python如何给内存和cpu使用量设置限制_python_

import signal import resource import os def time_exceeded(signo, frame):     print("time's up")     raise SystemExit(1) def set_max_runtime(seconds):     soft,hard = resource.getrlimit(resource.RLIMIT_CPU)     resource.setrlimit(resource.RLIMIT_CPU, (seconds, hard))     signal.signal(signal.SIGXCPU, time_exceeded) if __name__ == '__main__':     set_max_runtime(5)     while True:         pass

def limit_memory(maxsize):     soft, hard = resource.getrlimit(resource.RLIMIT_AS)     resource.setrlimit(resource.RLIMIT_AS, (maxsize, hard))

# -*- coding: UTF-8 -*- import os def get_info(metric):     metric_cmd_map = {         "cpu_usage_rate": "wmic cpu get loadpercentage",         "mem_total": "wmic ComputerSystem get TotalPhysicalMemory",         "mem_free": "wmic OS get FreePhysicalMemory"     }     out = os.popen("{}".format(metric_cmd_map.get(metric)))     value = out.read().split("\n")[2]     out.close()     return float(value) # cpu使用率 cpu_usage_rate = get_info('cpu_usage_rate') print("windows的CPU使用率是{}%".format(cpu_usage_rate)) # 无法直接查出内存使用率，总内存单位是b，而剩余内存单位是kb mem_total = get_info('mem_total')/1024 mem_free = get_info('mem_free') mem_usage_rate = (1 - mem_free/mem_total)*100 print("windows的内存使用率是{}%".format(mem_usage_rate))