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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
86a9eee0 ACM |
2 | /* |
3 | * builtin-diff.c | |
4 | * | |
5 | * Builtin diff command: Analyze two perf.data input files, look up and read | |
6 | * DSOs and symbol information, sort them and produce a diff. | |
7 | */ | |
8 | #include "builtin.h" | |
9 | ||
10 | #include "util/debug.h" | |
11 | #include "util/event.h" | |
12 | #include "util/hist.h" | |
743eb868 | 13 | #include "util/evsel.h" |
863e451f | 14 | #include "util/evlist.h" |
86a9eee0 | 15 | #include "util/session.h" |
45694aa7 | 16 | #include "util/tool.h" |
86a9eee0 ACM |
17 | #include "util/sort.h" |
18 | #include "util/symbol.h" | |
19 | #include "util/util.h" | |
f5fc1412 | 20 | #include "util/data.h" |
d49dd15d | 21 | #include "util/config.h" |
86a9eee0 | 22 | |
a43783ae | 23 | #include <errno.h> |
fd20e811 | 24 | #include <inttypes.h> |
86a9eee0 | 25 | #include <stdlib.h> |
345dc0b4 JO |
26 | #include <math.h> |
27 | ||
28 | /* Diff command specific HPP columns. */ | |
29 | enum { | |
30 | PERF_HPP_DIFF__BASELINE, | |
31 | PERF_HPP_DIFF__PERIOD, | |
32 | PERF_HPP_DIFF__PERIOD_BASELINE, | |
33 | PERF_HPP_DIFF__DELTA, | |
34 | PERF_HPP_DIFF__RATIO, | |
35 | PERF_HPP_DIFF__WEIGHTED_DIFF, | |
36 | PERF_HPP_DIFF__FORMULA, | |
a1668c25 | 37 | PERF_HPP_DIFF__DELTA_ABS, |
345dc0b4 JO |
38 | |
39 | PERF_HPP_DIFF__MAX_INDEX | |
40 | }; | |
41 | ||
42 | struct diff_hpp_fmt { | |
43 | struct perf_hpp_fmt fmt; | |
44 | int idx; | |
45 | char *header; | |
46 | int header_width; | |
47 | }; | |
86a9eee0 | 48 | |
ec308426 JO |
49 | struct data__file { |
50 | struct perf_session *session; | |
8ceb41d7 | 51 | struct perf_data data; |
ec308426 | 52 | int idx; |
22aeb7f5 | 53 | struct hists *hists; |
c818b498 | 54 | struct diff_hpp_fmt fmt[PERF_HPP_DIFF__MAX_INDEX]; |
ec308426 JO |
55 | }; |
56 | ||
57 | static struct data__file *data__files; | |
58 | static int data__files_cnt; | |
59 | ||
60 | #define data__for_each_file_start(i, d, s) \ | |
61 | for (i = s, d = &data__files[s]; \ | |
62 | i < data__files_cnt; \ | |
63 | i++, d = &data__files[i]) | |
64 | ||
65 | #define data__for_each_file(i, d) data__for_each_file_start(i, d, 0) | |
22aeb7f5 | 66 | #define data__for_each_file_new(i, d) data__for_each_file_start(i, d, 1) |
ec308426 | 67 | |
ec308426 | 68 | static bool force; |
61949b21 | 69 | static bool show_period; |
ed279da2 | 70 | static bool show_formula; |
a06d143e | 71 | static bool show_baseline_only; |
be57b3fd | 72 | static unsigned int sort_compute = 1; |
86a9eee0 | 73 | |
81d5f958 JO |
74 | static s64 compute_wdiff_w1; |
75 | static s64 compute_wdiff_w2; | |
76 | ||
7aaf6b35 JO |
77 | enum { |
78 | COMPUTE_DELTA, | |
79 | COMPUTE_RATIO, | |
81d5f958 | 80 | COMPUTE_WEIGHTED_DIFF, |
a1668c25 | 81 | COMPUTE_DELTA_ABS, |
7aaf6b35 JO |
82 | COMPUTE_MAX, |
83 | }; | |
84 | ||
85 | const char *compute_names[COMPUTE_MAX] = { | |
86 | [COMPUTE_DELTA] = "delta", | |
a1668c25 | 87 | [COMPUTE_DELTA_ABS] = "delta-abs", |
7aaf6b35 | 88 | [COMPUTE_RATIO] = "ratio", |
81d5f958 | 89 | [COMPUTE_WEIGHTED_DIFF] = "wdiff", |
7aaf6b35 JO |
90 | }; |
91 | ||
be57b3fd | 92 | static int compute = COMPUTE_DELTA_ABS; |
7aaf6b35 | 93 | |
345dc0b4 JO |
94 | static int compute_2_hpp[COMPUTE_MAX] = { |
95 | [COMPUTE_DELTA] = PERF_HPP_DIFF__DELTA, | |
a1668c25 | 96 | [COMPUTE_DELTA_ABS] = PERF_HPP_DIFF__DELTA_ABS, |
345dc0b4 JO |
97 | [COMPUTE_RATIO] = PERF_HPP_DIFF__RATIO, |
98 | [COMPUTE_WEIGHTED_DIFF] = PERF_HPP_DIFF__WEIGHTED_DIFF, | |
99 | }; | |
100 | ||
101 | #define MAX_COL_WIDTH 70 | |
102 | ||
103 | static struct header_column { | |
104 | const char *name; | |
105 | int width; | |
106 | } columns[PERF_HPP_DIFF__MAX_INDEX] = { | |
107 | [PERF_HPP_DIFF__BASELINE] = { | |
108 | .name = "Baseline", | |
109 | }, | |
110 | [PERF_HPP_DIFF__PERIOD] = { | |
111 | .name = "Period", | |
112 | .width = 14, | |
113 | }, | |
114 | [PERF_HPP_DIFF__PERIOD_BASELINE] = { | |
115 | .name = "Base period", | |
116 | .width = 14, | |
117 | }, | |
118 | [PERF_HPP_DIFF__DELTA] = { | |
119 | .name = "Delta", | |
120 | .width = 7, | |
121 | }, | |
a1668c25 NK |
122 | [PERF_HPP_DIFF__DELTA_ABS] = { |
123 | .name = "Delta Abs", | |
124 | .width = 7, | |
125 | }, | |
345dc0b4 JO |
126 | [PERF_HPP_DIFF__RATIO] = { |
127 | .name = "Ratio", | |
128 | .width = 14, | |
129 | }, | |
130 | [PERF_HPP_DIFF__WEIGHTED_DIFF] = { | |
131 | .name = "Weighted diff", | |
132 | .width = 14, | |
133 | }, | |
134 | [PERF_HPP_DIFF__FORMULA] = { | |
135 | .name = "Formula", | |
136 | .width = MAX_COL_WIDTH, | |
137 | } | |
138 | }; | |
139 | ||
81d5f958 JO |
140 | static int setup_compute_opt_wdiff(char *opt) |
141 | { | |
142 | char *w1_str = opt; | |
143 | char *w2_str; | |
144 | ||
145 | int ret = -EINVAL; | |
146 | ||
147 | if (!opt) | |
148 | goto out; | |
149 | ||
150 | w2_str = strchr(opt, ','); | |
151 | if (!w2_str) | |
152 | goto out; | |
153 | ||
154 | *w2_str++ = 0x0; | |
155 | if (!*w2_str) | |
156 | goto out; | |
157 | ||
158 | compute_wdiff_w1 = strtol(w1_str, NULL, 10); | |
159 | compute_wdiff_w2 = strtol(w2_str, NULL, 10); | |
160 | ||
161 | if (!compute_wdiff_w1 || !compute_wdiff_w2) | |
162 | goto out; | |
163 | ||
164 | pr_debug("compute wdiff w1(%" PRId64 ") w2(%" PRId64 ")\n", | |
165 | compute_wdiff_w1, compute_wdiff_w2); | |
166 | ||
167 | ret = 0; | |
168 | ||
169 | out: | |
170 | if (ret) | |
171 | pr_err("Failed: wrong weight data, use 'wdiff:w1,w2'\n"); | |
172 | ||
173 | return ret; | |
174 | } | |
175 | ||
176 | static int setup_compute_opt(char *opt) | |
177 | { | |
178 | if (compute == COMPUTE_WEIGHTED_DIFF) | |
179 | return setup_compute_opt_wdiff(opt); | |
180 | ||
181 | if (opt) { | |
182 | pr_err("Failed: extra option specified '%s'", opt); | |
183 | return -EINVAL; | |
184 | } | |
185 | ||
186 | return 0; | |
187 | } | |
188 | ||
7aaf6b35 JO |
189 | static int setup_compute(const struct option *opt, const char *str, |
190 | int unset __maybe_unused) | |
191 | { | |
192 | int *cp = (int *) opt->value; | |
81d5f958 JO |
193 | char *cstr = (char *) str; |
194 | char buf[50]; | |
7aaf6b35 | 195 | unsigned i; |
81d5f958 | 196 | char *option; |
7aaf6b35 JO |
197 | |
198 | if (!str) { | |
199 | *cp = COMPUTE_DELTA; | |
200 | return 0; | |
201 | } | |
202 | ||
81d5f958 JO |
203 | option = strchr(str, ':'); |
204 | if (option) { | |
205 | unsigned len = option++ - str; | |
206 | ||
207 | /* | |
208 | * The str data are not writeable, so we need | |
209 | * to use another buffer. | |
210 | */ | |
211 | ||
212 | /* No option value is longer. */ | |
213 | if (len >= sizeof(buf)) | |
214 | return -EINVAL; | |
215 | ||
216 | strncpy(buf, str, len); | |
217 | buf[len] = 0x0; | |
218 | cstr = buf; | |
219 | } | |
220 | ||
7aaf6b35 | 221 | for (i = 0; i < COMPUTE_MAX; i++) |
81d5f958 | 222 | if (!strcmp(cstr, compute_names[i])) { |
7aaf6b35 | 223 | *cp = i; |
81d5f958 | 224 | return setup_compute_opt(option); |
7aaf6b35 JO |
225 | } |
226 | ||
227 | pr_err("Failed: '%s' is not computation method " | |
81d5f958 | 228 | "(use 'delta','ratio' or 'wdiff')\n", str); |
7aaf6b35 JO |
229 | return -EINVAL; |
230 | } | |
231 | ||
ef358e6d | 232 | static double period_percent(struct hist_entry *he, u64 period) |
96c47f19 | 233 | { |
8810f6ce NK |
234 | u64 total = hists__total_period(he->hists); |
235 | ||
96c47f19 JO |
236 | return (period * 100.0) / total; |
237 | } | |
238 | ||
ef358e6d | 239 | static double compute_delta(struct hist_entry *he, struct hist_entry *pair) |
96c47f19 | 240 | { |
ef358e6d JO |
241 | double old_percent = period_percent(he, he->stat.period); |
242 | double new_percent = period_percent(pair, pair->stat.period); | |
96c47f19 | 243 | |
9af303e2 JO |
244 | pair->diff.period_ratio_delta = new_percent - old_percent; |
245 | pair->diff.computed = true; | |
246 | return pair->diff.period_ratio_delta; | |
96c47f19 JO |
247 | } |
248 | ||
ef358e6d | 249 | static double compute_ratio(struct hist_entry *he, struct hist_entry *pair) |
96c47f19 | 250 | { |
9af303e2 JO |
251 | double old_period = he->stat.period ?: 1; |
252 | double new_period = pair->stat.period; | |
96c47f19 | 253 | |
9af303e2 JO |
254 | pair->diff.computed = true; |
255 | pair->diff.period_ratio = new_period / old_period; | |
256 | return pair->diff.period_ratio; | |
96c47f19 JO |
257 | } |
258 | ||
ef358e6d | 259 | static s64 compute_wdiff(struct hist_entry *he, struct hist_entry *pair) |
81d5f958 | 260 | { |
9af303e2 JO |
261 | u64 old_period = he->stat.period; |
262 | u64 new_period = pair->stat.period; | |
81d5f958 | 263 | |
9af303e2 JO |
264 | pair->diff.computed = true; |
265 | pair->diff.wdiff = new_period * compute_wdiff_w2 - | |
266 | old_period * compute_wdiff_w1; | |
81d5f958 | 267 | |
9af303e2 | 268 | return pair->diff.wdiff; |
81d5f958 JO |
269 | } |
270 | ||
f4c8bae1 JO |
271 | static int formula_delta(struct hist_entry *he, struct hist_entry *pair, |
272 | char *buf, size_t size) | |
ed279da2 | 273 | { |
8810f6ce NK |
274 | u64 he_total = he->hists->stats.total_period; |
275 | u64 pair_total = pair->hists->stats.total_period; | |
276 | ||
277 | if (symbol_conf.filter_relative) { | |
278 | he_total = he->hists->stats.total_non_filtered_period; | |
279 | pair_total = pair->hists->stats.total_non_filtered_period; | |
280 | } | |
ed279da2 JO |
281 | return scnprintf(buf, size, |
282 | "(%" PRIu64 " * 100 / %" PRIu64 ") - " | |
283 | "(%" PRIu64 " * 100 / %" PRIu64 ")", | |
8810f6ce NK |
284 | pair->stat.period, pair_total, |
285 | he->stat.period, he_total); | |
ed279da2 JO |
286 | } |
287 | ||
f4c8bae1 JO |
288 | static int formula_ratio(struct hist_entry *he, struct hist_entry *pair, |
289 | char *buf, size_t size) | |
ed279da2 | 290 | { |
9af303e2 JO |
291 | double old_period = he->stat.period; |
292 | double new_period = pair->stat.period; | |
ed279da2 JO |
293 | |
294 | return scnprintf(buf, size, "%.0F / %.0F", new_period, old_period); | |
295 | } | |
296 | ||
f4c8bae1 JO |
297 | static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair, |
298 | char *buf, size_t size) | |
ed279da2 | 299 | { |
9af303e2 JO |
300 | u64 old_period = he->stat.period; |
301 | u64 new_period = pair->stat.period; | |
ed279da2 JO |
302 | |
303 | return scnprintf(buf, size, | |
304 | "(%" PRIu64 " * " "%" PRId64 ") - (%" PRIu64 " * " "%" PRId64 ")", | |
305 | new_period, compute_wdiff_w2, old_period, compute_wdiff_w1); | |
306 | } | |
307 | ||
ef358e6d JO |
308 | static int formula_fprintf(struct hist_entry *he, struct hist_entry *pair, |
309 | char *buf, size_t size) | |
ed279da2 JO |
310 | { |
311 | switch (compute) { | |
312 | case COMPUTE_DELTA: | |
a1668c25 | 313 | case COMPUTE_DELTA_ABS: |
f4c8bae1 | 314 | return formula_delta(he, pair, buf, size); |
ed279da2 | 315 | case COMPUTE_RATIO: |
f4c8bae1 | 316 | return formula_ratio(he, pair, buf, size); |
ed279da2 | 317 | case COMPUTE_WEIGHTED_DIFF: |
f4c8bae1 | 318 | return formula_wdiff(he, pair, buf, size); |
ed279da2 JO |
319 | default: |
320 | BUG_ON(1); | |
321 | } | |
322 | ||
323 | return -1; | |
324 | } | |
325 | ||
1d037ca1 | 326 | static int diff__process_sample_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 327 | union perf_event *event, |
8d50e5b4 | 328 | struct perf_sample *sample, |
863e451f | 329 | struct perf_evsel *evsel, |
743eb868 | 330 | struct machine *machine) |
86a9eee0 ACM |
331 | { |
332 | struct addr_location al; | |
4ea062ed | 333 | struct hists *hists = evsel__hists(evsel); |
b91fc39f | 334 | int ret = -1; |
86a9eee0 | 335 | |
bb3eb566 | 336 | if (machine__resolve(machine, &al, sample) < 0) { |
86a9eee0 ACM |
337 | pr_warning("problem processing %d event, skipping it.\n", |
338 | event->header.type); | |
339 | return -1; | |
340 | } | |
341 | ||
0102ef3e | 342 | if (!hists__add_entry(hists, &al, NULL, NULL, NULL, sample, true)) { |
c82ee828 | 343 | pr_warning("problem incrementing symbol period, skipping event\n"); |
b91fc39f | 344 | goto out_put; |
86a9eee0 ACM |
345 | } |
346 | ||
820bc81f NK |
347 | /* |
348 | * The total_period is updated here before going to the output | |
349 | * tree since normally only the baseline hists will call | |
350 | * hists__output_resort() and precompute needs the total | |
351 | * period in order to sort entries by percentage delta. | |
352 | */ | |
4ea062ed | 353 | hists->stats.total_period += sample->period; |
820bc81f | 354 | if (!al.filtered) |
4ea062ed | 355 | hists->stats.total_non_filtered_period += sample->period; |
b91fc39f ACM |
356 | ret = 0; |
357 | out_put: | |
358 | addr_location__put(&al); | |
359 | return ret; | |
86a9eee0 ACM |
360 | } |
361 | ||
863e451f JO |
362 | static struct perf_tool tool = { |
363 | .sample = diff__process_sample_event, | |
364 | .mmap = perf_event__process_mmap, | |
68ca9d65 | 365 | .mmap2 = perf_event__process_mmap2, |
863e451f | 366 | .comm = perf_event__process_comm, |
f62d3f0f ACM |
367 | .exit = perf_event__process_exit, |
368 | .fork = perf_event__process_fork, | |
863e451f | 369 | .lost = perf_event__process_lost, |
f3b3614a | 370 | .namespaces = perf_event__process_namespaces, |
0a8cb85c | 371 | .ordered_events = true, |
863e451f | 372 | .ordering_requires_timestamps = true, |
86a9eee0 ACM |
373 | }; |
374 | ||
863e451f JO |
375 | static struct perf_evsel *evsel_match(struct perf_evsel *evsel, |
376 | struct perf_evlist *evlist) | |
377 | { | |
378 | struct perf_evsel *e; | |
379 | ||
e5cadb93 | 380 | evlist__for_each_entry(evlist, e) { |
863e451f JO |
381 | if (perf_evsel__match2(evsel, e)) |
382 | return e; | |
0050f7aa | 383 | } |
863e451f JO |
384 | |
385 | return NULL; | |
386 | } | |
387 | ||
ce74f60e | 388 | static void perf_evlist__collapse_resort(struct perf_evlist *evlist) |
dd464345 JO |
389 | { |
390 | struct perf_evsel *evsel; | |
391 | ||
e5cadb93 | 392 | evlist__for_each_entry(evlist, evsel) { |
4ea062ed | 393 | struct hists *hists = evsel__hists(evsel); |
dd464345 | 394 | |
c1fb5651 | 395 | hists__collapse_resort(hists, NULL); |
dd464345 JO |
396 | } |
397 | } | |
398 | ||
ff21cef6 NK |
399 | static struct data__file *fmt_to_data_file(struct perf_hpp_fmt *fmt) |
400 | { | |
401 | struct diff_hpp_fmt *dfmt = container_of(fmt, struct diff_hpp_fmt, fmt); | |
402 | void *ptr = dfmt - dfmt->idx; | |
403 | struct data__file *d = container_of(ptr, struct data__file, fmt); | |
404 | ||
405 | return d; | |
406 | } | |
407 | ||
5f3f8d3b JO |
408 | static struct hist_entry* |
409 | get_pair_data(struct hist_entry *he, struct data__file *d) | |
410 | { | |
411 | if (hist_entry__has_pairs(he)) { | |
412 | struct hist_entry *pair; | |
413 | ||
414 | list_for_each_entry(pair, &he->pairs.head, pairs.node) | |
415 | if (pair->hists == d->hists) | |
416 | return pair; | |
417 | } | |
418 | ||
419 | return NULL; | |
420 | } | |
421 | ||
422 | static struct hist_entry* | |
423 | get_pair_fmt(struct hist_entry *he, struct diff_hpp_fmt *dfmt) | |
424 | { | |
ff21cef6 | 425 | struct data__file *d = fmt_to_data_file(&dfmt->fmt); |
5f3f8d3b JO |
426 | |
427 | return get_pair_data(he, d); | |
428 | } | |
429 | ||
a06d143e JO |
430 | static void hists__baseline_only(struct hists *hists) |
431 | { | |
ce74f60e NK |
432 | struct rb_root *root; |
433 | struct rb_node *next; | |
434 | ||
52225036 | 435 | if (hists__has(hists, need_collapse)) |
ce74f60e NK |
436 | root = &hists->entries_collapsed; |
437 | else | |
438 | root = hists->entries_in; | |
a06d143e | 439 | |
ce74f60e | 440 | next = rb_first(root); |
a06d143e | 441 | while (next != NULL) { |
ce74f60e | 442 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in); |
a06d143e | 443 | |
ce74f60e | 444 | next = rb_next(&he->rb_node_in); |
b821c732 | 445 | if (!hist_entry__next_pair(he)) { |
ce74f60e | 446 | rb_erase(&he->rb_node_in, root); |
6733d1bf | 447 | hist_entry__delete(he); |
a06d143e JO |
448 | } |
449 | } | |
450 | } | |
451 | ||
96c47f19 JO |
452 | static void hists__precompute(struct hists *hists) |
453 | { | |
367c53c0 JO |
454 | struct rb_root *root; |
455 | struct rb_node *next; | |
456 | ||
52225036 | 457 | if (hists__has(hists, need_collapse)) |
367c53c0 JO |
458 | root = &hists->entries_collapsed; |
459 | else | |
460 | root = hists->entries_in; | |
96c47f19 | 461 | |
367c53c0 | 462 | next = rb_first(root); |
96c47f19 | 463 | while (next != NULL) { |
5f3f8d3b | 464 | struct hist_entry *he, *pair; |
56495a8a NK |
465 | struct data__file *d; |
466 | int i; | |
96c47f19 | 467 | |
5f3f8d3b | 468 | he = rb_entry(next, struct hist_entry, rb_node_in); |
367c53c0 | 469 | next = rb_next(&he->rb_node_in); |
5f3f8d3b | 470 | |
56495a8a NK |
471 | data__for_each_file_new(i, d) { |
472 | pair = get_pair_data(he, d); | |
473 | if (!pair) | |
474 | continue; | |
475 | ||
476 | switch (compute) { | |
477 | case COMPUTE_DELTA: | |
a1668c25 | 478 | case COMPUTE_DELTA_ABS: |
56495a8a NK |
479 | compute_delta(he, pair); |
480 | break; | |
481 | case COMPUTE_RATIO: | |
482 | compute_ratio(he, pair); | |
483 | break; | |
484 | case COMPUTE_WEIGHTED_DIFF: | |
485 | compute_wdiff(he, pair); | |
486 | break; | |
487 | default: | |
488 | BUG_ON(1); | |
489 | } | |
96c47f19 JO |
490 | } |
491 | } | |
492 | } | |
493 | ||
494 | static int64_t cmp_doubles(double l, double r) | |
495 | { | |
496 | if (l > r) | |
497 | return -1; | |
498 | else if (l < r) | |
499 | return 1; | |
500 | else | |
501 | return 0; | |
502 | } | |
503 | ||
504 | static int64_t | |
5f3f8d3b | 505 | __hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, |
96c47f19 JO |
506 | int c) |
507 | { | |
508 | switch (c) { | |
509 | case COMPUTE_DELTA: | |
510 | { | |
511 | double l = left->diff.period_ratio_delta; | |
512 | double r = right->diff.period_ratio_delta; | |
513 | ||
514 | return cmp_doubles(l, r); | |
515 | } | |
a1668c25 NK |
516 | case COMPUTE_DELTA_ABS: |
517 | { | |
518 | double l = fabs(left->diff.period_ratio_delta); | |
519 | double r = fabs(right->diff.period_ratio_delta); | |
520 | ||
521 | return cmp_doubles(l, r); | |
522 | } | |
96c47f19 JO |
523 | case COMPUTE_RATIO: |
524 | { | |
525 | double l = left->diff.period_ratio; | |
526 | double r = right->diff.period_ratio; | |
527 | ||
528 | return cmp_doubles(l, r); | |
529 | } | |
81d5f958 JO |
530 | case COMPUTE_WEIGHTED_DIFF: |
531 | { | |
532 | s64 l = left->diff.wdiff; | |
533 | s64 r = right->diff.wdiff; | |
534 | ||
535 | return r - l; | |
536 | } | |
96c47f19 JO |
537 | default: |
538 | BUG_ON(1); | |
539 | } | |
540 | ||
541 | return 0; | |
542 | } | |
543 | ||
5f3f8d3b JO |
544 | static int64_t |
545 | hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, | |
56495a8a | 546 | int c, int sort_idx) |
5f3f8d3b JO |
547 | { |
548 | bool pairs_left = hist_entry__has_pairs(left); | |
549 | bool pairs_right = hist_entry__has_pairs(right); | |
550 | struct hist_entry *p_right, *p_left; | |
551 | ||
552 | if (!pairs_left && !pairs_right) | |
553 | return 0; | |
554 | ||
555 | if (!pairs_left || !pairs_right) | |
556 | return pairs_left ? -1 : 1; | |
557 | ||
56495a8a NK |
558 | p_left = get_pair_data(left, &data__files[sort_idx]); |
559 | p_right = get_pair_data(right, &data__files[sort_idx]); | |
5f3f8d3b JO |
560 | |
561 | if (!p_left && !p_right) | |
562 | return 0; | |
563 | ||
564 | if (!p_left || !p_right) | |
565 | return p_left ? -1 : 1; | |
566 | ||
567 | /* | |
568 | * We have 2 entries of same kind, let's | |
569 | * make the data comparison. | |
570 | */ | |
571 | return __hist_entry__cmp_compute(p_left, p_right, c); | |
572 | } | |
573 | ||
566b5cfb NK |
574 | static int64_t |
575 | hist_entry__cmp_compute_idx(struct hist_entry *left, struct hist_entry *right, | |
576 | int c, int sort_idx) | |
577 | { | |
578 | struct hist_entry *p_right, *p_left; | |
579 | ||
580 | p_left = get_pair_data(left, &data__files[sort_idx]); | |
581 | p_right = get_pair_data(right, &data__files[sort_idx]); | |
582 | ||
583 | if (!p_left && !p_right) | |
584 | return 0; | |
585 | ||
586 | if (!p_left || !p_right) | |
587 | return p_left ? -1 : 1; | |
588 | ||
a1668c25 | 589 | if (c != COMPUTE_DELTA && c != COMPUTE_DELTA_ABS) { |
566b5cfb NK |
590 | /* |
591 | * The delta can be computed without the baseline, but | |
592 | * others are not. Put those entries which have no | |
593 | * values below. | |
594 | */ | |
595 | if (left->dummy && right->dummy) | |
596 | return 0; | |
597 | ||
598 | if (left->dummy || right->dummy) | |
599 | return left->dummy ? 1 : -1; | |
600 | } | |
601 | ||
602 | return __hist_entry__cmp_compute(p_left, p_right, c); | |
603 | } | |
604 | ||
e7024fc3 | 605 | static int64_t |
87bbdf76 NK |
606 | hist_entry__cmp_nop(struct perf_hpp_fmt *fmt __maybe_unused, |
607 | struct hist_entry *left __maybe_unused, | |
e7024fc3 NK |
608 | struct hist_entry *right __maybe_unused) |
609 | { | |
610 | return 0; | |
611 | } | |
612 | ||
613 | static int64_t | |
87bbdf76 NK |
614 | hist_entry__cmp_baseline(struct perf_hpp_fmt *fmt __maybe_unused, |
615 | struct hist_entry *left, struct hist_entry *right) | |
e7024fc3 | 616 | { |
e7024fc3 NK |
617 | if (left->stat.period == right->stat.period) |
618 | return 0; | |
619 | return left->stat.period > right->stat.period ? 1 : -1; | |
620 | } | |
621 | ||
622 | static int64_t | |
56495a8a | 623 | hist_entry__cmp_delta(struct perf_hpp_fmt *fmt, |
87bbdf76 | 624 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 625 | { |
56495a8a NK |
626 | struct data__file *d = fmt_to_data_file(fmt); |
627 | ||
628 | return hist_entry__cmp_compute(right, left, COMPUTE_DELTA, d->idx); | |
e7024fc3 NK |
629 | } |
630 | ||
a1668c25 NK |
631 | static int64_t |
632 | hist_entry__cmp_delta_abs(struct perf_hpp_fmt *fmt, | |
633 | struct hist_entry *left, struct hist_entry *right) | |
634 | { | |
635 | struct data__file *d = fmt_to_data_file(fmt); | |
636 | ||
637 | return hist_entry__cmp_compute(right, left, COMPUTE_DELTA_ABS, d->idx); | |
638 | } | |
639 | ||
e7024fc3 | 640 | static int64_t |
56495a8a | 641 | hist_entry__cmp_ratio(struct perf_hpp_fmt *fmt, |
87bbdf76 | 642 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 643 | { |
56495a8a NK |
644 | struct data__file *d = fmt_to_data_file(fmt); |
645 | ||
646 | return hist_entry__cmp_compute(right, left, COMPUTE_RATIO, d->idx); | |
e7024fc3 NK |
647 | } |
648 | ||
649 | static int64_t | |
56495a8a | 650 | hist_entry__cmp_wdiff(struct perf_hpp_fmt *fmt, |
87bbdf76 | 651 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 652 | { |
56495a8a NK |
653 | struct data__file *d = fmt_to_data_file(fmt); |
654 | ||
655 | return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF, d->idx); | |
e7024fc3 NK |
656 | } |
657 | ||
566b5cfb NK |
658 | static int64_t |
659 | hist_entry__cmp_delta_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
660 | struct hist_entry *left, struct hist_entry *right) | |
661 | { | |
662 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_DELTA, | |
663 | sort_compute); | |
664 | } | |
665 | ||
a1668c25 NK |
666 | static int64_t |
667 | hist_entry__cmp_delta_abs_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
668 | struct hist_entry *left, struct hist_entry *right) | |
669 | { | |
670 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_DELTA_ABS, | |
671 | sort_compute); | |
672 | } | |
673 | ||
566b5cfb NK |
674 | static int64_t |
675 | hist_entry__cmp_ratio_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
676 | struct hist_entry *left, struct hist_entry *right) | |
677 | { | |
678 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_RATIO, | |
679 | sort_compute); | |
680 | } | |
681 | ||
682 | static int64_t | |
683 | hist_entry__cmp_wdiff_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
684 | struct hist_entry *left, struct hist_entry *right) | |
685 | { | |
686 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_WEIGHTED_DIFF, | |
687 | sort_compute); | |
688 | } | |
689 | ||
22aeb7f5 | 690 | static void hists__process(struct hists *hists) |
a06d143e | 691 | { |
a06d143e | 692 | if (show_baseline_only) |
22aeb7f5 | 693 | hists__baseline_only(hists); |
a06d143e | 694 | |
56495a8a | 695 | hists__precompute(hists); |
38259a17 | 696 | hists__output_resort(hists, NULL); |
96c47f19 | 697 | |
63b42fce | 698 | hists__fprintf(hists, !quiet, 0, 0, 0, stdout, |
d05e3aae | 699 | symbol_conf.use_callchain); |
a06d143e JO |
700 | } |
701 | ||
1d81c7fc JO |
702 | static void data__fprintf(void) |
703 | { | |
704 | struct data__file *d; | |
705 | int i; | |
706 | ||
707 | fprintf(stdout, "# Data files:\n"); | |
708 | ||
709 | data__for_each_file(i, d) | |
710 | fprintf(stdout, "# [%d] %s %s\n", | |
eae8ad80 | 711 | d->idx, d->data.file.path, |
1d81c7fc JO |
712 | !d->idx ? "(Baseline)" : ""); |
713 | ||
714 | fprintf(stdout, "#\n"); | |
715 | } | |
716 | ||
ec308426 | 717 | static void data_process(void) |
86a9eee0 | 718 | { |
22aeb7f5 JO |
719 | struct perf_evlist *evlist_base = data__files[0].session->evlist; |
720 | struct perf_evsel *evsel_base; | |
863e451f | 721 | bool first = true; |
86a9eee0 | 722 | |
e5cadb93 | 723 | evlist__for_each_entry(evlist_base, evsel_base) { |
4ea062ed | 724 | struct hists *hists_base = evsel__hists(evsel_base); |
22aeb7f5 JO |
725 | struct data__file *d; |
726 | int i; | |
86a9eee0 | 727 | |
22aeb7f5 JO |
728 | data__for_each_file_new(i, d) { |
729 | struct perf_evlist *evlist = d->session->evlist; | |
730 | struct perf_evsel *evsel; | |
4ea062ed | 731 | struct hists *hists; |
22aeb7f5 JO |
732 | |
733 | evsel = evsel_match(evsel_base, evlist); | |
734 | if (!evsel) | |
735 | continue; | |
736 | ||
4ea062ed ACM |
737 | hists = evsel__hists(evsel); |
738 | d->hists = hists; | |
22aeb7f5 | 739 | |
4ea062ed | 740 | hists__match(hists_base, hists); |
22aeb7f5 JO |
741 | |
742 | if (!show_baseline_only) | |
4ea062ed | 743 | hists__link(hists_base, hists); |
22aeb7f5 | 744 | } |
86a9eee0 | 745 | |
63b42fce NK |
746 | if (!quiet) { |
747 | fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", | |
748 | perf_evsel__name(evsel_base)); | |
749 | } | |
863e451f | 750 | |
ec308426 | 751 | first = false; |
863e451f | 752 | |
63b42fce | 753 | if (verbose > 0 || ((data__files_cnt > 2) && !quiet)) |
1d81c7fc JO |
754 | data__fprintf(); |
755 | ||
f9db0d0f KL |
756 | /* Don't sort callchain for perf diff */ |
757 | perf_evsel__reset_sample_bit(evsel_base, CALLCHAIN); | |
758 | ||
4ea062ed | 759 | hists__process(hists_base); |
ec308426 JO |
760 | } |
761 | } | |
863e451f | 762 | |
c818b498 JO |
763 | static void data__free(struct data__file *d) |
764 | { | |
765 | int col; | |
766 | ||
767 | for (col = 0; col < PERF_HPP_DIFF__MAX_INDEX; col++) { | |
768 | struct diff_hpp_fmt *fmt = &d->fmt[col]; | |
769 | ||
74cf249d | 770 | zfree(&fmt->header); |
c818b498 JO |
771 | } |
772 | } | |
773 | ||
ec308426 JO |
774 | static int __cmd_diff(void) |
775 | { | |
776 | struct data__file *d; | |
777 | int ret = -EINVAL, i; | |
778 | ||
779 | data__for_each_file(i, d) { | |
8ceb41d7 | 780 | d->session = perf_session__new(&d->data, false, &tool); |
ec308426 | 781 | if (!d->session) { |
eae8ad80 | 782 | pr_err("Failed to open %s\n", d->data.file.path); |
52e02834 | 783 | ret = -1; |
ec308426 JO |
784 | goto out_delete; |
785 | } | |
863e451f | 786 | |
b7b61cbe | 787 | ret = perf_session__process_events(d->session); |
ec308426 | 788 | if (ret) { |
eae8ad80 | 789 | pr_err("Failed to process %s\n", d->data.file.path); |
ec308426 JO |
790 | goto out_delete; |
791 | } | |
863e451f | 792 | |
ec308426 JO |
793 | perf_evlist__collapse_resort(d->session->evlist); |
794 | } | |
795 | ||
796 | data_process(); | |
863e451f | 797 | |
ec308426 JO |
798 | out_delete: |
799 | data__for_each_file(i, d) { | |
e1446551 | 800 | perf_session__delete(d->session); |
c818b498 | 801 | data__free(d); |
863e451f | 802 | } |
9c443dfd | 803 | |
ec308426 | 804 | free(data__files); |
86a9eee0 ACM |
805 | return ret; |
806 | } | |
807 | ||
0422a4fc | 808 | static const char * const diff_usage[] = { |
86a9eee0 | 809 | "perf diff [<options>] [old_file] [new_file]", |
0422a4fc | 810 | NULL, |
86a9eee0 ACM |
811 | }; |
812 | ||
813 | static const struct option options[] = { | |
c0555642 | 814 | OPT_INCR('v', "verbose", &verbose, |
86a9eee0 | 815 | "be more verbose (show symbol address, etc)"), |
63b42fce | 816 | OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"), |
a06d143e JO |
817 | OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, |
818 | "Show only items with match in baseline"), | |
81d5f958 | 819 | OPT_CALLBACK('c', "compute", &compute, |
be57b3fd | 820 | "delta,delta-abs,ratio,wdiff:w1,w2 (default delta-abs)", |
7aaf6b35 JO |
821 | "Entries differential computation selection", |
822 | setup_compute), | |
61949b21 JO |
823 | OPT_BOOLEAN('p', "period", &show_period, |
824 | "Show period values."), | |
ed279da2 JO |
825 | OPT_BOOLEAN('F', "formula", &show_formula, |
826 | "Show formula."), | |
86a9eee0 ACM |
827 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
828 | "dump raw trace in ASCII"), | |
829 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
6b1f3423 DA |
830 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
831 | "file", "kallsyms pathname"), | |
86a9eee0 ACM |
832 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, |
833 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
c410a338 ACM |
834 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
835 | "only consider symbols in these dsos"), | |
836 | OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
837 | "only consider symbols in these comms"), | |
838 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
839 | "only consider these symbols"), | |
c351c281 | 840 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
841 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
842 | " Please refer the man page for the complete list."), | |
8b8ca6e1 | 843 | OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator", |
c351c281 ACM |
844 | "separator for columns, no spaces will be added between " |
845 | "columns '.' is reserved."), | |
a7066709 HK |
846 | OPT_CALLBACK(0, "symfs", NULL, "directory", |
847 | "Look for files with symbols relative to this directory", | |
848 | symbol__config_symfs), | |
5f3f8d3b | 849 | OPT_UINTEGER('o', "order", &sort_compute, "Specify compute sorting."), |
8810f6ce NK |
850 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
851 | "How to display percentage of filtered entries", parse_filter_percentage), | |
86a9eee0 ACM |
852 | OPT_END() |
853 | }; | |
854 | ||
345dc0b4 | 855 | static double baseline_percent(struct hist_entry *he) |
1d77822e | 856 | { |
8810f6ce NK |
857 | u64 total = hists__total_period(he->hists); |
858 | ||
859 | return 100.0 * he->stat.period / total; | |
345dc0b4 | 860 | } |
7aaf6b35 | 861 | |
345dc0b4 JO |
862 | static int hpp__color_baseline(struct perf_hpp_fmt *fmt, |
863 | struct perf_hpp *hpp, struct hist_entry *he) | |
864 | { | |
865 | struct diff_hpp_fmt *dfmt = | |
866 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
867 | double percent = baseline_percent(he); | |
868 | char pfmt[20] = " "; | |
869 | ||
870 | if (!he->dummy) { | |
871 | scnprintf(pfmt, 20, "%%%d.2f%%%%", dfmt->header_width - 1); | |
872 | return percent_color_snprintf(hpp->buf, hpp->size, | |
873 | pfmt, percent); | |
874 | } else | |
875 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
876 | dfmt->header_width, pfmt); | |
877 | } | |
878 | ||
879 | static int hpp__entry_baseline(struct hist_entry *he, char *buf, size_t size) | |
880 | { | |
881 | double percent = baseline_percent(he); | |
882 | const char *fmt = symbol_conf.field_sep ? "%.2f" : "%6.2f%%"; | |
883 | int ret = 0; | |
884 | ||
885 | if (!he->dummy) | |
886 | ret = scnprintf(buf, size, fmt, percent); | |
887 | ||
888 | return ret; | |
889 | } | |
890 | ||
01f10bc8 RR |
891 | static int __hpp__color_compare(struct perf_hpp_fmt *fmt, |
892 | struct perf_hpp *hpp, struct hist_entry *he, | |
893 | int comparison_method) | |
894 | { | |
895 | struct diff_hpp_fmt *dfmt = | |
896 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
897 | struct hist_entry *pair = get_pair_fmt(he, dfmt); | |
898 | double diff; | |
a5846e21 | 899 | s64 wdiff; |
01f10bc8 RR |
900 | char pfmt[20] = " "; |
901 | ||
902 | if (!pair) | |
ec3d07cb | 903 | goto no_print; |
01f10bc8 RR |
904 | |
905 | switch (comparison_method) { | |
906 | case COMPUTE_DELTA: | |
907 | if (pair->diff.computed) | |
908 | diff = pair->diff.period_ratio_delta; | |
909 | else | |
910 | diff = compute_delta(he, pair); | |
911 | ||
01f10bc8 RR |
912 | scnprintf(pfmt, 20, "%%%+d.2f%%%%", dfmt->header_width - 1); |
913 | return percent_color_snprintf(hpp->buf, hpp->size, | |
914 | pfmt, diff); | |
1f513b2c RR |
915 | case COMPUTE_RATIO: |
916 | if (he->dummy) | |
917 | goto dummy_print; | |
918 | if (pair->diff.computed) | |
919 | diff = pair->diff.period_ratio; | |
920 | else | |
921 | diff = compute_ratio(he, pair); | |
922 | ||
923 | scnprintf(pfmt, 20, "%%%d.6f", dfmt->header_width); | |
924 | return value_color_snprintf(hpp->buf, hpp->size, | |
925 | pfmt, diff); | |
a5846e21 RR |
926 | case COMPUTE_WEIGHTED_DIFF: |
927 | if (he->dummy) | |
928 | goto dummy_print; | |
929 | if (pair->diff.computed) | |
930 | wdiff = pair->diff.wdiff; | |
931 | else | |
932 | wdiff = compute_wdiff(he, pair); | |
933 | ||
934 | scnprintf(pfmt, 20, "%%14ld", dfmt->header_width); | |
935 | return color_snprintf(hpp->buf, hpp->size, | |
936 | get_percent_color(wdiff), | |
937 | pfmt, wdiff); | |
01f10bc8 RR |
938 | default: |
939 | BUG_ON(1); | |
940 | } | |
941 | dummy_print: | |
ec3d07cb NK |
942 | return scnprintf(hpp->buf, hpp->size, "%*s", |
943 | dfmt->header_width, "N/A"); | |
944 | no_print: | |
01f10bc8 RR |
945 | return scnprintf(hpp->buf, hpp->size, "%*s", |
946 | dfmt->header_width, pfmt); | |
947 | } | |
948 | ||
949 | static int hpp__color_delta(struct perf_hpp_fmt *fmt, | |
950 | struct perf_hpp *hpp, struct hist_entry *he) | |
951 | { | |
952 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_DELTA); | |
953 | } | |
954 | ||
1f513b2c RR |
955 | static int hpp__color_ratio(struct perf_hpp_fmt *fmt, |
956 | struct perf_hpp *hpp, struct hist_entry *he) | |
957 | { | |
958 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_RATIO); | |
959 | } | |
960 | ||
a5846e21 RR |
961 | static int hpp__color_wdiff(struct perf_hpp_fmt *fmt, |
962 | struct perf_hpp *hpp, struct hist_entry *he) | |
963 | { | |
964 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_WEIGHTED_DIFF); | |
965 | } | |
966 | ||
345dc0b4 JO |
967 | static void |
968 | hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size) | |
969 | { | |
970 | switch (idx) { | |
971 | case PERF_HPP_DIFF__PERIOD_BASELINE: | |
972 | scnprintf(buf, size, "%" PRIu64, he->stat.period); | |
7aaf6b35 | 973 | break; |
345dc0b4 JO |
974 | |
975 | default: | |
81d5f958 | 976 | break; |
345dc0b4 JO |
977 | } |
978 | } | |
979 | ||
980 | static void | |
981 | hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair, | |
982 | int idx, char *buf, size_t size) | |
983 | { | |
984 | double diff; | |
985 | double ratio; | |
986 | s64 wdiff; | |
987 | ||
988 | switch (idx) { | |
989 | case PERF_HPP_DIFF__DELTA: | |
a1668c25 | 990 | case PERF_HPP_DIFF__DELTA_ABS: |
345dc0b4 JO |
991 | if (pair->diff.computed) |
992 | diff = pair->diff.period_ratio_delta; | |
993 | else | |
ef358e6d | 994 | diff = compute_delta(he, pair); |
345dc0b4 | 995 | |
ec3d07cb | 996 | scnprintf(buf, size, "%+4.2F%%", diff); |
345dc0b4 JO |
997 | break; |
998 | ||
999 | case PERF_HPP_DIFF__RATIO: | |
1000 | /* No point for ratio number if we are dummy.. */ | |
ec3d07cb NK |
1001 | if (he->dummy) { |
1002 | scnprintf(buf, size, "N/A"); | |
345dc0b4 | 1003 | break; |
ec3d07cb | 1004 | } |
345dc0b4 JO |
1005 | |
1006 | if (pair->diff.computed) | |
1007 | ratio = pair->diff.period_ratio; | |
1008 | else | |
ef358e6d | 1009 | ratio = compute_ratio(he, pair); |
345dc0b4 JO |
1010 | |
1011 | if (ratio > 0.0) | |
1012 | scnprintf(buf, size, "%14.6F", ratio); | |
1013 | break; | |
1014 | ||
1015 | case PERF_HPP_DIFF__WEIGHTED_DIFF: | |
1016 | /* No point for wdiff number if we are dummy.. */ | |
ec3d07cb NK |
1017 | if (he->dummy) { |
1018 | scnprintf(buf, size, "N/A"); | |
345dc0b4 | 1019 | break; |
ec3d07cb | 1020 | } |
345dc0b4 JO |
1021 | |
1022 | if (pair->diff.computed) | |
1023 | wdiff = pair->diff.wdiff; | |
1024 | else | |
ef358e6d | 1025 | wdiff = compute_wdiff(he, pair); |
345dc0b4 JO |
1026 | |
1027 | if (wdiff != 0) | |
1028 | scnprintf(buf, size, "%14ld", wdiff); | |
1029 | break; | |
1030 | ||
1031 | case PERF_HPP_DIFF__FORMULA: | |
ef358e6d | 1032 | formula_fprintf(he, pair, buf, size); |
7aaf6b35 | 1033 | break; |
345dc0b4 JO |
1034 | |
1035 | case PERF_HPP_DIFF__PERIOD: | |
1036 | scnprintf(buf, size, "%" PRIu64, pair->stat.period); | |
1037 | break; | |
1038 | ||
7aaf6b35 JO |
1039 | default: |
1040 | BUG_ON(1); | |
1041 | }; | |
345dc0b4 JO |
1042 | } |
1043 | ||
1044 | static void | |
22aeb7f5 JO |
1045 | __hpp__entry_global(struct hist_entry *he, struct diff_hpp_fmt *dfmt, |
1046 | char *buf, size_t size) | |
345dc0b4 | 1047 | { |
5f3f8d3b | 1048 | struct hist_entry *pair = get_pair_fmt(he, dfmt); |
22aeb7f5 | 1049 | int idx = dfmt->idx; |
345dc0b4 JO |
1050 | |
1051 | /* baseline is special */ | |
1052 | if (idx == PERF_HPP_DIFF__BASELINE) | |
1053 | hpp__entry_baseline(he, buf, size); | |
1054 | else { | |
1055 | if (pair) | |
1056 | hpp__entry_pair(he, pair, idx, buf, size); | |
1057 | else | |
1058 | hpp__entry_unpair(he, idx, buf, size); | |
1059 | } | |
1060 | } | |
1061 | ||
1062 | static int hpp__entry_global(struct perf_hpp_fmt *_fmt, struct perf_hpp *hpp, | |
1063 | struct hist_entry *he) | |
1064 | { | |
1065 | struct diff_hpp_fmt *dfmt = | |
1066 | container_of(_fmt, struct diff_hpp_fmt, fmt); | |
1067 | char buf[MAX_COL_WIDTH] = " "; | |
1068 | ||
22aeb7f5 | 1069 | __hpp__entry_global(he, dfmt, buf, MAX_COL_WIDTH); |
345dc0b4 JO |
1070 | |
1071 | if (symbol_conf.field_sep) | |
1072 | return scnprintf(hpp->buf, hpp->size, "%s", buf); | |
1073 | else | |
1074 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
1075 | dfmt->header_width, buf); | |
1076 | } | |
1077 | ||
94a0793d | 1078 | static int hpp__header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, |
74bb43f2 | 1079 | struct hists *hists __maybe_unused, |
29659ab4 JO |
1080 | int line __maybe_unused, |
1081 | int *span __maybe_unused) | |
345dc0b4 JO |
1082 | { |
1083 | struct diff_hpp_fmt *dfmt = | |
1084 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1085 | ||
1086 | BUG_ON(!dfmt->header); | |
1087 | return scnprintf(hpp->buf, hpp->size, dfmt->header); | |
1088 | } | |
1089 | ||
1090 | static int hpp__width(struct perf_hpp_fmt *fmt, | |
94a0793d | 1091 | struct perf_hpp *hpp __maybe_unused, |
da1b0407 | 1092 | struct hists *hists __maybe_unused) |
345dc0b4 JO |
1093 | { |
1094 | struct diff_hpp_fmt *dfmt = | |
1095 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1096 | ||
1097 | BUG_ON(dfmt->header_width <= 0); | |
1098 | return dfmt->header_width; | |
1099 | } | |
1100 | ||
22aeb7f5 | 1101 | static void init_header(struct data__file *d, struct diff_hpp_fmt *dfmt) |
345dc0b4 JO |
1102 | { |
1103 | #define MAX_HEADER_NAME 100 | |
1104 | char buf_indent[MAX_HEADER_NAME]; | |
1105 | char buf[MAX_HEADER_NAME]; | |
1106 | const char *header = NULL; | |
1107 | int width = 0; | |
1108 | ||
1109 | BUG_ON(dfmt->idx >= PERF_HPP_DIFF__MAX_INDEX); | |
1110 | header = columns[dfmt->idx].name; | |
1111 | width = columns[dfmt->idx].width; | |
1112 | ||
1113 | /* Only our defined HPP fmts should appear here. */ | |
1114 | BUG_ON(!header); | |
1115 | ||
22aeb7f5 JO |
1116 | if (data__files_cnt > 2) |
1117 | scnprintf(buf, MAX_HEADER_NAME, "%s/%d", header, d->idx); | |
1118 | ||
345dc0b4 JO |
1119 | #define NAME (data__files_cnt > 2 ? buf : header) |
1120 | dfmt->header_width = width; | |
1121 | width = (int) strlen(NAME); | |
1122 | if (dfmt->header_width < width) | |
1123 | dfmt->header_width = width; | |
1124 | ||
1125 | scnprintf(buf_indent, MAX_HEADER_NAME, "%*s", | |
1126 | dfmt->header_width, NAME); | |
1127 | ||
1128 | dfmt->header = strdup(buf_indent); | |
1129 | #undef MAX_HEADER_NAME | |
1130 | #undef NAME | |
1131 | } | |
1132 | ||
c818b498 | 1133 | static void data__hpp_register(struct data__file *d, int idx) |
345dc0b4 | 1134 | { |
c818b498 JO |
1135 | struct diff_hpp_fmt *dfmt = &d->fmt[idx]; |
1136 | struct perf_hpp_fmt *fmt = &dfmt->fmt; | |
1137 | ||
1138 | dfmt->idx = idx; | |
1139 | ||
1140 | fmt->header = hpp__header; | |
1141 | fmt->width = hpp__width; | |
1142 | fmt->entry = hpp__entry_global; | |
e7024fc3 NK |
1143 | fmt->cmp = hist_entry__cmp_nop; |
1144 | fmt->collapse = hist_entry__cmp_nop; | |
c818b498 JO |
1145 | |
1146 | /* TODO more colors */ | |
01f10bc8 RR |
1147 | switch (idx) { |
1148 | case PERF_HPP_DIFF__BASELINE: | |
c818b498 | 1149 | fmt->color = hpp__color_baseline; |
e7024fc3 | 1150 | fmt->sort = hist_entry__cmp_baseline; |
01f10bc8 RR |
1151 | break; |
1152 | case PERF_HPP_DIFF__DELTA: | |
1153 | fmt->color = hpp__color_delta; | |
e7024fc3 | 1154 | fmt->sort = hist_entry__cmp_delta; |
01f10bc8 | 1155 | break; |
1f513b2c RR |
1156 | case PERF_HPP_DIFF__RATIO: |
1157 | fmt->color = hpp__color_ratio; | |
e7024fc3 | 1158 | fmt->sort = hist_entry__cmp_ratio; |
1f513b2c | 1159 | break; |
a5846e21 RR |
1160 | case PERF_HPP_DIFF__WEIGHTED_DIFF: |
1161 | fmt->color = hpp__color_wdiff; | |
e7024fc3 | 1162 | fmt->sort = hist_entry__cmp_wdiff; |
a5846e21 | 1163 | break; |
a1668c25 NK |
1164 | case PERF_HPP_DIFF__DELTA_ABS: |
1165 | fmt->color = hpp__color_delta; | |
1166 | fmt->sort = hist_entry__cmp_delta_abs; | |
1167 | break; | |
01f10bc8 | 1168 | default: |
e7024fc3 | 1169 | fmt->sort = hist_entry__cmp_nop; |
01f10bc8 RR |
1170 | break; |
1171 | } | |
345dc0b4 | 1172 | |
22aeb7f5 | 1173 | init_header(d, dfmt); |
c818b498 | 1174 | perf_hpp__column_register(fmt); |
e7024fc3 | 1175 | perf_hpp__register_sort_field(fmt); |
345dc0b4 JO |
1176 | } |
1177 | ||
566b5cfb | 1178 | static int ui_init(void) |
345dc0b4 | 1179 | { |
c818b498 | 1180 | struct data__file *d; |
566b5cfb | 1181 | struct perf_hpp_fmt *fmt; |
c818b498 JO |
1182 | int i; |
1183 | ||
1184 | data__for_each_file(i, d) { | |
1185 | ||
1186 | /* | |
1187 | * Baseline or compute realted columns: | |
1188 | * | |
1189 | * PERF_HPP_DIFF__BASELINE | |
1190 | * PERF_HPP_DIFF__DELTA | |
1191 | * PERF_HPP_DIFF__RATIO | |
1192 | * PERF_HPP_DIFF__WEIGHTED_DIFF | |
1193 | */ | |
1194 | data__hpp_register(d, i ? compute_2_hpp[compute] : | |
1195 | PERF_HPP_DIFF__BASELINE); | |
1d77822e | 1196 | |
c818b498 JO |
1197 | /* |
1198 | * And the rest: | |
1199 | * | |
1200 | * PERF_HPP_DIFF__FORMULA | |
1201 | * PERF_HPP_DIFF__PERIOD | |
1202 | * PERF_HPP_DIFF__PERIOD_BASELINE | |
1203 | */ | |
1204 | if (show_formula && i) | |
1205 | data__hpp_register(d, PERF_HPP_DIFF__FORMULA); | |
ed279da2 | 1206 | |
c818b498 JO |
1207 | if (show_period) |
1208 | data__hpp_register(d, i ? PERF_HPP_DIFF__PERIOD : | |
1209 | PERF_HPP_DIFF__PERIOD_BASELINE); | |
61949b21 | 1210 | } |
566b5cfb NK |
1211 | |
1212 | if (!sort_compute) | |
1213 | return 0; | |
1214 | ||
1215 | /* | |
1216 | * Prepend an fmt to sort on columns at 'sort_compute' first. | |
1217 | * This fmt is added only to the sort list but not to the | |
1218 | * output fields list. | |
1219 | * | |
1220 | * Note that this column (data) can be compared twice - one | |
1221 | * for this 'sort_compute' fmt and another for the normal | |
1222 | * diff_hpp_fmt. But it shouldn't a problem as most entries | |
1223 | * will be sorted out by first try or baseline and comparing | |
1224 | * is not a costly operation. | |
1225 | */ | |
1226 | fmt = zalloc(sizeof(*fmt)); | |
1227 | if (fmt == NULL) { | |
1228 | pr_err("Memory allocation failed\n"); | |
1229 | return -1; | |
1230 | } | |
1231 | ||
1232 | fmt->cmp = hist_entry__cmp_nop; | |
1233 | fmt->collapse = hist_entry__cmp_nop; | |
1234 | ||
1235 | switch (compute) { | |
1236 | case COMPUTE_DELTA: | |
1237 | fmt->sort = hist_entry__cmp_delta_idx; | |
1238 | break; | |
1239 | case COMPUTE_RATIO: | |
1240 | fmt->sort = hist_entry__cmp_ratio_idx; | |
1241 | break; | |
1242 | case COMPUTE_WEIGHTED_DIFF: | |
1243 | fmt->sort = hist_entry__cmp_wdiff_idx; | |
1244 | break; | |
a1668c25 NK |
1245 | case COMPUTE_DELTA_ABS: |
1246 | fmt->sort = hist_entry__cmp_delta_abs_idx; | |
1247 | break; | |
566b5cfb NK |
1248 | default: |
1249 | BUG_ON(1); | |
1250 | } | |
1251 | ||
a1c9f97f | 1252 | perf_hpp__prepend_sort_field(fmt); |
566b5cfb | 1253 | return 0; |
1d77822e JO |
1254 | } |
1255 | ||
ec308426 | 1256 | static int data_init(int argc, const char **argv) |
86a9eee0 | 1257 | { |
ec308426 JO |
1258 | struct data__file *d; |
1259 | static const char *defaults[] = { | |
1260 | "perf.data.old", | |
1261 | "perf.data", | |
1262 | }; | |
22aeb7f5 | 1263 | bool use_default = true; |
ec308426 JO |
1264 | int i; |
1265 | ||
1266 | data__files_cnt = 2; | |
1267 | ||
86a9eee0 | 1268 | if (argc) { |
22aeb7f5 | 1269 | if (argc == 1) |
ec308426 | 1270 | defaults[1] = argv[0]; |
22aeb7f5 JO |
1271 | else { |
1272 | data__files_cnt = argc; | |
1273 | use_default = false; | |
1274 | } | |
d8d9608f | 1275 | } else if (perf_guest) { |
ec308426 JO |
1276 | defaults[0] = "perf.data.host"; |
1277 | defaults[1] = "perf.data.guest"; | |
86a9eee0 ACM |
1278 | } |
1279 | ||
5f3f8d3b JO |
1280 | if (sort_compute >= (unsigned int) data__files_cnt) { |
1281 | pr_err("Order option out of limit.\n"); | |
1282 | return -EINVAL; | |
1283 | } | |
1284 | ||
ec308426 JO |
1285 | data__files = zalloc(sizeof(*data__files) * data__files_cnt); |
1286 | if (!data__files) | |
1287 | return -ENOMEM; | |
1288 | ||
1289 | data__for_each_file(i, d) { | |
8ceb41d7 | 1290 | struct perf_data *data = &d->data; |
f5fc1412 | 1291 | |
eae8ad80 JO |
1292 | data->file.path = use_default ? defaults[i] : argv[i]; |
1293 | data->mode = PERF_DATA_MODE_READ, | |
1294 | data->force = force, | |
f5fc1412 | 1295 | |
ec308426 JO |
1296 | d->idx = i; |
1297 | } | |
1298 | ||
1299 | return 0; | |
1300 | } | |
1301 | ||
d49dd15d NK |
1302 | static int diff__config(const char *var, const char *value, |
1303 | void *cb __maybe_unused) | |
1304 | { | |
1305 | if (!strcmp(var, "diff.order")) { | |
25ce4bb8 ACM |
1306 | int ret; |
1307 | if (perf_config_int(&ret, var, value) < 0) | |
1308 | return -1; | |
1309 | sort_compute = ret; | |
d49dd15d NK |
1310 | return 0; |
1311 | } | |
4b35994a NK |
1312 | if (!strcmp(var, "diff.compute")) { |
1313 | if (!strcmp(value, "delta")) { | |
1314 | compute = COMPUTE_DELTA; | |
1315 | } else if (!strcmp(value, "delta-abs")) { | |
1316 | compute = COMPUTE_DELTA_ABS; | |
1317 | } else if (!strcmp(value, "ratio")) { | |
1318 | compute = COMPUTE_RATIO; | |
1319 | } else if (!strcmp(value, "wdiff")) { | |
1320 | compute = COMPUTE_WEIGHTED_DIFF; | |
1321 | } else { | |
1322 | pr_err("Invalid compute method: %s\n", value); | |
1323 | return -1; | |
1324 | } | |
1325 | } | |
d49dd15d NK |
1326 | |
1327 | return 0; | |
1328 | } | |
1329 | ||
b0ad8ea6 | 1330 | int cmd_diff(int argc, const char **argv) |
ec308426 | 1331 | { |
9ab1f508 KL |
1332 | int ret = hists__init(); |
1333 | ||
1334 | if (ret < 0) | |
1335 | return ret; | |
1336 | ||
d49dd15d NK |
1337 | perf_config(diff__config, NULL); |
1338 | ||
ec308426 JO |
1339 | argc = parse_options(argc, argv, options, diff_usage, 0); |
1340 | ||
63b42fce NK |
1341 | if (quiet) |
1342 | perf_quiet_option(); | |
1343 | ||
0a7e6d1b | 1344 | if (symbol__init(NULL) < 0) |
655000e7 ACM |
1345 | return -1; |
1346 | ||
ec308426 JO |
1347 | if (data_init(argc, argv) < 0) |
1348 | return -1; | |
1349 | ||
566b5cfb NK |
1350 | if (ui_init() < 0) |
1351 | return -1; | |
1d77822e | 1352 | |
512ae1bd NK |
1353 | sort__mode = SORT_MODE__DIFF; |
1354 | ||
40184c46 | 1355 | if (setup_sorting(NULL) < 0) |
55309985 NK |
1356 | usage_with_options(diff_usage, options); |
1357 | ||
86a9eee0 | 1358 | setup_pager(); |
c351c281 | 1359 | |
08e71542 | 1360 | sort__setup_elide(NULL); |
c351c281 | 1361 | |
86a9eee0 ACM |
1362 | return __cmd_diff(); |
1363 | } |