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
|
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "tests.h"
#include "util.h"
#include "session.h"
#include "evlist.h"
#include "debug.h"
#define TEMPL "/tmp/perf-test-XXXXXX"
#define DATA_SIZE 10
static int get_temp(char *path)
{
int fd;
strcpy(path, TEMPL);
fd = mkstemp(path);
if (fd < 0) {
perror("mkstemp failed");
return -1;
}
close(fd);
return 0;
}
static int session_write_header(char *path)
{
struct perf_session *session;
struct perf_data_file file = {
.path = path,
.mode = PERF_DATA_MODE_WRITE,
};
session = perf_session__new(&file, false, NULL);
TEST_ASSERT_VAL("can't get session", session);
session->evlist = perf_evlist__new_default();
TEST_ASSERT_VAL("can't get evlist", session->evlist);
perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY);
perf_header__set_feat(&session->header, HEADER_NRCPUS);
session->header.data_size += DATA_SIZE;
TEST_ASSERT_VAL("failed to write header",
!perf_session__write_header(session, session->evlist, file.fd, true));
perf_session__delete(session);
return 0;
}
static int check_cpu_topology(char *path, struct cpu_map *map)
{
struct perf_session *session;
struct perf_data_file file = {
.path = path,
.mode = PERF_DATA_MODE_READ,
};
int i;
session = perf_session__new(&file, false, NULL);
TEST_ASSERT_VAL("can't get session", session);
for (i = 0; i < session->header.env.nr_cpus_avail; i++) {
if (!cpu_map__has(map, i))
continue;
pr_debug("CPU %d, core %d, socket %d\n", i,
session->header.env.cpu[i].core_id,
session->header.env.cpu[i].socket_id);
}
for (i = 0; i < map->nr; i++) {
TEST_ASSERT_VAL("Core ID doesn't match",
(session->header.env.cpu[map->map[i]].core_id == (cpu_map__get_core(map, i, NULL) & 0xffff)));
TEST_ASSERT_VAL("Socket ID doesn't match",
(session->header.env.cpu[map->map[i]].socket_id == cpu_map__get_socket(map, i, NULL)));
}
perf_session__delete(session);
return 0;
}
int test__session_topology(struct test *test __maybe_unused, int subtest __maybe_unused)
{
char path[PATH_MAX];
struct cpu_map *map;
int ret = -1;
TEST_ASSERT_VAL("can't get templ file", !get_temp(path));
pr_debug("templ file: %s\n", path);
if (session_write_header(path))
goto free_path;
map = cpu_map__new(NULL);
if (map == NULL) {
pr_debug("failed to get system cpumap\n");
goto free_path;
}
if (check_cpu_topology(path, map))
goto free_map;
ret = 0;
free_map:
cpu_map__put(map);
free_path:
unlink(path);
return ret;
}
|
