1 # -*- coding:utf-8 -*-
2 '''
3 Created on Sep 10, 2018
4
5 @author: SaShuangYiBing
6 '''
7 import subprocess
8 import time
9
10 class CPU_usage(object):
11 """
12 CPU统计方法是参照：https://blog.csdn.net/xiaodanpeng/article/details/53503076
13
14 """
15 def __init__(self,t0):
16 self.time = t0
17
18 def read_cpu(self):
19 cpu_info0 = []
20 cpu_info1 = subprocess.check_output('adb shell cat /proc/stat').decode().split()[1:11]
21 for i in cpu_info1:
22 cpu_info0.append(int(i))
23 return cpu_info0
24
25 def get_idle(self):
26 cpu_idle = self.read_cpu()[3]
27 return cpu_idle
28
29 def cal_cpu(self):
30 t1_total = sum(self.read_cpu())
31 t1_idle = self.get_idle()
32 time.sleep(self.time)
33 t2_total = sum(self.read_cpu())
34 t2_idle = self.get_idle()
35 cpu_usage = (1 - (t2_idle - t1_idle)/(t2_total - t1_total))*100
36 if cpu_usage < 0:
37 return cpu_usage == 0
38 else:
39 return cpu_usage
40
41 if __name__ == "__main__":
42 cal_cpu = CPU_usage(1)
43 while True:
44 print (time.strftime('%Y-%m-%d %H:%M:%S') + " The CPU usage is %d" %cal_cpu.cal_cpu() + "%")
45
