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