233 lines
7.3 KiB
C
233 lines
7.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <perf/cpumap.h>
|
|
#include "cpumap.h"
|
|
#include "tests.h"
|
|
#include "session.h"
|
|
#include "evlist.h"
|
|
#include "debug.h"
|
|
#include "pmus.h"
|
|
#include <linux/err.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 data = {
|
|
.path = path,
|
|
.mode = PERF_DATA_MODE_WRITE,
|
|
};
|
|
|
|
session = perf_session__new(&data, NULL);
|
|
TEST_ASSERT_VAL("can't get session", !IS_ERR(session));
|
|
|
|
session->evlist = 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);
|
|
perf_header__set_feat(&session->header, HEADER_ARCH);
|
|
|
|
session->header.data_size += DATA_SIZE;
|
|
|
|
TEST_ASSERT_VAL("failed to write header",
|
|
!perf_session__write_header(session, session->evlist, data.file.fd, true));
|
|
|
|
evlist__delete(session->evlist);
|
|
perf_session__delete(session);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int check_cpu_topology(char *path, struct perf_cpu_map *map)
|
|
{
|
|
struct perf_session *session;
|
|
struct perf_data data = {
|
|
.path = path,
|
|
.mode = PERF_DATA_MODE_READ,
|
|
};
|
|
int i;
|
|
struct aggr_cpu_id id;
|
|
|
|
session = perf_session__new(&data, NULL);
|
|
TEST_ASSERT_VAL("can't get session", !IS_ERR(session));
|
|
cpu__setup_cpunode_map();
|
|
|
|
/* On platforms with large numbers of CPUs process_cpu_topology()
|
|
* might issue an error while reading the perf.data file section
|
|
* HEADER_CPU_TOPOLOGY and the cpu_topology_map pointed to by member
|
|
* cpu is a NULL pointer.
|
|
* Example: On s390
|
|
* CPU 0 is on core_id 0 and physical_package_id 6
|
|
* CPU 1 is on core_id 1 and physical_package_id 3
|
|
*
|
|
* Core_id and physical_package_id are platform and architecture
|
|
* dependent and might have higher numbers than the CPU id.
|
|
* This actually depends on the configuration.
|
|
*
|
|
* In this case process_cpu_topology() prints error message:
|
|
* "socket_id number is too big. You may need to upgrade the
|
|
* perf tool."
|
|
*
|
|
* This is the reason why this test might be skipped. aarch64 and
|
|
* s390 always write this part of the header, even when the above
|
|
* condition is true (see do_core_id_test in header.c). So always
|
|
* run this test on those platforms.
|
|
*/
|
|
if (!session->header.env.cpu
|
|
&& strncmp(session->header.env.arch, "s390", 4)
|
|
&& strncmp(session->header.env.arch, "aarch64", 7))
|
|
return TEST_SKIP;
|
|
|
|
/*
|
|
* In powerpc pSeries platform, not all the topology information
|
|
* are exposed via sysfs. Due to restriction, detail like
|
|
* physical_package_id will be set to -1. Hence skip this
|
|
* test if physical_package_id returns -1 for cpu from perf_cpu_map.
|
|
*/
|
|
if (!strncmp(session->header.env.arch, "ppc64le", 7)) {
|
|
if (cpu__get_socket_id(perf_cpu_map__cpu(map, 0)) == -1)
|
|
return TEST_SKIP;
|
|
}
|
|
|
|
TEST_ASSERT_VAL("Session header CPU map not set", session->header.env.cpu);
|
|
|
|
for (i = 0; i < session->header.env.nr_cpus_avail; i++) {
|
|
struct perf_cpu cpu = { .cpu = i };
|
|
|
|
if (!perf_cpu_map__has(map, cpu))
|
|
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);
|
|
}
|
|
|
|
// Test that CPU ID contains socket, die, core and CPU
|
|
for (i = 0; i < perf_cpu_map__nr(map); i++) {
|
|
id = aggr_cpu_id__cpu(perf_cpu_map__cpu(map, i), NULL);
|
|
TEST_ASSERT_VAL("Cpu map - CPU ID doesn't match",
|
|
perf_cpu_map__cpu(map, i).cpu == id.cpu.cpu);
|
|
|
|
TEST_ASSERT_VAL("Cpu map - Core ID doesn't match",
|
|
session->header.env.cpu[perf_cpu_map__cpu(map, i).cpu].core_id == id.core);
|
|
TEST_ASSERT_VAL("Cpu map - Socket ID doesn't match",
|
|
session->header.env.cpu[perf_cpu_map__cpu(map, i).cpu].socket_id ==
|
|
id.socket);
|
|
|
|
TEST_ASSERT_VAL("Cpu map - Die ID doesn't match",
|
|
session->header.env.cpu[perf_cpu_map__cpu(map, i).cpu].die_id == id.die);
|
|
TEST_ASSERT_VAL("Cpu map - Node ID is set", id.node == -1);
|
|
TEST_ASSERT_VAL("Cpu map - Thread IDX is set", id.thread_idx == -1);
|
|
}
|
|
|
|
// Test that core ID contains socket, die and core
|
|
for (i = 0; i < perf_cpu_map__nr(map); i++) {
|
|
id = aggr_cpu_id__core(perf_cpu_map__cpu(map, i), NULL);
|
|
TEST_ASSERT_VAL("Core map - Core ID doesn't match",
|
|
session->header.env.cpu[perf_cpu_map__cpu(map, i).cpu].core_id == id.core);
|
|
|
|
TEST_ASSERT_VAL("Core map - Socket ID doesn't match",
|
|
session->header.env.cpu[perf_cpu_map__cpu(map, i).cpu].socket_id ==
|
|
id.socket);
|
|
|
|
TEST_ASSERT_VAL("Core map - Die ID doesn't match",
|
|
session->header.env.cpu[perf_cpu_map__cpu(map, i).cpu].die_id == id.die);
|
|
TEST_ASSERT_VAL("Core map - Node ID is set", id.node == -1);
|
|
TEST_ASSERT_VAL("Core map - Thread IDX is set", id.thread_idx == -1);
|
|
}
|
|
|
|
// Test that die ID contains socket and die
|
|
for (i = 0; i < perf_cpu_map__nr(map); i++) {
|
|
id = aggr_cpu_id__die(perf_cpu_map__cpu(map, i), NULL);
|
|
TEST_ASSERT_VAL("Die map - Socket ID doesn't match",
|
|
session->header.env.cpu[perf_cpu_map__cpu(map, i).cpu].socket_id ==
|
|
id.socket);
|
|
|
|
TEST_ASSERT_VAL("Die map - Die ID doesn't match",
|
|
session->header.env.cpu[perf_cpu_map__cpu(map, i).cpu].die_id == id.die);
|
|
|
|
TEST_ASSERT_VAL("Die map - Node ID is set", id.node == -1);
|
|
TEST_ASSERT_VAL("Die map - Core is set", id.core == -1);
|
|
TEST_ASSERT_VAL("Die map - CPU is set", id.cpu.cpu == -1);
|
|
TEST_ASSERT_VAL("Die map - Thread IDX is set", id.thread_idx == -1);
|
|
}
|
|
|
|
// Test that socket ID contains only socket
|
|
for (i = 0; i < perf_cpu_map__nr(map); i++) {
|
|
id = aggr_cpu_id__socket(perf_cpu_map__cpu(map, i), NULL);
|
|
TEST_ASSERT_VAL("Socket map - Socket ID doesn't match",
|
|
session->header.env.cpu[perf_cpu_map__cpu(map, i).cpu].socket_id ==
|
|
id.socket);
|
|
|
|
TEST_ASSERT_VAL("Socket map - Node ID is set", id.node == -1);
|
|
TEST_ASSERT_VAL("Socket map - Die ID is set", id.die == -1);
|
|
TEST_ASSERT_VAL("Socket map - Core is set", id.core == -1);
|
|
TEST_ASSERT_VAL("Socket map - CPU is set", id.cpu.cpu == -1);
|
|
TEST_ASSERT_VAL("Socket map - Thread IDX is set", id.thread_idx == -1);
|
|
}
|
|
|
|
// Test that node ID contains only node
|
|
for (i = 0; i < perf_cpu_map__nr(map); i++) {
|
|
id = aggr_cpu_id__node(perf_cpu_map__cpu(map, i), NULL);
|
|
TEST_ASSERT_VAL("Node map - Node ID doesn't match",
|
|
cpu__get_node(perf_cpu_map__cpu(map, i)) == id.node);
|
|
TEST_ASSERT_VAL("Node map - Socket is set", id.socket == -1);
|
|
TEST_ASSERT_VAL("Node map - Die ID is set", id.die == -1);
|
|
TEST_ASSERT_VAL("Node map - Core is set", id.core == -1);
|
|
TEST_ASSERT_VAL("Node map - CPU is set", id.cpu.cpu == -1);
|
|
TEST_ASSERT_VAL("Node map - Thread IDX is set", id.thread_idx == -1);
|
|
}
|
|
perf_session__delete(session);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int test__session_topology(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
|
|
{
|
|
char path[PATH_MAX];
|
|
struct perf_cpu_map *map;
|
|
int ret = TEST_FAIL;
|
|
|
|
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 = perf_cpu_map__new(NULL);
|
|
if (map == NULL) {
|
|
pr_debug("failed to get system cpumap\n");
|
|
goto free_path;
|
|
}
|
|
|
|
ret = check_cpu_topology(path, map);
|
|
perf_cpu_map__put(map);
|
|
|
|
free_path:
|
|
unlink(path);
|
|
return ret;
|
|
}
|
|
|
|
DEFINE_SUITE("Session topology", session_topology);
|