cpu__get_topology_int
int value, ret = cpu__get_topology_int(cpu.cpu, "physical_package_id", &value);
int value, ret = cpu__get_topology_int(cpu.cpu, "die_id", &value);
int value, ret = cpu__get_topology_int(cpu.cpu, "cluster_id", &value);
int value, ret = cpu__get_topology_int(cpu.cpu, "core_id", &value);