python监控进程内存

监控脚本 #-*-coding:utf-8-*-import subprocess#获取进程pid对应的VmRss: 应用程序正在使用的物理内存的大小def getProcessMen(pid):

 监控脚本

#-*-coding:utf-8-*-import subprocess#获取进程pid对应的VmRss: 应用程序正在使用的物理内存的大小def getProcessMen(pid):    cmd ="cat /proc/"+pid+"/status|grep VmRSS"    p=subprocess.Popen(cmd,stdout=subprocess.PIPE,stderr=subprocess.PIPE,shell=True)    data = p.communicate()[0] # ，'')由于元组最后一个为空，则去掉这个    return data.split(':')[1].split()[0] #获取进程pid 并计算进程所占内存def getMem(app):    app_mem=0    cmd="ps aux| grep -v grep| grep %s " % app    p=subprocess.Popen(cmd,stdout=subprocess.PIPE,stderr=subprocess.PIPE,shell=True)    data =p.communicate()[0].split('/n')[:-1]    for i in data :        prcessoPid = i.split()[1]        app_mem += int(getProcessMen(prcessoPid))    print(app+"所占内存:"+str(app_mem)+"kB")def getTotalMen():    cmd="cat /proc/meminfo | grep MemTotal"    p=subprocess.Popen(cmd,stdout=subprocess.PIPE,stderr=subprocess.PIPE,shell=True)    data =p.communicate()[0]    total = data.split(":")[1]    print("总的内存大小"+str(total))getMem('docker')getTotalMen()

getMem("自己制定要监控的进程name")

执行脚本 

[root@iZ25av9xi4hZ ~]# python monitor_mem.pydocker所占内存:64520kB总的内存大小        1016796 kB

.

如果有什么问题，欢迎指出

.