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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
86a9eee0 ACM |
2 | /* |
3 | * builtin-diff.c | |
4 | * | |
5 | * Builtin diff command: Analyze two perf.data input files, look up and read | |
6 | * DSOs and symbol information, sort them and produce a diff. | |
7 | */ | |
8 | #include "builtin.h" | |
9 | ||
10 | #include "util/debug.h" | |
11 | #include "util/event.h" | |
12 | #include "util/hist.h" | |
743eb868 | 13 | #include "util/evsel.h" |
863e451f | 14 | #include "util/evlist.h" |
86a9eee0 | 15 | #include "util/session.h" |
45694aa7 | 16 | #include "util/tool.h" |
86a9eee0 | 17 | #include "util/sort.h" |
97b9d866 | 18 | #include "util/srcline.h" |
86a9eee0 | 19 | #include "util/symbol.h" |
f5fc1412 | 20 | #include "util/data.h" |
d49dd15d | 21 | #include "util/config.h" |
4802138d | 22 | #include "util/time-utils.h" |
99150a1f | 23 | #include "util/annotate.h" |
b10c78c5 | 24 | #include "util/map.h" |
cebf7d51 | 25 | #include "util/spark.h" |
60414418 | 26 | #include "util/block-info.h" |
2a09a84c | 27 | #include "util/stream.h" |
ea0c5239 | 28 | #include "util/util.h" |
6ef81c55 | 29 | #include <linux/err.h> |
7f7c536f | 30 | #include <linux/zalloc.h> |
8520a98d | 31 | #include <subcmd/pager.h> |
97b9d866 | 32 | #include <subcmd/parse-options.h> |
86a9eee0 | 33 | |
a43783ae | 34 | #include <errno.h> |
fd20e811 | 35 | #include <inttypes.h> |
86a9eee0 | 36 | #include <stdlib.h> |
345dc0b4 JO |
37 | #include <math.h> |
38 | ||
4802138d JY |
39 | struct perf_diff { |
40 | struct perf_tool tool; | |
41 | const char *time_str; | |
42 | struct perf_time_interval *ptime_range; | |
43 | int range_size; | |
44 | int range_num; | |
30d81553 | 45 | bool has_br_stack; |
2a09a84c | 46 | bool stream; |
4802138d JY |
47 | }; |
48 | ||
345dc0b4 JO |
49 | /* Diff command specific HPP columns. */ |
50 | enum { | |
51 | PERF_HPP_DIFF__BASELINE, | |
52 | PERF_HPP_DIFF__PERIOD, | |
53 | PERF_HPP_DIFF__PERIOD_BASELINE, | |
54 | PERF_HPP_DIFF__DELTA, | |
55 | PERF_HPP_DIFF__RATIO, | |
56 | PERF_HPP_DIFF__WEIGHTED_DIFF, | |
57 | PERF_HPP_DIFF__FORMULA, | |
a1668c25 | 58 | PERF_HPP_DIFF__DELTA_ABS, |
b10c78c5 | 59 | PERF_HPP_DIFF__CYCLES, |
cebf7d51 | 60 | PERF_HPP_DIFF__CYCLES_HIST, |
345dc0b4 JO |
61 | |
62 | PERF_HPP_DIFF__MAX_INDEX | |
63 | }; | |
64 | ||
65 | struct diff_hpp_fmt { | |
66 | struct perf_hpp_fmt fmt; | |
67 | int idx; | |
68 | char *header; | |
69 | int header_width; | |
70 | }; | |
86a9eee0 | 71 | |
ec308426 JO |
72 | struct data__file { |
73 | struct perf_session *session; | |
8ceb41d7 | 74 | struct perf_data data; |
ec308426 | 75 | int idx; |
22aeb7f5 | 76 | struct hists *hists; |
2a09a84c | 77 | struct evlist_streams *evlist_streams; |
c818b498 | 78 | struct diff_hpp_fmt fmt[PERF_HPP_DIFF__MAX_INDEX]; |
ec308426 JO |
79 | }; |
80 | ||
81 | static struct data__file *data__files; | |
82 | static int data__files_cnt; | |
83 | ||
84 | #define data__for_each_file_start(i, d, s) \ | |
85 | for (i = s, d = &data__files[s]; \ | |
86 | i < data__files_cnt; \ | |
87 | i++, d = &data__files[i]) | |
88 | ||
89 | #define data__for_each_file(i, d) data__for_each_file_start(i, d, 0) | |
22aeb7f5 | 90 | #define data__for_each_file_new(i, d) data__for_each_file_start(i, d, 1) |
ec308426 | 91 | |
ec308426 | 92 | static bool force; |
61949b21 | 93 | static bool show_period; |
ed279da2 | 94 | static bool show_formula; |
a06d143e | 95 | static bool show_baseline_only; |
cebf7d51 | 96 | static bool cycles_hist; |
be57b3fd | 97 | static unsigned int sort_compute = 1; |
86a9eee0 | 98 | |
81d5f958 JO |
99 | static s64 compute_wdiff_w1; |
100 | static s64 compute_wdiff_w2; | |
101 | ||
daca23b2 JY |
102 | static const char *cpu_list; |
103 | static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); | |
104 | ||
7aaf6b35 JO |
105 | enum { |
106 | COMPUTE_DELTA, | |
107 | COMPUTE_RATIO, | |
81d5f958 | 108 | COMPUTE_WEIGHTED_DIFF, |
a1668c25 | 109 | COMPUTE_DELTA_ABS, |
99150a1f | 110 | COMPUTE_CYCLES, |
7aaf6b35 | 111 | COMPUTE_MAX, |
2a09a84c | 112 | COMPUTE_STREAM, /* After COMPUTE_MAX to avoid use current compute arrays */ |
7aaf6b35 JO |
113 | }; |
114 | ||
115 | const char *compute_names[COMPUTE_MAX] = { | |
116 | [COMPUTE_DELTA] = "delta", | |
a1668c25 | 117 | [COMPUTE_DELTA_ABS] = "delta-abs", |
7aaf6b35 | 118 | [COMPUTE_RATIO] = "ratio", |
81d5f958 | 119 | [COMPUTE_WEIGHTED_DIFF] = "wdiff", |
99150a1f | 120 | [COMPUTE_CYCLES] = "cycles", |
7aaf6b35 JO |
121 | }; |
122 | ||
be57b3fd | 123 | static int compute = COMPUTE_DELTA_ABS; |
7aaf6b35 | 124 | |
345dc0b4 JO |
125 | static int compute_2_hpp[COMPUTE_MAX] = { |
126 | [COMPUTE_DELTA] = PERF_HPP_DIFF__DELTA, | |
a1668c25 | 127 | [COMPUTE_DELTA_ABS] = PERF_HPP_DIFF__DELTA_ABS, |
345dc0b4 JO |
128 | [COMPUTE_RATIO] = PERF_HPP_DIFF__RATIO, |
129 | [COMPUTE_WEIGHTED_DIFF] = PERF_HPP_DIFF__WEIGHTED_DIFF, | |
b10c78c5 | 130 | [COMPUTE_CYCLES] = PERF_HPP_DIFF__CYCLES, |
345dc0b4 JO |
131 | }; |
132 | ||
133 | #define MAX_COL_WIDTH 70 | |
134 | ||
135 | static struct header_column { | |
136 | const char *name; | |
137 | int width; | |
138 | } columns[PERF_HPP_DIFF__MAX_INDEX] = { | |
139 | [PERF_HPP_DIFF__BASELINE] = { | |
140 | .name = "Baseline", | |
141 | }, | |
142 | [PERF_HPP_DIFF__PERIOD] = { | |
143 | .name = "Period", | |
144 | .width = 14, | |
145 | }, | |
146 | [PERF_HPP_DIFF__PERIOD_BASELINE] = { | |
147 | .name = "Base period", | |
148 | .width = 14, | |
149 | }, | |
150 | [PERF_HPP_DIFF__DELTA] = { | |
151 | .name = "Delta", | |
152 | .width = 7, | |
153 | }, | |
a1668c25 NK |
154 | [PERF_HPP_DIFF__DELTA_ABS] = { |
155 | .name = "Delta Abs", | |
156 | .width = 7, | |
157 | }, | |
345dc0b4 JO |
158 | [PERF_HPP_DIFF__RATIO] = { |
159 | .name = "Ratio", | |
160 | .width = 14, | |
161 | }, | |
162 | [PERF_HPP_DIFF__WEIGHTED_DIFF] = { | |
163 | .name = "Weighted diff", | |
164 | .width = 14, | |
165 | }, | |
166 | [PERF_HPP_DIFF__FORMULA] = { | |
167 | .name = "Formula", | |
168 | .width = MAX_COL_WIDTH, | |
b10c78c5 JY |
169 | }, |
170 | [PERF_HPP_DIFF__CYCLES] = { | |
171 | .name = "[Program Block Range] Cycles Diff", | |
172 | .width = 70, | |
cebf7d51 JY |
173 | }, |
174 | [PERF_HPP_DIFF__CYCLES_HIST] = { | |
175 | .name = "stddev/Hist", | |
176 | .width = NUM_SPARKS + 9, | |
345dc0b4 JO |
177 | } |
178 | }; | |
179 | ||
81d5f958 JO |
180 | static int setup_compute_opt_wdiff(char *opt) |
181 | { | |
182 | char *w1_str = opt; | |
183 | char *w2_str; | |
184 | ||
185 | int ret = -EINVAL; | |
186 | ||
187 | if (!opt) | |
188 | goto out; | |
189 | ||
190 | w2_str = strchr(opt, ','); | |
191 | if (!w2_str) | |
192 | goto out; | |
193 | ||
194 | *w2_str++ = 0x0; | |
195 | if (!*w2_str) | |
196 | goto out; | |
197 | ||
198 | compute_wdiff_w1 = strtol(w1_str, NULL, 10); | |
199 | compute_wdiff_w2 = strtol(w2_str, NULL, 10); | |
200 | ||
201 | if (!compute_wdiff_w1 || !compute_wdiff_w2) | |
202 | goto out; | |
203 | ||
204 | pr_debug("compute wdiff w1(%" PRId64 ") w2(%" PRId64 ")\n", | |
205 | compute_wdiff_w1, compute_wdiff_w2); | |
206 | ||
207 | ret = 0; | |
208 | ||
209 | out: | |
210 | if (ret) | |
211 | pr_err("Failed: wrong weight data, use 'wdiff:w1,w2'\n"); | |
212 | ||
213 | return ret; | |
214 | } | |
215 | ||
216 | static int setup_compute_opt(char *opt) | |
217 | { | |
218 | if (compute == COMPUTE_WEIGHTED_DIFF) | |
219 | return setup_compute_opt_wdiff(opt); | |
220 | ||
221 | if (opt) { | |
222 | pr_err("Failed: extra option specified '%s'", opt); | |
223 | return -EINVAL; | |
224 | } | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
7aaf6b35 JO |
229 | static int setup_compute(const struct option *opt, const char *str, |
230 | int unset __maybe_unused) | |
231 | { | |
232 | int *cp = (int *) opt->value; | |
81d5f958 JO |
233 | char *cstr = (char *) str; |
234 | char buf[50]; | |
7aaf6b35 | 235 | unsigned i; |
81d5f958 | 236 | char *option; |
7aaf6b35 JO |
237 | |
238 | if (!str) { | |
239 | *cp = COMPUTE_DELTA; | |
240 | return 0; | |
241 | } | |
242 | ||
81d5f958 JO |
243 | option = strchr(str, ':'); |
244 | if (option) { | |
245 | unsigned len = option++ - str; | |
246 | ||
247 | /* | |
248 | * The str data are not writeable, so we need | |
249 | * to use another buffer. | |
250 | */ | |
251 | ||
252 | /* No option value is longer. */ | |
253 | if (len >= sizeof(buf)) | |
254 | return -EINVAL; | |
255 | ||
256 | strncpy(buf, str, len); | |
257 | buf[len] = 0x0; | |
258 | cstr = buf; | |
259 | } | |
260 | ||
7aaf6b35 | 261 | for (i = 0; i < COMPUTE_MAX; i++) |
81d5f958 | 262 | if (!strcmp(cstr, compute_names[i])) { |
7aaf6b35 | 263 | *cp = i; |
81d5f958 | 264 | return setup_compute_opt(option); |
7aaf6b35 JO |
265 | } |
266 | ||
267 | pr_err("Failed: '%s' is not computation method " | |
81d5f958 | 268 | "(use 'delta','ratio' or 'wdiff')\n", str); |
7aaf6b35 JO |
269 | return -EINVAL; |
270 | } | |
271 | ||
ef358e6d | 272 | static double period_percent(struct hist_entry *he, u64 period) |
96c47f19 | 273 | { |
8810f6ce NK |
274 | u64 total = hists__total_period(he->hists); |
275 | ||
96c47f19 JO |
276 | return (period * 100.0) / total; |
277 | } | |
278 | ||
ef358e6d | 279 | static double compute_delta(struct hist_entry *he, struct hist_entry *pair) |
96c47f19 | 280 | { |
ef358e6d JO |
281 | double old_percent = period_percent(he, he->stat.period); |
282 | double new_percent = period_percent(pair, pair->stat.period); | |
96c47f19 | 283 | |
9af303e2 JO |
284 | pair->diff.period_ratio_delta = new_percent - old_percent; |
285 | pair->diff.computed = true; | |
286 | return pair->diff.period_ratio_delta; | |
96c47f19 JO |
287 | } |
288 | ||
ef358e6d | 289 | static double compute_ratio(struct hist_entry *he, struct hist_entry *pair) |
96c47f19 | 290 | { |
9af303e2 JO |
291 | double old_period = he->stat.period ?: 1; |
292 | double new_period = pair->stat.period; | |
96c47f19 | 293 | |
9af303e2 JO |
294 | pair->diff.computed = true; |
295 | pair->diff.period_ratio = new_period / old_period; | |
296 | return pair->diff.period_ratio; | |
96c47f19 JO |
297 | } |
298 | ||
ef358e6d | 299 | static s64 compute_wdiff(struct hist_entry *he, struct hist_entry *pair) |
81d5f958 | 300 | { |
9af303e2 JO |
301 | u64 old_period = he->stat.period; |
302 | u64 new_period = pair->stat.period; | |
81d5f958 | 303 | |
9af303e2 JO |
304 | pair->diff.computed = true; |
305 | pair->diff.wdiff = new_period * compute_wdiff_w2 - | |
306 | old_period * compute_wdiff_w1; | |
81d5f958 | 307 | |
9af303e2 | 308 | return pair->diff.wdiff; |
81d5f958 JO |
309 | } |
310 | ||
f4c8bae1 JO |
311 | static int formula_delta(struct hist_entry *he, struct hist_entry *pair, |
312 | char *buf, size_t size) | |
ed279da2 | 313 | { |
8810f6ce NK |
314 | u64 he_total = he->hists->stats.total_period; |
315 | u64 pair_total = pair->hists->stats.total_period; | |
316 | ||
317 | if (symbol_conf.filter_relative) { | |
318 | he_total = he->hists->stats.total_non_filtered_period; | |
319 | pair_total = pair->hists->stats.total_non_filtered_period; | |
320 | } | |
ed279da2 JO |
321 | return scnprintf(buf, size, |
322 | "(%" PRIu64 " * 100 / %" PRIu64 ") - " | |
323 | "(%" PRIu64 " * 100 / %" PRIu64 ")", | |
8810f6ce NK |
324 | pair->stat.period, pair_total, |
325 | he->stat.period, he_total); | |
ed279da2 JO |
326 | } |
327 | ||
f4c8bae1 JO |
328 | static int formula_ratio(struct hist_entry *he, struct hist_entry *pair, |
329 | char *buf, size_t size) | |
ed279da2 | 330 | { |
9af303e2 JO |
331 | double old_period = he->stat.period; |
332 | double new_period = pair->stat.period; | |
ed279da2 JO |
333 | |
334 | return scnprintf(buf, size, "%.0F / %.0F", new_period, old_period); | |
335 | } | |
336 | ||
f4c8bae1 JO |
337 | static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair, |
338 | char *buf, size_t size) | |
ed279da2 | 339 | { |
9af303e2 JO |
340 | u64 old_period = he->stat.period; |
341 | u64 new_period = pair->stat.period; | |
ed279da2 JO |
342 | |
343 | return scnprintf(buf, size, | |
344 | "(%" PRIu64 " * " "%" PRId64 ") - (%" PRIu64 " * " "%" PRId64 ")", | |
345 | new_period, compute_wdiff_w2, old_period, compute_wdiff_w1); | |
346 | } | |
347 | ||
ef358e6d JO |
348 | static int formula_fprintf(struct hist_entry *he, struct hist_entry *pair, |
349 | char *buf, size_t size) | |
ed279da2 JO |
350 | { |
351 | switch (compute) { | |
352 | case COMPUTE_DELTA: | |
a1668c25 | 353 | case COMPUTE_DELTA_ABS: |
f4c8bae1 | 354 | return formula_delta(he, pair, buf, size); |
ed279da2 | 355 | case COMPUTE_RATIO: |
f4c8bae1 | 356 | return formula_ratio(he, pair, buf, size); |
ed279da2 | 357 | case COMPUTE_WEIGHTED_DIFF: |
f4c8bae1 | 358 | return formula_wdiff(he, pair, buf, size); |
ed279da2 JO |
359 | default: |
360 | BUG_ON(1); | |
361 | } | |
362 | ||
363 | return -1; | |
364 | } | |
365 | ||
99150a1f JY |
366 | static void *block_hist_zalloc(size_t size) |
367 | { | |
368 | struct block_hist *bh; | |
369 | ||
370 | bh = zalloc(size + sizeof(*bh)); | |
371 | if (!bh) | |
372 | return NULL; | |
373 | ||
374 | return &bh->he; | |
375 | } | |
376 | ||
377 | static void block_hist_free(void *he) | |
378 | { | |
379 | struct block_hist *bh; | |
380 | ||
381 | bh = container_of(he, struct block_hist, he); | |
382 | hists__delete_entries(&bh->block_hists); | |
383 | free(bh); | |
384 | } | |
385 | ||
386 | struct hist_entry_ops block_hist_ops = { | |
387 | .new = block_hist_zalloc, | |
388 | .free = block_hist_free, | |
389 | }; | |
390 | ||
4802138d | 391 | static int diff__process_sample_event(struct perf_tool *tool, |
d20deb64 | 392 | union perf_event *event, |
8d50e5b4 | 393 | struct perf_sample *sample, |
32dcd021 | 394 | struct evsel *evsel, |
743eb868 | 395 | struct machine *machine) |
86a9eee0 | 396 | { |
4802138d | 397 | struct perf_diff *pdiff = container_of(tool, struct perf_diff, tool); |
86a9eee0 | 398 | struct addr_location al; |
4ea062ed | 399 | struct hists *hists = evsel__hists(evsel); |
2a09a84c JY |
400 | struct hist_entry_iter iter = { |
401 | .evsel = evsel, | |
402 | .sample = sample, | |
403 | .ops = &hist_iter_normal, | |
404 | }; | |
b91fc39f | 405 | int ret = -1; |
86a9eee0 | 406 | |
4802138d JY |
407 | if (perf_time__ranges_skip_sample(pdiff->ptime_range, pdiff->range_num, |
408 | sample->time)) { | |
409 | return 0; | |
410 | } | |
411 | ||
0dd5041c | 412 | addr_location__init(&al); |
bb3eb566 | 413 | if (machine__resolve(machine, &al, sample) < 0) { |
86a9eee0 ACM |
414 | pr_warning("problem processing %d event, skipping it.\n", |
415 | event->header.type); | |
0dd5041c IR |
416 | ret = -1; |
417 | goto out; | |
86a9eee0 ACM |
418 | } |
419 | ||
daca23b2 JY |
420 | if (cpu_list && !test_bit(sample->cpu, cpu_bitmap)) { |
421 | ret = 0; | |
0dd5041c | 422 | goto out; |
daca23b2 JY |
423 | } |
424 | ||
2a09a84c JY |
425 | switch (compute) { |
426 | case COMPUTE_CYCLES: | |
99150a1f | 427 | if (!hists__add_entry_ops(hists, &block_hist_ops, &al, NULL, |
ebf39d29 | 428 | NULL, NULL, NULL, sample, true)) { |
99150a1f JY |
429 | pr_warning("problem incrementing symbol period, " |
430 | "skipping event\n"); | |
0dd5041c | 431 | goto out; |
99150a1f JY |
432 | } |
433 | ||
7841f40a JY |
434 | hist__account_cycles(sample->branch_stack, &al, sample, false, |
435 | NULL); | |
2a09a84c JY |
436 | break; |
437 | ||
438 | case COMPUTE_STREAM: | |
439 | if (hist_entry_iter__add(&iter, &al, PERF_MAX_STACK_DEPTH, | |
440 | NULL)) { | |
441 | pr_debug("problem adding hist entry, skipping event\n"); | |
0dd5041c | 442 | goto out; |
2a09a84c JY |
443 | } |
444 | break; | |
445 | ||
446 | default: | |
ebf39d29 | 447 | if (!hists__add_entry(hists, &al, NULL, NULL, NULL, NULL, sample, |
2a09a84c JY |
448 | true)) { |
449 | pr_warning("problem incrementing symbol period, " | |
450 | "skipping event\n"); | |
0dd5041c | 451 | goto out; |
2a09a84c | 452 | } |
86a9eee0 ACM |
453 | } |
454 | ||
820bc81f NK |
455 | /* |
456 | * The total_period is updated here before going to the output | |
457 | * tree since normally only the baseline hists will call | |
458 | * hists__output_resort() and precompute needs the total | |
459 | * period in order to sort entries by percentage delta. | |
460 | */ | |
4ea062ed | 461 | hists->stats.total_period += sample->period; |
820bc81f | 462 | if (!al.filtered) |
4ea062ed | 463 | hists->stats.total_non_filtered_period += sample->period; |
b91fc39f | 464 | ret = 0; |
0dd5041c IR |
465 | out: |
466 | addr_location__exit(&al); | |
b91fc39f | 467 | return ret; |
86a9eee0 ACM |
468 | } |
469 | ||
4802138d JY |
470 | static struct perf_diff pdiff = { |
471 | .tool = { | |
472 | .sample = diff__process_sample_event, | |
473 | .mmap = perf_event__process_mmap, | |
474 | .mmap2 = perf_event__process_mmap2, | |
475 | .comm = perf_event__process_comm, | |
476 | .exit = perf_event__process_exit, | |
477 | .fork = perf_event__process_fork, | |
478 | .lost = perf_event__process_lost, | |
479 | .namespaces = perf_event__process_namespaces, | |
ba78c1c5 | 480 | .cgroup = perf_event__process_cgroup, |
4802138d JY |
481 | .ordered_events = true, |
482 | .ordering_requires_timestamps = true, | |
483 | }, | |
86a9eee0 ACM |
484 | }; |
485 | ||
32dcd021 | 486 | static struct evsel *evsel_match(struct evsel *evsel, |
63503dba | 487 | struct evlist *evlist) |
863e451f | 488 | { |
32dcd021 | 489 | struct evsel *e; |
863e451f | 490 | |
e5cadb93 | 491 | evlist__for_each_entry(evlist, e) { |
c754c382 | 492 | if (evsel__match2(evsel, e)) |
863e451f | 493 | return e; |
0050f7aa | 494 | } |
863e451f JO |
495 | |
496 | return NULL; | |
497 | } | |
498 | ||
b979a2f1 | 499 | static void evlist__collapse_resort(struct evlist *evlist) |
dd464345 | 500 | { |
32dcd021 | 501 | struct evsel *evsel; |
dd464345 | 502 | |
e5cadb93 | 503 | evlist__for_each_entry(evlist, evsel) { |
4ea062ed | 504 | struct hists *hists = evsel__hists(evsel); |
dd464345 | 505 | |
c1fb5651 | 506 | hists__collapse_resort(hists, NULL); |
dd464345 JO |
507 | } |
508 | } | |
509 | ||
ff21cef6 NK |
510 | static struct data__file *fmt_to_data_file(struct perf_hpp_fmt *fmt) |
511 | { | |
512 | struct diff_hpp_fmt *dfmt = container_of(fmt, struct diff_hpp_fmt, fmt); | |
513 | void *ptr = dfmt - dfmt->idx; | |
514 | struct data__file *d = container_of(ptr, struct data__file, fmt); | |
515 | ||
516 | return d; | |
517 | } | |
518 | ||
5f3f8d3b JO |
519 | static struct hist_entry* |
520 | get_pair_data(struct hist_entry *he, struct data__file *d) | |
521 | { | |
522 | if (hist_entry__has_pairs(he)) { | |
523 | struct hist_entry *pair; | |
524 | ||
525 | list_for_each_entry(pair, &he->pairs.head, pairs.node) | |
526 | if (pair->hists == d->hists) | |
527 | return pair; | |
528 | } | |
529 | ||
530 | return NULL; | |
531 | } | |
532 | ||
533 | static struct hist_entry* | |
534 | get_pair_fmt(struct hist_entry *he, struct diff_hpp_fmt *dfmt) | |
535 | { | |
ff21cef6 | 536 | struct data__file *d = fmt_to_data_file(&dfmt->fmt); |
5f3f8d3b JO |
537 | |
538 | return get_pair_data(he, d); | |
539 | } | |
540 | ||
a06d143e JO |
541 | static void hists__baseline_only(struct hists *hists) |
542 | { | |
2eb3d689 | 543 | struct rb_root_cached *root; |
ce74f60e NK |
544 | struct rb_node *next; |
545 | ||
52225036 | 546 | if (hists__has(hists, need_collapse)) |
ce74f60e NK |
547 | root = &hists->entries_collapsed; |
548 | else | |
549 | root = hists->entries_in; | |
a06d143e | 550 | |
2eb3d689 | 551 | next = rb_first_cached(root); |
a06d143e | 552 | while (next != NULL) { |
ce74f60e | 553 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in); |
a06d143e | 554 | |
ce74f60e | 555 | next = rb_next(&he->rb_node_in); |
b821c732 | 556 | if (!hist_entry__next_pair(he)) { |
2eb3d689 | 557 | rb_erase_cached(&he->rb_node_in, root); |
6733d1bf | 558 | hist_entry__delete(he); |
a06d143e JO |
559 | } |
560 | } | |
561 | } | |
562 | ||
99150a1f JY |
563 | static int64_t block_cycles_diff_cmp(struct hist_entry *left, |
564 | struct hist_entry *right) | |
565 | { | |
566 | bool pairs_left = hist_entry__has_pairs(left); | |
567 | bool pairs_right = hist_entry__has_pairs(right); | |
568 | s64 l, r; | |
569 | ||
570 | if (!pairs_left && !pairs_right) | |
571 | return 0; | |
572 | ||
98e93245 ACM |
573 | l = llabs(left->diff.cycles); |
574 | r = llabs(right->diff.cycles); | |
99150a1f JY |
575 | return r - l; |
576 | } | |
577 | ||
578 | static int64_t block_sort(struct perf_hpp_fmt *fmt __maybe_unused, | |
579 | struct hist_entry *left, struct hist_entry *right) | |
580 | { | |
581 | return block_cycles_diff_cmp(right, left); | |
582 | } | |
583 | ||
584 | static void init_block_hist(struct block_hist *bh) | |
585 | { | |
586 | __hists__init(&bh->block_hists, &bh->block_list); | |
587 | perf_hpp_list__init(&bh->block_list); | |
588 | ||
589 | INIT_LIST_HEAD(&bh->block_fmt.list); | |
590 | INIT_LIST_HEAD(&bh->block_fmt.sort_list); | |
60414418 | 591 | bh->block_fmt.cmp = block_info__cmp; |
99150a1f JY |
592 | bh->block_fmt.sort = block_sort; |
593 | perf_hpp_list__register_sort_field(&bh->block_list, | |
594 | &bh->block_fmt); | |
595 | bh->valid = true; | |
596 | } | |
597 | ||
f3810817 JY |
598 | static struct hist_entry *get_block_pair(struct hist_entry *he, |
599 | struct hists *hists_pair) | |
600 | { | |
601 | struct rb_root_cached *root = hists_pair->entries_in; | |
602 | struct rb_node *next = rb_first_cached(root); | |
a8a9f6dc | 603 | int64_t cmp; |
f3810817 JY |
604 | |
605 | while (next != NULL) { | |
606 | struct hist_entry *he_pair = rb_entry(next, struct hist_entry, | |
607 | rb_node_in); | |
608 | ||
609 | next = rb_next(&he_pair->rb_node_in); | |
610 | ||
a8a9f6dc | 611 | cmp = __block_info__cmp(he_pair, he); |
f3810817 JY |
612 | if (!cmp) |
613 | return he_pair; | |
614 | } | |
615 | ||
616 | return NULL; | |
617 | } | |
618 | ||
cebf7d51 JY |
619 | static void init_spark_values(unsigned long *svals, int num) |
620 | { | |
621 | for (int i = 0; i < num; i++) | |
622 | svals[i] = 0; | |
623 | } | |
624 | ||
625 | static void update_spark_value(unsigned long *svals, int num, | |
626 | struct stats *stats, u64 val) | |
627 | { | |
628 | int n = stats->n; | |
629 | ||
630 | if (n < num) | |
631 | svals[n] = val; | |
632 | } | |
633 | ||
f3810817 JY |
634 | static void compute_cycles_diff(struct hist_entry *he, |
635 | struct hist_entry *pair) | |
636 | { | |
637 | pair->diff.computed = true; | |
638 | if (pair->block_info->num && he->block_info->num) { | |
639 | pair->diff.cycles = | |
640 | pair->block_info->cycles_aggr / pair->block_info->num_aggr - | |
641 | he->block_info->cycles_aggr / he->block_info->num_aggr; | |
cebf7d51 JY |
642 | |
643 | if (!cycles_hist) | |
644 | return; | |
645 | ||
646 | init_stats(&pair->diff.stats); | |
647 | init_spark_values(pair->diff.svals, NUM_SPARKS); | |
648 | ||
649 | for (int i = 0; i < pair->block_info->num; i++) { | |
650 | u64 val; | |
651 | ||
652 | if (i >= he->block_info->num || i >= NUM_SPARKS) | |
653 | break; | |
654 | ||
2b1ac640 | 655 | val = llabs(pair->block_info->cycles_spark[i] - |
cebf7d51 JY |
656 | he->block_info->cycles_spark[i]); |
657 | ||
658 | update_spark_value(pair->diff.svals, NUM_SPARKS, | |
659 | &pair->diff.stats, val); | |
660 | update_stats(&pair->diff.stats, val); | |
661 | } | |
f3810817 JY |
662 | } |
663 | } | |
664 | ||
665 | static void block_hists_match(struct hists *hists_base, | |
666 | struct hists *hists_pair) | |
667 | { | |
668 | struct rb_root_cached *root = hists_base->entries_in; | |
669 | struct rb_node *next = rb_first_cached(root); | |
670 | ||
671 | while (next != NULL) { | |
672 | struct hist_entry *he = rb_entry(next, struct hist_entry, | |
673 | rb_node_in); | |
674 | struct hist_entry *pair = get_block_pair(he, hists_pair); | |
675 | ||
676 | next = rb_next(&he->rb_node_in); | |
677 | ||
678 | if (pair) { | |
679 | hist_entry__add_pair(pair, he); | |
680 | compute_cycles_diff(he, pair); | |
681 | } | |
682 | } | |
683 | } | |
684 | ||
96c47f19 JO |
685 | static void hists__precompute(struct hists *hists) |
686 | { | |
2eb3d689 | 687 | struct rb_root_cached *root; |
367c53c0 JO |
688 | struct rb_node *next; |
689 | ||
52225036 | 690 | if (hists__has(hists, need_collapse)) |
367c53c0 JO |
691 | root = &hists->entries_collapsed; |
692 | else | |
693 | root = hists->entries_in; | |
96c47f19 | 694 | |
2eb3d689 | 695 | next = rb_first_cached(root); |
96c47f19 | 696 | while (next != NULL) { |
f3810817 | 697 | struct block_hist *bh, *pair_bh; |
5f3f8d3b | 698 | struct hist_entry *he, *pair; |
56495a8a NK |
699 | struct data__file *d; |
700 | int i; | |
96c47f19 | 701 | |
5f3f8d3b | 702 | he = rb_entry(next, struct hist_entry, rb_node_in); |
367c53c0 | 703 | next = rb_next(&he->rb_node_in); |
5f3f8d3b | 704 | |
60414418 JY |
705 | if (compute == COMPUTE_CYCLES) { |
706 | bh = container_of(he, struct block_hist, he); | |
707 | init_block_hist(bh); | |
708 | block_info__process_sym(he, bh, NULL, 0); | |
709 | } | |
99150a1f | 710 | |
56495a8a NK |
711 | data__for_each_file_new(i, d) { |
712 | pair = get_pair_data(he, d); | |
713 | if (!pair) | |
714 | continue; | |
715 | ||
716 | switch (compute) { | |
717 | case COMPUTE_DELTA: | |
a1668c25 | 718 | case COMPUTE_DELTA_ABS: |
56495a8a NK |
719 | compute_delta(he, pair); |
720 | break; | |
721 | case COMPUTE_RATIO: | |
722 | compute_ratio(he, pair); | |
723 | break; | |
724 | case COMPUTE_WEIGHTED_DIFF: | |
725 | compute_wdiff(he, pair); | |
726 | break; | |
99150a1f | 727 | case COMPUTE_CYCLES: |
f3810817 JY |
728 | pair_bh = container_of(pair, struct block_hist, |
729 | he); | |
60414418 JY |
730 | init_block_hist(pair_bh); |
731 | block_info__process_sym(pair, pair_bh, NULL, 0); | |
732 | ||
733 | bh = container_of(he, struct block_hist, he); | |
f3810817 JY |
734 | |
735 | if (bh->valid && pair_bh->valid) { | |
736 | block_hists_match(&bh->block_hists, | |
737 | &pair_bh->block_hists); | |
0bdf181f JY |
738 | hists__output_resort(&pair_bh->block_hists, |
739 | NULL); | |
f3810817 | 740 | } |
99150a1f | 741 | break; |
56495a8a NK |
742 | default: |
743 | BUG_ON(1); | |
744 | } | |
96c47f19 JO |
745 | } |
746 | } | |
747 | } | |
748 | ||
749 | static int64_t cmp_doubles(double l, double r) | |
750 | { | |
751 | if (l > r) | |
752 | return -1; | |
753 | else if (l < r) | |
754 | return 1; | |
755 | else | |
756 | return 0; | |
757 | } | |
758 | ||
759 | static int64_t | |
5f3f8d3b | 760 | __hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, |
96c47f19 JO |
761 | int c) |
762 | { | |
763 | switch (c) { | |
764 | case COMPUTE_DELTA: | |
765 | { | |
766 | double l = left->diff.period_ratio_delta; | |
767 | double r = right->diff.period_ratio_delta; | |
768 | ||
769 | return cmp_doubles(l, r); | |
770 | } | |
a1668c25 NK |
771 | case COMPUTE_DELTA_ABS: |
772 | { | |
773 | double l = fabs(left->diff.period_ratio_delta); | |
774 | double r = fabs(right->diff.period_ratio_delta); | |
775 | ||
776 | return cmp_doubles(l, r); | |
777 | } | |
96c47f19 JO |
778 | case COMPUTE_RATIO: |
779 | { | |
780 | double l = left->diff.period_ratio; | |
781 | double r = right->diff.period_ratio; | |
782 | ||
783 | return cmp_doubles(l, r); | |
784 | } | |
81d5f958 JO |
785 | case COMPUTE_WEIGHTED_DIFF: |
786 | { | |
787 | s64 l = left->diff.wdiff; | |
788 | s64 r = right->diff.wdiff; | |
789 | ||
790 | return r - l; | |
791 | } | |
96c47f19 JO |
792 | default: |
793 | BUG_ON(1); | |
794 | } | |
795 | ||
796 | return 0; | |
797 | } | |
798 | ||
5f3f8d3b JO |
799 | static int64_t |
800 | hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, | |
56495a8a | 801 | int c, int sort_idx) |
5f3f8d3b JO |
802 | { |
803 | bool pairs_left = hist_entry__has_pairs(left); | |
804 | bool pairs_right = hist_entry__has_pairs(right); | |
805 | struct hist_entry *p_right, *p_left; | |
806 | ||
807 | if (!pairs_left && !pairs_right) | |
808 | return 0; | |
809 | ||
810 | if (!pairs_left || !pairs_right) | |
811 | return pairs_left ? -1 : 1; | |
812 | ||
56495a8a NK |
813 | p_left = get_pair_data(left, &data__files[sort_idx]); |
814 | p_right = get_pair_data(right, &data__files[sort_idx]); | |
5f3f8d3b JO |
815 | |
816 | if (!p_left && !p_right) | |
817 | return 0; | |
818 | ||
819 | if (!p_left || !p_right) | |
820 | return p_left ? -1 : 1; | |
821 | ||
822 | /* | |
823 | * We have 2 entries of same kind, let's | |
824 | * make the data comparison. | |
825 | */ | |
826 | return __hist_entry__cmp_compute(p_left, p_right, c); | |
827 | } | |
828 | ||
566b5cfb NK |
829 | static int64_t |
830 | hist_entry__cmp_compute_idx(struct hist_entry *left, struct hist_entry *right, | |
831 | int c, int sort_idx) | |
832 | { | |
833 | struct hist_entry *p_right, *p_left; | |
834 | ||
835 | p_left = get_pair_data(left, &data__files[sort_idx]); | |
836 | p_right = get_pair_data(right, &data__files[sort_idx]); | |
837 | ||
838 | if (!p_left && !p_right) | |
839 | return 0; | |
840 | ||
841 | if (!p_left || !p_right) | |
842 | return p_left ? -1 : 1; | |
843 | ||
a1668c25 | 844 | if (c != COMPUTE_DELTA && c != COMPUTE_DELTA_ABS) { |
566b5cfb NK |
845 | /* |
846 | * The delta can be computed without the baseline, but | |
847 | * others are not. Put those entries which have no | |
848 | * values below. | |
849 | */ | |
850 | if (left->dummy && right->dummy) | |
851 | return 0; | |
852 | ||
853 | if (left->dummy || right->dummy) | |
854 | return left->dummy ? 1 : -1; | |
855 | } | |
856 | ||
857 | return __hist_entry__cmp_compute(p_left, p_right, c); | |
858 | } | |
859 | ||
e7024fc3 | 860 | static int64_t |
87bbdf76 NK |
861 | hist_entry__cmp_nop(struct perf_hpp_fmt *fmt __maybe_unused, |
862 | struct hist_entry *left __maybe_unused, | |
e7024fc3 NK |
863 | struct hist_entry *right __maybe_unused) |
864 | { | |
865 | return 0; | |
866 | } | |
867 | ||
868 | static int64_t | |
87bbdf76 NK |
869 | hist_entry__cmp_baseline(struct perf_hpp_fmt *fmt __maybe_unused, |
870 | struct hist_entry *left, struct hist_entry *right) | |
e7024fc3 | 871 | { |
e7024fc3 NK |
872 | if (left->stat.period == right->stat.period) |
873 | return 0; | |
874 | return left->stat.period > right->stat.period ? 1 : -1; | |
875 | } | |
876 | ||
877 | static int64_t | |
56495a8a | 878 | hist_entry__cmp_delta(struct perf_hpp_fmt *fmt, |
87bbdf76 | 879 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 880 | { |
56495a8a NK |
881 | struct data__file *d = fmt_to_data_file(fmt); |
882 | ||
883 | return hist_entry__cmp_compute(right, left, COMPUTE_DELTA, d->idx); | |
e7024fc3 NK |
884 | } |
885 | ||
a1668c25 NK |
886 | static int64_t |
887 | hist_entry__cmp_delta_abs(struct perf_hpp_fmt *fmt, | |
888 | struct hist_entry *left, struct hist_entry *right) | |
889 | { | |
890 | struct data__file *d = fmt_to_data_file(fmt); | |
891 | ||
892 | return hist_entry__cmp_compute(right, left, COMPUTE_DELTA_ABS, d->idx); | |
893 | } | |
894 | ||
e7024fc3 | 895 | static int64_t |
56495a8a | 896 | hist_entry__cmp_ratio(struct perf_hpp_fmt *fmt, |
87bbdf76 | 897 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 898 | { |
56495a8a NK |
899 | struct data__file *d = fmt_to_data_file(fmt); |
900 | ||
901 | return hist_entry__cmp_compute(right, left, COMPUTE_RATIO, d->idx); | |
e7024fc3 NK |
902 | } |
903 | ||
904 | static int64_t | |
56495a8a | 905 | hist_entry__cmp_wdiff(struct perf_hpp_fmt *fmt, |
87bbdf76 | 906 | struct hist_entry *left, struct hist_entry *right) |
e7024fc3 | 907 | { |
56495a8a NK |
908 | struct data__file *d = fmt_to_data_file(fmt); |
909 | ||
910 | return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF, d->idx); | |
e7024fc3 NK |
911 | } |
912 | ||
566b5cfb NK |
913 | static int64_t |
914 | hist_entry__cmp_delta_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
915 | struct hist_entry *left, struct hist_entry *right) | |
916 | { | |
917 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_DELTA, | |
918 | sort_compute); | |
919 | } | |
920 | ||
a1668c25 NK |
921 | static int64_t |
922 | hist_entry__cmp_delta_abs_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
923 | struct hist_entry *left, struct hist_entry *right) | |
924 | { | |
925 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_DELTA_ABS, | |
926 | sort_compute); | |
927 | } | |
928 | ||
566b5cfb NK |
929 | static int64_t |
930 | hist_entry__cmp_ratio_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
931 | struct hist_entry *left, struct hist_entry *right) | |
932 | { | |
933 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_RATIO, | |
934 | sort_compute); | |
935 | } | |
936 | ||
937 | static int64_t | |
938 | hist_entry__cmp_wdiff_idx(struct perf_hpp_fmt *fmt __maybe_unused, | |
939 | struct hist_entry *left, struct hist_entry *right) | |
940 | { | |
941 | return hist_entry__cmp_compute_idx(right, left, COMPUTE_WEIGHTED_DIFF, | |
942 | sort_compute); | |
943 | } | |
944 | ||
22aeb7f5 | 945 | static void hists__process(struct hists *hists) |
a06d143e | 946 | { |
a06d143e | 947 | if (show_baseline_only) |
22aeb7f5 | 948 | hists__baseline_only(hists); |
a06d143e | 949 | |
56495a8a | 950 | hists__precompute(hists); |
38259a17 | 951 | hists__output_resort(hists, NULL); |
96c47f19 | 952 | |
b10c78c5 JY |
953 | if (compute == COMPUTE_CYCLES) |
954 | symbol_conf.report_block = true; | |
955 | ||
63b42fce | 956 | hists__fprintf(hists, !quiet, 0, 0, 0, stdout, |
e9de7e2f | 957 | !symbol_conf.use_callchain); |
a06d143e JO |
958 | } |
959 | ||
1d81c7fc JO |
960 | static void data__fprintf(void) |
961 | { | |
962 | struct data__file *d; | |
963 | int i; | |
964 | ||
965 | fprintf(stdout, "# Data files:\n"); | |
966 | ||
967 | data__for_each_file(i, d) | |
968 | fprintf(stdout, "# [%d] %s %s\n", | |
2d4f2799 | 969 | d->idx, d->data.path, |
1d81c7fc JO |
970 | !d->idx ? "(Baseline)" : ""); |
971 | ||
972 | fprintf(stdout, "#\n"); | |
973 | } | |
974 | ||
ec308426 | 975 | static void data_process(void) |
86a9eee0 | 976 | { |
63503dba | 977 | struct evlist *evlist_base = data__files[0].session->evlist; |
32dcd021 | 978 | struct evsel *evsel_base; |
863e451f | 979 | bool first = true; |
86a9eee0 | 980 | |
e5cadb93 | 981 | evlist__for_each_entry(evlist_base, evsel_base) { |
4ea062ed | 982 | struct hists *hists_base = evsel__hists(evsel_base); |
22aeb7f5 JO |
983 | struct data__file *d; |
984 | int i; | |
86a9eee0 | 985 | |
22aeb7f5 | 986 | data__for_each_file_new(i, d) { |
63503dba | 987 | struct evlist *evlist = d->session->evlist; |
32dcd021 | 988 | struct evsel *evsel; |
4ea062ed | 989 | struct hists *hists; |
22aeb7f5 JO |
990 | |
991 | evsel = evsel_match(evsel_base, evlist); | |
992 | if (!evsel) | |
993 | continue; | |
994 | ||
4ea062ed ACM |
995 | hists = evsel__hists(evsel); |
996 | d->hists = hists; | |
22aeb7f5 | 997 | |
4ea062ed | 998 | hists__match(hists_base, hists); |
22aeb7f5 JO |
999 | |
1000 | if (!show_baseline_only) | |
4ea062ed | 1001 | hists__link(hists_base, hists); |
22aeb7f5 | 1002 | } |
86a9eee0 | 1003 | |
63b42fce NK |
1004 | if (!quiet) { |
1005 | fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", | |
8ab2e96d | 1006 | evsel__name(evsel_base)); |
63b42fce | 1007 | } |
863e451f | 1008 | |
ec308426 | 1009 | first = false; |
863e451f | 1010 | |
63b42fce | 1011 | if (verbose > 0 || ((data__files_cnt > 2) && !quiet)) |
1d81c7fc JO |
1012 | data__fprintf(); |
1013 | ||
f9db0d0f | 1014 | /* Don't sort callchain for perf diff */ |
862b2f8f | 1015 | evsel__reset_sample_bit(evsel_base, CALLCHAIN); |
f9db0d0f | 1016 | |
4ea062ed | 1017 | hists__process(hists_base); |
ec308426 JO |
1018 | } |
1019 | } | |
863e451f | 1020 | |
2a09a84c JY |
1021 | static int process_base_stream(struct data__file *data_base, |
1022 | struct data__file *data_pair, | |
1023 | const char *title __maybe_unused) | |
1024 | { | |
1025 | struct evlist *evlist_base = data_base->session->evlist; | |
1026 | struct evlist *evlist_pair = data_pair->session->evlist; | |
1027 | struct evsel *evsel_base, *evsel_pair; | |
1028 | struct evsel_streams *es_base, *es_pair; | |
1029 | ||
1030 | evlist__for_each_entry(evlist_base, evsel_base) { | |
1031 | evsel_pair = evsel_match(evsel_base, evlist_pair); | |
1032 | if (!evsel_pair) | |
1033 | continue; | |
1034 | ||
1035 | es_base = evsel_streams__entry(data_base->evlist_streams, | |
38fe0e01 | 1036 | evsel_base->core.idx); |
2a09a84c JY |
1037 | if (!es_base) |
1038 | return -1; | |
1039 | ||
1040 | es_pair = evsel_streams__entry(data_pair->evlist_streams, | |
38fe0e01 | 1041 | evsel_pair->core.idx); |
2a09a84c JY |
1042 | if (!es_pair) |
1043 | return -1; | |
1044 | ||
1045 | evsel_streams__match(es_base, es_pair); | |
1046 | evsel_streams__report(es_base, es_pair); | |
1047 | } | |
1048 | ||
1049 | return 0; | |
1050 | } | |
1051 | ||
1052 | static void stream_process(void) | |
1053 | { | |
1054 | /* | |
1055 | * Stream comparison only supports two data files. | |
1056 | * perf.data.old and perf.data. data__files[0] is perf.data.old, | |
1057 | * data__files[1] is perf.data. | |
1058 | */ | |
1059 | process_base_stream(&data__files[0], &data__files[1], | |
1060 | "# Output based on old perf data:\n#\n"); | |
1061 | } | |
1062 | ||
c818b498 JO |
1063 | static void data__free(struct data__file *d) |
1064 | { | |
1065 | int col; | |
1066 | ||
2a09a84c JY |
1067 | if (d->evlist_streams) |
1068 | evlist_streams__delete(d->evlist_streams); | |
1069 | ||
c818b498 JO |
1070 | for (col = 0; col < PERF_HPP_DIFF__MAX_INDEX; col++) { |
1071 | struct diff_hpp_fmt *fmt = &d->fmt[col]; | |
1072 | ||
74cf249d | 1073 | zfree(&fmt->header); |
c818b498 JO |
1074 | } |
1075 | } | |
1076 | ||
4802138d JY |
1077 | static int abstime_str_dup(char **pstr) |
1078 | { | |
1079 | char *str = NULL; | |
1080 | ||
1081 | if (pdiff.time_str && strchr(pdiff.time_str, ':')) { | |
1082 | str = strdup(pdiff.time_str); | |
1083 | if (!str) | |
1084 | return -ENOMEM; | |
1085 | } | |
1086 | ||
1087 | *pstr = str; | |
1088 | return 0; | |
1089 | } | |
1090 | ||
1091 | static int parse_absolute_time(struct data__file *d, char **pstr) | |
1092 | { | |
1093 | char *p = *pstr; | |
1094 | int ret; | |
1095 | ||
1096 | /* | |
1097 | * Absolute timestamp for one file has the format: a.b,c.d | |
1098 | * For multiple files, the format is: a.b,c.d:a.b,c.d | |
1099 | */ | |
1100 | p = strchr(*pstr, ':'); | |
1101 | if (p) { | |
1102 | if (p == *pstr) { | |
1103 | pr_err("Invalid time string\n"); | |
1104 | return -EINVAL; | |
1105 | } | |
1106 | ||
1107 | *p = 0; | |
1108 | p++; | |
1109 | if (*p == 0) { | |
1110 | pr_err("Invalid time string\n"); | |
1111 | return -EINVAL; | |
1112 | } | |
1113 | } | |
1114 | ||
1115 | ret = perf_time__parse_for_ranges(*pstr, d->session, | |
1116 | &pdiff.ptime_range, | |
1117 | &pdiff.range_size, | |
1118 | &pdiff.range_num); | |
1119 | if (ret < 0) | |
1120 | return ret; | |
1121 | ||
1122 | if (!p || *p == 0) | |
1123 | *pstr = NULL; | |
1124 | else | |
1125 | *pstr = p; | |
1126 | ||
1127 | return ret; | |
1128 | } | |
1129 | ||
1130 | static int parse_percent_time(struct data__file *d) | |
1131 | { | |
1132 | int ret; | |
1133 | ||
1134 | ret = perf_time__parse_for_ranges(pdiff.time_str, d->session, | |
1135 | &pdiff.ptime_range, | |
1136 | &pdiff.range_size, | |
1137 | &pdiff.range_num); | |
1138 | return ret; | |
1139 | } | |
1140 | ||
1141 | static int parse_time_str(struct data__file *d, char *abstime_ostr, | |
1142 | char **pabstime_tmp) | |
1143 | { | |
1144 | int ret = 0; | |
1145 | ||
1146 | if (abstime_ostr) | |
1147 | ret = parse_absolute_time(d, pabstime_tmp); | |
1148 | else if (pdiff.time_str) | |
1149 | ret = parse_percent_time(d); | |
1150 | ||
1151 | return ret; | |
1152 | } | |
1153 | ||
30d81553 JY |
1154 | static int check_file_brstack(void) |
1155 | { | |
1156 | struct data__file *d; | |
1157 | bool has_br_stack; | |
1158 | int i; | |
1159 | ||
1160 | data__for_each_file(i, d) { | |
2681bd85 | 1161 | d->session = perf_session__new(&d->data, &pdiff.tool); |
6ef81c55 | 1162 | if (IS_ERR(d->session)) { |
30d81553 | 1163 | pr_err("Failed to open %s\n", d->data.path); |
6ef81c55 | 1164 | return PTR_ERR(d->session); |
30d81553 JY |
1165 | } |
1166 | ||
1167 | has_br_stack = perf_header__has_feat(&d->session->header, | |
1168 | HEADER_BRANCH_STACK); | |
1169 | perf_session__delete(d->session); | |
1170 | if (!has_br_stack) | |
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | /* Set only all files having branch stacks */ | |
1175 | pdiff.has_br_stack = true; | |
1176 | return 0; | |
1177 | } | |
1178 | ||
ec308426 JO |
1179 | static int __cmd_diff(void) |
1180 | { | |
1181 | struct data__file *d; | |
4802138d JY |
1182 | int ret, i; |
1183 | char *abstime_ostr, *abstime_tmp; | |
1184 | ||
1185 | ret = abstime_str_dup(&abstime_ostr); | |
1186 | if (ret) | |
1187 | return ret; | |
1188 | ||
1189 | abstime_tmp = abstime_ostr; | |
1190 | ret = -EINVAL; | |
ec308426 JO |
1191 | |
1192 | data__for_each_file(i, d) { | |
2681bd85 | 1193 | d->session = perf_session__new(&d->data, &pdiff.tool); |
6ef81c55 MI |
1194 | if (IS_ERR(d->session)) { |
1195 | ret = PTR_ERR(d->session); | |
2d4f2799 | 1196 | pr_err("Failed to open %s\n", d->data.path); |
ec308426 JO |
1197 | goto out_delete; |
1198 | } | |
863e451f | 1199 | |
4802138d JY |
1200 | if (pdiff.time_str) { |
1201 | ret = parse_time_str(d, abstime_ostr, &abstime_tmp); | |
1202 | if (ret < 0) | |
1203 | goto out_delete; | |
1204 | } | |
1205 | ||
daca23b2 JY |
1206 | if (cpu_list) { |
1207 | ret = perf_session__cpu_bitmap(d->session, cpu_list, | |
1208 | cpu_bitmap); | |
1209 | if (ret < 0) | |
1210 | goto out_delete; | |
1211 | } | |
1212 | ||
b7b61cbe | 1213 | ret = perf_session__process_events(d->session); |
ec308426 | 1214 | if (ret) { |
2d4f2799 | 1215 | pr_err("Failed to process %s\n", d->data.path); |
ec308426 JO |
1216 | goto out_delete; |
1217 | } | |
863e451f | 1218 | |
b979a2f1 | 1219 | evlist__collapse_resort(d->session->evlist); |
4802138d JY |
1220 | |
1221 | if (pdiff.ptime_range) | |
1222 | zfree(&pdiff.ptime_range); | |
2a09a84c JY |
1223 | |
1224 | if (compute == COMPUTE_STREAM) { | |
1225 | d->evlist_streams = evlist__create_streams( | |
1226 | d->session->evlist, 5); | |
97130700 ZL |
1227 | if (!d->evlist_streams) { |
1228 | ret = -ENOMEM; | |
2a09a84c | 1229 | goto out_delete; |
97130700 | 1230 | } |
2a09a84c | 1231 | } |
ec308426 JO |
1232 | } |
1233 | ||
2a09a84c JY |
1234 | if (compute == COMPUTE_STREAM) |
1235 | stream_process(); | |
1236 | else | |
1237 | data_process(); | |
863e451f | 1238 | |
ec308426 JO |
1239 | out_delete: |
1240 | data__for_each_file(i, d) { | |
ffc52b7a DS |
1241 | if (!IS_ERR(d->session)) |
1242 | perf_session__delete(d->session); | |
c818b498 | 1243 | data__free(d); |
863e451f | 1244 | } |
9c443dfd | 1245 | |
ec308426 | 1246 | free(data__files); |
4802138d JY |
1247 | |
1248 | if (pdiff.ptime_range) | |
1249 | zfree(&pdiff.ptime_range); | |
1250 | ||
1251 | if (abstime_ostr) | |
1252 | free(abstime_ostr); | |
1253 | ||
86a9eee0 ACM |
1254 | return ret; |
1255 | } | |
1256 | ||
0422a4fc | 1257 | static const char * const diff_usage[] = { |
86a9eee0 | 1258 | "perf diff [<options>] [old_file] [new_file]", |
0422a4fc | 1259 | NULL, |
86a9eee0 ACM |
1260 | }; |
1261 | ||
1262 | static const struct option options[] = { | |
c0555642 | 1263 | OPT_INCR('v', "verbose", &verbose, |
86a9eee0 | 1264 | "be more verbose (show symbol address, etc)"), |
a527c2c1 | 1265 | OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any warnings or messages"), |
a06d143e JO |
1266 | OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, |
1267 | "Show only items with match in baseline"), | |
81d5f958 | 1268 | OPT_CALLBACK('c', "compute", &compute, |
b10c78c5 | 1269 | "delta,delta-abs,ratio,wdiff:w1,w2 (default delta-abs),cycles", |
7aaf6b35 JO |
1270 | "Entries differential computation selection", |
1271 | setup_compute), | |
61949b21 JO |
1272 | OPT_BOOLEAN('p', "period", &show_period, |
1273 | "Show period values."), | |
ed279da2 JO |
1274 | OPT_BOOLEAN('F', "formula", &show_formula, |
1275 | "Show formula."), | |
cebf7d51 JY |
1276 | OPT_BOOLEAN(0, "cycles-hist", &cycles_hist, |
1277 | "Show cycles histogram and standard deviation " | |
1278 | "- WARNING: use only with -c cycles."), | |
86a9eee0 ACM |
1279 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
1280 | "dump raw trace in ASCII"), | |
1281 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
6b1f3423 DA |
1282 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
1283 | "file", "kallsyms pathname"), | |
86a9eee0 ACM |
1284 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, |
1285 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
c410a338 ACM |
1286 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
1287 | "only consider symbols in these dsos"), | |
1288 | OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1289 | "only consider symbols in these comms"), | |
1290 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1291 | "only consider these symbols"), | |
c351c281 | 1292 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
1293 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1294 | " Please refer the man page for the complete list."), | |
8b8ca6e1 | 1295 | OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator", |
c351c281 ACM |
1296 | "separator for columns, no spaces will be added between " |
1297 | "columns '.' is reserved."), | |
a7066709 HK |
1298 | OPT_CALLBACK(0, "symfs", NULL, "directory", |
1299 | "Look for files with symbols relative to this directory", | |
1300 | symbol__config_symfs), | |
5f3f8d3b | 1301 | OPT_UINTEGER('o', "order", &sort_compute, "Specify compute sorting."), |
8810f6ce NK |
1302 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1303 | "How to display percentage of filtered entries", parse_filter_percentage), | |
4802138d JY |
1304 | OPT_STRING(0, "time", &pdiff.time_str, "str", |
1305 | "Time span (time percent or absolute timestamp)"), | |
daca23b2 | 1306 | OPT_STRING(0, "cpu", &cpu_list, "cpu", "list of cpus to profile"), |
c1d3e633 JY |
1307 | OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]", |
1308 | "only consider symbols in these pids"), | |
1309 | OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]", | |
1310 | "only consider symbols in these tids"), | |
2a09a84c JY |
1311 | OPT_BOOLEAN(0, "stream", &pdiff.stream, |
1312 | "Enable hot streams comparison."), | |
86a9eee0 ACM |
1313 | OPT_END() |
1314 | }; | |
1315 | ||
345dc0b4 | 1316 | static double baseline_percent(struct hist_entry *he) |
1d77822e | 1317 | { |
8810f6ce NK |
1318 | u64 total = hists__total_period(he->hists); |
1319 | ||
1320 | return 100.0 * he->stat.period / total; | |
345dc0b4 | 1321 | } |
7aaf6b35 | 1322 | |
345dc0b4 JO |
1323 | static int hpp__color_baseline(struct perf_hpp_fmt *fmt, |
1324 | struct perf_hpp *hpp, struct hist_entry *he) | |
1325 | { | |
1326 | struct diff_hpp_fmt *dfmt = | |
1327 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1328 | double percent = baseline_percent(he); | |
1329 | char pfmt[20] = " "; | |
1330 | ||
1331 | if (!he->dummy) { | |
1332 | scnprintf(pfmt, 20, "%%%d.2f%%%%", dfmt->header_width - 1); | |
1333 | return percent_color_snprintf(hpp->buf, hpp->size, | |
1334 | pfmt, percent); | |
1335 | } else | |
1336 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
1337 | dfmt->header_width, pfmt); | |
1338 | } | |
1339 | ||
1340 | static int hpp__entry_baseline(struct hist_entry *he, char *buf, size_t size) | |
1341 | { | |
1342 | double percent = baseline_percent(he); | |
1343 | const char *fmt = symbol_conf.field_sep ? "%.2f" : "%6.2f%%"; | |
1344 | int ret = 0; | |
1345 | ||
1346 | if (!he->dummy) | |
1347 | ret = scnprintf(buf, size, fmt, percent); | |
1348 | ||
1349 | return ret; | |
1350 | } | |
1351 | ||
b10c78c5 JY |
1352 | static int cycles_printf(struct hist_entry *he, struct hist_entry *pair, |
1353 | struct perf_hpp *hpp, int width) | |
1354 | { | |
1355 | struct block_hist *bh = container_of(he, struct block_hist, he); | |
1356 | struct block_hist *bh_pair = container_of(pair, struct block_hist, he); | |
1357 | struct hist_entry *block_he; | |
1358 | struct block_info *bi; | |
1359 | char buf[128]; | |
1360 | char *start_line, *end_line; | |
1361 | ||
1362 | block_he = hists__get_entry(&bh_pair->block_hists, bh->block_idx); | |
1363 | if (!block_he) { | |
1364 | hpp->skip = true; | |
1365 | return 0; | |
1366 | } | |
1367 | ||
1368 | /* | |
1369 | * Avoid printing the warning "addr2line_init failed for ..." | |
1370 | */ | |
1371 | symbol_conf.disable_add2line_warn = true; | |
1372 | ||
1373 | bi = block_he->block_info; | |
1374 | ||
1375 | start_line = map__srcline(he->ms.map, bi->sym->start + bi->start, | |
1376 | he->ms.sym); | |
1377 | ||
1378 | end_line = map__srcline(he->ms.map, bi->sym->start + bi->end, | |
1379 | he->ms.sym); | |
1380 | ||
922db21d ACM |
1381 | if (start_line != SRCLINE_UNKNOWN && |
1382 | end_line != SRCLINE_UNKNOWN) { | |
b10c78c5 JY |
1383 | scnprintf(buf, sizeof(buf), "[%s -> %s] %4ld", |
1384 | start_line, end_line, block_he->diff.cycles); | |
1385 | } else { | |
1386 | scnprintf(buf, sizeof(buf), "[%7lx -> %7lx] %4ld", | |
1387 | bi->start, bi->end, block_he->diff.cycles); | |
1388 | } | |
1389 | ||
625db36e IR |
1390 | zfree_srcline(&start_line); |
1391 | zfree_srcline(&end_line); | |
b10c78c5 JY |
1392 | |
1393 | return scnprintf(hpp->buf, hpp->size, "%*s", width, buf); | |
1394 | } | |
1395 | ||
01f10bc8 RR |
1396 | static int __hpp__color_compare(struct perf_hpp_fmt *fmt, |
1397 | struct perf_hpp *hpp, struct hist_entry *he, | |
1398 | int comparison_method) | |
1399 | { | |
1400 | struct diff_hpp_fmt *dfmt = | |
1401 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1402 | struct hist_entry *pair = get_pair_fmt(he, dfmt); | |
1403 | double diff; | |
a5846e21 | 1404 | s64 wdiff; |
01f10bc8 RR |
1405 | char pfmt[20] = " "; |
1406 | ||
b10c78c5 JY |
1407 | if (!pair) { |
1408 | if (comparison_method == COMPUTE_CYCLES) { | |
1409 | struct block_hist *bh; | |
1410 | ||
1411 | bh = container_of(he, struct block_hist, he); | |
1412 | if (bh->block_idx) | |
1413 | hpp->skip = true; | |
1414 | } | |
1415 | ||
ec3d07cb | 1416 | goto no_print; |
b10c78c5 | 1417 | } |
01f10bc8 RR |
1418 | |
1419 | switch (comparison_method) { | |
1420 | case COMPUTE_DELTA: | |
1421 | if (pair->diff.computed) | |
1422 | diff = pair->diff.period_ratio_delta; | |
1423 | else | |
1424 | diff = compute_delta(he, pair); | |
1425 | ||
01f10bc8 RR |
1426 | scnprintf(pfmt, 20, "%%%+d.2f%%%%", dfmt->header_width - 1); |
1427 | return percent_color_snprintf(hpp->buf, hpp->size, | |
1428 | pfmt, diff); | |
1f513b2c RR |
1429 | case COMPUTE_RATIO: |
1430 | if (he->dummy) | |
1431 | goto dummy_print; | |
1432 | if (pair->diff.computed) | |
1433 | diff = pair->diff.period_ratio; | |
1434 | else | |
1435 | diff = compute_ratio(he, pair); | |
1436 | ||
1437 | scnprintf(pfmt, 20, "%%%d.6f", dfmt->header_width); | |
1438 | return value_color_snprintf(hpp->buf, hpp->size, | |
1439 | pfmt, diff); | |
a5846e21 RR |
1440 | case COMPUTE_WEIGHTED_DIFF: |
1441 | if (he->dummy) | |
1442 | goto dummy_print; | |
1443 | if (pair->diff.computed) | |
1444 | wdiff = pair->diff.wdiff; | |
1445 | else | |
1446 | wdiff = compute_wdiff(he, pair); | |
1447 | ||
1448 | scnprintf(pfmt, 20, "%%14ld", dfmt->header_width); | |
1449 | return color_snprintf(hpp->buf, hpp->size, | |
1450 | get_percent_color(wdiff), | |
1451 | pfmt, wdiff); | |
b10c78c5 JY |
1452 | case COMPUTE_CYCLES: |
1453 | return cycles_printf(he, pair, hpp, dfmt->header_width); | |
01f10bc8 RR |
1454 | default: |
1455 | BUG_ON(1); | |
1456 | } | |
1457 | dummy_print: | |
ec3d07cb NK |
1458 | return scnprintf(hpp->buf, hpp->size, "%*s", |
1459 | dfmt->header_width, "N/A"); | |
1460 | no_print: | |
01f10bc8 RR |
1461 | return scnprintf(hpp->buf, hpp->size, "%*s", |
1462 | dfmt->header_width, pfmt); | |
1463 | } | |
1464 | ||
1465 | static int hpp__color_delta(struct perf_hpp_fmt *fmt, | |
1466 | struct perf_hpp *hpp, struct hist_entry *he) | |
1467 | { | |
1468 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_DELTA); | |
1469 | } | |
1470 | ||
1f513b2c RR |
1471 | static int hpp__color_ratio(struct perf_hpp_fmt *fmt, |
1472 | struct perf_hpp *hpp, struct hist_entry *he) | |
1473 | { | |
1474 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_RATIO); | |
1475 | } | |
1476 | ||
a5846e21 RR |
1477 | static int hpp__color_wdiff(struct perf_hpp_fmt *fmt, |
1478 | struct perf_hpp *hpp, struct hist_entry *he) | |
1479 | { | |
1480 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_WEIGHTED_DIFF); | |
1481 | } | |
1482 | ||
b10c78c5 JY |
1483 | static int hpp__color_cycles(struct perf_hpp_fmt *fmt, |
1484 | struct perf_hpp *hpp, struct hist_entry *he) | |
1485 | { | |
1486 | return __hpp__color_compare(fmt, hpp, he, COMPUTE_CYCLES); | |
1487 | } | |
1488 | ||
cebf7d51 JY |
1489 | static int all_zero(unsigned long *vals, int len) |
1490 | { | |
1491 | int i; | |
1492 | ||
1493 | for (i = 0; i < len; i++) | |
1494 | if (vals[i] != 0) | |
1495 | return 0; | |
1496 | return 1; | |
1497 | } | |
1498 | ||
1499 | static int print_cycles_spark(char *bf, int size, unsigned long *svals, u64 n) | |
1500 | { | |
1501 | int printed; | |
1502 | ||
1503 | if (n <= 1) | |
1504 | return 0; | |
1505 | ||
1506 | if (n > NUM_SPARKS) | |
1507 | n = NUM_SPARKS; | |
1508 | if (all_zero(svals, n)) | |
1509 | return 0; | |
1510 | ||
1511 | printed = print_spark(bf, size, svals, n); | |
1512 | printed += scnprintf(bf + printed, size - printed, " "); | |
1513 | return printed; | |
1514 | } | |
1515 | ||
1516 | static int hpp__color_cycles_hist(struct perf_hpp_fmt *fmt, | |
1517 | struct perf_hpp *hpp, struct hist_entry *he) | |
1518 | { | |
1519 | struct diff_hpp_fmt *dfmt = | |
1520 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1521 | struct hist_entry *pair = get_pair_fmt(he, dfmt); | |
1522 | struct block_hist *bh = container_of(he, struct block_hist, he); | |
1523 | struct block_hist *bh_pair; | |
1524 | struct hist_entry *block_he; | |
1525 | char spark[32], buf[128]; | |
1526 | double r; | |
1527 | int ret, pad; | |
1528 | ||
1529 | if (!pair) { | |
1530 | if (bh->block_idx) | |
1531 | hpp->skip = true; | |
1532 | ||
1533 | goto no_print; | |
1534 | } | |
1535 | ||
1536 | bh_pair = container_of(pair, struct block_hist, he); | |
1537 | ||
1538 | block_he = hists__get_entry(&bh_pair->block_hists, bh->block_idx); | |
1539 | if (!block_he) { | |
1540 | hpp->skip = true; | |
1541 | goto no_print; | |
1542 | } | |
1543 | ||
1544 | ret = print_cycles_spark(spark, sizeof(spark), block_he->diff.svals, | |
1545 | block_he->diff.stats.n); | |
1546 | ||
1547 | r = rel_stddev_stats(stddev_stats(&block_he->diff.stats), | |
1548 | avg_stats(&block_he->diff.stats)); | |
1549 | ||
1550 | if (ret) { | |
1551 | /* | |
1552 | * Padding spaces if number of sparks less than NUM_SPARKS | |
1553 | * otherwise the output is not aligned. | |
1554 | */ | |
1555 | pad = NUM_SPARKS - ((ret - 1) / 3); | |
1556 | scnprintf(buf, sizeof(buf), "%s%5.1f%% %s", "\u00B1", r, spark); | |
1557 | ret = scnprintf(hpp->buf, hpp->size, "%*s", | |
1558 | dfmt->header_width, buf); | |
1559 | ||
1560 | if (pad) { | |
1561 | ret += scnprintf(hpp->buf + ret, hpp->size - ret, | |
1562 | "%-*s", pad, " "); | |
1563 | } | |
1564 | ||
1565 | return ret; | |
1566 | } | |
1567 | ||
1568 | no_print: | |
1569 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
1570 | dfmt->header_width, " "); | |
1571 | } | |
1572 | ||
345dc0b4 JO |
1573 | static void |
1574 | hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size) | |
1575 | { | |
1576 | switch (idx) { | |
1577 | case PERF_HPP_DIFF__PERIOD_BASELINE: | |
1578 | scnprintf(buf, size, "%" PRIu64, he->stat.period); | |
7aaf6b35 | 1579 | break; |
345dc0b4 JO |
1580 | |
1581 | default: | |
81d5f958 | 1582 | break; |
345dc0b4 JO |
1583 | } |
1584 | } | |
1585 | ||
1586 | static void | |
1587 | hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair, | |
1588 | int idx, char *buf, size_t size) | |
1589 | { | |
1590 | double diff; | |
1591 | double ratio; | |
1592 | s64 wdiff; | |
1593 | ||
1594 | switch (idx) { | |
1595 | case PERF_HPP_DIFF__DELTA: | |
a1668c25 | 1596 | case PERF_HPP_DIFF__DELTA_ABS: |
345dc0b4 JO |
1597 | if (pair->diff.computed) |
1598 | diff = pair->diff.period_ratio_delta; | |
1599 | else | |
ef358e6d | 1600 | diff = compute_delta(he, pair); |
345dc0b4 | 1601 | |
ec3d07cb | 1602 | scnprintf(buf, size, "%+4.2F%%", diff); |
345dc0b4 JO |
1603 | break; |
1604 | ||
1605 | case PERF_HPP_DIFF__RATIO: | |
1606 | /* No point for ratio number if we are dummy.. */ | |
ec3d07cb NK |
1607 | if (he->dummy) { |
1608 | scnprintf(buf, size, "N/A"); | |
345dc0b4 | 1609 | break; |
ec3d07cb | 1610 | } |
345dc0b4 JO |
1611 | |
1612 | if (pair->diff.computed) | |
1613 | ratio = pair->diff.period_ratio; | |
1614 | else | |
ef358e6d | 1615 | ratio = compute_ratio(he, pair); |
345dc0b4 JO |
1616 | |
1617 | if (ratio > 0.0) | |
1618 | scnprintf(buf, size, "%14.6F", ratio); | |
1619 | break; | |
1620 | ||
1621 | case PERF_HPP_DIFF__WEIGHTED_DIFF: | |
1622 | /* No point for wdiff number if we are dummy.. */ | |
ec3d07cb NK |
1623 | if (he->dummy) { |
1624 | scnprintf(buf, size, "N/A"); | |
345dc0b4 | 1625 | break; |
ec3d07cb | 1626 | } |
345dc0b4 JO |
1627 | |
1628 | if (pair->diff.computed) | |
1629 | wdiff = pair->diff.wdiff; | |
1630 | else | |
ef358e6d | 1631 | wdiff = compute_wdiff(he, pair); |
345dc0b4 JO |
1632 | |
1633 | if (wdiff != 0) | |
1634 | scnprintf(buf, size, "%14ld", wdiff); | |
1635 | break; | |
1636 | ||
1637 | case PERF_HPP_DIFF__FORMULA: | |
ef358e6d | 1638 | formula_fprintf(he, pair, buf, size); |
7aaf6b35 | 1639 | break; |
345dc0b4 JO |
1640 | |
1641 | case PERF_HPP_DIFF__PERIOD: | |
1642 | scnprintf(buf, size, "%" PRIu64, pair->stat.period); | |
1643 | break; | |
1644 | ||
7aaf6b35 JO |
1645 | default: |
1646 | BUG_ON(1); | |
8284bbea | 1647 | } |
345dc0b4 JO |
1648 | } |
1649 | ||
1650 | static void | |
22aeb7f5 JO |
1651 | __hpp__entry_global(struct hist_entry *he, struct diff_hpp_fmt *dfmt, |
1652 | char *buf, size_t size) | |
345dc0b4 | 1653 | { |
5f3f8d3b | 1654 | struct hist_entry *pair = get_pair_fmt(he, dfmt); |
22aeb7f5 | 1655 | int idx = dfmt->idx; |
345dc0b4 JO |
1656 | |
1657 | /* baseline is special */ | |
1658 | if (idx == PERF_HPP_DIFF__BASELINE) | |
1659 | hpp__entry_baseline(he, buf, size); | |
1660 | else { | |
1661 | if (pair) | |
1662 | hpp__entry_pair(he, pair, idx, buf, size); | |
1663 | else | |
1664 | hpp__entry_unpair(he, idx, buf, size); | |
1665 | } | |
1666 | } | |
1667 | ||
1668 | static int hpp__entry_global(struct perf_hpp_fmt *_fmt, struct perf_hpp *hpp, | |
1669 | struct hist_entry *he) | |
1670 | { | |
1671 | struct diff_hpp_fmt *dfmt = | |
1672 | container_of(_fmt, struct diff_hpp_fmt, fmt); | |
1673 | char buf[MAX_COL_WIDTH] = " "; | |
1674 | ||
22aeb7f5 | 1675 | __hpp__entry_global(he, dfmt, buf, MAX_COL_WIDTH); |
345dc0b4 JO |
1676 | |
1677 | if (symbol_conf.field_sep) | |
1678 | return scnprintf(hpp->buf, hpp->size, "%s", buf); | |
1679 | else | |
1680 | return scnprintf(hpp->buf, hpp->size, "%*s", | |
1681 | dfmt->header_width, buf); | |
1682 | } | |
1683 | ||
94a0793d | 1684 | static int hpp__header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, |
74bb43f2 | 1685 | struct hists *hists __maybe_unused, |
29659ab4 JO |
1686 | int line __maybe_unused, |
1687 | int *span __maybe_unused) | |
345dc0b4 JO |
1688 | { |
1689 | struct diff_hpp_fmt *dfmt = | |
1690 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1691 | ||
1692 | BUG_ON(!dfmt->header); | |
1693 | return scnprintf(hpp->buf, hpp->size, dfmt->header); | |
1694 | } | |
1695 | ||
1696 | static int hpp__width(struct perf_hpp_fmt *fmt, | |
94a0793d | 1697 | struct perf_hpp *hpp __maybe_unused, |
da1b0407 | 1698 | struct hists *hists __maybe_unused) |
345dc0b4 JO |
1699 | { |
1700 | struct diff_hpp_fmt *dfmt = | |
1701 | container_of(fmt, struct diff_hpp_fmt, fmt); | |
1702 | ||
1703 | BUG_ON(dfmt->header_width <= 0); | |
1704 | return dfmt->header_width; | |
1705 | } | |
1706 | ||
22aeb7f5 | 1707 | static void init_header(struct data__file *d, struct diff_hpp_fmt *dfmt) |
345dc0b4 JO |
1708 | { |
1709 | #define MAX_HEADER_NAME 100 | |
1710 | char buf_indent[MAX_HEADER_NAME]; | |
1711 | char buf[MAX_HEADER_NAME]; | |
1712 | const char *header = NULL; | |
1713 | int width = 0; | |
1714 | ||
1715 | BUG_ON(dfmt->idx >= PERF_HPP_DIFF__MAX_INDEX); | |
1716 | header = columns[dfmt->idx].name; | |
1717 | width = columns[dfmt->idx].width; | |
1718 | ||
1719 | /* Only our defined HPP fmts should appear here. */ | |
1720 | BUG_ON(!header); | |
1721 | ||
22aeb7f5 JO |
1722 | if (data__files_cnt > 2) |
1723 | scnprintf(buf, MAX_HEADER_NAME, "%s/%d", header, d->idx); | |
1724 | ||
345dc0b4 JO |
1725 | #define NAME (data__files_cnt > 2 ? buf : header) |
1726 | dfmt->header_width = width; | |
1727 | width = (int) strlen(NAME); | |
1728 | if (dfmt->header_width < width) | |
1729 | dfmt->header_width = width; | |
1730 | ||
1731 | scnprintf(buf_indent, MAX_HEADER_NAME, "%*s", | |
1732 | dfmt->header_width, NAME); | |
1733 | ||
1734 | dfmt->header = strdup(buf_indent); | |
1735 | #undef MAX_HEADER_NAME | |
1736 | #undef NAME | |
1737 | } | |
1738 | ||
c818b498 | 1739 | static void data__hpp_register(struct data__file *d, int idx) |
345dc0b4 | 1740 | { |
c818b498 JO |
1741 | struct diff_hpp_fmt *dfmt = &d->fmt[idx]; |
1742 | struct perf_hpp_fmt *fmt = &dfmt->fmt; | |
1743 | ||
1744 | dfmt->idx = idx; | |
1745 | ||
1746 | fmt->header = hpp__header; | |
1747 | fmt->width = hpp__width; | |
1748 | fmt->entry = hpp__entry_global; | |
e7024fc3 NK |
1749 | fmt->cmp = hist_entry__cmp_nop; |
1750 | fmt->collapse = hist_entry__cmp_nop; | |
c818b498 JO |
1751 | |
1752 | /* TODO more colors */ | |
01f10bc8 RR |
1753 | switch (idx) { |
1754 | case PERF_HPP_DIFF__BASELINE: | |
c818b498 | 1755 | fmt->color = hpp__color_baseline; |
e7024fc3 | 1756 | fmt->sort = hist_entry__cmp_baseline; |
01f10bc8 RR |
1757 | break; |
1758 | case PERF_HPP_DIFF__DELTA: | |
1759 | fmt->color = hpp__color_delta; | |
e7024fc3 | 1760 | fmt->sort = hist_entry__cmp_delta; |
01f10bc8 | 1761 | break; |
1f513b2c RR |
1762 | case PERF_HPP_DIFF__RATIO: |
1763 | fmt->color = hpp__color_ratio; | |
e7024fc3 | 1764 | fmt->sort = hist_entry__cmp_ratio; |
1f513b2c | 1765 | break; |
a5846e21 RR |
1766 | case PERF_HPP_DIFF__WEIGHTED_DIFF: |
1767 | fmt->color = hpp__color_wdiff; | |
e7024fc3 | 1768 | fmt->sort = hist_entry__cmp_wdiff; |
a5846e21 | 1769 | break; |
a1668c25 NK |
1770 | case PERF_HPP_DIFF__DELTA_ABS: |
1771 | fmt->color = hpp__color_delta; | |
1772 | fmt->sort = hist_entry__cmp_delta_abs; | |
1773 | break; | |
b10c78c5 JY |
1774 | case PERF_HPP_DIFF__CYCLES: |
1775 | fmt->color = hpp__color_cycles; | |
1776 | fmt->sort = hist_entry__cmp_nop; | |
1777 | break; | |
cebf7d51 JY |
1778 | case PERF_HPP_DIFF__CYCLES_HIST: |
1779 | fmt->color = hpp__color_cycles_hist; | |
1780 | fmt->sort = hist_entry__cmp_nop; | |
1781 | break; | |
01f10bc8 | 1782 | default: |
e7024fc3 | 1783 | fmt->sort = hist_entry__cmp_nop; |
01f10bc8 RR |
1784 | break; |
1785 | } | |
345dc0b4 | 1786 | |
22aeb7f5 | 1787 | init_header(d, dfmt); |
c818b498 | 1788 | perf_hpp__column_register(fmt); |
e7024fc3 | 1789 | perf_hpp__register_sort_field(fmt); |
345dc0b4 JO |
1790 | } |
1791 | ||
566b5cfb | 1792 | static int ui_init(void) |
345dc0b4 | 1793 | { |
c818b498 | 1794 | struct data__file *d; |
566b5cfb | 1795 | struct perf_hpp_fmt *fmt; |
c818b498 JO |
1796 | int i; |
1797 | ||
1798 | data__for_each_file(i, d) { | |
1799 | ||
1800 | /* | |
4d39c89f | 1801 | * Baseline or compute related columns: |
c818b498 JO |
1802 | * |
1803 | * PERF_HPP_DIFF__BASELINE | |
1804 | * PERF_HPP_DIFF__DELTA | |
1805 | * PERF_HPP_DIFF__RATIO | |
1806 | * PERF_HPP_DIFF__WEIGHTED_DIFF | |
cebf7d51 | 1807 | * PERF_HPP_DIFF__CYCLES |
c818b498 JO |
1808 | */ |
1809 | data__hpp_register(d, i ? compute_2_hpp[compute] : | |
1810 | PERF_HPP_DIFF__BASELINE); | |
1d77822e | 1811 | |
cebf7d51 JY |
1812 | if (cycles_hist && i) |
1813 | data__hpp_register(d, PERF_HPP_DIFF__CYCLES_HIST); | |
1814 | ||
c818b498 JO |
1815 | /* |
1816 | * And the rest: | |
1817 | * | |
1818 | * PERF_HPP_DIFF__FORMULA | |
1819 | * PERF_HPP_DIFF__PERIOD | |
1820 | * PERF_HPP_DIFF__PERIOD_BASELINE | |
1821 | */ | |
1822 | if (show_formula && i) | |
1823 | data__hpp_register(d, PERF_HPP_DIFF__FORMULA); | |
ed279da2 | 1824 | |
c818b498 JO |
1825 | if (show_period) |
1826 | data__hpp_register(d, i ? PERF_HPP_DIFF__PERIOD : | |
1827 | PERF_HPP_DIFF__PERIOD_BASELINE); | |
61949b21 | 1828 | } |
566b5cfb NK |
1829 | |
1830 | if (!sort_compute) | |
1831 | return 0; | |
1832 | ||
1833 | /* | |
1834 | * Prepend an fmt to sort on columns at 'sort_compute' first. | |
1835 | * This fmt is added only to the sort list but not to the | |
1836 | * output fields list. | |
1837 | * | |
1838 | * Note that this column (data) can be compared twice - one | |
1839 | * for this 'sort_compute' fmt and another for the normal | |
1840 | * diff_hpp_fmt. But it shouldn't a problem as most entries | |
1841 | * will be sorted out by first try or baseline and comparing | |
1842 | * is not a costly operation. | |
1843 | */ | |
1844 | fmt = zalloc(sizeof(*fmt)); | |
1845 | if (fmt == NULL) { | |
1846 | pr_err("Memory allocation failed\n"); | |
1847 | return -1; | |
1848 | } | |
1849 | ||
1850 | fmt->cmp = hist_entry__cmp_nop; | |
1851 | fmt->collapse = hist_entry__cmp_nop; | |
1852 | ||
1853 | switch (compute) { | |
1854 | case COMPUTE_DELTA: | |
1855 | fmt->sort = hist_entry__cmp_delta_idx; | |
1856 | break; | |
1857 | case COMPUTE_RATIO: | |
1858 | fmt->sort = hist_entry__cmp_ratio_idx; | |
1859 | break; | |
1860 | case COMPUTE_WEIGHTED_DIFF: | |
1861 | fmt->sort = hist_entry__cmp_wdiff_idx; | |
1862 | break; | |
a1668c25 NK |
1863 | case COMPUTE_DELTA_ABS: |
1864 | fmt->sort = hist_entry__cmp_delta_abs_idx; | |
1865 | break; | |
99150a1f JY |
1866 | case COMPUTE_CYCLES: |
1867 | /* | |
1868 | * Should set since 'fmt->sort' is called without | |
1869 | * checking valid during sorting | |
1870 | */ | |
1871 | fmt->sort = hist_entry__cmp_nop; | |
1872 | break; | |
566b5cfb NK |
1873 | default: |
1874 | BUG_ON(1); | |
1875 | } | |
1876 | ||
a1c9f97f | 1877 | perf_hpp__prepend_sort_field(fmt); |
566b5cfb | 1878 | return 0; |
1d77822e JO |
1879 | } |
1880 | ||
ec308426 | 1881 | static int data_init(int argc, const char **argv) |
86a9eee0 | 1882 | { |
ec308426 JO |
1883 | struct data__file *d; |
1884 | static const char *defaults[] = { | |
1885 | "perf.data.old", | |
1886 | "perf.data", | |
1887 | }; | |
22aeb7f5 | 1888 | bool use_default = true; |
ec308426 JO |
1889 | int i; |
1890 | ||
1891 | data__files_cnt = 2; | |
1892 | ||
86a9eee0 | 1893 | if (argc) { |
22aeb7f5 | 1894 | if (argc == 1) |
ec308426 | 1895 | defaults[1] = argv[0]; |
22aeb7f5 JO |
1896 | else { |
1897 | data__files_cnt = argc; | |
1898 | use_default = false; | |
1899 | } | |
d8d9608f | 1900 | } else if (perf_guest) { |
ec308426 JO |
1901 | defaults[0] = "perf.data.host"; |
1902 | defaults[1] = "perf.data.guest"; | |
86a9eee0 ACM |
1903 | } |
1904 | ||
5f3f8d3b JO |
1905 | if (sort_compute >= (unsigned int) data__files_cnt) { |
1906 | pr_err("Order option out of limit.\n"); | |
1907 | return -EINVAL; | |
1908 | } | |
1909 | ||
ec308426 JO |
1910 | data__files = zalloc(sizeof(*data__files) * data__files_cnt); |
1911 | if (!data__files) | |
1912 | return -ENOMEM; | |
1913 | ||
1914 | data__for_each_file(i, d) { | |
8ceb41d7 | 1915 | struct perf_data *data = &d->data; |
f5fc1412 | 1916 | |
2d4f2799 | 1917 | data->path = use_default ? defaults[i] : argv[i]; |
681f34d5 LH |
1918 | data->mode = PERF_DATA_MODE_READ; |
1919 | data->force = force; | |
f5fc1412 | 1920 | |
ec308426 JO |
1921 | d->idx = i; |
1922 | } | |
1923 | ||
1924 | return 0; | |
1925 | } | |
1926 | ||
d49dd15d NK |
1927 | static int diff__config(const char *var, const char *value, |
1928 | void *cb __maybe_unused) | |
1929 | { | |
1930 | if (!strcmp(var, "diff.order")) { | |
25ce4bb8 ACM |
1931 | int ret; |
1932 | if (perf_config_int(&ret, var, value) < 0) | |
1933 | return -1; | |
1934 | sort_compute = ret; | |
d49dd15d NK |
1935 | return 0; |
1936 | } | |
4b35994a NK |
1937 | if (!strcmp(var, "diff.compute")) { |
1938 | if (!strcmp(value, "delta")) { | |
1939 | compute = COMPUTE_DELTA; | |
1940 | } else if (!strcmp(value, "delta-abs")) { | |
1941 | compute = COMPUTE_DELTA_ABS; | |
1942 | } else if (!strcmp(value, "ratio")) { | |
1943 | compute = COMPUTE_RATIO; | |
1944 | } else if (!strcmp(value, "wdiff")) { | |
1945 | compute = COMPUTE_WEIGHTED_DIFF; | |
1946 | } else { | |
1947 | pr_err("Invalid compute method: %s\n", value); | |
1948 | return -1; | |
1949 | } | |
1950 | } | |
d49dd15d NK |
1951 | |
1952 | return 0; | |
1953 | } | |
1954 | ||
b0ad8ea6 | 1955 | int cmd_diff(int argc, const char **argv) |
ec308426 | 1956 | { |
9ab1f508 KL |
1957 | int ret = hists__init(); |
1958 | ||
1959 | if (ret < 0) | |
1960 | return ret; | |
1961 | ||
d49dd15d NK |
1962 | perf_config(diff__config, NULL); |
1963 | ||
ec308426 JO |
1964 | argc = parse_options(argc, argv, options, diff_usage, 0); |
1965 | ||
63b42fce NK |
1966 | if (quiet) |
1967 | perf_quiet_option(); | |
1968 | ||
cebf7d51 JY |
1969 | if (cycles_hist && (compute != COMPUTE_CYCLES)) |
1970 | usage_with_options(diff_usage, options); | |
1971 | ||
2a09a84c JY |
1972 | if (pdiff.stream) |
1973 | compute = COMPUTE_STREAM; | |
1974 | ||
99150a1f JY |
1975 | symbol__annotation_init(); |
1976 | ||
0a7e6d1b | 1977 | if (symbol__init(NULL) < 0) |
655000e7 ACM |
1978 | return -1; |
1979 | ||
ec308426 JO |
1980 | if (data_init(argc, argv) < 0) |
1981 | return -1; | |
1982 | ||
30d81553 JY |
1983 | if (check_file_brstack() < 0) |
1984 | return -1; | |
1985 | ||
2a09a84c JY |
1986 | if ((compute == COMPUTE_CYCLES || compute == COMPUTE_STREAM) |
1987 | && !pdiff.has_br_stack) { | |
99150a1f | 1988 | return -1; |
2a09a84c | 1989 | } |
99150a1f | 1990 | |
2a09a84c JY |
1991 | if (compute == COMPUTE_STREAM) { |
1992 | symbol_conf.show_branchflag_count = true; | |
1993 | symbol_conf.disable_add2line_warn = true; | |
1994 | callchain_param.mode = CHAIN_FLAT; | |
1995 | callchain_param.key = CCKEY_SRCLINE; | |
1996 | callchain_param.branch_callstack = 1; | |
1997 | symbol_conf.use_callchain = true; | |
1998 | callchain_register_param(&callchain_param); | |
1999 | sort_order = "srcline,symbol,dso"; | |
2000 | } else { | |
2001 | if (ui_init() < 0) | |
2002 | return -1; | |
1d77822e | 2003 | |
2a09a84c JY |
2004 | sort__mode = SORT_MODE__DIFF; |
2005 | } | |
512ae1bd | 2006 | |
40184c46 | 2007 | if (setup_sorting(NULL) < 0) |
55309985 NK |
2008 | usage_with_options(diff_usage, options); |
2009 | ||
86a9eee0 | 2010 | setup_pager(); |
c351c281 | 2011 | |
08e71542 | 2012 | sort__setup_elide(NULL); |
c351c281 | 2013 | |
86a9eee0 ACM |
2014 | return __cmd_diff(); |
2015 | } |