Using python to count the physical memory occupied by Nginx processes

Implementation code 1:

This method is suitable for statistics of unified names, such as httpd,ngins or php-fpm, etc.

#! / usr/bin/python#coding:utf8from subprocess import Popen, PIPEimport os#. If you need to count httpd, you can change nginx to httpd. Other service statistics are the same, but some of them cannot be implemented. For example, oraclenginxpid = Popen (["pidof", "nginx"], stdout=PIPE) nginxpid = nginxpid.stdout.read () .split () memsum = 0for i in nginxpid: pidfile = os.path.join ("/ proc/", str (I) "status") with open (pidfile) as f: for mem in f: if mem.startswith ("VmRSS"): pidmem = int (mem.split () [1]) memsum + = pidmemprint ("d% s"% (memsum, "KB"))

Implementation code 2:

This method is suitable for a user to do memory usage statistics. The final result is that all the memory information used by a user, the script usage method, and the user name to be counted are added to the script when executing the script.

#! / usr/bin/python#coding:utf8 "" this script requires the system to install smem software Installation method: yum-y install smem "" from subprocess import Popen, PIPEimport sysallmeminfo = Popen (["smem", "- u"] Stdout=PIPE) allmeminfo = allmeminfo.stdout.read () .split ("\ n") for i in allmeminfo: if i.startswith (sys.argv [1]): meminfo = i.split () print ("Process Name:" + meminfo [0]) print ("Total Process:" + meminfo [1]) print ("Physics Memroy Use:" + meminfo [5] + "KB")

The implementation results are as follows: