summaryrefslogtreecommitdiff
path: root/tools/lib/perf/tests/test-evsel.c
blob: 0ad82d7a2a51b690e57d2d28f16531fe7df40609 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
// SPDX-License-Identifier: GPL-2.0
#include <stdarg.h>
#include <stdio.h>
#include <linux/perf_event.h>
#include <perf/cpumap.h>
#include <perf/threadmap.h>
#include <perf/evsel.h>
#include <internal/tests.h>

static int libperf_print(enum libperf_print_level level,
			 const char *fmt, va_list ap)
{
	return vfprintf(stderr, fmt, ap);
}

static int test_stat_cpu(void)
{
	struct perf_cpu_map *cpus;
	struct perf_evsel *evsel;
	struct perf_event_attr attr = {
		.type	= PERF_TYPE_SOFTWARE,
		.config	= PERF_COUNT_SW_CPU_CLOCK,
	};
	int err, cpu, tmp;

	cpus = perf_cpu_map__new(NULL);
	__T("failed to create cpus", cpus);

	evsel = perf_evsel__new(&attr);
	__T("failed to create evsel", evsel);

	err = perf_evsel__open(evsel, cpus, NULL);
	__T("failed to open evsel", err == 0);

	perf_cpu_map__for_each_cpu(cpu, tmp, cpus) {
		struct perf_counts_values counts = { .val = 0 };

		perf_evsel__read(evsel, cpu, 0, &counts);
		__T("failed to read value for evsel", counts.val != 0);
	}

	perf_evsel__close(evsel);
	perf_evsel__delete(evsel);

	perf_cpu_map__put(cpus);
	return 0;
}

static int test_stat_thread(void)
{
	struct perf_counts_values counts = { .val = 0 };
	struct perf_thread_map *threads;
	struct perf_evsel *evsel;
	struct perf_event_attr attr = {
		.type	= PERF_TYPE_SOFTWARE,
		.config	= PERF_COUNT_SW_TASK_CLOCK,
	};
	int err;

	threads = perf_thread_map__new_dummy();
	__T("failed to create threads", threads);

	perf_thread_map__set_pid(threads, 0, 0);

	evsel = perf_evsel__new(&attr);
	__T("failed to create evsel", evsel);

	err = perf_evsel__open(evsel, NULL, threads);
	__T("failed to open evsel", err == 0);

	perf_evsel__read(evsel, 0, 0, &counts);
	__T("failed to read value for evsel", counts.val != 0);

	perf_evsel__close(evsel);
	perf_evsel__delete(evsel);

	perf_thread_map__put(threads);
	return 0;
}

static int test_stat_thread_enable(void)
{
	struct perf_counts_values counts = { .val = 0 };
	struct perf_thread_map *threads;
	struct perf_evsel *evsel;
	struct perf_event_attr attr = {
		.type	  = PERF_TYPE_SOFTWARE,
		.config	  = PERF_COUNT_SW_TASK_CLOCK,
		.disabled = 1,
	};
	int err;

	threads = perf_thread_map__new_dummy();
	__T("failed to create threads", threads);

	perf_thread_map__set_pid(threads, 0, 0);

	evsel = perf_evsel__new(&attr);
	__T("failed to create evsel", evsel);

	err = perf_evsel__open(evsel, NULL, threads);
	__T("failed to open evsel", err == 0);

	perf_evsel__read(evsel, 0, 0, &counts);
	__T("failed to read value for evsel", counts.val == 0);

	err = perf_evsel__enable(evsel);
	__T("failed to enable evsel", err == 0);

	perf_evsel__read(evsel, 0, 0, &counts);
	__T("failed to read value for evsel", counts.val != 0);

	err = perf_evsel__disable(evsel);
	__T("failed to enable evsel", err == 0);

	perf_evsel__close(evsel);
	perf_evsel__delete(evsel);

	perf_thread_map__put(threads);
	return 0;
}

int main(int argc, char **argv)
{
	__T_START;

	libperf_init(libperf_print);

	test_stat_cpu();
	test_stat_thread();
	test_stat_thread_enable();

	__T_END;
	return tests_failed == 0 ? 0 : -1;
}