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" |
d49dd15d | 20 | #include "util/config.h" |
86a9eee0 ACM |
21 | |
22 | #include <stdlib.h> | |
345dc0b4 JO |
23 | #include <math.h> |
24 | ||
25 | /* Diff command specific HPP columns. */ | |
26 | enum { | |
27 | PERF_HPP_DIFF__BASELINE, | |
28 | PERF_HPP_DIFF__PERIOD, | |
29 | PERF_HPP_DIFF__PERIOD_BASELINE, | |
30 | PERF_HPP_DIFF__DELTA, | |
31 | PERF_HPP_DIFF__RATIO, | |
32 | PERF_HPP_DIFF__WEIGHTED_DIFF, | |
33 | PERF_HPP_DIFF__FORMULA, | |
a1668c25 | 34 | PERF_HPP_DIFF__DELTA_ABS, |
345dc0b4 JO |
35 | |
36 | PERF_HPP_DIFF__MAX_INDEX | |
37 | }; | |
38 | ||
39 | struct diff_hpp_fmt { | |
40 | struct perf_hpp_fmt fmt; | |
41 | int idx; | |
42 | char *header; | |
43 | int header_width; | |
44 | }; | |
86a9eee0 | 45 | |
ec308426 JO |
46 | struct data__file { |
47 | struct perf_session *session; | |
f5fc1412 | 48 | struct perf_data_file file; |
ec308426 | 49 | int idx; |
22aeb7f5 | 50 | struct hists *hists; |
c818b498 | 51 | struct diff_hpp_fmt fmt[PERF_HPP_DIFF__MAX_INDEX]; |
ec308426 JO |
52 | }; |
53 | ||
54 | static struct data__file *data__files; | |
55 | static int data__files_cnt; | |
56 | ||
57 | #define data__for_each_file_start(i, d, s) \ | |
58 | for (i = s, d = &data__files[s]; \ | |
59 | i < data__files_cnt; \ | |
60 | i++, d = &data__files[i]) | |
61 | ||
62 | #define data__for_each_file(i, d) data__for_each_file_start(i, d, 0) | |
22aeb7f5 | 63 | #define data__for_each_file_new(i, d) data__for_each_file_start(i, d, 1) |
ec308426 | 64 | |
ec308426 | 65 | static bool force; |
61949b21 | 66 | static bool show_period; |
ed279da2 | 67 | static bool show_formula; |
a06d143e | 68 | static bool show_baseline_only; |
be57b3fd | 69 | static unsigned int sort_compute = 1; |
86a9eee0 | 70 | |
81d5f958 JO |
71 | static s64 compute_wdiff_w1; |
72 | static s64 compute_wdiff_w2; | |
73 | ||
7aaf6b35 JO |
74 | enum { |
75 | COMPUTE_DELTA, | |
76 | COMPUTE_RATIO, | |
81d5f958 | 77 | COMPUTE_WEIGHTED_DIFF, |
a1668c25 | 78 | COMPUTE_DELTA_ABS, |
7aaf6b35 JO |
79 | COMPUTE_MAX, |
80 | }; | |
81 | ||
82 | const char *compute_names[COMPUTE_MAX] = { | |
83 | [COMPUTE_DELTA] = "delta", | |
a1668c25 | 84 | [COMPUTE_DELTA_ABS] = "delta-abs", |
7aaf6b35 | 85 | [COMPUTE_RATIO] = "ratio", |
81d5f958 | 86 | [COMPUTE_WEIGHTED_DIFF] = "wdiff", |
7aaf6b35 JO |
87 | }; |
88 | ||
be57b3fd | 89 | static int compute = COMPUTE_DELTA_ABS; |
7aaf6b35 | 90 | |
345dc0b4 JO |
91 | static int compute_2_hpp[COMPUTE_MAX] = { |
92 | [COMPUTE_DELTA] = PERF_HPP_DIFF__DELTA, | |
a1668c25 | 93 | [COMPUTE_DELTA_ABS] = PERF_HPP_DIFF__DELTA_ABS, |
345dc0b4 JO |
94 | [COMPUTE_RATIO] = PERF_HPP_DIFF__RATIO, |
95 | [COMPUTE_WEIGHTED_DIFF] = PERF_HPP_DIFF__WEIGHTED_DIFF, | |
96 | }; | |
97 | ||
98 | #define MAX_COL_WIDTH 70 | |
99 | ||
100 | static struct header_column { | |
101 | const char *name; | |
102 | int width; | |
103 | } columns[PERF_HPP_DIFF__MAX_INDEX] = { | |
104 | [PERF_HPP_DIFF__BASELINE] = { | |
105 | .name = "Baseline", | |
106 | }, | |
107 | [PERF_HPP_DIFF__PERIOD] = { | |
108 | .name = "Period", | |
109 | .width = 14, | |
110 | }, | |
111 | [PERF_HPP_DIFF__PERIOD_BASELINE] = { | |
112 | .name = "Base period", | |
113 | .width = 14, | |
114 | }, | |
115 | [PERF_HPP_DIFF__DELTA] = { | |
116 | .name = "Delta", | |
117 | .width = 7, | |
118 | }, | |
a1668c25 NK |
119 | [PERF_HPP_DIFF__DELTA_ABS] = { |
120 | .name = "Delta Abs", | |
121 | .width = 7, | |
122 | }, | |
345dc0b4 JO |
123 | [PERF_HPP_DIFF__RATIO] = { |
124 | .name = "Ratio", | |
125 | .width = 14, | |
126 | }, | |
127 | [PERF_HPP_DIFF__WEIGHTED_DIFF] = { | |
128 | .name = "Weighted diff", | |
129 | .width = 14, | |
130 | }, | |
131 | [PERF_HPP_DIFF__FORMULA] = { | |
132 | .name = "Formula", | |
133 | .width = MAX_COL_WIDTH, | |
134 | } | |
135 | }; | |
136 | ||
81d5f958 JO |
137 | static int setup_compute_opt_wdiff(char *opt) |
138 | { | |
139 | char *w1_str = opt; | |
140 | char *w2_str; | |
141 | ||
142 | int ret = -EINVAL; | |
143 | ||
144 | if (!opt) | |
145 | goto out; | |
146 | ||
147 | w2_str = strchr(opt, ','); | |
148 | if (!w2_str) | |
149 | goto out; | |
150 | ||
151 | *w2_str++ = 0x0; | |
152 | if (!*w2_str) | |
153 | goto out; | |
154 | ||
155 | compute_wdiff_w1 = strtol(w1_str, NULL, 10); | |
156 | compute_wdiff_w2 = strtol(w2_str, NULL, 10); | |
157 | ||
158 | if (!compute_wdiff_w1 || !compute_wdiff_w2) | |
159 | goto out; | |
160 | ||
161 | pr_debug("compute wdiff w1(%" PRId64 ") w2(%" PRId64 ")\n", | |
162 | compute_wdiff_w1, compute_wdiff_w2); | |
163 | ||
164 | ret = 0; | |
165 | ||
166 | out: | |
167 | if (ret) | |
168 | pr_err("Failed: wrong weight data, use 'wdiff:w1,w2'\n"); | |
169 | ||
170 | return ret; | |
171 | } | |
172 | ||
173 | static int setup_compute_opt(char *opt) | |
174 | { | |
175 | if (compute == COMPUTE_WEIGHTED_DIFF) | |
176 | return setup_compute_opt_wdiff(opt); | |
177 | ||
178 | if (opt) { | |
179 | pr_err("Failed: extra option specified '%s'", opt); | |
180 | return -EINVAL; | |
181 | } | |
182 | ||
183 | return 0; | |
184 | } | |
185 | ||
7aaf6b35 JO |
186 | static int setup_compute(const struct option *opt, const char *str, |
187 | int unset __maybe_unused) | |
188 | { | |
189 | int *cp = (int *) opt->value; | |
81d5f958 JO |
190 | char *cstr = (char *) str; |
191 | char buf[50]; | |
7aaf6b35 | 192 | unsigned i; |
81d5f958 | 193 | char *option; |
7aaf6b35 JO |
194 | |
195 | if (!str) { | |
196 | *cp = COMPUTE_DELTA; | |
197 | return 0; | |
198 | } | |
199 | ||
81d5f958 JO |
200 | option = strchr(str, ':'); |
201 | if (option) { | |
202 | unsigned len = option++ - str; | |
203 | ||
204 | /* | |
205 | * The str data are not writeable, so we need | |
206 | * to use another buffer. | |
207 | */ | |
208 | ||
209 | /* No option value is longer. */ | |
210 | if (len >= sizeof(buf)) | |
211 | return -EINVAL; | |
212 | ||
213 | strncpy(buf, str, len); | |
214 | buf[len] = 0x0; | |
215 | cstr = buf; | |
216 | } | |
217 | ||
7aaf6b35 | 218 | for (i = 0; i < COMPUTE_MAX; i++) |
81d5f958 | 219 | if (!strcmp(cstr, compute_names[i])) { |
7aaf6b35 | 220 | *cp = i; |
81d5f958 | 221 | return setup_compute_opt(option); |
7aaf6b35 JO |
222 | } |
223 | ||
224 | pr_err("Failed: '%s' is not computation method " | |
81d5f958 | 225 | "(use 'delta','ratio' or 'wdiff')\n", str); |
7aaf6b35 JO |
226 | return -EINVAL; |
227 | } | |
228 | ||
ef358e6d | 229 | static double period_percent(struct hist_entry *he, u64 period) |
96c47f19 | 230 | { |
8810f6ce NK |
231 | u64 total = hists__total_period(he->hists); |
232 | ||
96c47f19 JO |
233 | return (period * 100.0) / total; |
234 | } | |
235 | ||
ef358e6d | 236 | static double compute_delta(struct hist_entry *he, struct hist_entry *pair) |
96c47f19 | 237 | { |
ef358e6d JO |
238 | double old_percent = period_percent(he, he->stat.period); |
239 | double new_percent = period_percent(pair, pair->stat.period); | |
96c47f19 | 240 | |
9af303e2 JO |
241 | pair->diff.period_ratio_delta = new_percent - old_percent; |
242 | pair->diff.computed = true; | |
243 | return pair->diff.period_ratio_delta; | |
96c47f19 JO |
244 | } |
245 | ||
ef358e6d | 246 | static double compute_ratio(struct hist_entry *he, struct hist_entry *pair) |
96c47f19 | 247 | { |
9af303e2 JO |
248 | double old_period = he->stat.period ?: 1; |
249 | double new_period = pair->stat.period; | |
96c47f19 | 250 | |
9af303e2 JO |
251 | pair->diff.computed = true; |
252 | pair->diff.period_ratio = new_period / old_period; | |
253 | return pair->diff.period_ratio; | |
96c47f19 JO |
254 | } |
255 | ||
ef358e6d | 256 | static s64 compute_wdiff(struct hist_entry *he, struct hist_entry *pair) |
81d5f958 | 257 | { |
9af303e2 JO |
258 | u64 old_period = he->stat.period; |
259 | u64 new_period = pair->stat.period; | |
81d5f958 | 260 | |
9af303e2 JO |
261 | pair->diff.computed = true; |
262 | pair->diff.wdiff = new_period * compute_wdiff_w2 - | |
263 | old_period * compute_wdiff_w1; | |
81d5f958 | 264 | |
9af303e2 | 265 | return pair->diff.wdiff; |
81d5f958 JO |
266 | } |
267 | ||
f4c8bae1 JO |
268 | static int formula_delta(struct hist_entry *he, struct hist_entry *pair, |
269 | char *buf, size_t size) | |
ed279da2 | 270 | { |
8810f6ce NK |
271 | u64 he_total = he->hists->stats.total_period; |
272 | u64 pair_total = pair->hists->stats.total_period; | |
273 | ||
274 | if (symbol_conf.filter_relative) { | |
275 | he_total = he->hists->stats.total_non_filtered_period; | |
276 | pair_total = pair->hists->stats.total_non_filtered_period; | |
277 | } | |
ed279da2 JO |
278 | return scnprintf(buf, size, |
279 | "(%" PRIu64 " * 100 / %" PRIu64 ") - " | |
280 | "(%" PRIu64 " * 100 / %" PRIu64 ")", | |
8810f6ce NK |
281 | pair->stat.period, pair_total, |
282 | he->stat.period, he_total); | |
ed279da2 JO |
283 | } |
284 | ||
f4c8bae1 JO |
285 | static int formula_ratio(struct hist_entry *he, struct hist_entry *pair, |
286 | char *buf, size_t size) | |
ed279da2 | 287 | { |
9af303e2 JO |
288 | double old_period = he->stat.period; |
289 | double new_period = pair->stat.period; | |
ed279da2 JO |
290 | |
291 | return scnprintf(buf, size, "%.0F / %.0F", new_period, old_period); | |
292 | } | |
293 | ||
f4c8bae1 JO |
294 | static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair, |
295 | char *buf, size_t size) | |
ed279da2 | 296 | { |
9af303e2 JO |
297 | u64 old_period = he->stat.period; |
298 | u64 new_period = pair->stat.period; | |
ed279da2 JO |
299 | |
300 | return scnprintf(buf, size, | |
301 | "(%" PRIu64 " * " "%" PRId64 ") - (%" PRIu64 " * " "%" PRId64 ")", | |
302 | new_period, compute_wdiff_w2, old_period, compute_wdiff_w1); | |
303 | } | |
304 | ||
ef358e6d JO |
305 | static int formula_fprintf(struct hist_entry *he, struct hist_entry *pair, |
306 | char *buf, size_t size) | |
ed279da2 JO |
307 | { |
308 | switch (compute) { | |
309 | case COMPUTE_DELTA: | |
a1668c25 | 310 | case COMPUTE_DELTA_ABS: |
f4c8bae1 | 311 | return formula_delta(he, pair, buf, size); |
ed279da2 | 312 | case COMPUTE_RATIO: |
f4c8bae1 | 313 | return formula_ratio(he, pair, buf, size); |
ed279da2 | 314 | case COMPUTE_WEIGHTED_DIFF: |
f4c8bae1 | 315 | return formula_wdiff(he, pair, buf, size); |
ed279da2 JO |
316 | default: |
317 | BUG_ON(1); | |
318 | } | |
319 | ||
320 | return -1; | |
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); |
b91fc39f | 331 | int ret = -1; |
86a9eee0 | 332 | |
bb3eb566 | 333 | if (machine__resolve(machine, &al, sample) < 0) { |
86a9eee0 ACM |
334 | pr_warning("problem processing %d event, skipping it.\n", |
335 | event->header.type); | |
336 | return -1; | |
337 | } | |
338 | ||
0102ef3e | 339 | if (!hists__add_entry(hists, &al, NULL, NULL, NULL, sample, true)) { |
c82ee828 | 340 | pr_warning("problem incrementing symbol period, skipping event\n"); |
b91fc39f | 341 | goto out_put; |
86a9eee0 ACM |
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; |
b91fc39f ACM |
353 | ret = 0; |
354 | out_put: | |
355 | addr_location__put(&al); | |
356 | return ret; | |
86a9eee0 ACM |
357 | } |
358 | ||
863e451f JO |
359 | static struct perf_tool tool = { |
360 | .sample = diff__process_sample_event, | |
361 | .mmap = perf_event__process_mmap, | |
68ca9d65 | 362 | .mmap2 = perf_event__process_mmap2, |
863e451f | 363 | .comm = perf_event__process_comm, |
f62d3f0f ACM |
364 | .exit = perf_event__process_exit, |
365 | .fork = perf_event__process_fork, | |
863e451f | 366 | .lost = perf_event__process_lost, |
0a8cb85c | 367 | .ordered_events = true, |
863e451f | 368 | .ordering_requires_timestamps = true, |
86a9eee0 ACM |
369 | }; |
370 | ||
863e451f JO |
371 | static struct perf_evsel *evsel_match(struct perf_evsel *evsel, |
372 | struct perf_evlist *evlist) | |
373 | { | |
374 | struct perf_evsel *e; | |
375 | ||
e5cadb93 | 376 | evlist__for_each_entry(evlist, e) { |
863e451f JO |
377 | if (perf_evsel__match2(evsel, e)) |
378 | return e; | |
0050f7aa | 379 | } |
863e451f JO |
380 | |
381 | return NULL; | |
382 | } | |
383 | ||
ce74f60e | 384 | static void perf_evlist__collapse_resort(struct perf_evlist *evlist) |
dd464345 JO |
385 | { |
386 | struct perf_evsel *evsel; | |
387 | ||
e5cadb93 | 388 | evlist__for_each_entry(evlist, evsel) { |
4ea062ed | 389 | struct hists *hists = evsel__hists(evsel); |
dd464345 | 390 | |
c1fb5651 | 391 | hists__collapse_resort(hists, NULL); |
dd464345 JO |
392 | } |
393 | } | |
394 | ||
ff21cef6 NK |
395 | static struct data__file *fmt_to_data_file(struct perf_hpp_fmt *fmt) |
396 | { | |
397 | struct diff_hpp_fmt *dfmt = container_of(fmt, struct diff_hpp_fmt, fmt); | |
398 | void *ptr = dfmt - dfmt->idx; | |
399 | struct data__file *d = container_of(ptr, struct data__file, fmt); | |
400 | ||
401 | return d; | |
402 | } | |
403 | ||
5f3f8d3b JO |
404 | static struct hist_entry* |
405 | get_pair_data(struct hist_entry *he, struct data__file *d) | |
406 | { | |
407 | if (hist_entry__has_pairs(he)) { | |
408 | struct hist_entry *pair; | |
409 | ||
410 | list_for_each_entry(pair, &he->pairs.head, pairs.node) | |
411 | if (pair->hists == d->hists) | |
412 | return pair; | |
413 | } | |
414 | ||
415 | return NULL; | |
416 | } | |
417 | ||
418 | static struct hist_entry* | |
419 | get_pair_fmt(struct hist_entry *he, struct diff_hpp_fmt *dfmt) | |
420 | { | |
ff21cef6 | 421 | struct data__file *d = fmt_to_data_file(&dfmt->fmt); |
5f3f8d3b JO |
422 | |
423 | return get_pair_data(he, d); | |
424 | } | |
425 | ||
a06d143e JO |
426 | static void hists__baseline_only(struct hists *hists) |
427 | { | |
ce74f60e NK |
428 | struct rb_root *root; |
429 | struct rb_node *next; | |
430 | ||
52225036 | 431 | if (hists__has(hists, need_collapse)) |
ce74f60e NK |
432 | root = &hists->entries_collapsed; |
433 | else | |
434 | root = hists->entries_in; | |
a06d143e | 435 | |
ce74f60e | 436 | next = rb_first(root); |
a06d143e | 437 | while (next != NULL) { |
ce74f60e | 438 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in); |
a06d143e | 439 | |
ce74f60e | 440 | next = rb_next(&he->rb_node_in); |
b821c732 | 441 | if (!hist_entry__next_pair(he)) { |
ce74f60e | 442 | rb_erase(&he->rb_node_in, root); |
6733d1bf | 443 | hist_entry__delete(he); |
a06d143e JO |
444 | } |
445 | } | |
446 | } | |
447 | ||
96c47f19 JO |
448 | static void hists__precompute(struct hists *hists) |
449 | { | |
367c53c0 JO |
450 | struct rb_root *root; |
451 | struct rb_node *next; | |
452 | ||
52225036 | 453 | if (hists__has(hists, need_collapse)) |
367c53c0 JO |
454 | root = &hists->entries_collapsed; |
455 | else | |
456 | root = hists->entries_in; | |
96c47f19 | 457 | |
367c53c0 | 458 | next = rb_first(root); |
96c47f19 | 459 | while (next != NULL) { |
5f3f8d3b | 460 | struct hist_entry *he, *pair; |
56495a8a NK |
461 | struct data__file *d; |
462 | int i; | |
96c47f19 | 463 | |
5f3f8d3b | 464 | he = rb_entry(next, struct hist_entry, rb_node_in); |
367c53c0 | 465 | next = rb_next(&he->rb_node_in); |
5f3f8d3b | 466 | |
56495a8a NK |
467 | data__for_each_file_new(i, d) { |
468 | pair = get_pair_data(he, d); | |
469 | if (!pair) | |
470 | continue; | |
471 | ||
472 | switch (compute) { | |
473 | case COMPUTE_DELTA: | |
a1668c25 | 474 | case COMPUTE_DELTA_ABS: |
56495a8a NK |
475 | compute_delta(he, pair); |
476 | break; | |
477 | case COMPUTE_RATIO: | |
478 | compute_ratio(he, pair); | |
479 | break; | |
480 | case COMPUTE_WEIGHTED_DIFF: | |
481 | compute_wdiff(he, pair); | |
482 | break; | |
483 | default: | |
484 | BUG_ON(1); | |
485 | } | |
96c47f19 JO |
486 | } |
487 | } | |
488 | } | |
489 | ||
490 | static int64_t cmp_doubles(double l, double r) | |
491 | { | |
492 | if (l > r) | |
493 | return -1; | |
494 | else if (l < r) | |
495 | return 1; | |
496 | else | |
497 | return 0; | |
498 | } | |
499 | ||
500 | static int64_t | |
5f3f8d3b | 501 | __hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, |
96c47f19 JO |
502 | int c) |
503 | { | |
504 | switch (c) { | |
505 | case COMPUTE_DELTA: | |
506 | { | |
507 | double l = left->diff.period_ratio_delta; | |
508 | double r = right->diff.period_ratio_delta; | |
509 | ||
510 | return cmp_doubles(l, r); | |
511 | } | |
a1668c25 NK |
512 | case COMPUTE_DELTA_ABS: |
513 | { | |
514 | double l = fabs(left->diff.period_ratio_delta); | |
515 | double r = fabs(right->diff.period_ratio_delta); | |
516 | ||
517 | return cmp_doubles(l, r); | |
518 | } | |
96c47f19 JO |
519 | case COMPUTE_RATIO: |
520 | { | |
521 | double l = left->diff.period_ratio; | |
522 | double r = right->diff.period_ratio; | |
523 | ||
524 | return cmp_doubles(l, r); | |
525 | } | |
81d5f958 JO |
526 | case COMPUTE_WEIGHTED_DIFF: |
527 | { | |
528 | s64 l = left->diff.wdiff; | |
529 | s64 r = right->diff.wdiff; | |
530 | ||
531 | return r - l; | |
532 | } | |
96c47f19 JO |
533 | default: |
534 | BUG_ON(1); | |
535 | } | |
536 | ||
537 | return 0; | |
538 | } | |
539 | ||
5f3f8d3b JO |
540 | static int64_t |
541 | hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, | |
56495a8a | 542 | int c, int sort_idx) |
5f3f8d3b JO |
543 | { |
544 | bool pairs_left = hist_entry__has_pairs(left); | |
545 | bool pairs_right = hist_entry__has_pairs(right); | |
546 | struct hist_entry *p_right, *p_left; | |
547 | ||
548 | if (!pairs_left && !pairs_right) | |
549 | return 0; | |
550 | ||
551 | if (!pairs_left || !pairs_right) | |
552 | return pairs_left ? -1 : 1; | |
553 | ||
56495a8a NK |
554 | p_left = get_pair_data(left, &data__files[sort_idx]); |
555 | p_right = get_pair_data(right, &data__files[sort_idx]); | |
5f3f8d3b JO |
556 | |
557 | if (!p_left && !p_right) | |
558 | return 0; | |
559 | ||
560 | if (!p_left || !p_right) | |
561 | return p_left ? -1 : 1; | |
562 | ||
563 | /* | |
564 | * We have 2 entries of same kind, let's | |
565 | * make the data comparison. | |
566 | */ | |
567 | return __hist_entry__cmp_compute(p_left, p_right, c); | |
568 | } | |
569 | ||
566b5cfb NK |
570 | static int64_t |
571 | hist_entry__cmp_compute_idx(struct hist_entry *left, struct hist_entry *right, | |
572 | int c, int sort_idx) | |
573 | { | |
574 | struct hist_entry *p_right, *p_left; | |
575 | ||
576 | p_left = get_pair_data(left, &data__files[sort_idx]); | |
577 | p_right = get_pair_data(right, &data__files[sort_idx]); | |
578 | ||
579 | if (!p_left && !p_right) | |
580 | return 0; | |
581 | ||
582 | if (!p_left || !p_right) | |
583 | return p_left ? -1 : 1; | |
584 | ||
a1668c25 | 585 | if (c != COMPUTE_DELTA && c != COMPUTE_DELTA_ABS) { |
566b5cfb NK |
586 | /* |
587 | * The delta can be computed without the baseline, but | |
588 | * others are not. Put those entries which have no | |
589 | * values below. | |
590 | */ | |
591 | if (left->dummy && right->dummy) | |
592 | return 0; | |
593 | ||
594 | if (left->dummy || right->dummy) | |
595 | return left->dummy ? 1 : -1; | |
596 | } | |
597 | ||
598 | return __hist_entry__cmp_compute(p_left, p_right, c); | |
599 | } | |
600 | ||
e7024fc3 | 601 | static int64_t |
87bbdf76 NK |
602 | hist_entry__cmp_nop(struct perf_hpp_fmt *fmt __maybe_unused, |
603 | struct hist_entry *left __maybe_unused, | |
e7024fc3 NK |
604 | struct hist_entry *right __maybe_unused) |
605 | { | |
606 | return 0; | |
607 | } | |
608 | ||
609 | static int64_t | |
87bbdf76 NK |
610 | hist_entry__cmp_baseline(struct perf_hpp_fmt *fmt __maybe_unused, |
611 | struct hist_entry *left, struct hist_entry *right) | |
e7024fc3 | 612 | { |
e7024fc3 NK |
613 | if (left->stat.period == right->stat.period) |
614 | return 0; | |
615 | return left->stat.period > right->stat.period ? 1 : -1; | |
616 | } | |
617 | ||
618 | static int64_t | |
56495a8a | 619 | hist_entry__cmp_delta(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_DELTA, d->idx); | |
e7024fc3 NK |
625 | } |
626 | ||
a1668c25 NK |
627 | static int64_t |
628 | hist_entry__cmp_delta_abs(struct perf_hpp_fmt *fmt, | |
629 | struct hist_entry *left, struct hist_entry *right) | |
630 | { | |
631 | struct data__file *d = fmt_to_data_file(fmt); | |
632 | ||
633 | return hist_entry__cmp_compute(right, left, COMPUTE_DELTA_ABS, d->idx); | |
634 | } | |
635 | ||
e7024fc3 | 636 | static int64_t |
56495a8a | 637 | hist_entry__cmp_ratio(struct perf_hpp_fmt *fmt, |
87bbdf76 | 638 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 639 | { |
56495a8a NK |
640 | struct data__file *d = fmt_to_data_file(fmt); |
641 | ||
642 | return hist_entry__cmp_compute(right, left, COMPUTE_RATIO, d->idx); | |
e7024fc3 NK |
643 | } |
644 | ||
645 | static int64_t | |
56495a8a | 646 | hist_entry__cmp_wdiff(struct perf_hpp_fmt *fmt, |
87bbdf76 | 647 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 648 | { |
56495a8a NK |
649 | struct data__file *d = fmt_to_data_file(fmt); |
650 | ||
651 | return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF, d->idx); | |
e7024fc3 NK |
652 | } |
653 | ||
566b5cfb NK |
654 | static int64_t |
655 | hist_entry__cmp_delta_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
656 | struct hist_entry *left, struct hist_entry *right) | |
657 | { | |
658 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_DELTA, | |
659 | sort_compute); | |
660 | } | |
661 | ||
a1668c25 NK |
662 | static int64_t |
663 | hist_entry__cmp_delta_abs_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
664 | struct hist_entry *left, struct hist_entry *right) | |
665 | { | |
666 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_DELTA_ABS, | |
667 | sort_compute); | |
668 | } | |
669 | ||
566b5cfb NK |
670 | static int64_t |
671 | hist_entry__cmp_ratio_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
672 | struct hist_entry *left, struct hist_entry *right) | |
673 | { | |
674 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_RATIO, | |
675 | sort_compute); | |
676 | } | |
677 | ||
678 | static int64_t | |
679 | hist_entry__cmp_wdiff_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
680 | struct hist_entry *left, struct hist_entry *right) | |
681 | { | |
682 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_WEIGHTED_DIFF, | |
683 | sort_compute); | |
684 | } | |
685 | ||
22aeb7f5 | 686 | static void hists__process(struct hists *hists) |
a06d143e | 687 | { |
a06d143e | 688 | if (show_baseline_only) |
22aeb7f5 | 689 | hists__baseline_only(hists); |
a06d143e | 690 | |
56495a8a | 691 | hists__precompute(hists); |
38259a17 | 692 | hists__output_resort(hists, NULL); |
96c47f19 | 693 | |
d05e3aae JO |
694 | hists__fprintf(hists, true, 0, 0, 0, stdout, |
695 | symbol_conf.use_callchain); | |
a06d143e JO |
696 | } |
697 | ||
1d81c7fc JO |
698 | static void data__fprintf(void) |
699 | { | |
700 | struct data__file *d; | |
701 | int i; | |
702 | ||
703 | fprintf(stdout, "# Data files:\n"); | |
704 | ||
705 | data__for_each_file(i, d) | |
706 | fprintf(stdout, "# [%d] %s %s\n", | |
f5fc1412 | 707 | d->idx, d->file.path, |
1d81c7fc JO |
708 | !d->idx ? "(Baseline)" : ""); |
709 | ||
710 | fprintf(stdout, "#\n"); | |
711 | } | |
712 | ||
ec308426 | 713 | static void data_process(void) |
86a9eee0 | 714 | { |
22aeb7f5 JO |
715 | struct perf_evlist *evlist_base = data__files[0].session->evlist; |
716 | struct perf_evsel *evsel_base; | |
863e451f | 717 | bool first = true; |
86a9eee0 | 718 | |
e5cadb93 | 719 | evlist__for_each_entry(evlist_base, evsel_base) { |
4ea062ed | 720 | struct hists *hists_base = evsel__hists(evsel_base); |
22aeb7f5 JO |
721 | struct data__file *d; |
722 | int i; | |
86a9eee0 | 723 | |
22aeb7f5 JO |
724 | data__for_each_file_new(i, d) { |
725 | struct perf_evlist *evlist = d->session->evlist; | |
726 | struct perf_evsel *evsel; | |
4ea062ed | 727 | struct hists *hists; |
22aeb7f5 JO |
728 | |
729 | evsel = evsel_match(evsel_base, evlist); | |
730 | if (!evsel) | |
731 | continue; | |
732 | ||
4ea062ed ACM |
733 | hists = evsel__hists(evsel); |
734 | d->hists = hists; | |
22aeb7f5 | 735 | |
4ea062ed | 736 | hists__match(hists_base, hists); |
22aeb7f5 JO |
737 | |
738 | if (!show_baseline_only) | |
4ea062ed | 739 | hists__link(hists_base, hists); |
22aeb7f5 | 740 | } |
86a9eee0 | 741 | |
ec308426 | 742 | fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", |
22aeb7f5 | 743 | perf_evsel__name(evsel_base)); |
863e451f | 744 | |
ec308426 | 745 | first = false; |
863e451f | 746 | |
22aeb7f5 | 747 | if (verbose || data__files_cnt > 2) |
1d81c7fc JO |
748 | data__fprintf(); |
749 | ||
f9db0d0f KL |
750 | /* Don't sort callchain for perf diff */ |
751 | perf_evsel__reset_sample_bit(evsel_base, CALLCHAIN); | |
752 | ||
4ea062ed | 753 | hists__process(hists_base); |
ec308426 JO |
754 | } |
755 | } | |
863e451f | 756 | |
c818b498 JO |
757 | static void data__free(struct data__file *d) |
758 | { | |
759 | int col; | |
760 | ||
761 | for (col = 0; col < PERF_HPP_DIFF__MAX_INDEX; col++) { | |
762 | struct diff_hpp_fmt *fmt = &d->fmt[col]; | |
763 | ||
74cf249d | 764 | zfree(&fmt->header); |
c818b498 JO |
765 | } |
766 | } | |
767 | ||
ec308426 JO |
768 | static int __cmd_diff(void) |
769 | { | |
770 | struct data__file *d; | |
771 | int ret = -EINVAL, i; | |
772 | ||
773 | data__for_each_file(i, d) { | |
f5fc1412 | 774 | d->session = perf_session__new(&d->file, false, &tool); |
ec308426 | 775 | if (!d->session) { |
f5fc1412 | 776 | pr_err("Failed to open %s\n", d->file.path); |
52e02834 | 777 | ret = -1; |
ec308426 JO |
778 | goto out_delete; |
779 | } | |
863e451f | 780 | |
b7b61cbe | 781 | ret = perf_session__process_events(d->session); |
ec308426 | 782 | if (ret) { |
f5fc1412 | 783 | pr_err("Failed to process %s\n", d->file.path); |
ec308426 JO |
784 | goto out_delete; |
785 | } | |
863e451f | 786 | |
ec308426 JO |
787 | perf_evlist__collapse_resort(d->session->evlist); |
788 | } | |
789 | ||
790 | data_process(); | |
863e451f | 791 | |
ec308426 JO |
792 | out_delete: |
793 | data__for_each_file(i, d) { | |
e1446551 | 794 | perf_session__delete(d->session); |
c818b498 | 795 | data__free(d); |
863e451f | 796 | } |
9c443dfd | 797 | |
ec308426 | 798 | free(data__files); |
86a9eee0 ACM |
799 | return ret; |
800 | } | |
801 | ||
0422a4fc | 802 | static const char * const diff_usage[] = { |
86a9eee0 | 803 | "perf diff [<options>] [old_file] [new_file]", |
0422a4fc | 804 | NULL, |
86a9eee0 ACM |
805 | }; |
806 | ||
807 | static const struct option options[] = { | |
c0555642 | 808 | OPT_INCR('v', "verbose", &verbose, |
86a9eee0 | 809 | "be more verbose (show symbol address, etc)"), |
a06d143e JO |
810 | OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, |
811 | "Show only items with match in baseline"), | |
81d5f958 | 812 | OPT_CALLBACK('c', "compute", &compute, |
be57b3fd | 813 | "delta,delta-abs,ratio,wdiff:w1,w2 (default delta-abs)", |
7aaf6b35 JO |
814 | "Entries differential computation selection", |
815 | setup_compute), | |
61949b21 JO |
816 | OPT_BOOLEAN('p', "period", &show_period, |
817 | "Show period values."), | |
ed279da2 JO |
818 | OPT_BOOLEAN('F', "formula", &show_formula, |
819 | "Show formula."), | |
86a9eee0 ACM |
820 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
821 | "dump raw trace in ASCII"), | |
822 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
6b1f3423 DA |
823 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
824 | "file", "kallsyms pathname"), | |
86a9eee0 ACM |
825 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, |
826 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
c410a338 ACM |
827 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
828 | "only consider symbols in these dsos"), | |
829 | OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
830 | "only consider symbols in these comms"), | |
831 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
832 | "only consider these symbols"), | |
c351c281 | 833 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
834 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
835 | " Please refer the man page for the complete list."), | |
8b8ca6e1 | 836 | OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator", |
c351c281 ACM |
837 | "separator for columns, no spaces will be added between " |
838 | "columns '.' is reserved."), | |
a7066709 HK |
839 | OPT_CALLBACK(0, "symfs", NULL, "directory", |
840 | "Look for files with symbols relative to this directory", | |
841 | symbol__config_symfs), | |
5f3f8d3b | 842 | OPT_UINTEGER('o', "order", &sort_compute, "Specify compute sorting."), |
8810f6ce NK |
843 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
844 | "How to display percentage of filtered entries", parse_filter_percentage), | |
86a9eee0 ACM |
845 | OPT_END() |
846 | }; | |
847 | ||
345dc0b4 | 848 | static double baseline_percent(struct hist_entry *he) |
1d77822e | 849 | { |
8810f6ce NK |
850 | u64 total = hists__total_period(he->hists); |
851 | ||
852 | return 100.0 * he->stat.period / total; | |
345dc0b4 | 853 | } |
7aaf6b35 | 854 | |
345dc0b4 JO |
855 | static int hpp__color_baseline(struct perf_hpp_fmt *fmt, |
856 | struct perf_hpp *hpp, struct hist_entry *he) | |
857 | { | |
858 | struct diff_hpp_fmt *dfmt = | |
859 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
860 | double percent = baseline_percent(he); | |
861 | char pfmt[20] = " "; | |
862 | ||
863 | if (!he->dummy) { | |
864 | scnprintf(pfmt, 20, "%%%d.2f%%%%", dfmt->header_width - 1); | |
865 | return percent_color_snprintf(hpp->buf, hpp->size, | |
866 | pfmt, percent); | |
867 | } else | |
868 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
869 | dfmt->header_width, pfmt); | |
870 | } | |
871 | ||
872 | static int hpp__entry_baseline(struct hist_entry *he, char *buf, size_t size) | |
873 | { | |
874 | double percent = baseline_percent(he); | |
875 | const char *fmt = symbol_conf.field_sep ? "%.2f" : "%6.2f%%"; | |
876 | int ret = 0; | |
877 | ||
878 | if (!he->dummy) | |
879 | ret = scnprintf(buf, size, fmt, percent); | |
880 | ||
881 | return ret; | |
882 | } | |
883 | ||
01f10bc8 RR |
884 | static int __hpp__color_compare(struct perf_hpp_fmt *fmt, |
885 | struct perf_hpp *hpp, struct hist_entry *he, | |
886 | int comparison_method) | |
887 | { | |
888 | struct diff_hpp_fmt *dfmt = | |
889 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
890 | struct hist_entry *pair = get_pair_fmt(he, dfmt); | |
891 | double diff; | |
a5846e21 | 892 | s64 wdiff; |
01f10bc8 RR |
893 | char pfmt[20] = " "; |
894 | ||
895 | if (!pair) | |
ec3d07cb | 896 | goto no_print; |
01f10bc8 RR |
897 | |
898 | switch (comparison_method) { | |
899 | case COMPUTE_DELTA: | |
900 | if (pair->diff.computed) | |
901 | diff = pair->diff.period_ratio_delta; | |
902 | else | |
903 | diff = compute_delta(he, pair); | |
904 | ||
01f10bc8 RR |
905 | scnprintf(pfmt, 20, "%%%+d.2f%%%%", dfmt->header_width - 1); |
906 | return percent_color_snprintf(hpp->buf, hpp->size, | |
907 | pfmt, diff); | |
1f513b2c RR |
908 | case COMPUTE_RATIO: |
909 | if (he->dummy) | |
910 | goto dummy_print; | |
911 | if (pair->diff.computed) | |
912 | diff = pair->diff.period_ratio; | |
913 | else | |
914 | diff = compute_ratio(he, pair); | |
915 | ||
916 | scnprintf(pfmt, 20, "%%%d.6f", dfmt->header_width); | |
917 | return value_color_snprintf(hpp->buf, hpp->size, | |
918 | pfmt, diff); | |
a5846e21 RR |
919 | case COMPUTE_WEIGHTED_DIFF: |
920 | if (he->dummy) | |
921 | goto dummy_print; | |
922 | if (pair->diff.computed) | |
923 | wdiff = pair->diff.wdiff; | |
924 | else | |
925 | wdiff = compute_wdiff(he, pair); | |
926 | ||
927 | scnprintf(pfmt, 20, "%%14ld", dfmt->header_width); | |
928 | return color_snprintf(hpp->buf, hpp->size, | |
929 | get_percent_color(wdiff), | |
930 | pfmt, wdiff); | |
01f10bc8 RR |
931 | default: |
932 | BUG_ON(1); | |
933 | } | |
934 | dummy_print: | |
ec3d07cb NK |
935 | return scnprintf(hpp->buf, hpp->size, "%*s", |
936 | dfmt->header_width, "N/A"); | |
937 | no_print: | |
01f10bc8 RR |
938 | return scnprintf(hpp->buf, hpp->size, "%*s", |
939 | dfmt->header_width, pfmt); | |
940 | } | |
941 | ||
942 | static int hpp__color_delta(struct perf_hpp_fmt *fmt, | |
943 | struct perf_hpp *hpp, struct hist_entry *he) | |
944 | { | |
945 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_DELTA); | |
946 | } | |
947 | ||
1f513b2c RR |
948 | static int hpp__color_ratio(struct perf_hpp_fmt *fmt, |
949 | struct perf_hpp *hpp, struct hist_entry *he) | |
950 | { | |
951 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_RATIO); | |
952 | } | |
953 | ||
a5846e21 RR |
954 | static int hpp__color_wdiff(struct perf_hpp_fmt *fmt, |
955 | struct perf_hpp *hpp, struct hist_entry *he) | |
956 | { | |
957 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_WEIGHTED_DIFF); | |
958 | } | |
959 | ||
345dc0b4 JO |
960 | static void |
961 | hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size) | |
962 | { | |
963 | switch (idx) { | |
964 | case PERF_HPP_DIFF__PERIOD_BASELINE: | |
965 | scnprintf(buf, size, "%" PRIu64, he->stat.period); | |
7aaf6b35 | 966 | break; |
345dc0b4 JO |
967 | |
968 | default: | |
81d5f958 | 969 | break; |
345dc0b4 JO |
970 | } |
971 | } | |
972 | ||
973 | static void | |
974 | hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair, | |
975 | int idx, char *buf, size_t size) | |
976 | { | |
977 | double diff; | |
978 | double ratio; | |
979 | s64 wdiff; | |
980 | ||
981 | switch (idx) { | |
982 | case PERF_HPP_DIFF__DELTA: | |
a1668c25 | 983 | case PERF_HPP_DIFF__DELTA_ABS: |
345dc0b4 JO |
984 | if (pair->diff.computed) |
985 | diff = pair->diff.period_ratio_delta; | |
986 | else | |
ef358e6d | 987 | diff = compute_delta(he, pair); |
345dc0b4 | 988 | |
ec3d07cb | 989 | scnprintf(buf, size, "%+4.2F%%", diff); |
345dc0b4 JO |
990 | break; |
991 | ||
992 | case PERF_HPP_DIFF__RATIO: | |
993 | /* No point for ratio number if we are dummy.. */ | |
ec3d07cb NK |
994 | if (he->dummy) { |
995 | scnprintf(buf, size, "N/A"); | |
345dc0b4 | 996 | break; |
ec3d07cb | 997 | } |
345dc0b4 JO |
998 | |
999 | if (pair->diff.computed) | |
1000 | ratio = pair->diff.period_ratio; | |
1001 | else | |
ef358e6d | 1002 | ratio = compute_ratio(he, pair); |
345dc0b4 JO |
1003 | |
1004 | if (ratio > 0.0) | |
1005 | scnprintf(buf, size, "%14.6F", ratio); | |
1006 | break; | |
1007 | ||
1008 | case PERF_HPP_DIFF__WEIGHTED_DIFF: | |
1009 | /* No point for wdiff number if we are dummy.. */ | |
ec3d07cb NK |
1010 | if (he->dummy) { |
1011 | scnprintf(buf, size, "N/A"); | |
345dc0b4 | 1012 | break; |
ec3d07cb | 1013 | } |
345dc0b4 JO |
1014 | |
1015 | if (pair->diff.computed) | |
1016 | wdiff = pair->diff.wdiff; | |
1017 | else | |
ef358e6d | 1018 | wdiff = compute_wdiff(he, pair); |
345dc0b4 JO |
1019 | |
1020 | if (wdiff != 0) | |
1021 | scnprintf(buf, size, "%14ld", wdiff); | |
1022 | break; | |
1023 | ||
1024 | case PERF_HPP_DIFF__FORMULA: | |
ef358e6d | 1025 | formula_fprintf(he, pair, buf, size); |
7aaf6b35 | 1026 | break; |
345dc0b4 JO |
1027 | |
1028 | case PERF_HPP_DIFF__PERIOD: | |
1029 | scnprintf(buf, size, "%" PRIu64, pair->stat.period); | |
1030 | break; | |
1031 | ||
7aaf6b35 JO |
1032 | default: |
1033 | BUG_ON(1); | |
1034 | }; | |
345dc0b4 JO |
1035 | } |
1036 | ||
1037 | static void | |
22aeb7f5 JO |
1038 | __hpp__entry_global(struct hist_entry *he, struct diff_hpp_fmt *dfmt, |
1039 | char *buf, size_t size) | |
345dc0b4 | 1040 | { |
5f3f8d3b | 1041 | struct hist_entry *pair = get_pair_fmt(he, dfmt); |
22aeb7f5 | 1042 | int idx = dfmt->idx; |
345dc0b4 JO |
1043 | |
1044 | /* baseline is special */ | |
1045 | if (idx == PERF_HPP_DIFF__BASELINE) | |
1046 | hpp__entry_baseline(he, buf, size); | |
1047 | else { | |
1048 | if (pair) | |
1049 | hpp__entry_pair(he, pair, idx, buf, size); | |
1050 | else | |
1051 | hpp__entry_unpair(he, idx, buf, size); | |
1052 | } | |
1053 | } | |
1054 | ||
1055 | static int hpp__entry_global(struct perf_hpp_fmt *_fmt, struct perf_hpp *hpp, | |
1056 | struct hist_entry *he) | |
1057 | { | |
1058 | struct diff_hpp_fmt *dfmt = | |
1059 | container_of(_fmt, struct diff_hpp_fmt, fmt); | |
1060 | char buf[MAX_COL_WIDTH] = " "; | |
1061 | ||
22aeb7f5 | 1062 | __hpp__entry_global(he, dfmt, buf, MAX_COL_WIDTH); |
345dc0b4 JO |
1063 | |
1064 | if (symbol_conf.field_sep) | |
1065 | return scnprintf(hpp->buf, hpp->size, "%s", buf); | |
1066 | else | |
1067 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
1068 | dfmt->header_width, buf); | |
1069 | } | |
1070 | ||
94a0793d | 1071 | static int hpp__header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, |
74bb43f2 | 1072 | struct hists *hists __maybe_unused, |
29659ab4 JO |
1073 | int line __maybe_unused, |
1074 | int *span __maybe_unused) | |
345dc0b4 JO |
1075 | { |
1076 | struct diff_hpp_fmt *dfmt = | |
1077 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1078 | ||
1079 | BUG_ON(!dfmt->header); | |
1080 | return scnprintf(hpp->buf, hpp->size, dfmt->header); | |
1081 | } | |
1082 | ||
1083 | static int hpp__width(struct perf_hpp_fmt *fmt, | |
94a0793d | 1084 | struct perf_hpp *hpp __maybe_unused, |
da1b0407 | 1085 | struct hists *hists __maybe_unused) |
345dc0b4 JO |
1086 | { |
1087 | struct diff_hpp_fmt *dfmt = | |
1088 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1089 | ||
1090 | BUG_ON(dfmt->header_width <= 0); | |
1091 | return dfmt->header_width; | |
1092 | } | |
1093 | ||
22aeb7f5 | 1094 | static void init_header(struct data__file *d, struct diff_hpp_fmt *dfmt) |
345dc0b4 JO |
1095 | { |
1096 | #define MAX_HEADER_NAME 100 | |
1097 | char buf_indent[MAX_HEADER_NAME]; | |
1098 | char buf[MAX_HEADER_NAME]; | |
1099 | const char *header = NULL; | |
1100 | int width = 0; | |
1101 | ||
1102 | BUG_ON(dfmt->idx >= PERF_HPP_DIFF__MAX_INDEX); | |
1103 | header = columns[dfmt->idx].name; | |
1104 | width = columns[dfmt->idx].width; | |
1105 | ||
1106 | /* Only our defined HPP fmts should appear here. */ | |
1107 | BUG_ON(!header); | |
1108 | ||
22aeb7f5 JO |
1109 | if (data__files_cnt > 2) |
1110 | scnprintf(buf, MAX_HEADER_NAME, "%s/%d", header, d->idx); | |
1111 | ||
345dc0b4 JO |
1112 | #define NAME (data__files_cnt > 2 ? buf : header) |
1113 | dfmt->header_width = width; | |
1114 | width = (int) strlen(NAME); | |
1115 | if (dfmt->header_width < width) | |
1116 | dfmt->header_width = width; | |
1117 | ||
1118 | scnprintf(buf_indent, MAX_HEADER_NAME, "%*s", | |
1119 | dfmt->header_width, NAME); | |
1120 | ||
1121 | dfmt->header = strdup(buf_indent); | |
1122 | #undef MAX_HEADER_NAME | |
1123 | #undef NAME | |
1124 | } | |
1125 | ||
c818b498 | 1126 | static void data__hpp_register(struct data__file *d, int idx) |
345dc0b4 | 1127 | { |
c818b498 JO |
1128 | struct diff_hpp_fmt *dfmt = &d->fmt[idx]; |
1129 | struct perf_hpp_fmt *fmt = &dfmt->fmt; | |
1130 | ||
1131 | dfmt->idx = idx; | |
1132 | ||
1133 | fmt->header = hpp__header; | |
1134 | fmt->width = hpp__width; | |
1135 | fmt->entry = hpp__entry_global; | |
e7024fc3 NK |
1136 | fmt->cmp = hist_entry__cmp_nop; |
1137 | fmt->collapse = hist_entry__cmp_nop; | |
c818b498 JO |
1138 | |
1139 | /* TODO more colors */ | |
01f10bc8 RR |
1140 | switch (idx) { |
1141 | case PERF_HPP_DIFF__BASELINE: | |
c818b498 | 1142 | fmt->color = hpp__color_baseline; |
e7024fc3 | 1143 | fmt->sort = hist_entry__cmp_baseline; |
01f10bc8 RR |
1144 | break; |
1145 | case PERF_HPP_DIFF__DELTA: | |
1146 | fmt->color = hpp__color_delta; | |
e7024fc3 | 1147 | fmt->sort = hist_entry__cmp_delta; |
01f10bc8 | 1148 | break; |
1f513b2c RR |
1149 | case PERF_HPP_DIFF__RATIO: |
1150 | fmt->color = hpp__color_ratio; | |
e7024fc3 | 1151 | fmt->sort = hist_entry__cmp_ratio; |
1f513b2c | 1152 | break; |
a5846e21 RR |
1153 | case PERF_HPP_DIFF__WEIGHTED_DIFF: |
1154 | fmt->color = hpp__color_wdiff; | |
e7024fc3 | 1155 | fmt->sort = hist_entry__cmp_wdiff; |
a5846e21 | 1156 | break; |
a1668c25 NK |
1157 | case PERF_HPP_DIFF__DELTA_ABS: |
1158 | fmt->color = hpp__color_delta; | |
1159 | fmt->sort = hist_entry__cmp_delta_abs; | |
1160 | break; | |
01f10bc8 | 1161 | default: |
e7024fc3 | 1162 | fmt->sort = hist_entry__cmp_nop; |
01f10bc8 RR |
1163 | break; |
1164 | } | |
345dc0b4 | 1165 | |
22aeb7f5 | 1166 | init_header(d, dfmt); |
c818b498 | 1167 | perf_hpp__column_register(fmt); |
e7024fc3 | 1168 | perf_hpp__register_sort_field(fmt); |
345dc0b4 JO |
1169 | } |
1170 | ||
566b5cfb | 1171 | static int ui_init(void) |
345dc0b4 | 1172 | { |
c818b498 | 1173 | struct data__file *d; |
566b5cfb | 1174 | struct perf_hpp_fmt *fmt; |
c818b498 JO |
1175 | int i; |
1176 | ||
1177 | data__for_each_file(i, d) { | |
1178 | ||
1179 | /* | |
1180 | * Baseline or compute realted columns: | |
1181 | * | |
1182 | * PERF_HPP_DIFF__BASELINE | |
1183 | * PERF_HPP_DIFF__DELTA | |
1184 | * PERF_HPP_DIFF__RATIO | |
1185 | * PERF_HPP_DIFF__WEIGHTED_DIFF | |
1186 | */ | |
1187 | data__hpp_register(d, i ? compute_2_hpp[compute] : | |
1188 | PERF_HPP_DIFF__BASELINE); | |
1d77822e | 1189 | |
c818b498 JO |
1190 | /* |
1191 | * And the rest: | |
1192 | * | |
1193 | * PERF_HPP_DIFF__FORMULA | |
1194 | * PERF_HPP_DIFF__PERIOD | |
1195 | * PERF_HPP_DIFF__PERIOD_BASELINE | |
1196 | */ | |
1197 | if (show_formula && i) | |
1198 | data__hpp_register(d, PERF_HPP_DIFF__FORMULA); | |
ed279da2 | 1199 | |
c818b498 JO |
1200 | if (show_period) |
1201 | data__hpp_register(d, i ? PERF_HPP_DIFF__PERIOD : | |
1202 | PERF_HPP_DIFF__PERIOD_BASELINE); | |
61949b21 | 1203 | } |
566b5cfb NK |
1204 | |
1205 | if (!sort_compute) | |
1206 | return 0; | |
1207 | ||
1208 | /* | |
1209 | * Prepend an fmt to sort on columns at 'sort_compute' first. | |
1210 | * This fmt is added only to the sort list but not to the | |
1211 | * output fields list. | |
1212 | * | |
1213 | * Note that this column (data) can be compared twice - one | |
1214 | * for this 'sort_compute' fmt and another for the normal | |
1215 | * diff_hpp_fmt. But it shouldn't a problem as most entries | |
1216 | * will be sorted out by first try or baseline and comparing | |
1217 | * is not a costly operation. | |
1218 | */ | |
1219 | fmt = zalloc(sizeof(*fmt)); | |
1220 | if (fmt == NULL) { | |
1221 | pr_err("Memory allocation failed\n"); | |
1222 | return -1; | |
1223 | } | |
1224 | ||
1225 | fmt->cmp = hist_entry__cmp_nop; | |
1226 | fmt->collapse = hist_entry__cmp_nop; | |
1227 | ||
1228 | switch (compute) { | |
1229 | case COMPUTE_DELTA: | |
1230 | fmt->sort = hist_entry__cmp_delta_idx; | |
1231 | break; | |
1232 | case COMPUTE_RATIO: | |
1233 | fmt->sort = hist_entry__cmp_ratio_idx; | |
1234 | break; | |
1235 | case COMPUTE_WEIGHTED_DIFF: | |
1236 | fmt->sort = hist_entry__cmp_wdiff_idx; | |
1237 | break; | |
a1668c25 NK |
1238 | case COMPUTE_DELTA_ABS: |
1239 | fmt->sort = hist_entry__cmp_delta_abs_idx; | |
1240 | break; | |
566b5cfb NK |
1241 | default: |
1242 | BUG_ON(1); | |
1243 | } | |
1244 | ||
a1c9f97f | 1245 | perf_hpp__prepend_sort_field(fmt); |
566b5cfb | 1246 | return 0; |
1d77822e JO |
1247 | } |
1248 | ||
ec308426 | 1249 | static int data_init(int argc, const char **argv) |
86a9eee0 | 1250 | { |
ec308426 JO |
1251 | struct data__file *d; |
1252 | static const char *defaults[] = { | |
1253 | "perf.data.old", | |
1254 | "perf.data", | |
1255 | }; | |
22aeb7f5 | 1256 | bool use_default = true; |
ec308426 JO |
1257 | int i; |
1258 | ||
1259 | data__files_cnt = 2; | |
1260 | ||
86a9eee0 | 1261 | if (argc) { |
22aeb7f5 | 1262 | if (argc == 1) |
ec308426 | 1263 | defaults[1] = argv[0]; |
22aeb7f5 JO |
1264 | else { |
1265 | data__files_cnt = argc; | |
1266 | use_default = false; | |
1267 | } | |
d8d9608f | 1268 | } else if (perf_guest) { |
ec308426 JO |
1269 | defaults[0] = "perf.data.host"; |
1270 | defaults[1] = "perf.data.guest"; | |
86a9eee0 ACM |
1271 | } |
1272 | ||
5f3f8d3b JO |
1273 | if (sort_compute >= (unsigned int) data__files_cnt) { |
1274 | pr_err("Order option out of limit.\n"); | |
1275 | return -EINVAL; | |
1276 | } | |
1277 | ||
ec308426 JO |
1278 | data__files = zalloc(sizeof(*data__files) * data__files_cnt); |
1279 | if (!data__files) | |
1280 | return -ENOMEM; | |
1281 | ||
1282 | data__for_each_file(i, d) { | |
f5fc1412 JO |
1283 | struct perf_data_file *file = &d->file; |
1284 | ||
1285 | file->path = use_default ? defaults[i] : argv[i]; | |
1286 | file->mode = PERF_DATA_MODE_READ, | |
1287 | file->force = force, | |
1288 | ||
ec308426 JO |
1289 | d->idx = i; |
1290 | } | |
1291 | ||
1292 | return 0; | |
1293 | } | |
1294 | ||
d49dd15d NK |
1295 | static int diff__config(const char *var, const char *value, |
1296 | void *cb __maybe_unused) | |
1297 | { | |
1298 | if (!strcmp(var, "diff.order")) { | |
1299 | sort_compute = perf_config_int(var, value); | |
1300 | return 0; | |
1301 | } | |
4b35994a NK |
1302 | if (!strcmp(var, "diff.compute")) { |
1303 | if (!strcmp(value, "delta")) { | |
1304 | compute = COMPUTE_DELTA; | |
1305 | } else if (!strcmp(value, "delta-abs")) { | |
1306 | compute = COMPUTE_DELTA_ABS; | |
1307 | } else if (!strcmp(value, "ratio")) { | |
1308 | compute = COMPUTE_RATIO; | |
1309 | } else if (!strcmp(value, "wdiff")) { | |
1310 | compute = COMPUTE_WEIGHTED_DIFF; | |
1311 | } else { | |
1312 | pr_err("Invalid compute method: %s\n", value); | |
1313 | return -1; | |
1314 | } | |
1315 | } | |
d49dd15d NK |
1316 | |
1317 | return 0; | |
1318 | } | |
1319 | ||
ec308426 JO |
1320 | int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused) |
1321 | { | |
9ab1f508 KL |
1322 | int ret = hists__init(); |
1323 | ||
1324 | if (ret < 0) | |
1325 | return ret; | |
1326 | ||
d49dd15d NK |
1327 | perf_config(diff__config, NULL); |
1328 | ||
ec308426 JO |
1329 | argc = parse_options(argc, argv, options, diff_usage, 0); |
1330 | ||
0a7e6d1b | 1331 | if (symbol__init(NULL) < 0) |
655000e7 ACM |
1332 | return -1; |
1333 | ||
ec308426 JO |
1334 | if (data_init(argc, argv) < 0) |
1335 | return -1; | |
1336 | ||
566b5cfb NK |
1337 | if (ui_init() < 0) |
1338 | return -1; | |
1d77822e | 1339 | |
512ae1bd NK |
1340 | sort__mode = SORT_MODE__DIFF; |
1341 | ||
40184c46 | 1342 | if (setup_sorting(NULL) < 0) |
55309985 NK |
1343 | usage_with_options(diff_usage, options); |
1344 | ||
86a9eee0 | 1345 | setup_pager(); |
c351c281 | 1346 | |
08e71542 | 1347 | sort__setup_elide(NULL); |
c351c281 | 1348 | |
86a9eee0 ACM |
1349 | return __cmd_diff(); |
1350 | } |