summaryrefslogtreecommitdiffstats
path: root/tools/perf/tests/cpumap.c
blob: 7730fc2ab40b734274fe89b569def4f9909e0e31 (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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
// 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 <internal/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_cpu_map_data *data;
	struct perf_cpu_map *map;
	unsigned int long_size;

	data = &map_event->data;

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

	long_size = data->mask32_data.long_size;

	TEST_ASSERT_VAL("wrong long_size", long_size == 4 || long_size == 8);

	TEST_ASSERT_VAL("wrong nr",   data->mask32_data.nr == 1);

	TEST_ASSERT_VAL("wrong cpu", perf_record_cpu_map_data__test_bit(0, data));
	TEST_ASSERT_VAL("wrong cpu", !perf_record_cpu_map_data__test_bit(1, data));
	for (int i = 2; i <= 20; i++)
		TEST_ASSERT_VAL("wrong cpu", perf_record_cpu_map_data__test_bit(i, data));

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

	TEST_ASSERT_VAL("wrong cpu", perf_cpu_map__cpu(map, 0).cpu == 0);
	for (int i = 2; i <= 20; i++)
		TEST_ASSERT_VAL("wrong cpu", perf_cpu_map__cpu(map, i - 1).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 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);

	TEST_ASSERT_VAL("wrong nr",   data->cpus_data.nr == 2);
	TEST_ASSERT_VAL("wrong cpu",  data->cpus_data.cpu[0] == 1);
	TEST_ASSERT_VAL("wrong cpu",  data->cpus_data.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(perf_cpu_map__refcnt(map)) == 1);
	perf_cpu_map__put(map);
	return 0;
}

static int process_event_range_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 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__RANGE_CPUS);

	TEST_ASSERT_VAL("wrong any_cpu",   data->range_cpu_data.any_cpu == 0);
	TEST_ASSERT_VAL("wrong start_cpu", data->range_cpu_data.start_cpu == 1);
	TEST_ASSERT_VAL("wrong end_cpu",   data->range_cpu_data.end_cpu == 256);

	map = cpu_map__new_data(data);
	TEST_ASSERT_VAL("wrong nr",  perf_cpu_map__nr(map) == 256);
	TEST_ASSERT_VAL("wrong cpu", perf_cpu_map__cpu(map, 0).cpu == 1);
	TEST_ASSERT_VAL("wrong cpu", perf_cpu_map__max(map).cpu == 256);
	TEST_ASSERT_VAL("wrong refcnt", refcount_read(perf_cpu_map__refcnt(map)) == 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 stored in a mask. */
	cpus = perf_cpu_map__new("0,2-20");

	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 stored 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);

	/* This one is better stored as a range. */
	cpus = perf_cpu_map__new("1-256");

	TEST_ASSERT_VAL("failed to synthesize map",
		!perf_event__synthesize_cpu_map(NULL, cpus, process_event_range_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;
}

static int __test__cpu_map_intersect(const char *lhs, const char *rhs, int nr, const char *expected)
{
	struct perf_cpu_map *a = perf_cpu_map__new(lhs);
	struct perf_cpu_map *b = perf_cpu_map__new(rhs);
	struct perf_cpu_map *c = perf_cpu_map__intersect(a, b);
	char buf[100];

	TEST_ASSERT_EQUAL("failed to intersect map: bad nr", perf_cpu_map__nr(c), nr);
	cpu_map__snprint(c, buf, sizeof(buf));
	TEST_ASSERT_VAL("failed to intersect map: bad result", !strcmp(buf, expected));
	perf_cpu_map__put(a);
	perf_cpu_map__put(b);
	perf_cpu_map__put(c);
	return 0;
}

static int test__cpu_map_intersect(struct test_suite *test __maybe_unused,
				   int subtest __maybe_unused)
{
	int ret;

	ret = __test__cpu_map_intersect("4,2,1", "4,5,7", 1, "4");
	if (ret)
		return ret;
	ret = __test__cpu_map_intersect("1-8", "6-9", 3, "6-8");
	if (ret)
		return ret;
	ret = __test__cpu_map_intersect("1-8,12-20", "6-9,15", 4, "6-8,15");
	if (ret)
		return ret;
	ret = __test__cpu_map_intersect("4,2,1", "1", 1, "1");
	if (ret)
		return ret;
	ret = __test__cpu_map_intersect("1", "4,2,1", 1, "1");
	if (ret)
		return ret;
	ret = __test__cpu_map_intersect("1", "1", 1, "1");
	return ret;
}

static int test__cpu_map_equal(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
{
	struct perf_cpu_map *any = perf_cpu_map__dummy_new();
	struct perf_cpu_map *one = perf_cpu_map__new("1");
	struct perf_cpu_map *two = perf_cpu_map__new("2");
	struct perf_cpu_map *empty = perf_cpu_map__intersect(one, two);
	struct perf_cpu_map *pair = perf_cpu_map__new("1-2");
	struct perf_cpu_map *tmp;
	struct perf_cpu_map *maps[] = {empty, any, one, two, pair};

	for (size_t i = 0; i < ARRAY_SIZE(maps); i++) {
		/* Maps equal themself. */
		TEST_ASSERT_VAL("equal", perf_cpu_map__equal(maps[i], maps[i]));
		for (size_t j = 0; j < ARRAY_SIZE(maps); j++) {
			/* Maps dont't equal each other. */
			if (i == j)
				continue;
			TEST_ASSERT_VAL("not equal", !perf_cpu_map__equal(maps[i], maps[j]));
		}
	}

	/* Maps equal made maps. */
	tmp = perf_cpu_map__merge(perf_cpu_map__get(one), two);
	TEST_ASSERT_VAL("pair", perf_cpu_map__equal(pair, tmp));
	perf_cpu_map__put(tmp);

	tmp = perf_cpu_map__intersect(pair, one);
	TEST_ASSERT_VAL("one", perf_cpu_map__equal(one, tmp));
	perf_cpu_map__put(tmp);

	for (size_t i = 0; i < ARRAY_SIZE(maps); i++)
		perf_cpu_map__put(maps[i]);

	return TEST_OK;
}

static struct test_case tests__cpu_map[] = {
	TEST_CASE("Synthesize cpu map", cpu_map_synthesize),
	TEST_CASE("Print cpu map", cpu_map_print),
	TEST_CASE("Merge cpu map", cpu_map_merge),
	TEST_CASE("Intersect cpu map", cpu_map_intersect),
	TEST_CASE("Equal cpu map", cpu_map_equal),
	{	.name = NULL, }
};

struct test_suite suite__cpu_map = {
	.desc = "CPU map",
	.test_cases = tests__cpu_map,
};