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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/thread.h"
12#include "util/parse-events.h"
13#include "tests/tests.h"
14#include "tests/hists_common.h"
15#include <linux/kernel.h>
16
17struct sample {
18 u32 cpu;
19 u32 pid;
20 u64 ip;
21 struct thread *thread;
22 struct map *map;
23 struct symbol *sym;
24};
25
26/* For the numbers, see hists_common.c */
27static struct sample fake_samples[] = {
28 /* perf [kernel] schedule() */
29 { .cpu = 0, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, },
30 /* perf [perf] main() */
31 { .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, },
32 /* perf [perf] cmd_record() */
33 { .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_CMD_RECORD, },
34 /* perf [libc] malloc() */
35 { .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, },
36 /* perf [libc] free() */
37 { .cpu = 2, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_FREE, },
38 /* perf [perf] main() */
39 { .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, },
40 /* perf [kernel] page_fault() */
41 { .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
42 /* bash [bash] main() */
43 { .cpu = 3, .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, },
44 /* bash [bash] xmalloc() */
45 { .cpu = 0, .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, },
46 /* bash [kernel] page_fault() */
47 { .cpu = 1, .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
48};
49
50static int add_hist_entries(struct hists *hists, struct machine *machine)
51{
52 struct addr_location al;
53 struct evsel *evsel = hists_to_evsel(hists);
54 struct perf_sample sample = { .period = 100, };
55 size_t i;
56
57 addr_location__init(&al);
58 for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
59 struct hist_entry_iter iter = {
60 .evsel = evsel,
61 .sample = &sample,
62 .ops = &hist_iter_normal,
63 .hide_unresolved = false,
64 };
65
66 sample.cpumode = PERF_RECORD_MISC_USER;
67 sample.cpu = fake_samples[i].cpu;
68 sample.pid = fake_samples[i].pid;
69 sample.tid = fake_samples[i].pid;
70 sample.ip = fake_samples[i].ip;
71
72 if (machine__resolve(machine, &al, &sample) < 0)
73 goto out;
74
75 if (hist_entry_iter__add(&iter, &al, sysctl_perf_event_max_stack,
76 NULL) < 0) {
77 goto out;
78 }
79
80 fake_samples[i].thread = al.thread;
81 map__put(fake_samples[i].map);
82 fake_samples[i].map = map__get(al.map);
83 fake_samples[i].sym = al.sym;
84 }
85
86 addr_location__exit(&al);
87 return TEST_OK;
88
89out:
90 pr_debug("Not enough memory for adding a hist entry\n");
91 addr_location__exit(&al);
92 return TEST_FAIL;
93}
94
95static void del_hist_entries(struct hists *hists)
96{
97 struct hist_entry *he;
98 struct rb_root_cached *root_in;
99 struct rb_root_cached *root_out;
100 struct rb_node *node;
101
102 if (hists__has(hists, need_collapse))
103 root_in = &hists->entries_collapsed;
104 else
105 root_in = hists->entries_in;
106
107 root_out = &hists->entries;
108
109 while (!RB_EMPTY_ROOT(&root_out->rb_root)) {
110 node = rb_first_cached(root_out);
111
112 he = rb_entry(node, struct hist_entry, rb_node);
113 rb_erase_cached(node, root_out);
114 rb_erase_cached(&he->rb_node_in, root_in);
115 hist_entry__delete(he);
116 }
117}
118
119static void put_fake_samples(void)
120{
121 size_t i;
122
123 for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
124 map__put(fake_samples[i].map);
125 fake_samples[i].map = NULL;
126 }
127}
128
129typedef int (*test_fn_t)(struct evsel *, struct machine *);
130
131#define COMM(he) (thread__comm_str(he->thread))
132#define DSO(he) (map__dso(he->ms.map)->short_name)
133#define SYM(he) (he->ms.sym->name)
134#define CPU(he) (he->cpu)
135#define PID(he) (thread__tid(he->thread))
136
137/* default sort keys (no field) */
138static int test1(struct evsel *evsel, struct machine *machine)
139{
140 int err;
141 struct hists *hists = evsel__hists(evsel);
142 struct hist_entry *he;
143 struct rb_root_cached *root;
144 struct rb_node *node;
145
146 field_order = NULL;
147 sort_order = NULL; /* equivalent to sort_order = "comm,dso,sym" */
148
149 setup_sorting(NULL);
150
151 /*
152 * expected output:
153 *
154 * Overhead Command Shared Object Symbol
155 * ======== ======= ============= ==============
156 * 20.00% perf perf [.] main
157 * 10.00% bash [kernel] [k] page_fault
158 * 10.00% bash bash [.] main
159 * 10.00% bash bash [.] xmalloc
160 * 10.00% perf [kernel] [k] page_fault
161 * 10.00% perf [kernel] [k] schedule
162 * 10.00% perf libc [.] free
163 * 10.00% perf libc [.] malloc
164 * 10.00% perf perf [.] cmd_record
165 */
166 err = add_hist_entries(hists, machine);
167 if (err < 0)
168 goto out;
169
170 hists__collapse_resort(hists, NULL);
171 evsel__output_resort(evsel, NULL);
172
173 if (verbose > 2) {
174 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
175 print_hists_out(hists);
176 }
177
178 root = &hists->entries;
179 node = rb_first_cached(root);
180 he = rb_entry(node, struct hist_entry, rb_node);
181 TEST_ASSERT_VAL("Invalid hist entry",
182 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
183 !strcmp(SYM(he), "main") && he->stat.period == 200);
184
185 node = rb_next(node);
186 he = rb_entry(node, struct hist_entry, rb_node);
187 TEST_ASSERT_VAL("Invalid hist entry",
188 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
189 !strcmp(SYM(he), "page_fault") && he->stat.period == 100);
190
191 node = rb_next(node);
192 he = rb_entry(node, struct hist_entry, rb_node);
193 TEST_ASSERT_VAL("Invalid hist entry",
194 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
195 !strcmp(SYM(he), "main") && he->stat.period == 100);
196
197 node = rb_next(node);
198 he = rb_entry(node, struct hist_entry, rb_node);
199 TEST_ASSERT_VAL("Invalid hist entry",
200 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
201 !strcmp(SYM(he), "xmalloc") && he->stat.period == 100);
202
203 node = rb_next(node);
204 he = rb_entry(node, struct hist_entry, rb_node);
205 TEST_ASSERT_VAL("Invalid hist entry",
206 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
207 !strcmp(SYM(he), "page_fault") && he->stat.period == 100);
208
209 node = rb_next(node);
210 he = rb_entry(node, struct hist_entry, rb_node);
211 TEST_ASSERT_VAL("Invalid hist entry",
212 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
213 !strcmp(SYM(he), "schedule") && he->stat.period == 100);
214
215 node = rb_next(node);
216 he = rb_entry(node, struct hist_entry, rb_node);
217 TEST_ASSERT_VAL("Invalid hist entry",
218 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
219 !strcmp(SYM(he), "free") && he->stat.period == 100);
220
221 node = rb_next(node);
222 he = rb_entry(node, struct hist_entry, rb_node);
223 TEST_ASSERT_VAL("Invalid hist entry",
224 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
225 !strcmp(SYM(he), "malloc") && he->stat.period == 100);
226
227 node = rb_next(node);
228 he = rb_entry(node, struct hist_entry, rb_node);
229 TEST_ASSERT_VAL("Invalid hist entry",
230 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
231 !strcmp(SYM(he), "cmd_record") && he->stat.period == 100);
232
233out:
234 del_hist_entries(hists);
235 reset_output_field();
236 return err;
237}
238
239/* mixed fields and sort keys */
240static int test2(struct evsel *evsel, struct machine *machine)
241{
242 int err;
243 struct hists *hists = evsel__hists(evsel);
244 struct hist_entry *he;
245 struct rb_root_cached *root;
246 struct rb_node *node;
247
248 field_order = "overhead,cpu";
249 sort_order = "pid";
250
251 setup_sorting(NULL);
252
253 /*
254 * expected output:
255 *
256 * Overhead CPU Command: Pid
257 * ======== === =============
258 * 30.00% 1 perf : 100
259 * 10.00% 0 perf : 100
260 * 10.00% 2 perf : 100
261 * 20.00% 2 perf : 200
262 * 10.00% 0 bash : 300
263 * 10.00% 1 bash : 300
264 * 10.00% 3 bash : 300
265 */
266 err = add_hist_entries(hists, machine);
267 if (err < 0)
268 goto out;
269
270 hists__collapse_resort(hists, NULL);
271 evsel__output_resort(evsel, NULL);
272
273 if (verbose > 2) {
274 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
275 print_hists_out(hists);
276 }
277
278 root = &hists->entries;
279 node = rb_first_cached(root);
280 he = rb_entry(node, struct hist_entry, rb_node);
281 TEST_ASSERT_VAL("Invalid hist entry",
282 CPU(he) == 1 && PID(he) == 100 && he->stat.period == 300);
283
284 node = rb_next(node);
285 he = rb_entry(node, struct hist_entry, rb_node);
286 TEST_ASSERT_VAL("Invalid hist entry",
287 CPU(he) == 0 && PID(he) == 100 && he->stat.period == 100);
288
289out:
290 del_hist_entries(hists);
291 reset_output_field();
292 return err;
293}
294
295/* fields only (no sort key) */
296static int test3(struct evsel *evsel, struct machine *machine)
297{
298 int err;
299 struct hists *hists = evsel__hists(evsel);
300 struct hist_entry *he;
301 struct rb_root_cached *root;
302 struct rb_node *node;
303
304 field_order = "comm,overhead,dso";
305 sort_order = NULL;
306
307 setup_sorting(NULL);
308
309 /*
310 * expected output:
311 *
312 * Command Overhead Shared Object
313 * ======= ======== =============
314 * bash 20.00% bash
315 * bash 10.00% [kernel]
316 * perf 30.00% perf
317 * perf 20.00% [kernel]
318 * perf 20.00% libc
319 */
320 err = add_hist_entries(hists, machine);
321 if (err < 0)
322 goto out;
323
324 hists__collapse_resort(hists, NULL);
325 evsel__output_resort(evsel, NULL);
326
327 if (verbose > 2) {
328 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
329 print_hists_out(hists);
330 }
331
332 root = &hists->entries;
333 node = rb_first_cached(root);
334 he = rb_entry(node, struct hist_entry, rb_node);
335 TEST_ASSERT_VAL("Invalid hist entry",
336 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
337 he->stat.period == 200);
338
339 node = rb_next(node);
340 he = rb_entry(node, struct hist_entry, rb_node);
341 TEST_ASSERT_VAL("Invalid hist entry",
342 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
343 he->stat.period == 100);
344
345 node = rb_next(node);
346 he = rb_entry(node, struct hist_entry, rb_node);
347 TEST_ASSERT_VAL("Invalid hist entry",
348 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
349 he->stat.period == 300);
350
351 node = rb_next(node);
352 he = rb_entry(node, struct hist_entry, rb_node);
353 TEST_ASSERT_VAL("Invalid hist entry",
354 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
355 he->stat.period == 200);
356
357 node = rb_next(node);
358 he = rb_entry(node, struct hist_entry, rb_node);
359 TEST_ASSERT_VAL("Invalid hist entry",
360 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
361 he->stat.period == 200);
362
363out:
364 del_hist_entries(hists);
365 reset_output_field();
366 return err;
367}
368
369/* handle duplicate 'dso' field */
370static int test4(struct evsel *evsel, struct machine *machine)
371{
372 int err;
373 struct hists *hists = evsel__hists(evsel);
374 struct hist_entry *he;
375 struct rb_root_cached *root;
376 struct rb_node *node;
377
378 field_order = "dso,sym,comm,overhead,dso";
379 sort_order = "sym";
380
381 setup_sorting(NULL);
382
383 /*
384 * expected output:
385 *
386 * Shared Object Symbol Command Overhead
387 * ============= ============== ======= ========
388 * perf [.] cmd_record perf 10.00%
389 * libc [.] free perf 10.00%
390 * bash [.] main bash 10.00%
391 * perf [.] main perf 20.00%
392 * libc [.] malloc perf 10.00%
393 * [kernel] [k] page_fault bash 10.00%
394 * [kernel] [k] page_fault perf 10.00%
395 * [kernel] [k] schedule perf 10.00%
396 * bash [.] xmalloc bash 10.00%
397 */
398 err = add_hist_entries(hists, machine);
399 if (err < 0)
400 goto out;
401
402 hists__collapse_resort(hists, NULL);
403 evsel__output_resort(evsel, NULL);
404
405 if (verbose > 2) {
406 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
407 print_hists_out(hists);
408 }
409
410 root = &hists->entries;
411 node = rb_first_cached(root);
412 he = rb_entry(node, struct hist_entry, rb_node);
413 TEST_ASSERT_VAL("Invalid hist entry",
414 !strcmp(DSO(he), "perf") && !strcmp(SYM(he), "cmd_record") &&
415 !strcmp(COMM(he), "perf") && he->stat.period == 100);
416
417 node = rb_next(node);
418 he = rb_entry(node, struct hist_entry, rb_node);
419 TEST_ASSERT_VAL("Invalid hist entry",
420 !strcmp(DSO(he), "libc") && !strcmp(SYM(he), "free") &&
421 !strcmp(COMM(he), "perf") && he->stat.period == 100);
422
423 node = rb_next(node);
424 he = rb_entry(node, struct hist_entry, rb_node);
425 TEST_ASSERT_VAL("Invalid hist entry",
426 !strcmp(DSO(he), "bash") && !strcmp(SYM(he), "main") &&
427 !strcmp(COMM(he), "bash") && he->stat.period == 100);
428
429 node = rb_next(node);
430 he = rb_entry(node, struct hist_entry, rb_node);
431 TEST_ASSERT_VAL("Invalid hist entry",
432 !strcmp(DSO(he), "perf") && !strcmp(SYM(he), "main") &&
433 !strcmp(COMM(he), "perf") && he->stat.period == 200);
434
435 node = rb_next(node);
436 he = rb_entry(node, struct hist_entry, rb_node);
437 TEST_ASSERT_VAL("Invalid hist entry",
438 !strcmp(DSO(he), "libc") && !strcmp(SYM(he), "malloc") &&
439 !strcmp(COMM(he), "perf") && he->stat.period == 100);
440
441 node = rb_next(node);
442 he = rb_entry(node, struct hist_entry, rb_node);
443 TEST_ASSERT_VAL("Invalid hist entry",
444 !strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
445 !strcmp(COMM(he), "bash") && he->stat.period == 100);
446
447 node = rb_next(node);
448 he = rb_entry(node, struct hist_entry, rb_node);
449 TEST_ASSERT_VAL("Invalid hist entry",
450 !strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
451 !strcmp(COMM(he), "perf") && he->stat.period == 100);
452
453 node = rb_next(node);
454 he = rb_entry(node, struct hist_entry, rb_node);
455 TEST_ASSERT_VAL("Invalid hist entry",
456 !strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "schedule") &&
457 !strcmp(COMM(he), "perf") && he->stat.period == 100);
458
459 node = rb_next(node);
460 he = rb_entry(node, struct hist_entry, rb_node);
461 TEST_ASSERT_VAL("Invalid hist entry",
462 !strcmp(DSO(he), "bash") && !strcmp(SYM(he), "xmalloc") &&
463 !strcmp(COMM(he), "bash") && he->stat.period == 100);
464
465out:
466 del_hist_entries(hists);
467 reset_output_field();
468 return err;
469}
470
471/* full sort keys w/o overhead field */
472static int test5(struct evsel *evsel, struct machine *machine)
473{
474 int err;
475 struct hists *hists = evsel__hists(evsel);
476 struct hist_entry *he;
477 struct rb_root_cached *root;
478 struct rb_node *node;
479
480 field_order = "cpu,pid,comm,dso,sym";
481 sort_order = "dso,pid";
482
483 setup_sorting(NULL);
484
485 /*
486 * expected output:
487 *
488 * CPU Command: Pid Command Shared Object Symbol
489 * === ============= ======= ============= ==============
490 * 0 perf: 100 perf [kernel] [k] schedule
491 * 2 perf: 200 perf [kernel] [k] page_fault
492 * 1 bash: 300 bash [kernel] [k] page_fault
493 * 0 bash: 300 bash bash [.] xmalloc
494 * 3 bash: 300 bash bash [.] main
495 * 1 perf: 100 perf libc [.] malloc
496 * 2 perf: 100 perf libc [.] free
497 * 1 perf: 100 perf perf [.] cmd_record
498 * 1 perf: 100 perf perf [.] main
499 * 2 perf: 200 perf perf [.] main
500 */
501 err = add_hist_entries(hists, machine);
502 if (err < 0)
503 goto out;
504
505 hists__collapse_resort(hists, NULL);
506 evsel__output_resort(evsel, NULL);
507
508 if (verbose > 2) {
509 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
510 print_hists_out(hists);
511 }
512
513 root = &hists->entries;
514 node = rb_first_cached(root);
515 he = rb_entry(node, struct hist_entry, rb_node);
516
517 TEST_ASSERT_VAL("Invalid hist entry",
518 CPU(he) == 0 && PID(he) == 100 &&
519 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
520 !strcmp(SYM(he), "schedule") && he->stat.period == 100);
521
522 node = rb_next(node);
523 he = rb_entry(node, struct hist_entry, rb_node);
524 TEST_ASSERT_VAL("Invalid hist entry",
525 CPU(he) == 2 && PID(he) == 200 &&
526 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
527 !strcmp(SYM(he), "page_fault") && he->stat.period == 100);
528
529 node = rb_next(node);
530 he = rb_entry(node, struct hist_entry, rb_node);
531 TEST_ASSERT_VAL("Invalid hist entry",
532 CPU(he) == 1 && PID(he) == 300 &&
533 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
534 !strcmp(SYM(he), "page_fault") && he->stat.period == 100);
535
536 node = rb_next(node);
537 he = rb_entry(node, struct hist_entry, rb_node);
538 TEST_ASSERT_VAL("Invalid hist entry",
539 CPU(he) == 0 && PID(he) == 300 &&
540 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
541 !strcmp(SYM(he), "xmalloc") && he->stat.period == 100);
542
543 node = rb_next(node);
544 he = rb_entry(node, struct hist_entry, rb_node);
545 TEST_ASSERT_VAL("Invalid hist entry",
546 CPU(he) == 3 && PID(he) == 300 &&
547 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
548 !strcmp(SYM(he), "main") && he->stat.period == 100);
549
550 node = rb_next(node);
551 he = rb_entry(node, struct hist_entry, rb_node);
552 TEST_ASSERT_VAL("Invalid hist entry",
553 CPU(he) == 1 && PID(he) == 100 &&
554 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
555 !strcmp(SYM(he), "malloc") && he->stat.period == 100);
556
557 node = rb_next(node);
558 he = rb_entry(node, struct hist_entry, rb_node);
559 TEST_ASSERT_VAL("Invalid hist entry",
560 CPU(he) == 2 && PID(he) == 100 &&
561 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
562 !strcmp(SYM(he), "free") && he->stat.period == 100);
563
564 node = rb_next(node);
565 he = rb_entry(node, struct hist_entry, rb_node);
566 TEST_ASSERT_VAL("Invalid hist entry",
567 CPU(he) == 1 && PID(he) == 100 &&
568 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
569 !strcmp(SYM(he), "cmd_record") && he->stat.period == 100);
570
571 node = rb_next(node);
572 he = rb_entry(node, struct hist_entry, rb_node);
573 TEST_ASSERT_VAL("Invalid hist entry",
574 CPU(he) == 1 && PID(he) == 100 &&
575 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
576 !strcmp(SYM(he), "main") && he->stat.period == 100);
577
578 node = rb_next(node);
579 he = rb_entry(node, struct hist_entry, rb_node);
580 TEST_ASSERT_VAL("Invalid hist entry",
581 CPU(he) == 2 && PID(he) == 200 &&
582 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
583 !strcmp(SYM(he), "main") && he->stat.period == 100);
584
585out:
586 del_hist_entries(hists);
587 reset_output_field();
588 return err;
589}
590
591static int test__hists_output(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
592{
593 int err = TEST_FAIL;
594 struct machines machines;
595 struct machine *machine;
596 struct evsel *evsel;
597 struct evlist *evlist = evlist__new();
598 size_t i;
599 test_fn_t testcases[] = {
600 test1,
601 test2,
602 test3,
603 test4,
604 test5,
605 };
606
607 TEST_ASSERT_VAL("No memory", evlist);
608
609 err = parse_event(evlist, "cpu-clock");
610 if (err)
611 goto out;
612 err = TEST_FAIL;
613
614 machines__init(&machines);
615
616 /* setup threads/dso/map/symbols also */
617 machine = setup_fake_machine(&machines);
618 if (!machine)
619 goto out;
620
621 if (verbose > 1)
622 machine__fprintf(machine, stderr);
623
624 evsel = evlist__first(evlist);
625
626 for (i = 0; i < ARRAY_SIZE(testcases); i++) {
627 err = testcases[i](evsel, machine);
628 if (err < 0)
629 break;
630 }
631
632out:
633 /* tear down everything */
634 evlist__delete(evlist);
635 machines__exit(&machines);
636 put_fake_samples();
637
638 return err;
639}
640
641DEFINE_SUITE("Sort output of hist entries", hists_output);
1#include "perf.h"
2#include "util/debug.h"
3#include "util/symbol.h"
4#include "util/sort.h"
5#include "util/evsel.h"
6#include "util/evlist.h"
7#include "util/machine.h"
8#include "util/thread.h"
9#include "util/parse-events.h"
10#include "tests/tests.h"
11#include "tests/hists_common.h"
12
13struct sample {
14 u32 cpu;
15 u32 pid;
16 u64 ip;
17 struct thread *thread;
18 struct map *map;
19 struct symbol *sym;
20};
21
22/* For the numbers, see hists_common.c */
23static struct sample fake_samples[] = {
24 /* perf [kernel] schedule() */
25 { .cpu = 0, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, },
26 /* perf [perf] main() */
27 { .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, },
28 /* perf [perf] cmd_record() */
29 { .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_CMD_RECORD, },
30 /* perf [libc] malloc() */
31 { .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, },
32 /* perf [libc] free() */
33 { .cpu = 2, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_FREE, },
34 /* perf [perf] main() */
35 { .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, },
36 /* perf [kernel] page_fault() */
37 { .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
38 /* bash [bash] main() */
39 { .cpu = 3, .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, },
40 /* bash [bash] xmalloc() */
41 { .cpu = 0, .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, },
42 /* bash [kernel] page_fault() */
43 { .cpu = 1, .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
44};
45
46static int add_hist_entries(struct hists *hists, struct machine *machine)
47{
48 struct addr_location al;
49 struct perf_evsel *evsel = hists_to_evsel(hists);
50 struct perf_sample sample = { .period = 100, };
51 size_t i;
52
53 for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
54 struct hist_entry_iter iter = {
55 .evsel = evsel,
56 .sample = &sample,
57 .ops = &hist_iter_normal,
58 .hide_unresolved = false,
59 };
60
61 sample.cpumode = PERF_RECORD_MISC_USER;
62 sample.cpu = fake_samples[i].cpu;
63 sample.pid = fake_samples[i].pid;
64 sample.tid = fake_samples[i].pid;
65 sample.ip = fake_samples[i].ip;
66
67 if (machine__resolve(machine, &al, &sample) < 0)
68 goto out;
69
70 if (hist_entry_iter__add(&iter, &al, PERF_MAX_STACK_DEPTH,
71 NULL) < 0) {
72 addr_location__put(&al);
73 goto out;
74 }
75
76 fake_samples[i].thread = al.thread;
77 fake_samples[i].map = al.map;
78 fake_samples[i].sym = al.sym;
79 }
80
81 return TEST_OK;
82
83out:
84 pr_debug("Not enough memory for adding a hist entry\n");
85 return TEST_FAIL;
86}
87
88static void del_hist_entries(struct hists *hists)
89{
90 struct hist_entry *he;
91 struct rb_root *root_in;
92 struct rb_root *root_out;
93 struct rb_node *node;
94
95 if (sort__need_collapse)
96 root_in = &hists->entries_collapsed;
97 else
98 root_in = hists->entries_in;
99
100 root_out = &hists->entries;
101
102 while (!RB_EMPTY_ROOT(root_out)) {
103 node = rb_first(root_out);
104
105 he = rb_entry(node, struct hist_entry, rb_node);
106 rb_erase(node, root_out);
107 rb_erase(&he->rb_node_in, root_in);
108 hist_entry__delete(he);
109 }
110}
111
112typedef int (*test_fn_t)(struct perf_evsel *, struct machine *);
113
114#define COMM(he) (thread__comm_str(he->thread))
115#define DSO(he) (he->ms.map->dso->short_name)
116#define SYM(he) (he->ms.sym->name)
117#define CPU(he) (he->cpu)
118#define PID(he) (he->thread->tid)
119
120/* default sort keys (no field) */
121static int test1(struct perf_evsel *evsel, struct machine *machine)
122{
123 int err;
124 struct hists *hists = evsel__hists(evsel);
125 struct hist_entry *he;
126 struct rb_root *root;
127 struct rb_node *node;
128
129 field_order = NULL;
130 sort_order = NULL; /* equivalent to sort_order = "comm,dso,sym" */
131
132 setup_sorting(NULL);
133
134 /*
135 * expected output:
136 *
137 * Overhead Command Shared Object Symbol
138 * ======== ======= ============= ==============
139 * 20.00% perf perf [.] main
140 * 10.00% bash [kernel] [k] page_fault
141 * 10.00% bash bash [.] main
142 * 10.00% bash bash [.] xmalloc
143 * 10.00% perf [kernel] [k] page_fault
144 * 10.00% perf [kernel] [k] schedule
145 * 10.00% perf libc [.] free
146 * 10.00% perf libc [.] malloc
147 * 10.00% perf perf [.] cmd_record
148 */
149 err = add_hist_entries(hists, machine);
150 if (err < 0)
151 goto out;
152
153 hists__collapse_resort(hists, NULL);
154 perf_evsel__output_resort(evsel, NULL);
155
156 if (verbose > 2) {
157 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
158 print_hists_out(hists);
159 }
160
161 root = &hists->entries;
162 node = rb_first(root);
163 he = rb_entry(node, struct hist_entry, rb_node);
164 TEST_ASSERT_VAL("Invalid hist entry",
165 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
166 !strcmp(SYM(he), "main") && he->stat.period == 200);
167
168 node = rb_next(node);
169 he = rb_entry(node, struct hist_entry, rb_node);
170 TEST_ASSERT_VAL("Invalid hist entry",
171 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
172 !strcmp(SYM(he), "page_fault") && he->stat.period == 100);
173
174 node = rb_next(node);
175 he = rb_entry(node, struct hist_entry, rb_node);
176 TEST_ASSERT_VAL("Invalid hist entry",
177 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
178 !strcmp(SYM(he), "main") && he->stat.period == 100);
179
180 node = rb_next(node);
181 he = rb_entry(node, struct hist_entry, rb_node);
182 TEST_ASSERT_VAL("Invalid hist entry",
183 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
184 !strcmp(SYM(he), "xmalloc") && he->stat.period == 100);
185
186 node = rb_next(node);
187 he = rb_entry(node, struct hist_entry, rb_node);
188 TEST_ASSERT_VAL("Invalid hist entry",
189 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
190 !strcmp(SYM(he), "page_fault") && he->stat.period == 100);
191
192 node = rb_next(node);
193 he = rb_entry(node, struct hist_entry, rb_node);
194 TEST_ASSERT_VAL("Invalid hist entry",
195 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
196 !strcmp(SYM(he), "schedule") && he->stat.period == 100);
197
198 node = rb_next(node);
199 he = rb_entry(node, struct hist_entry, rb_node);
200 TEST_ASSERT_VAL("Invalid hist entry",
201 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
202 !strcmp(SYM(he), "free") && he->stat.period == 100);
203
204 node = rb_next(node);
205 he = rb_entry(node, struct hist_entry, rb_node);
206 TEST_ASSERT_VAL("Invalid hist entry",
207 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
208 !strcmp(SYM(he), "malloc") && he->stat.period == 100);
209
210 node = rb_next(node);
211 he = rb_entry(node, struct hist_entry, rb_node);
212 TEST_ASSERT_VAL("Invalid hist entry",
213 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
214 !strcmp(SYM(he), "cmd_record") && he->stat.period == 100);
215
216out:
217 del_hist_entries(hists);
218 reset_output_field();
219 return err;
220}
221
222/* mixed fields and sort keys */
223static int test2(struct perf_evsel *evsel, struct machine *machine)
224{
225 int err;
226 struct hists *hists = evsel__hists(evsel);
227 struct hist_entry *he;
228 struct rb_root *root;
229 struct rb_node *node;
230
231 field_order = "overhead,cpu";
232 sort_order = "pid";
233
234 setup_sorting(NULL);
235
236 /*
237 * expected output:
238 *
239 * Overhead CPU Command: Pid
240 * ======== === =============
241 * 30.00% 1 perf : 100
242 * 10.00% 0 perf : 100
243 * 10.00% 2 perf : 100
244 * 20.00% 2 perf : 200
245 * 10.00% 0 bash : 300
246 * 10.00% 1 bash : 300
247 * 10.00% 3 bash : 300
248 */
249 err = add_hist_entries(hists, machine);
250 if (err < 0)
251 goto out;
252
253 hists__collapse_resort(hists, NULL);
254 perf_evsel__output_resort(evsel, NULL);
255
256 if (verbose > 2) {
257 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
258 print_hists_out(hists);
259 }
260
261 root = &hists->entries;
262 node = rb_first(root);
263 he = rb_entry(node, struct hist_entry, rb_node);
264 TEST_ASSERT_VAL("Invalid hist entry",
265 CPU(he) == 1 && PID(he) == 100 && he->stat.period == 300);
266
267 node = rb_next(node);
268 he = rb_entry(node, struct hist_entry, rb_node);
269 TEST_ASSERT_VAL("Invalid hist entry",
270 CPU(he) == 0 && PID(he) == 100 && he->stat.period == 100);
271
272out:
273 del_hist_entries(hists);
274 reset_output_field();
275 return err;
276}
277
278/* fields only (no sort key) */
279static int test3(struct perf_evsel *evsel, struct machine *machine)
280{
281 int err;
282 struct hists *hists = evsel__hists(evsel);
283 struct hist_entry *he;
284 struct rb_root *root;
285 struct rb_node *node;
286
287 field_order = "comm,overhead,dso";
288 sort_order = NULL;
289
290 setup_sorting(NULL);
291
292 /*
293 * expected output:
294 *
295 * Command Overhead Shared Object
296 * ======= ======== =============
297 * bash 20.00% bash
298 * bash 10.00% [kernel]
299 * perf 30.00% perf
300 * perf 20.00% [kernel]
301 * perf 20.00% libc
302 */
303 err = add_hist_entries(hists, machine);
304 if (err < 0)
305 goto out;
306
307 hists__collapse_resort(hists, NULL);
308 perf_evsel__output_resort(evsel, NULL);
309
310 if (verbose > 2) {
311 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
312 print_hists_out(hists);
313 }
314
315 root = &hists->entries;
316 node = rb_first(root);
317 he = rb_entry(node, struct hist_entry, rb_node);
318 TEST_ASSERT_VAL("Invalid hist entry",
319 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
320 he->stat.period == 200);
321
322 node = rb_next(node);
323 he = rb_entry(node, struct hist_entry, rb_node);
324 TEST_ASSERT_VAL("Invalid hist entry",
325 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
326 he->stat.period == 100);
327
328 node = rb_next(node);
329 he = rb_entry(node, struct hist_entry, rb_node);
330 TEST_ASSERT_VAL("Invalid hist entry",
331 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
332 he->stat.period == 300);
333
334 node = rb_next(node);
335 he = rb_entry(node, struct hist_entry, rb_node);
336 TEST_ASSERT_VAL("Invalid hist entry",
337 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
338 he->stat.period == 200);
339
340 node = rb_next(node);
341 he = rb_entry(node, struct hist_entry, rb_node);
342 TEST_ASSERT_VAL("Invalid hist entry",
343 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
344 he->stat.period == 200);
345
346out:
347 del_hist_entries(hists);
348 reset_output_field();
349 return err;
350}
351
352/* handle duplicate 'dso' field */
353static int test4(struct perf_evsel *evsel, struct machine *machine)
354{
355 int err;
356 struct hists *hists = evsel__hists(evsel);
357 struct hist_entry *he;
358 struct rb_root *root;
359 struct rb_node *node;
360
361 field_order = "dso,sym,comm,overhead,dso";
362 sort_order = "sym";
363
364 setup_sorting(NULL);
365
366 /*
367 * expected output:
368 *
369 * Shared Object Symbol Command Overhead
370 * ============= ============== ======= ========
371 * perf [.] cmd_record perf 10.00%
372 * libc [.] free perf 10.00%
373 * bash [.] main bash 10.00%
374 * perf [.] main perf 20.00%
375 * libc [.] malloc perf 10.00%
376 * [kernel] [k] page_fault bash 10.00%
377 * [kernel] [k] page_fault perf 10.00%
378 * [kernel] [k] schedule perf 10.00%
379 * bash [.] xmalloc bash 10.00%
380 */
381 err = add_hist_entries(hists, machine);
382 if (err < 0)
383 goto out;
384
385 hists__collapse_resort(hists, NULL);
386 perf_evsel__output_resort(evsel, NULL);
387
388 if (verbose > 2) {
389 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
390 print_hists_out(hists);
391 }
392
393 root = &hists->entries;
394 node = rb_first(root);
395 he = rb_entry(node, struct hist_entry, rb_node);
396 TEST_ASSERT_VAL("Invalid hist entry",
397 !strcmp(DSO(he), "perf") && !strcmp(SYM(he), "cmd_record") &&
398 !strcmp(COMM(he), "perf") && he->stat.period == 100);
399
400 node = rb_next(node);
401 he = rb_entry(node, struct hist_entry, rb_node);
402 TEST_ASSERT_VAL("Invalid hist entry",
403 !strcmp(DSO(he), "libc") && !strcmp(SYM(he), "free") &&
404 !strcmp(COMM(he), "perf") && he->stat.period == 100);
405
406 node = rb_next(node);
407 he = rb_entry(node, struct hist_entry, rb_node);
408 TEST_ASSERT_VAL("Invalid hist entry",
409 !strcmp(DSO(he), "bash") && !strcmp(SYM(he), "main") &&
410 !strcmp(COMM(he), "bash") && he->stat.period == 100);
411
412 node = rb_next(node);
413 he = rb_entry(node, struct hist_entry, rb_node);
414 TEST_ASSERT_VAL("Invalid hist entry",
415 !strcmp(DSO(he), "perf") && !strcmp(SYM(he), "main") &&
416 !strcmp(COMM(he), "perf") && he->stat.period == 200);
417
418 node = rb_next(node);
419 he = rb_entry(node, struct hist_entry, rb_node);
420 TEST_ASSERT_VAL("Invalid hist entry",
421 !strcmp(DSO(he), "libc") && !strcmp(SYM(he), "malloc") &&
422 !strcmp(COMM(he), "perf") && he->stat.period == 100);
423
424 node = rb_next(node);
425 he = rb_entry(node, struct hist_entry, rb_node);
426 TEST_ASSERT_VAL("Invalid hist entry",
427 !strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
428 !strcmp(COMM(he), "bash") && he->stat.period == 100);
429
430 node = rb_next(node);
431 he = rb_entry(node, struct hist_entry, rb_node);
432 TEST_ASSERT_VAL("Invalid hist entry",
433 !strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
434 !strcmp(COMM(he), "perf") && he->stat.period == 100);
435
436 node = rb_next(node);
437 he = rb_entry(node, struct hist_entry, rb_node);
438 TEST_ASSERT_VAL("Invalid hist entry",
439 !strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "schedule") &&
440 !strcmp(COMM(he), "perf") && he->stat.period == 100);
441
442 node = rb_next(node);
443 he = rb_entry(node, struct hist_entry, rb_node);
444 TEST_ASSERT_VAL("Invalid hist entry",
445 !strcmp(DSO(he), "bash") && !strcmp(SYM(he), "xmalloc") &&
446 !strcmp(COMM(he), "bash") && he->stat.period == 100);
447
448out:
449 del_hist_entries(hists);
450 reset_output_field();
451 return err;
452}
453
454/* full sort keys w/o overhead field */
455static int test5(struct perf_evsel *evsel, struct machine *machine)
456{
457 int err;
458 struct hists *hists = evsel__hists(evsel);
459 struct hist_entry *he;
460 struct rb_root *root;
461 struct rb_node *node;
462
463 field_order = "cpu,pid,comm,dso,sym";
464 sort_order = "dso,pid";
465
466 setup_sorting(NULL);
467
468 /*
469 * expected output:
470 *
471 * CPU Command: Pid Command Shared Object Symbol
472 * === ============= ======= ============= ==============
473 * 0 perf: 100 perf [kernel] [k] schedule
474 * 2 perf: 200 perf [kernel] [k] page_fault
475 * 1 bash: 300 bash [kernel] [k] page_fault
476 * 0 bash: 300 bash bash [.] xmalloc
477 * 3 bash: 300 bash bash [.] main
478 * 1 perf: 100 perf libc [.] malloc
479 * 2 perf: 100 perf libc [.] free
480 * 1 perf: 100 perf perf [.] cmd_record
481 * 1 perf: 100 perf perf [.] main
482 * 2 perf: 200 perf perf [.] main
483 */
484 err = add_hist_entries(hists, machine);
485 if (err < 0)
486 goto out;
487
488 hists__collapse_resort(hists, NULL);
489 perf_evsel__output_resort(evsel, NULL);
490
491 if (verbose > 2) {
492 pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
493 print_hists_out(hists);
494 }
495
496 root = &hists->entries;
497 node = rb_first(root);
498 he = rb_entry(node, struct hist_entry, rb_node);
499
500 TEST_ASSERT_VAL("Invalid hist entry",
501 CPU(he) == 0 && PID(he) == 100 &&
502 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
503 !strcmp(SYM(he), "schedule") && he->stat.period == 100);
504
505 node = rb_next(node);
506 he = rb_entry(node, struct hist_entry, rb_node);
507 TEST_ASSERT_VAL("Invalid hist entry",
508 CPU(he) == 2 && PID(he) == 200 &&
509 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
510 !strcmp(SYM(he), "page_fault") && he->stat.period == 100);
511
512 node = rb_next(node);
513 he = rb_entry(node, struct hist_entry, rb_node);
514 TEST_ASSERT_VAL("Invalid hist entry",
515 CPU(he) == 1 && PID(he) == 300 &&
516 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
517 !strcmp(SYM(he), "page_fault") && he->stat.period == 100);
518
519 node = rb_next(node);
520 he = rb_entry(node, struct hist_entry, rb_node);
521 TEST_ASSERT_VAL("Invalid hist entry",
522 CPU(he) == 0 && PID(he) == 300 &&
523 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
524 !strcmp(SYM(he), "xmalloc") && he->stat.period == 100);
525
526 node = rb_next(node);
527 he = rb_entry(node, struct hist_entry, rb_node);
528 TEST_ASSERT_VAL("Invalid hist entry",
529 CPU(he) == 3 && PID(he) == 300 &&
530 !strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
531 !strcmp(SYM(he), "main") && he->stat.period == 100);
532
533 node = rb_next(node);
534 he = rb_entry(node, struct hist_entry, rb_node);
535 TEST_ASSERT_VAL("Invalid hist entry",
536 CPU(he) == 1 && PID(he) == 100 &&
537 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
538 !strcmp(SYM(he), "malloc") && he->stat.period == 100);
539
540 node = rb_next(node);
541 he = rb_entry(node, struct hist_entry, rb_node);
542 TEST_ASSERT_VAL("Invalid hist entry",
543 CPU(he) == 2 && PID(he) == 100 &&
544 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
545 !strcmp(SYM(he), "free") && he->stat.period == 100);
546
547 node = rb_next(node);
548 he = rb_entry(node, struct hist_entry, rb_node);
549 TEST_ASSERT_VAL("Invalid hist entry",
550 CPU(he) == 1 && PID(he) == 100 &&
551 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
552 !strcmp(SYM(he), "cmd_record") && he->stat.period == 100);
553
554 node = rb_next(node);
555 he = rb_entry(node, struct hist_entry, rb_node);
556 TEST_ASSERT_VAL("Invalid hist entry",
557 CPU(he) == 1 && PID(he) == 100 &&
558 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
559 !strcmp(SYM(he), "main") && he->stat.period == 100);
560
561 node = rb_next(node);
562 he = rb_entry(node, struct hist_entry, rb_node);
563 TEST_ASSERT_VAL("Invalid hist entry",
564 CPU(he) == 2 && PID(he) == 200 &&
565 !strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
566 !strcmp(SYM(he), "main") && he->stat.period == 100);
567
568out:
569 del_hist_entries(hists);
570 reset_output_field();
571 return err;
572}
573
574int test__hists_output(int subtest __maybe_unused)
575{
576 int err = TEST_FAIL;
577 struct machines machines;
578 struct machine *machine;
579 struct perf_evsel *evsel;
580 struct perf_evlist *evlist = perf_evlist__new();
581 size_t i;
582 test_fn_t testcases[] = {
583 test1,
584 test2,
585 test3,
586 test4,
587 test5,
588 };
589
590 TEST_ASSERT_VAL("No memory", evlist);
591
592 err = parse_events(evlist, "cpu-clock", NULL);
593 if (err)
594 goto out;
595 err = TEST_FAIL;
596
597 machines__init(&machines);
598
599 /* setup threads/dso/map/symbols also */
600 machine = setup_fake_machine(&machines);
601 if (!machine)
602 goto out;
603
604 if (verbose > 1)
605 machine__fprintf(machine, stderr);
606
607 evsel = perf_evlist__first(evlist);
608
609 for (i = 0; i < ARRAY_SIZE(testcases); i++) {
610 err = testcases[i](evsel, machine);
611 if (err < 0)
612 break;
613 }
614
615out:
616 /* tear down everything */
617 perf_evlist__delete(evlist);
618 machines__exit(&machines);
619
620 return err;
621}