summaryrefslogtreecommitdiff
path: root/tools/perf/tests/cpumap.c
blob: f94929ebb54bdf5c16a0ecf1c60ba7d4d59aca47 (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
136
137
138
139
140
141
142
143
// SPDX-License-Identifier: GPL-2.0
#include "tests.h"
#include <stdio.h>
#include "cpumap.h"
#include "event.h"
#include "util/synthetic-events.h"
#include <string.h>
#include <linux/bitops.h>
#include <perf/cpumap.h>
#include "debug.h"

struct machine;

static int process_event_mask(struct perf_tool *tool __maybe_unused,
			 union perf_event *event,
			 struct perf_sample *sample __maybe_unused,
			 struct machine *machine __maybe_unused)
{
	struct perf_record_cpu_map *map_event = &event->cpu_map;
	struct perf_record_record_cpu_map *mask;
	struct perf_record_cpu_map_data *data;
	struct perf_cpu_map *map;
	int i;

	data = &map_event->data;

	TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__MASK);

	mask = (struct perf_record_record_cpu_map *)data->data;

	TEST_ASSERT_VAL("wrong nr",   mask->nr == 1);

	for (i = 0; i < 20; i++) {
		TEST_ASSERT_VAL("wrong cpu", test_bit(i, mask->mask));
	}

	map = cpu_map__new_data(data);
	TEST_ASSERT_VAL("wrong nr",  perf_cpu_map__nr(map) == 20);

	for (i = 0; i < 20; i++) {
		TEST_ASSERT_VAL("wrong cpu", perf_cpu_map__cpu(map, i).cpu == i);
	}

	perf_cpu_map__put(map);
	return 0;
}

static int process_event_cpus(struct perf_tool *tool __maybe_unused,
			 union perf_event *event,
			 struct perf_sample *sample __maybe_unused,
			 struct machine *machine __maybe_unused)
{
	struct perf_record_cpu_map *map_event = &event->cpu_map;
	struct cpu_map_entries *cpus;
	struct perf_record_cpu_map_data *data;
	struct perf_cpu_map *map;

	data = &map_event->data;

	TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__CPUS);

	cpus = (struct cpu_map_entries *)data->data;

	TEST_ASSERT_VAL("wrong nr",   cpus->nr == 2);
	TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[0] == 1);
	TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[1] == 256);

	map = cpu_map__new_data(data);
	TEST_ASSERT_VAL("wrong nr",  perf_cpu_map__nr(map) == 2);
	TEST_ASSERT_VAL("wrong cpu", perf_cpu_map__cpu(map, 0).cpu == 1);
	TEST_ASSERT_VAL("wrong cpu", perf_cpu_map__cpu(map, 1).cpu == 256);
	TEST_ASSERT_VAL("wrong refcnt", refcount_read(&map->refcnt) == 1);
	perf_cpu_map__put(map);
	return 0;
}


static int test__cpu_map_synthesize(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
{
	struct perf_cpu_map *cpus;

	/* This one is better stores in mask. */
	cpus = perf_cpu_map__new("0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19");

	TEST_ASSERT_VAL("failed to synthesize map",
		!perf_event__synthesize_cpu_map(NULL, cpus, process_event_mask, NULL));

	perf_cpu_map__put(cpus);

	/* This one is better stores in cpu values. */
	cpus = perf_cpu_map__new("1,256");

	TEST_ASSERT_VAL("failed to synthesize map",
		!perf_event__synthesize_cpu_map(NULL, cpus, process_event_cpus, NULL));

	perf_cpu_map__put(cpus);
	return 0;
}

static int cpu_map_print(const char *str)
{
	struct perf_cpu_map *map = perf_cpu_map__new(str);
	char buf[100];

	if (!map)
		return -1;

	cpu_map__snprint(map, buf, sizeof(buf));
	perf_cpu_map__put(map);

	return !strcmp(buf, str);
}

static int test__cpu_map_print(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
{
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1"));
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,5"));
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,3,5,7,9,11,13,15,17,19,21-40"));
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("2-5"));
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,3-6,8-10,24,35-37"));
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,3-6,8-10,24,35-37"));
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1-10,12-20,22-30,32-40"));
	return 0;
}

static int test__cpu_map_merge(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
{
	struct perf_cpu_map *a = perf_cpu_map__new("4,2,1");
	struct perf_cpu_map *b = perf_cpu_map__new("4,5,7");
	struct perf_cpu_map *c = perf_cpu_map__merge(a, b);
	char buf[100];

	TEST_ASSERT_VAL("failed to merge map: bad nr", perf_cpu_map__nr(c) == 5);
	cpu_map__snprint(c, buf, sizeof(buf));
	TEST_ASSERT_VAL("failed to merge map: bad result", !strcmp(buf, "1-2,4-5,7"));
	perf_cpu_map__put(b);
	perf_cpu_map__put(c);
	return 0;
}

DEFINE_SUITE("Synthesize cpu map", cpu_map_synthesize);
DEFINE_SUITE("Print cpu map", cpu_map_print);
DEFINE_SUITE("Merge cpu map", cpu_map_merge);