | |
96c47f19 | 461 | |
5f3f8d3b | 462 | he = rb_entry(next, struct hist_entry, rb_node_in); |
367c53c0 | 463 | next = rb_next(&he->rb_node_in); |
5f3f8d3b | 464 | |
56495a8a NK |
465 | data__for_each_file_new(i, d) { |
466 | pair = get_pair_data(he, d); | |
467 | if (!pair) | |
468 | continue; | |
469 | ||
470 | switch (compute) { | |
471 | case COMPUTE_DELTA: | |
472 | compute_delta(he, pair); | |
473 | break; | |
474 | case COMPUTE_RATIO: | |
475 | compute_ratio(he, pair); | |
476 | break; | |
477 | case COMPUTE_WEIGHTED_DIFF: | |
478 | compute_wdiff(he, pair); | |
479 | break; | |
480 | default: | |
481 | BUG_ON(1); | |
482 | } | |
96c47f19 JO |
483 | } |
484 | } | |
485 | } | |
486 | ||
487 | static int64_t cmp_doubles(double l, double r) | |
488 | { | |
489 | if (l > r) | |
490 | return -1; | |
491 | else if (l < r) | |
492 | return 1; | |
493 | else | |
494 | return 0; | |
495 | } | |
496 | ||
497 | static int64_t | |
5f3f8d3b | 498 | __hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, |
96c47f19 JO |
499 | int c) |
500 | { | |
501 | switch (c) { | |
502 | case COMPUTE_DELTA: | |
503 | { | |
504 | double l = left->diff.period_ratio_delta; | |
505 | double r = right->diff.period_ratio_delta; | |
506 | ||
507 | return cmp_doubles(l, r); | |
508 | } | |
509 | case COMPUTE_RATIO: | |
510 | { | |
511 | double l = left->diff.period_ratio; | |
512 | double r = right->diff.period_ratio; | |
513 | ||
514 | return cmp_doubles(l, r); | |
515 | } | |
81d5f958 JO |
516 | case COMPUTE_WEIGHTED_DIFF: |
517 | { | |
518 | s64 l = left->diff.wdiff; | |
519 | s64 r = right->diff.wdiff; | |
520 | ||
521 | return r - l; | |
522 | } | |
96c47f19 JO |
523 | default: |
524 | BUG_ON(1); | |
525 | } | |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
5f3f8d3b JO |
530 | static int64_t |
531 | hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, | |
56495a8a | 532 | int c, int sort_idx) |
5f3f8d3b JO |
533 | { |
534 | bool pairs_left = hist_entry__has_pairs(left); | |
535 | bool pairs_right = hist_entry__has_pairs(right); | |
536 | struct hist_entry *p_right, *p_left; | |
537 | ||
538 | if (!pairs_left && !pairs_right) | |
539 | return 0; | |
540 | ||
541 | if (!pairs_left || !pairs_right) | |
542 | return pairs_left ? -1 : 1; | |
543 | ||
56495a8a NK |
544 | p_left = get_pair_data(left, &data__files[sort_idx]); |
545 | p_right = get_pair_data(right, &data__files[sort_idx]); | |
5f3f8d3b JO |
546 | |
547 | if (!p_left && !p_right) | |
548 | return 0; | |
549 | ||
550 | if (!p_left || !p_right) | |
551 | return p_left ? -1 : 1; | |
552 | ||
553 | /* | |
554 | * We have 2 entries of same kind, let's | |
555 | * make the data comparison. | |
556 | */ | |
557 | return __hist_entry__cmp_compute(p_left, p_right, c); | |
558 | } | |
559 | ||
566b5cfb NK |
560 | static int64_t |
561 | hist_entry__cmp_compute_idx(struct hist_entry *left, struct hist_entry *right, | |
562 | int c, int sort_idx) | |
563 | { | |
564 | struct hist_entry *p_right, *p_left; | |
565 | ||
566 | p_left = get_pair_data(left, &data__files[sort_idx]); | |
567 | p_right = get_pair_data(right, &data__files[sort_idx]); | |
568 | ||
569 | if (!p_left && !p_right) | |
570 | return 0; | |
571 | ||
572 | if (!p_left || !p_right) | |
573 | return p_left ? -1 : 1; | |
574 | ||
575 | if (c != COMPUTE_DELTA) { | |
576 | /* | |
577 | * The delta can be computed without the baseline, but | |
578 | * others are not. Put those entries which have no | |
579 | * values below. | |
580 | */ | |
581 | if (left->dummy && right->dummy) | |
582 | return 0; | |
583 | ||
584 | if (left->dummy || right->dummy) | |
585 | return left->dummy ? 1 : -1; | |
586 | } | |
587 | ||
588 | return __hist_entry__cmp_compute(p_left, p_right, c); | |
589 | } | |
590 | ||
e7024fc3 | 591 | static int64_t |
87bbdf76 NK |
592 | hist_entry__cmp_nop(struct perf_hpp_fmt *fmt __maybe_unused, |
593 | struct hist_entry *left __maybe_unused, | |
e7024fc3 NK |
594 | struct hist_entry *right __maybe_unused) |
595 | { | |
596 | return 0; | |
597 | } | |
598 | ||
599 | static int64_t | |
87bbdf76 NK |
600 | hist_entry__cmp_baseline(struct perf_hpp_fmt *fmt __maybe_unused, |
601 | struct hist_entry *left, struct hist_entry *right) | |
e7024fc3 | 602 | { |
e7024fc3 NK |
603 | if (left->stat.period == right->stat.period) |
604 | return 0; | |
605 | return left->stat.period > right->stat.period ? 1 : -1; | |
606 | } | |
607 | ||
608 | static int64_t | |
56495a8a | 609 | hist_entry__cmp_delta(struct perf_hpp_fmt *fmt, |
87bbdf76 | 610 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 611 | { |
56495a8a NK |
612 | struct data__file *d = fmt_to_data_file(fmt); |
613 | ||
614 | return hist_entry__cmp_compute(right, left, COMPUTE_DELTA, d->idx); | |
e7024fc3 NK |
615 | } |
616 | ||
617 | static int64_t | |
56495a8a | 618 | hist_entry__cmp_ratio(struct perf_hpp_fmt *fmt, |
87bbdf76 | 619 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 620 | { |
56495a8a NK |
621 | struct data__file *d = fmt_to_data_file(fmt); |
622 | ||
623 | return hist_entry__cmp_compute(right, left, COMPUTE_RATIO, d->idx); | |
e7024fc3 NK |
624 | } |
625 | ||
626 | static int64_t | |
56495a8a | 627 | hist_entry__cmp_wdiff(struct perf_hpp_fmt *fmt, |
87bbdf76 | 628 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 629 | { |
56495a8a NK |
630 | struct data__file *d = fmt_to_data_file(fmt); |
631 | ||
632 | return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF, d->idx); | |
e7024fc3 NK |
633 | } |
634 | ||
566b5cfb NK |
635 | static int64_t |
636 | hist_entry__cmp_delta_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_DELTA, | |
640 | sort_compute); | |
641 | } | |
642 | ||
643 | static int64_t | |
644 | hist_entry__cmp_ratio_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_RATIO, | |
648 | sort_compute); | |
649 | } | |
650 | ||
651 | static int64_t | |
652 | hist_entry__cmp_wdiff_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
653 | struct hist_entry *left, struct hist_entry *right) | |
654 | { | |
655 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_WEIGHTED_DIFF, | |
656 | sort_compute); | |
657 | } | |
658 | ||
22aeb7f5 | 659 | static void hists__process(struct hists *hists) |
a06d143e | 660 | { |
a06d143e | 661 | if (show_baseline_only) |
22aeb7f5 | 662 | hists__baseline_only(hists); |
a06d143e | 663 | |
56495a8a | 664 | hists__precompute(hists); |
38259a17 | 665 | hists__output_resort(hists, NULL); |
96c47f19 | 666 | |
22aeb7f5 | 667 | hists__fprintf(hists, true, 0, 0, 0, stdout); |
a06d143e JO |
668 | } |
669 | ||
1d81c7fc JO |
670 | static void data__fprintf(void) |
671 | { | |
672 | struct data__file *d; | |
673 | int i; | |
674 | ||
675 | fprintf(stdout, "# Data files:\n"); | |
676 | ||
677 | data__for_each_file(i, d) | |
678 | fprintf(stdout, "# [%d] %s %s\n", | |
f5fc1412 | 679 | d->idx, d->file.path, |
1d81c7fc JO |
680 | !d->idx ? "(Baseline)" : ""); |
681 | ||
682 | fprintf(stdout, "#\n"); | |
683 | } | |
684 | ||
ec308426 | 685 | static void data_process(void) |
86a9eee0 | 686 | { |
22aeb7f5 JO |
687 | struct perf_evlist *evlist_base = data__files[0].session->evlist; |
688 | struct perf_evsel *evsel_base; | |
863e451f | 689 | bool first = true; |
86a9eee0 | 690 | |
0050f7aa | 691 | evlist__for_each(evlist_base, evsel_base) { |
4ea062ed | 692 | struct hists *hists_base = evsel__hists(evsel_base); |
22aeb7f5 JO |
693 | struct data__file *d; |
694 | int i; | |
86a9eee0 | 695 | |
22aeb7f5 JO |
696 | data__for_each_file_new(i, d) { |
697 | struct perf_evlist *evlist = d->session->evlist; | |
698 | struct perf_evsel *evsel; | |
4ea062ed | 699 | struct hists *hists; |
22aeb7f5 JO |
700 | |
701 | evsel = evsel_match(evsel_base, evlist); | |
702 | if (!evsel) | |
703 | continue; | |
704 | ||
4ea062ed ACM |
705 | hists = evsel__hists(evsel); |
706 | d->hists = hists; | |
22aeb7f5 | 707 | |
4ea062ed | 708 | hists__match(hists_base, hists); |
22aeb7f5 JO |
709 | |
710 | if (!show_baseline_only) | |
4ea062ed | 711 | hists__link(hists_base, hists); |
22aeb7f5 | 712 | } |
86a9eee0 | 713 | |
ec308426 | 714 | fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", |
22aeb7f5 | 715 | perf_evsel__name(evsel_base)); |
863e451f | 716 | |
ec308426 | 717 | first = false; |
863e451f | 718 | |
22aeb7f5 | 719 | if (verbose || data__files_cnt > 2) |
1d81c7fc JO |
720 | data__fprintf(); |
721 | ||
4ea062ed | 722 | hists__process(hists_base); |
ec308426 JO |
723 | } |
724 | } | |
863e451f | 725 | |
c818b498 JO |
726 | static void data__free(struct data__file *d) |
727 | { | |
728 | int col; | |
729 | ||
730 | for (col = 0; col < PERF_HPP_DIFF__MAX_INDEX; col++) { | |
731 | struct diff_hpp_fmt *fmt = &d->fmt[col]; | |
732 | ||
74cf249d | 733 | zfree(&fmt->header); |
c818b498 JO |
734 | } |
735 | } | |
736 | ||
ec308426 JO |
737 | static int __cmd_diff(void) |
738 | { | |
739 | struct data__file *d; | |
740 | int ret = -EINVAL, i; | |
741 | ||
742 | data__for_each_file(i, d) { | |
f5fc1412 | 743 | d->session = perf_session__new(&d->file, false, &tool); |
ec308426 | 744 | if (!d->session) { |
f5fc1412 | 745 | pr_err("Failed to open %s\n", d->file.path); |
52e02834 | 746 | ret = -1; |
ec308426 JO |
747 | goto out_delete; |
748 | } | |
863e451f | 749 | |
b7b61cbe | 750 | ret = perf_session__process_events(d->session); |
ec308426 | 751 | if (ret) { |
f5fc1412 | 752 | pr_err("Failed to process %s\n", d->file.path); |
ec308426 JO |
753 | goto out_delete; |
754 | } | |
863e451f | 755 | |
ec308426 JO |
756 | perf_evlist__collapse_resort(d->session->evlist); |
757 | } | |
758 | ||
759 | data_process(); | |
863e451f | 760 | |
ec308426 JO |
761 | out_delete: |
762 | data__for_each_file(i, d) { | |
763 | if (d->session) | |
764 | perf_session__delete(d->session); | |
c818b498 JO |
765 | |
766 | data__free(d); | |
863e451f | 767 | } |
9c443dfd | 768 | |
ec308426 | 769 | free(data__files); |
86a9eee0 ACM |
770 | return ret; |
771 | } | |
772 | ||
0422a4fc | 773 | static const char * const diff_usage[] = { |
86a9eee0 | 774 | "perf diff [<options>] [old_file] [new_file]", |
0422a4fc | 775 | NULL, |
86a9eee0 ACM |
776 | }; |
777 | ||
778 | static const struct option options[] = { | |
c0555642 | 779 | OPT_INCR('v', "verbose", &verbose, |
86a9eee0 | 780 | "be more verbose (show symbol address, etc)"), |
a06d143e JO |
781 | OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, |
782 | "Show only items with match in baseline"), | |
81d5f958 JO |
783 | OPT_CALLBACK('c', "compute", &compute, |
784 | "delta,ratio,wdiff:w1,w2 (default delta)", | |
7aaf6b35 JO |
785 | "Entries differential computation selection", |
786 | setup_compute), | |
61949b21 JO |
787 | OPT_BOOLEAN('p', "period", &show_period, |
788 | "Show period values."), | |
ed279da2 JO |
789 | OPT_BOOLEAN('F', "formula", &show_formula, |
790 | "Show formula."), | |
86a9eee0 ACM |
791 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
792 | "dump raw trace in ASCII"), | |
793 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
6b1f3423 DA |
794 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
795 | "file", "kallsyms pathname"), | |
86a9eee0 ACM |
796 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, |
797 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
c410a338 ACM |
798 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
799 | "only consider symbols in these dsos"), | |
800 | OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
801 | "only consider symbols in these comms"), | |
802 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
803 | "only consider these symbols"), | |
c351c281 | 804 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
805 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
806 | " Please refer the man page for the complete list."), | |
8b8ca6e1 | 807 | OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator", |
c351c281 ACM |
808 | "separator for columns, no spaces will be added between " |
809 | "columns '.' is reserved."), | |
ec5761ea DA |
810 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
811 | "Look for files with symbols relative to this directory"), | |
5f3f8d3b | 812 | OPT_UINTEGER('o', "order", &sort_compute, "Specify compute sorting."), |
8810f6ce NK |
813 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
814 | "How to display percentage of filtered entries", parse_filter_percentage), | |
86a9eee0 ACM |
815 | OPT_END() |
816 | }; | |
817 | ||
345dc0b4 | 818 | static double baseline_percent(struct hist_entry *he) |
1d77822e | 819 | { |
8810f6ce NK |
820 | u64 total = hists__total_period(he->hists); |
821 | ||
822 | return 100.0 * he->stat.period / total; | |
345dc0b4 | 823 | } |
7aaf6b35 | 824 | |
345dc0b4 JO |
825 | static int hpp__color_baseline(struct perf_hpp_fmt *fmt, |
826 | struct perf_hpp *hpp, struct hist_entry *he) | |
827 | { | |
828 | struct diff_hpp_fmt *dfmt = | |
829 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
830 | double percent = baseline_percent(he); | |
831 | char pfmt[20] = " "; | |
832 | ||
833 | if (!he->dummy) { | |
834 | scnprintf(pfmt, 20, "%%%d.2f%%%%", dfmt->header_width - 1); | |
835 | return percent_color_snprintf(hpp->buf, hpp->size, | |
836 | pfmt, percent); | |
837 | } else | |
838 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
839 | dfmt->header_width, pfmt); | |
840 | } | |
841 | ||
842 | static int hpp__entry_baseline(struct hist_entry *he, char *buf, size_t size) | |
843 | { | |
844 | double percent = baseline_percent(he); | |
845 | const char *fmt = symbol_conf.field_sep ? "%.2f" : "%6.2f%%"; | |
846 | int ret = 0; | |
847 | ||
848 | if (!he->dummy) | |
849 | ret = scnprintf(buf, size, fmt, percent); | |
850 | ||
851 | return ret; | |
852 | } | |
853 | ||
01f10bc8 RR |
854 | static int __hpp__color_compare(struct perf_hpp_fmt *fmt, |
855 | struct perf_hpp *hpp, struct hist_entry *he, | |
856 | int comparison_method) | |
857 | { | |
858 | struct diff_hpp_fmt *dfmt = | |
859 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
860 | struct hist_entry *pair = get_pair_fmt(he, dfmt); | |
861 | double diff; | |
a5846e21 | 862 | s64 wdiff; |
01f10bc8 RR |
863 | char pfmt[20] = " "; |
864 | ||
865 | if (!pair) | |
ec3d07cb | 866 | goto no_print; |
01f10bc8 RR |
867 | |
868 | switch (comparison_method) { | |
869 | case COMPUTE_DELTA: | |
870 | if (pair->diff.computed) | |
871 | diff = pair->diff.period_ratio_delta; | |
872 | else | |
873 | diff = compute_delta(he, pair); | |
874 | ||
01f10bc8 RR |
875 | scnprintf(pfmt, 20, "%%%+d.2f%%%%", dfmt->header_width - 1); |
876 | return percent_color_snprintf(hpp->buf, hpp->size, | |
877 | pfmt, diff); | |
1f513b2c RR |
878 | case COMPUTE_RATIO: |
879 | if (he->dummy) | |
880 | goto dummy_print; | |
881 | if (pair->diff.computed) | |
882 | diff = pair->diff.period_ratio; | |
883 | else | |
884 | diff = compute_ratio(he, pair); | |
885 | ||
886 | scnprintf(pfmt, 20, "%%%d.6f", dfmt->header_width); | |
887 | return value_color_snprintf(hpp->buf, hpp->size, | |
888 | pfmt, diff); | |
a5846e21 RR |
889 | case COMPUTE_WEIGHTED_DIFF: |
890 | if (he->dummy) | |
891 | goto dummy_print; | |
892 | if (pair->diff.computed) | |
893 | wdiff = pair->diff.wdiff; | |
894 | else | |
895 | wdiff = compute_wdiff(he, pair); | |
896 | ||
897 | scnprintf(pfmt, 20, "%%14ld", dfmt->header_width); | |
898 | return color_snprintf(hpp->buf, hpp->size, | |
899 | get_percent_color(wdiff), | |
900 | pfmt, wdiff); | |
01f10bc8 RR |
901 | default: |
902 | BUG_ON(1); | |
903 | } | |
904 | dummy_print: | |
ec3d07cb NK |
905 | return scnprintf(hpp->buf, hpp->size, "%*s", |
906 | dfmt->header_width, "N/A"); | |
907 | no_print: | |
01f10bc8 RR |
908 | return scnprintf(hpp->buf, hpp->size, "%*s", |
909 | dfmt->header_width, pfmt); | |
910 | } | |
911 | ||
912 | static int hpp__color_delta(struct perf_hpp_fmt *fmt, | |
913 | struct perf_hpp *hpp, struct hist_entry *he) | |
914 | { | |
915 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_DELTA); | |
916 | } | |
917 | ||
1f513b2c RR |
918 | static int hpp__color_ratio(struct perf_hpp_fmt *fmt, |
919 | struct perf_hpp *hpp, struct hist_entry *he) | |
920 | { | |
921 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_RATIO); | |
922 | } | |
923 | ||
a5846e21 RR |
924 | static int hpp__color_wdiff(struct perf_hpp_fmt *fmt, |
925 | struct perf_hpp *hpp, struct hist_entry *he) | |
926 | { | |
927 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_WEIGHTED_DIFF); | |
928 | } | |
929 | ||
345dc0b4 JO |
930 | static void |
931 | hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size) | |
932 | { | |
933 | switch (idx) { | |
934 | case PERF_HPP_DIFF__PERIOD_BASELINE: | |
935 | scnprintf(buf, size, "%" PRIu64, he->stat.period); | |
7aaf6b35 | 936 | break; |
345dc0b4 JO |
937 | |
938 | default: | |
81d5f958 | 939 | break; |
345dc0b4 JO |
940 | } |
941 | } | |
942 | ||
943 | static void | |
944 | hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair, | |
945 | int idx, char *buf, size_t size) | |
946 | { | |
947 | double diff; | |
948 | double ratio; | |
949 | s64 wdiff; | |
950 | ||
951 | switch (idx) { | |
952 | case PERF_HPP_DIFF__DELTA: | |
953 | if (pair->diff.computed) | |
954 | diff = pair->diff.period_ratio_delta; | |
955 | else | |
ef358e6d | 956 | diff = compute_delta(he, pair); |
345dc0b4 | 957 | |
ec3d07cb | 958 | scnprintf(buf, size, "%+4.2F%%", diff); |
345dc0b4 JO |
959 | break; |
960 | ||
961 | case PERF_HPP_DIFF__RATIO: | |
962 | /* No point for ratio number if we are dummy.. */ | |
ec3d07cb NK |
963 | if (he->dummy) { |
964 | scnprintf(buf, size, "N/A"); | |
345dc0b4 | 965 | break; |
ec3d07cb | 966 | } |
345dc0b4 JO |
967 | |
968 | if (pair->diff.computed) | |
969 | ratio = pair->diff.period_ratio; | |
970 | else | |
ef358e6d | 971 | ratio = compute_ratio(he, pair); |
345dc0b4 JO |
972 | |
973 | if (ratio > 0.0) | |
974 | scnprintf(buf, size, "%14.6F", ratio); | |
975 | break; | |
976 | ||
977 | case PERF_HPP_DIFF__WEIGHTED_DIFF: | |
978 | /* No point for wdiff number if we are dummy.. */ | |
ec3d07cb NK |
979 | if (he->dummy) { |
980 | scnprintf(buf, size, "N/A"); | |
345dc0b4 | 981 | break; |
ec3d07cb | 982 | } |
345dc0b4 JO |
983 | |
984 | if (pair->diff.computed) | |
985 | wdiff = pair->diff.wdiff; | |
986 | else | |
ef358e6d | 987 | wdiff = compute_wdiff(he, pair); |
345dc0b4 JO |
988 | |
989 | if (wdiff != 0) | |
990 | scnprintf(buf, size, "%14ld", wdiff); | |
991 | break; | |
992 | ||
993 | case PERF_HPP_DIFF__FORMULA: | |
ef358e6d | 994 | formula_fprintf(he, pair, buf, size); |
7aaf6b35 | 995 | break; |
345dc0b4 JO |
996 | |
997 | case PERF_HPP_DIFF__PERIOD: | |
998 | scnprintf(buf, size, "%" PRIu64, pair->stat.period); | |
999 | break; | |
1000 | ||
7aaf6b35 JO |
1001 | default: |
1002 | BUG_ON(1); | |
1003 | }; | |
345dc0b4 JO |
1004 | } |
1005 | ||
1006 | static void | |
22aeb7f5 JO |
1007 | __hpp__entry_global(struct hist_entry *he, struct diff_hpp_fmt *dfmt, |
1008 | char *buf, size_t size) | |
345dc0b4 | 1009 | { |
5f3f8d3b | 1010 | struct hist_entry *pair = get_pair_fmt(he, dfmt); |
22aeb7f5 | 1011 | int idx = dfmt->idx; |
345dc0b4 JO |
1012 | |
1013 | /* baseline is special */ | |
1014 | if (idx == PERF_HPP_DIFF__BASELINE) | |
1015 | hpp__entry_baseline(he, buf, size); | |
1016 | else { | |
1017 | if (pair) | |
1018 | hpp__entry_pair(he, pair, idx, buf, size); | |
1019 | else | |
1020 | hpp__entry_unpair(he, idx, buf, size); | |
1021 | } | |
1022 | } | |
1023 | ||
1024 | static int hpp__entry_global(struct perf_hpp_fmt *_fmt, struct perf_hpp *hpp, | |
1025 | struct hist_entry *he) | |
1026 | { | |
1027 | struct diff_hpp_fmt *dfmt = | |
1028 | container_of(_fmt, struct diff_hpp_fmt, fmt); | |
1029 | char buf[MAX_COL_WIDTH] = " "; | |
1030 | ||
22aeb7f5 | 1031 | __hpp__entry_global(he, dfmt, buf, MAX_COL_WIDTH); |
345dc0b4 JO |
1032 | |
1033 | if (symbol_conf.field_sep) | |
1034 | return scnprintf(hpp->buf, hpp->size, "%s", buf); | |
1035 | else | |
1036 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
1037 | dfmt->header_width, buf); | |
1038 | } | |
1039 | ||
94a0793d NK |
1040 | static int hpp__header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, |
1041 | struct perf_evsel *evsel __maybe_unused) | |
345dc0b4 JO |
1042 | { |
1043 | struct diff_hpp_fmt *dfmt = | |
1044 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1045 | ||
1046 | BUG_ON(!dfmt->header); | |
1047 | return scnprintf(hpp->buf, hpp->size, dfmt->header); | |
1048 | } | |
1049 | ||
1050 | static int hpp__width(struct perf_hpp_fmt *fmt, | |
94a0793d NK |
1051 | struct perf_hpp *hpp __maybe_unused, |
1052 | struct perf_evsel *evsel __maybe_unused) | |
345dc0b4 JO |
1053 | { |
1054 | struct diff_hpp_fmt *dfmt = | |
1055 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1056 | ||
1057 | BUG_ON(dfmt->header_width <= 0); | |
1058 | return dfmt->header_width; | |
1059 | } | |
1060 | ||
22aeb7f5 | 1061 | static void init_header(struct data__file *d, struct diff_hpp_fmt *dfmt) |
345dc0b4 JO |
1062 | { |
1063 | #define MAX_HEADER_NAME 100 | |
1064 | char buf_indent[MAX_HEADER_NAME]; | |
1065 | char buf[MAX_HEADER_NAME]; | |
1066 | const char *header = NULL; | |
1067 | int width = 0; | |
1068 | ||
1069 | BUG_ON(dfmt->idx >= PERF_HPP_DIFF__MAX_INDEX); | |
1070 | header = columns[dfmt->idx].name; | |
1071 | width = columns[dfmt->idx].width; | |
1072 | ||
1073 | /* Only our defined HPP fmts should appear here. */ | |
1074 | BUG_ON(!header); | |
1075 | ||
22aeb7f5 JO |
1076 | if (data__files_cnt > 2) |
1077 | scnprintf(buf, MAX_HEADER_NAME, "%s/%d", header, d->idx); | |
1078 | ||
345dc0b4 JO |
1079 | #define NAME (data__files_cnt > 2 ? buf : header) |
1080 | dfmt->header_width = width; | |
1081 | width = (int) strlen(NAME); | |
1082 | if (dfmt->header_width < width) | |
1083 | dfmt->header_width = width; | |
1084 | ||
1085 | scnprintf(buf_indent, MAX_HEADER_NAME, "%*s", | |
1086 | dfmt->header_width, NAME); | |
1087 | ||
1088 | dfmt->header = strdup(buf_indent); | |
1089 | #undef MAX_HEADER_NAME | |
1090 | #undef NAME | |
1091 | } | |
1092 | ||
c818b498 | 1093 | static void data__hpp_register(struct data__file *d, int idx) |
345dc0b4 | 1094 | { |
c818b498 JO |
1095 | struct diff_hpp_fmt *dfmt = &d->fmt[idx]; |
1096 | struct perf_hpp_fmt *fmt = &dfmt->fmt; | |
1097 | ||
1098 | dfmt->idx = idx; | |
1099 | ||
1100 | fmt->header = hpp__header; | |
1101 | fmt->width = hpp__width; | |
1102 | fmt->entry = hpp__entry_global; | |
e7024fc3 NK |
1103 | fmt->cmp = hist_entry__cmp_nop; |
1104 | fmt->collapse = hist_entry__cmp_nop; | |
c818b498 JO |
1105 | |
1106 | /* TODO more colors */ | |
01f10bc8 RR |
1107 | switch (idx) { |
1108 | case PERF_HPP_DIFF__BASELINE: | |
c818b498 | 1109 | fmt->color = hpp__color_baseline; |
e7024fc3 | 1110 | fmt->sort = hist_entry__cmp_baseline; |
01f10bc8 RR |
1111 | break; |
1112 | case PERF_HPP_DIFF__DELTA: | |
1113 | fmt->color = hpp__color_delta; | |
e7024fc3 | 1114 | fmt->sort = hist_entry__cmp_delta; |
01f10bc8 | 1115 | break; |
1f513b2c RR |
1116 | case PERF_HPP_DIFF__RATIO: |
1117 | fmt->color = hpp__color_ratio; | |
e7024fc3 | 1118 | fmt->sort = hist_entry__cmp_ratio; |
1f513b2c | 1119 | break; |
a5846e21 RR |
1120 | case PERF_HPP_DIFF__WEIGHTED_DIFF: |
1121 | fmt->color = hpp__color_wdiff; | |
e7024fc3 | 1122 | fmt->sort = hist_entry__cmp_wdiff; |
a5846e21 | 1123 | break; |
01f10bc8 | 1124 | default: |
e7024fc3 | 1125 | fmt->sort = hist_entry__cmp_nop; |
01f10bc8 RR |
1126 | break; |
1127 | } | |
345dc0b4 | 1128 | |
22aeb7f5 | 1129 | init_header(d, dfmt); |
c818b498 | 1130 | perf_hpp__column_register(fmt); |
e7024fc3 | 1131 | perf_hpp__register_sort_field(fmt); |
345dc0b4 JO |
1132 | } |
1133 | ||
566b5cfb | 1134 | static int ui_init(void) |
345dc0b4 | 1135 | { |
c818b498 | 1136 | struct data__file *d; |
566b5cfb | 1137 | struct perf_hpp_fmt *fmt; |
c818b498 JO |
1138 | int i; |
1139 | ||
1140 | data__for_each_file(i, d) { | |
1141 | ||
1142 | /* | |
1143 | * Baseline or compute realted columns: | |
1144 | * | |
1145 | * PERF_HPP_DIFF__BASELINE | |
1146 | * PERF_HPP_DIFF__DELTA | |
1147 | * PERF_HPP_DIFF__RATIO | |
1148 | * PERF_HPP_DIFF__WEIGHTED_DIFF | |
1149 | */ | |
1150 | data__hpp_register(d, i ? compute_2_hpp[compute] : | |
1151 | PERF_HPP_DIFF__BASELINE); | |
1d77822e | 1152 | |
c818b498 JO |
1153 | /* |
1154 | * And the rest: | |
1155 | * | |
1156 | * PERF_HPP_DIFF__FORMULA | |
1157 | * PERF_HPP_DIFF__PERIOD | |
1158 | * PERF_HPP_DIFF__PERIOD_BASELINE | |
1159 | */ | |
1160 | if (show_formula && i) | |
1161 | data__hpp_register(d, PERF_HPP_DIFF__FORMULA); | |
ed279da2 | 1162 | |
c818b498 JO |
1163 | if (show_period) |
1164 | data__hpp_register(d, i ? PERF_HPP_DIFF__PERIOD : | |
1165 | PERF_HPP_DIFF__PERIOD_BASELINE); | |
61949b21 | 1166 | } |
566b5cfb NK |
1167 | |
1168 | if (!sort_compute) | |
1169 | return 0; | |
1170 | ||
1171 | /* | |
1172 | * Prepend an fmt to sort on columns at 'sort_compute' first. | |
1173 | * This fmt is added only to the sort list but not to the | |
1174 | * output fields list. | |
1175 | * | |
1176 | * Note that this column (data) can be compared twice - one | |
1177 | * for this 'sort_compute' fmt and another for the normal | |
1178 | * diff_hpp_fmt. But it shouldn't a problem as most entries | |
1179 | * will be sorted out by first try or baseline and comparing | |
1180 | * is not a costly operation. | |
1181 | */ | |
1182 | fmt = zalloc(sizeof(*fmt)); | |
1183 | if (fmt == NULL) { | |
1184 | pr_err("Memory allocation failed\n"); | |
1185 | return -1; | |
1186 | } | |
1187 | ||
1188 | fmt->cmp = hist_entry__cmp_nop; | |
1189 | fmt->collapse = hist_entry__cmp_nop; | |
1190 | ||
1191 | switch (compute) { | |
1192 | case COMPUTE_DELTA: | |
1193 | fmt->sort = hist_entry__cmp_delta_idx; | |
1194 | break; | |
1195 | case COMPUTE_RATIO: | |
1196 | fmt->sort = hist_entry__cmp_ratio_idx; | |
1197 | break; | |
1198 | case COMPUTE_WEIGHTED_DIFF: | |
1199 | fmt->sort = hist_entry__cmp_wdiff_idx; | |
1200 | break; | |
1201 | default: | |
1202 | BUG_ON(1); | |
1203 | } | |
1204 | ||
1205 | list_add(&fmt->sort_list, &perf_hpp__sort_list); | |
1206 | return 0; | |
1d77822e JO |
1207 | } |
1208 | ||
ec308426 | 1209 | static int data_init(int argc, const char **argv) |
86a9eee0 | 1210 | { |
ec308426 JO |
1211 | struct data__file *d; |
1212 | static const char *defaults[] = { | |
1213 | "perf.data.old", | |
1214 | "perf.data", | |
1215 | }; | |
22aeb7f5 | 1216 | bool use_default = true; |
ec308426 JO |
1217 | int i; |
1218 | ||
1219 | data__files_cnt = 2; | |
1220 | ||
86a9eee0 | 1221 | if (argc) { |
22aeb7f5 | 1222 | if (argc == 1) |
ec308426 | 1223 | defaults[1] = argv[0]; |
22aeb7f5 JO |
1224 | else { |
1225 | data__files_cnt = argc; | |
1226 | use_default = false; | |
1227 | } | |
d8d9608f | 1228 | } else if (perf_guest) { |
ec308426 JO |
1229 | defaults[0] = "perf.data.host"; |
1230 | defaults[1] = "perf.data.guest"; | |
86a9eee0 ACM |
1231 | } |
1232 | ||
5f3f8d3b JO |
1233 | if (sort_compute >= (unsigned int) data__files_cnt) { |
1234 | pr_err("Order option out of limit.\n"); | |
1235 | return -EINVAL; | |
1236 | } | |
1237 | ||
ec308426 JO |
1238 | data__files = zalloc(sizeof(*data__files) * data__files_cnt); |
1239 | if (!data__files) | |
1240 | return -ENOMEM; | |
1241 | ||
1242 | data__for_each_file(i, d) { | |
f5fc1412 JO |
1243 | struct perf_data_file *file = &d->file; |
1244 | ||
1245 | file->path = use_default ? defaults[i] : argv[i]; | |
1246 | file->mode = PERF_DATA_MODE_READ, | |
1247 | file->force = force, | |
1248 | ||
ec308426 JO |
1249 | d->idx = i; |
1250 | } | |
1251 | ||
1252 | return 0; | |
1253 | } | |
1254 | ||
1255 | int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused) | |
1256 | { | |
9ab1f508 KL |
1257 | int ret = hists__init(); |
1258 | ||
1259 | if (ret < 0) | |
1260 | return ret; | |
1261 | ||
0b93da17 NK |
1262 | perf_config(perf_default_config, NULL); |
1263 | ||
ec308426 JO |
1264 | argc = parse_options(argc, argv, options, diff_usage, 0); |
1265 | ||
0a7e6d1b | 1266 | if (symbol__init(NULL) < 0) |
655000e7 ACM |
1267 | return -1; |
1268 | ||
ec308426 JO |
1269 | if (data_init(argc, argv) < 0) |
1270 | return -1; | |
1271 | ||
566b5cfb NK |
1272 | if (ui_init() < 0) |
1273 | return -1; | |
1d77822e | 1274 | |
512ae1bd NK |
1275 | sort__mode = SORT_MODE__DIFF; |
1276 | ||
55309985 NK |
1277 | if (setup_sorting() < 0) |
1278 | usage_with_options(diff_usage, options); | |
1279 | ||
86a9eee0 | 1280 | setup_pager(); |
c351c281 | 1281 | |
08e71542 | 1282 | sort__setup_elide(NULL); |
c351c281 | 1283 | |
86a9eee0 ACM |
1284 | return __cmd_diff(); |
1285 | } |