getcpuspeed.cpp

cpu_topology_node_info *topology;
system_info systemInfo;
uint32_t count = 1;

get_system_info(&systemInfo);
get_cpu_topology_info(NULL, &count);
topology = new cpu_topology_node_info[count];
get_cpu_topology_info(topology, count);
for (uint32 i = 0; i < count; i++) {
	if (topology[i].type == B_TOPOLOGY_CORE) {
		cpu_clock_speed = topology[i].data.core.default_frequency;
		break;
	}
}