def _taskset_cmd(self, cmd, num_cpus):
""" modify cmd to be via taskset """
cpu_a = cpu_lib.CPUAllocator()
assert num_cpus
# use high numbered cpus
cpu_list = cpu_a.get_n_cpus(num_cpus, low=False)
new_cmd = "taskset -c {} {}".format(",".join(map(str, cpu_list)), cmd)
return new_cmd
def _get_single_numa_cpu_list(self):
cpu_a = cpu_lib.CPUAllocator()
# get the highest number numa node
numa_id = cpu_a.get_numa_ids()[-1]
numa_obj = cpu_a.get_numa_by_id(numa_id)
cpu_obj_list = numa_obj.get_cpu_list()
cpu_id_list = []
for cpu in cpu_obj_list:
if not cpu.is_free():
continue
cpu_id_list.append(cpu.get_cpu_id())
return cpu_id_list