使用python实现统计Nginx进程所占用的物理内存
#!/usr/bin/python#coding:utf8
from subprocess import Popen, PIPE
import os
#如果需要对httpd进行统计可以把nginx改为httpd,其它服务统计同理,但有部分无法实现,如oracle
nginxpid = Popen(["pidof", "nginx"], stdout=PIPE)
nginxpid = nginxpid.stdout.read().split()
memsum = 0
for 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())
memsum += pidmem
print("%d %s" %(memsum,"KB"))
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