1 | // SPDX-License-Identifier: GPL-2.0 |
2 | #include "util/debug.h" |
3 | #include "util/dso.h" |
4 | #include "util/event.h" |
5 | #include "util/map.h" |
6 | #include "util/symbol.h" |
7 | #include "util/sort.h" |
8 | #include "util/evsel.h" |
9 | #include "util/evlist.h" |
10 | #include "util/machine.h" |
11 | #include "util/parse-events.h" |
12 | #include "util/thread.h" |
13 | #include "tests/tests.h" |
14 | #include "tests/hists_common.h" |
15 | #include <linux/kernel.h> |
16 | |
17 | struct sample { |
18 | u32 pid; |
19 | u64 ip; |
20 | struct thread *thread; |
21 | struct map *map; |
22 | struct symbol *sym; |
23 | }; |
24 | |
25 | /* For the numbers, see hists_common.c */ |
26 | static struct sample fake_samples[] = { |
27 | /* perf [kernel] schedule() */ |
28 | { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, }, |
29 | /* perf [perf] main() */ |
30 | { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, }, |
31 | /* perf [perf] cmd_record() */ |
32 | { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_CMD_RECORD, }, |
33 | /* perf [libc] malloc() */ |
34 | { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, }, |
35 | /* perf [libc] free() */ |
36 | { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_FREE, }, |
37 | /* perf [perf] main() */ |
38 | { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, }, |
39 | /* perf [kernel] page_fault() */ |
40 | { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, }, |
41 | /* bash [bash] main() */ |
42 | { .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, }, |
43 | /* bash [bash] xmalloc() */ |
44 | { .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, }, |
45 | /* bash [kernel] page_fault() */ |
46 | { .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, }, |
47 | }; |
48 | |
49 | /* |
50 | * Will be cast to struct ip_callchain which has all 64 bit entries |
51 | * of nr and ips[]. |
52 | */ |
53 | static u64 fake_callchains[][10] = { |
54 | /* schedule => run_command => main */ |
55 | { 3, FAKE_IP_KERNEL_SCHEDULE, FAKE_IP_PERF_RUN_COMMAND, FAKE_IP_PERF_MAIN, }, |
56 | /* main */ |
57 | { 1, FAKE_IP_PERF_MAIN, }, |
58 | /* cmd_record => run_command => main */ |
59 | { 3, FAKE_IP_PERF_CMD_RECORD, FAKE_IP_PERF_RUN_COMMAND, FAKE_IP_PERF_MAIN, }, |
60 | /* malloc => cmd_record => run_command => main */ |
61 | { 4, FAKE_IP_LIBC_MALLOC, FAKE_IP_PERF_CMD_RECORD, FAKE_IP_PERF_RUN_COMMAND, |
62 | FAKE_IP_PERF_MAIN, }, |
63 | /* free => cmd_record => run_command => main */ |
64 | { 4, FAKE_IP_LIBC_FREE, FAKE_IP_PERF_CMD_RECORD, FAKE_IP_PERF_RUN_COMMAND, |
65 | FAKE_IP_PERF_MAIN, }, |
66 | /* main */ |
67 | { 1, FAKE_IP_PERF_MAIN, }, |
68 | /* page_fault => sys_perf_event_open => run_command => main */ |
69 | { 4, FAKE_IP_KERNEL_PAGE_FAULT, FAKE_IP_KERNEL_SYS_PERF_EVENT_OPEN, |
70 | FAKE_IP_PERF_RUN_COMMAND, FAKE_IP_PERF_MAIN, }, |
71 | /* main */ |
72 | { 1, FAKE_IP_BASH_MAIN, }, |
73 | /* xmalloc => malloc => xmalloc => malloc => xmalloc => main */ |
74 | { 6, FAKE_IP_BASH_XMALLOC, FAKE_IP_LIBC_MALLOC, FAKE_IP_BASH_XMALLOC, |
75 | FAKE_IP_LIBC_MALLOC, FAKE_IP_BASH_XMALLOC, FAKE_IP_BASH_MAIN, }, |
76 | /* page_fault => malloc => main */ |
77 | { 3, FAKE_IP_KERNEL_PAGE_FAULT, FAKE_IP_LIBC_MALLOC, FAKE_IP_BASH_MAIN, }, |
78 | }; |
79 | |
80 | static int add_hist_entries(struct hists *hists, struct machine *machine) |
81 | { |
82 | struct addr_location al; |
83 | struct evsel *evsel = hists_to_evsel(hists); |
84 | struct perf_sample sample = { .period = 1000, }; |
85 | size_t i; |
86 | |
87 | addr_location__init(&al); |
88 | for (i = 0; i < ARRAY_SIZE(fake_samples); i++) { |
89 | struct hist_entry_iter iter = { |
90 | .evsel = evsel, |
91 | .sample = &sample, |
92 | .hide_unresolved = false, |
93 | }; |
94 | |
95 | if (symbol_conf.cumulate_callchain) |
96 | iter.ops = &hist_iter_cumulative; |
97 | else |
98 | iter.ops = &hist_iter_normal; |
99 | |
100 | sample.cpumode = PERF_RECORD_MISC_USER; |
101 | sample.pid = fake_samples[i].pid; |
102 | sample.tid = fake_samples[i].pid; |
103 | sample.ip = fake_samples[i].ip; |
104 | sample.callchain = (struct ip_callchain *)fake_callchains[i]; |
105 | |
106 | if (machine__resolve(machine, &al, &sample) < 0) |
107 | goto out; |
108 | |
109 | if (hist_entry_iter__add(&iter, &al, sysctl_perf_event_max_stack, |
110 | NULL) < 0) { |
111 | goto out; |
112 | } |
113 | |
114 | thread__put(fake_samples[i].thread); |
115 | fake_samples[i].thread = thread__get(al.thread); |
116 | map__put(fake_samples[i].map); |
117 | fake_samples[i].map = map__get(al.map); |
118 | fake_samples[i].sym = al.sym; |
119 | } |
120 | |
121 | addr_location__exit(&al); |
122 | return TEST_OK; |
123 | |
124 | out: |
125 | pr_debug("Not enough memory for adding a hist entry\n" ); |
126 | addr_location__exit(&al); |
127 | return TEST_FAIL; |
128 | } |
129 | |
130 | static void del_hist_entries(struct hists *hists) |
131 | { |
132 | struct hist_entry *he; |
133 | struct rb_root_cached *root_in; |
134 | struct rb_root_cached *root_out; |
135 | struct rb_node *node; |
136 | |
137 | if (hists__has(hists, need_collapse)) |
138 | root_in = &hists->entries_collapsed; |
139 | else |
140 | root_in = hists->entries_in; |
141 | |
142 | root_out = &hists->entries; |
143 | |
144 | while (!RB_EMPTY_ROOT(&root_out->rb_root)) { |
145 | node = rb_first_cached(root_out); |
146 | |
147 | he = rb_entry(node, struct hist_entry, rb_node); |
148 | rb_erase_cached(node, root_out); |
149 | rb_erase_cached(&he->rb_node_in, root_in); |
150 | hist_entry__delete(he); |
151 | } |
152 | } |
153 | |
154 | static void put_fake_samples(void) |
155 | { |
156 | size_t i; |
157 | |
158 | for (i = 0; i < ARRAY_SIZE(fake_samples); i++) { |
159 | map__zput(fake_samples[i].map); |
160 | thread__zput(fake_samples[i].thread); |
161 | } |
162 | } |
163 | |
164 | typedef int (*test_fn_t)(struct evsel *, struct machine *); |
165 | |
166 | #define COMM(he) (thread__comm_str(he->thread)) |
167 | #define DSO(he) (map__dso(he->ms.map)->short_name) |
168 | #define SYM(he) (he->ms.sym->name) |
169 | #define CPU(he) (he->cpu) |
170 | #define DEPTH(he) (he->callchain->max_depth) |
171 | #define CDSO(cl) (map__dso(cl->ms.map)->short_name) |
172 | #define CSYM(cl) (cl->ms.sym->name) |
173 | |
174 | struct result { |
175 | u64 children; |
176 | u64 self; |
177 | const char *comm; |
178 | const char *dso; |
179 | const char *sym; |
180 | }; |
181 | |
182 | struct callchain_result { |
183 | u64 nr; |
184 | struct { |
185 | const char *dso; |
186 | const char *sym; |
187 | } node[10]; |
188 | }; |
189 | |
190 | static int do_test(struct hists *hists, struct result *expected, size_t nr_expected, |
191 | struct callchain_result *expected_callchain, size_t nr_callchain) |
192 | { |
193 | char buf[32]; |
194 | size_t i, c; |
195 | struct hist_entry *he; |
196 | struct rb_root *root; |
197 | struct rb_node *node; |
198 | struct callchain_node *cnode; |
199 | struct callchain_list *clist; |
200 | |
201 | /* |
202 | * adding and deleting hist entries must be done outside of this |
203 | * function since TEST_ASSERT_VAL() returns in case of failure. |
204 | */ |
205 | hists__collapse_resort(hists, NULL); |
206 | evsel__output_resort(hists_to_evsel(hists), NULL); |
207 | |
208 | if (verbose > 2) { |
209 | pr_info("use callchain: %d, cumulate callchain: %d\n" , |
210 | symbol_conf.use_callchain, |
211 | symbol_conf.cumulate_callchain); |
212 | print_hists_out(hists); |
213 | } |
214 | |
215 | root = &hists->entries.rb_root; |
216 | for (node = rb_first(root), i = 0; |
217 | node && (he = rb_entry(node, struct hist_entry, rb_node)); |
218 | node = rb_next(node), i++) { |
219 | scnprintf(buf, sizeof(buf), "Invalid hist entry #%zd" , i); |
220 | |
221 | TEST_ASSERT_VAL("Incorrect number of hist entry" , |
222 | i < nr_expected); |
223 | TEST_ASSERT_VAL(buf, he->stat.period == expected[i].self && |
224 | !strcmp(COMM(he), expected[i].comm) && |
225 | !strcmp(DSO(he), expected[i].dso) && |
226 | !strcmp(SYM(he), expected[i].sym)); |
227 | |
228 | if (symbol_conf.cumulate_callchain) |
229 | TEST_ASSERT_VAL(buf, he->stat_acc->period == expected[i].children); |
230 | |
231 | if (!symbol_conf.use_callchain) |
232 | continue; |
233 | |
234 | /* check callchain entries */ |
235 | root = &he->callchain->node.rb_root; |
236 | |
237 | TEST_ASSERT_VAL("callchains expected" , !RB_EMPTY_ROOT(root)); |
238 | cnode = rb_entry(rb_first(root), struct callchain_node, rb_node); |
239 | |
240 | c = 0; |
241 | list_for_each_entry(clist, &cnode->val, list) { |
242 | scnprintf(buf, sizeof(buf), "Invalid callchain entry #%zd/%zd" , i, c); |
243 | |
244 | TEST_ASSERT_VAL("Incorrect number of callchain entry" , |
245 | c < expected_callchain[i].nr); |
246 | TEST_ASSERT_VAL(buf, |
247 | !strcmp(CDSO(clist), expected_callchain[i].node[c].dso) && |
248 | !strcmp(CSYM(clist), expected_callchain[i].node[c].sym)); |
249 | c++; |
250 | } |
251 | /* TODO: handle multiple child nodes properly */ |
252 | TEST_ASSERT_VAL("Incorrect number of callchain entry" , |
253 | c <= expected_callchain[i].nr); |
254 | } |
255 | TEST_ASSERT_VAL("Incorrect number of hist entry" , |
256 | i == nr_expected); |
257 | TEST_ASSERT_VAL("Incorrect number of callchain entry" , |
258 | !symbol_conf.use_callchain || nr_expected == nr_callchain); |
259 | return 0; |
260 | } |
261 | |
262 | /* NO callchain + NO children */ |
263 | static int test1(struct evsel *evsel, struct machine *machine) |
264 | { |
265 | int err; |
266 | struct hists *hists = evsel__hists(evsel); |
267 | /* |
268 | * expected output: |
269 | * |
270 | * Overhead Command Shared Object Symbol |
271 | * ======== ======= ============= ============== |
272 | * 20.00% perf perf [.] main |
273 | * 10.00% bash [kernel] [k] page_fault |
274 | * 10.00% bash bash [.] main |
275 | * 10.00% bash bash [.] xmalloc |
276 | * 10.00% perf [kernel] [k] page_fault |
277 | * 10.00% perf [kernel] [k] schedule |
278 | * 10.00% perf libc [.] free |
279 | * 10.00% perf libc [.] malloc |
280 | * 10.00% perf perf [.] cmd_record |
281 | */ |
282 | struct result expected[] = { |
283 | { 0, 2000, "perf" , "perf" , "main" }, |
284 | { 0, 1000, "bash" , "[kernel]" , "page_fault" }, |
285 | { 0, 1000, "bash" , "bash" , "main" }, |
286 | { 0, 1000, "bash" , "bash" , "xmalloc" }, |
287 | { 0, 1000, "perf" , "[kernel]" , "page_fault" }, |
288 | { 0, 1000, "perf" , "[kernel]" , "schedule" }, |
289 | { 0, 1000, "perf" , "libc" , "free" }, |
290 | { 0, 1000, "perf" , "libc" , "malloc" }, |
291 | { 0, 1000, "perf" , "perf" , "cmd_record" }, |
292 | }; |
293 | |
294 | symbol_conf.use_callchain = false; |
295 | symbol_conf.cumulate_callchain = false; |
296 | evsel__reset_sample_bit(evsel, CALLCHAIN); |
297 | |
298 | setup_sorting(NULL); |
299 | callchain_register_param(&callchain_param); |
300 | |
301 | err = add_hist_entries(hists, machine); |
302 | if (err < 0) |
303 | goto out; |
304 | |
305 | err = do_test(hists, expected, ARRAY_SIZE(expected), NULL, nr_callchain: 0); |
306 | |
307 | out: |
308 | del_hist_entries(hists); |
309 | reset_output_field(); |
310 | return err; |
311 | } |
312 | |
313 | /* callchain + NO children */ |
314 | static int test2(struct evsel *evsel, struct machine *machine) |
315 | { |
316 | int err; |
317 | struct hists *hists = evsel__hists(evsel); |
318 | /* |
319 | * expected output: |
320 | * |
321 | * Overhead Command Shared Object Symbol |
322 | * ======== ======= ============= ============== |
323 | * 20.00% perf perf [.] main |
324 | * | |
325 | * --- main |
326 | * |
327 | * 10.00% bash [kernel] [k] page_fault |
328 | * | |
329 | * --- page_fault |
330 | * malloc |
331 | * main |
332 | * |
333 | * 10.00% bash bash [.] main |
334 | * | |
335 | * --- main |
336 | * |
337 | * 10.00% bash bash [.] xmalloc |
338 | * | |
339 | * --- xmalloc |
340 | * malloc |
341 | * xmalloc <--- NOTE: there's a cycle |
342 | * malloc |
343 | * xmalloc |
344 | * main |
345 | * |
346 | * 10.00% perf [kernel] [k] page_fault |
347 | * | |
348 | * --- page_fault |
349 | * sys_perf_event_open |
350 | * run_command |
351 | * main |
352 | * |
353 | * 10.00% perf [kernel] [k] schedule |
354 | * | |
355 | * --- schedule |
356 | * run_command |
357 | * main |
358 | * |
359 | * 10.00% perf libc [.] free |
360 | * | |
361 | * --- free |
362 | * cmd_record |
363 | * run_command |
364 | * main |
365 | * |
366 | * 10.00% perf libc [.] malloc |
367 | * | |
368 | * --- malloc |
369 | * cmd_record |
370 | * run_command |
371 | * main |
372 | * |
373 | * 10.00% perf perf [.] cmd_record |
374 | * | |
375 | * --- cmd_record |
376 | * run_command |
377 | * main |
378 | * |
379 | */ |
380 | struct result expected[] = { |
381 | { 0, 2000, "perf" , "perf" , "main" }, |
382 | { 0, 1000, "bash" , "[kernel]" , "page_fault" }, |
383 | { 0, 1000, "bash" , "bash" , "main" }, |
384 | { 0, 1000, "bash" , "bash" , "xmalloc" }, |
385 | { 0, 1000, "perf" , "[kernel]" , "page_fault" }, |
386 | { 0, 1000, "perf" , "[kernel]" , "schedule" }, |
387 | { 0, 1000, "perf" , "libc" , "free" }, |
388 | { 0, 1000, "perf" , "libc" , "malloc" }, |
389 | { 0, 1000, "perf" , "perf" , "cmd_record" }, |
390 | }; |
391 | struct callchain_result expected_callchain[] = { |
392 | { |
393 | 1, { { "perf" , "main" }, }, |
394 | }, |
395 | { |
396 | 3, { { "[kernel]" , "page_fault" }, |
397 | { "libc" , "malloc" }, |
398 | { "bash" , "main" }, }, |
399 | }, |
400 | { |
401 | 1, { { "bash" , "main" }, }, |
402 | }, |
403 | { |
404 | 6, { { "bash" , "xmalloc" }, |
405 | { "libc" , "malloc" }, |
406 | { "bash" , "xmalloc" }, |
407 | { "libc" , "malloc" }, |
408 | { "bash" , "xmalloc" }, |
409 | { "bash" , "main" }, }, |
410 | }, |
411 | { |
412 | 4, { { "[kernel]" , "page_fault" }, |
413 | { "[kernel]" , "sys_perf_event_open" }, |
414 | { "perf" , "run_command" }, |
415 | { "perf" , "main" }, }, |
416 | }, |
417 | { |
418 | 3, { { "[kernel]" , "schedule" }, |
419 | { "perf" , "run_command" }, |
420 | { "perf" , "main" }, }, |
421 | }, |
422 | { |
423 | 4, { { "libc" , "free" }, |
424 | { "perf" , "cmd_record" }, |
425 | { "perf" , "run_command" }, |
426 | { "perf" , "main" }, }, |
427 | }, |
428 | { |
429 | 4, { { "libc" , "malloc" }, |
430 | { "perf" , "cmd_record" }, |
431 | { "perf" , "run_command" }, |
432 | { "perf" , "main" }, }, |
433 | }, |
434 | { |
435 | 3, { { "perf" , "cmd_record" }, |
436 | { "perf" , "run_command" }, |
437 | { "perf" , "main" }, }, |
438 | }, |
439 | }; |
440 | |
441 | symbol_conf.use_callchain = true; |
442 | symbol_conf.cumulate_callchain = false; |
443 | evsel__set_sample_bit(evsel, CALLCHAIN); |
444 | |
445 | setup_sorting(NULL); |
446 | callchain_register_param(&callchain_param); |
447 | |
448 | err = add_hist_entries(hists, machine); |
449 | if (err < 0) |
450 | goto out; |
451 | |
452 | err = do_test(hists, expected, ARRAY_SIZE(expected), |
453 | expected_callchain, ARRAY_SIZE(expected_callchain)); |
454 | |
455 | out: |
456 | del_hist_entries(hists); |
457 | reset_output_field(); |
458 | return err; |
459 | } |
460 | |
461 | /* NO callchain + children */ |
462 | static int test3(struct evsel *evsel, struct machine *machine) |
463 | { |
464 | int err; |
465 | struct hists *hists = evsel__hists(evsel); |
466 | /* |
467 | * expected output: |
468 | * |
469 | * Children Self Command Shared Object Symbol |
470 | * ======== ======== ======= ============= ======================= |
471 | * 70.00% 20.00% perf perf [.] main |
472 | * 50.00% 0.00% perf perf [.] run_command |
473 | * 30.00% 10.00% bash bash [.] main |
474 | * 30.00% 10.00% perf perf [.] cmd_record |
475 | * 20.00% 0.00% bash libc [.] malloc |
476 | * 10.00% 10.00% bash [kernel] [k] page_fault |
477 | * 10.00% 10.00% bash bash [.] xmalloc |
478 | * 10.00% 10.00% perf [kernel] [k] page_fault |
479 | * 10.00% 10.00% perf libc [.] malloc |
480 | * 10.00% 10.00% perf [kernel] [k] schedule |
481 | * 10.00% 10.00% perf libc [.] free |
482 | * 10.00% 0.00% perf [kernel] [k] sys_perf_event_open |
483 | */ |
484 | struct result expected[] = { |
485 | { 7000, 2000, "perf" , "perf" , "main" }, |
486 | { 5000, 0, "perf" , "perf" , "run_command" }, |
487 | { 3000, 1000, "bash" , "bash" , "main" }, |
488 | { 3000, 1000, "perf" , "perf" , "cmd_record" }, |
489 | { 2000, 0, "bash" , "libc" , "malloc" }, |
490 | { 1000, 1000, "bash" , "[kernel]" , "page_fault" }, |
491 | { 1000, 1000, "bash" , "bash" , "xmalloc" }, |
492 | { 1000, 1000, "perf" , "[kernel]" , "page_fault" }, |
493 | { 1000, 1000, "perf" , "[kernel]" , "schedule" }, |
494 | { 1000, 1000, "perf" , "libc" , "free" }, |
495 | { 1000, 1000, "perf" , "libc" , "malloc" }, |
496 | { 1000, 0, "perf" , "[kernel]" , "sys_perf_event_open" }, |
497 | }; |
498 | |
499 | symbol_conf.use_callchain = false; |
500 | symbol_conf.cumulate_callchain = true; |
501 | evsel__reset_sample_bit(evsel, CALLCHAIN); |
502 | |
503 | setup_sorting(NULL); |
504 | callchain_register_param(&callchain_param); |
505 | |
506 | err = add_hist_entries(hists, machine); |
507 | if (err < 0) |
508 | goto out; |
509 | |
510 | err = do_test(hists, expected, ARRAY_SIZE(expected), NULL, nr_callchain: 0); |
511 | |
512 | out: |
513 | del_hist_entries(hists); |
514 | reset_output_field(); |
515 | return err; |
516 | } |
517 | |
518 | /* callchain + children */ |
519 | static int test4(struct evsel *evsel, struct machine *machine) |
520 | { |
521 | int err; |
522 | struct hists *hists = evsel__hists(evsel); |
523 | /* |
524 | * expected output: |
525 | * |
526 | * Children Self Command Shared Object Symbol |
527 | * ======== ======== ======= ============= ======================= |
528 | * 70.00% 20.00% perf perf [.] main |
529 | * | |
530 | * --- main |
531 | * |
532 | * 50.00% 0.00% perf perf [.] run_command |
533 | * | |
534 | * --- run_command |
535 | * main |
536 | * |
537 | * 30.00% 10.00% bash bash [.] main |
538 | * | |
539 | * --- main |
540 | * |
541 | * 30.00% 10.00% perf perf [.] cmd_record |
542 | * | |
543 | * --- cmd_record |
544 | * run_command |
545 | * main |
546 | * |
547 | * 20.00% 0.00% bash libc [.] malloc |
548 | * | |
549 | * --- malloc |
550 | * | |
551 | * |--50.00%-- xmalloc |
552 | * | main |
553 | * --50.00%-- main |
554 | * |
555 | * 10.00% 10.00% bash [kernel] [k] page_fault |
556 | * | |
557 | * --- page_fault |
558 | * malloc |
559 | * main |
560 | * |
561 | * 10.00% 10.00% bash bash [.] xmalloc |
562 | * | |
563 | * --- xmalloc |
564 | * malloc |
565 | * xmalloc <--- NOTE: there's a cycle |
566 | * malloc |
567 | * xmalloc |
568 | * main |
569 | * |
570 | * 10.00% 0.00% perf [kernel] [k] sys_perf_event_open |
571 | * | |
572 | * --- sys_perf_event_open |
573 | * run_command |
574 | * main |
575 | * |
576 | * 10.00% 10.00% perf [kernel] [k] page_fault |
577 | * | |
578 | * --- page_fault |
579 | * sys_perf_event_open |
580 | * run_command |
581 | * main |
582 | * |
583 | * 10.00% 10.00% perf [kernel] [k] schedule |
584 | * | |
585 | * --- schedule |
586 | * run_command |
587 | * main |
588 | * |
589 | * 10.00% 10.00% perf libc [.] free |
590 | * | |
591 | * --- free |
592 | * cmd_record |
593 | * run_command |
594 | * main |
595 | * |
596 | * 10.00% 10.00% perf libc [.] malloc |
597 | * | |
598 | * --- malloc |
599 | * cmd_record |
600 | * run_command |
601 | * main |
602 | * |
603 | */ |
604 | struct result expected[] = { |
605 | { 7000, 2000, "perf" , "perf" , "main" }, |
606 | { 5000, 0, "perf" , "perf" , "run_command" }, |
607 | { 3000, 1000, "bash" , "bash" , "main" }, |
608 | { 3000, 1000, "perf" , "perf" , "cmd_record" }, |
609 | { 2000, 0, "bash" , "libc" , "malloc" }, |
610 | { 1000, 1000, "bash" , "[kernel]" , "page_fault" }, |
611 | { 1000, 1000, "bash" , "bash" , "xmalloc" }, |
612 | { 1000, 0, "perf" , "[kernel]" , "sys_perf_event_open" }, |
613 | { 1000, 1000, "perf" , "[kernel]" , "page_fault" }, |
614 | { 1000, 1000, "perf" , "[kernel]" , "schedule" }, |
615 | { 1000, 1000, "perf" , "libc" , "free" }, |
616 | { 1000, 1000, "perf" , "libc" , "malloc" }, |
617 | }; |
618 | struct callchain_result expected_callchain[] = { |
619 | { |
620 | 1, { { "perf" , "main" }, }, |
621 | }, |
622 | { |
623 | 2, { { "perf" , "run_command" }, |
624 | { "perf" , "main" }, }, |
625 | }, |
626 | { |
627 | 1, { { "bash" , "main" }, }, |
628 | }, |
629 | { |
630 | 3, { { "perf" , "cmd_record" }, |
631 | { "perf" , "run_command" }, |
632 | { "perf" , "main" }, }, |
633 | }, |
634 | { |
635 | 4, { { "libc" , "malloc" }, |
636 | { "bash" , "xmalloc" }, |
637 | { "bash" , "main" }, |
638 | { "bash" , "main" }, }, |
639 | }, |
640 | { |
641 | 3, { { "[kernel]" , "page_fault" }, |
642 | { "libc" , "malloc" }, |
643 | { "bash" , "main" }, }, |
644 | }, |
645 | { |
646 | 6, { { "bash" , "xmalloc" }, |
647 | { "libc" , "malloc" }, |
648 | { "bash" , "xmalloc" }, |
649 | { "libc" , "malloc" }, |
650 | { "bash" , "xmalloc" }, |
651 | { "bash" , "main" }, }, |
652 | }, |
653 | { |
654 | 3, { { "[kernel]" , "sys_perf_event_open" }, |
655 | { "perf" , "run_command" }, |
656 | { "perf" , "main" }, }, |
657 | }, |
658 | { |
659 | 4, { { "[kernel]" , "page_fault" }, |
660 | { "[kernel]" , "sys_perf_event_open" }, |
661 | { "perf" , "run_command" }, |
662 | { "perf" , "main" }, }, |
663 | }, |
664 | { |
665 | 3, { { "[kernel]" , "schedule" }, |
666 | { "perf" , "run_command" }, |
667 | { "perf" , "main" }, }, |
668 | }, |
669 | { |
670 | 4, { { "libc" , "free" }, |
671 | { "perf" , "cmd_record" }, |
672 | { "perf" , "run_command" }, |
673 | { "perf" , "main" }, }, |
674 | }, |
675 | { |
676 | 4, { { "libc" , "malloc" }, |
677 | { "perf" , "cmd_record" }, |
678 | { "perf" , "run_command" }, |
679 | { "perf" , "main" }, }, |
680 | }, |
681 | }; |
682 | |
683 | symbol_conf.use_callchain = true; |
684 | symbol_conf.cumulate_callchain = true; |
685 | evsel__set_sample_bit(evsel, CALLCHAIN); |
686 | |
687 | setup_sorting(NULL); |
688 | |
689 | callchain_param = callchain_param_default; |
690 | callchain_register_param(&callchain_param); |
691 | |
692 | err = add_hist_entries(hists, machine); |
693 | if (err < 0) |
694 | goto out; |
695 | |
696 | err = do_test(hists, expected, ARRAY_SIZE(expected), |
697 | expected_callchain, ARRAY_SIZE(expected_callchain)); |
698 | |
699 | out: |
700 | del_hist_entries(hists); |
701 | reset_output_field(); |
702 | return err; |
703 | } |
704 | |
705 | static int test__hists_cumulate(struct test_suite *test __maybe_unused, int subtest __maybe_unused) |
706 | { |
707 | int err = TEST_FAIL; |
708 | struct machines machines; |
709 | struct machine *machine; |
710 | struct evsel *evsel; |
711 | struct evlist *evlist = evlist__new(); |
712 | size_t i; |
713 | test_fn_t testcases[] = { |
714 | test1, |
715 | test2, |
716 | test3, |
717 | test4, |
718 | }; |
719 | |
720 | TEST_ASSERT_VAL("No memory" , evlist); |
721 | |
722 | err = parse_event(evlist, "cpu-clock" ); |
723 | if (err) |
724 | goto out; |
725 | err = TEST_FAIL; |
726 | |
727 | machines__init(&machines); |
728 | |
729 | /* setup threads/dso/map/symbols also */ |
730 | machine = setup_fake_machine(&machines); |
731 | if (!machine) |
732 | goto out; |
733 | |
734 | if (verbose > 1) |
735 | machine__fprintf(machine, stderr); |
736 | |
737 | evsel = evlist__first(evlist); |
738 | |
739 | for (i = 0; i < ARRAY_SIZE(testcases); i++) { |
740 | err = testcases[i](evsel, machine); |
741 | if (err < 0) |
742 | break; |
743 | } |
744 | |
745 | out: |
746 | /* tear down everything */ |
747 | evlist__delete(evlist); |
748 | machines__exit(&machines); |
749 | put_fake_samples(); |
750 | |
751 | return err; |
752 | } |
753 | |
754 | DEFINE_SUITE("Cumulate child hist entries" , hists_cumulate); |
755 | |