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