]>
git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - tools/perf/tests/topology.c
1 // SPDX-License-Identifier: GPL-2.0
11 #define TEMPL "/tmp/perf-test-XXXXXX"
14 static int get_temp(char *path
)
22 perror("mkstemp failed");
30 static int session_write_header(char *path
)
32 struct perf_session
*session
;
33 struct perf_data_file file
= {
35 .mode
= PERF_DATA_MODE_WRITE
,
38 session
= perf_session__new(&file
, false, NULL
);
39 TEST_ASSERT_VAL("can't get session", session
);
41 session
->evlist
= perf_evlist__new_default();
42 TEST_ASSERT_VAL("can't get evlist", session
->evlist
);
44 perf_header__set_feat(&session
->header
, HEADER_CPU_TOPOLOGY
);
45 perf_header__set_feat(&session
->header
, HEADER_NRCPUS
);
47 session
->header
.data_size
+= DATA_SIZE
;
49 TEST_ASSERT_VAL("failed to write header",
50 !perf_session__write_header(session
, session
->evlist
, file
.fd
, true));
52 perf_session__delete(session
);
57 static int check_cpu_topology(char *path
, struct cpu_map
*map
)
59 struct perf_session
*session
;
60 struct perf_data_file file
= {
62 .mode
= PERF_DATA_MODE_READ
,
66 session
= perf_session__new(&file
, false, NULL
);
67 TEST_ASSERT_VAL("can't get session", session
);
69 for (i
= 0; i
< session
->header
.env
.nr_cpus_avail
; i
++) {
70 if (!cpu_map__has(map
, i
))
72 pr_debug("CPU %d, core %d, socket %d\n", i
,
73 session
->header
.env
.cpu
[i
].core_id
,
74 session
->header
.env
.cpu
[i
].socket_id
);
77 for (i
= 0; i
< map
->nr
; i
++) {
78 TEST_ASSERT_VAL("Core ID doesn't match",
79 (session
->header
.env
.cpu
[map
->map
[i
]].core_id
== (cpu_map__get_core(map
, i
, NULL
) & 0xffff)));
81 TEST_ASSERT_VAL("Socket ID doesn't match",
82 (session
->header
.env
.cpu
[map
->map
[i
]].socket_id
== cpu_map__get_socket(map
, i
, NULL
)));
85 perf_session__delete(session
);
90 int test__session_topology(struct test
*test __maybe_unused
, int subtest __maybe_unused
)
96 TEST_ASSERT_VAL("can't get templ file", !get_temp(path
));
98 pr_debug("templ file: %s\n", path
);
100 if (session_write_header(path
))
103 map
= cpu_map__new(NULL
);
105 pr_debug("failed to get system cpumap\n");
109 if (check_cpu_topology(path
, map
))