psutil

转自：http://www.du52.com/text.php?id=567一个可以获取机器状态信息的类
cpu和memory的信息使用psutil库psutil库下载地址https://pypi.python.org/pypi/psutil/2.1.1在大多数的情况下我们可以使用psutil库直接来获得机器的状态信息这里写这个类略显多此一举但是如果我们所要的数据定制性比较强，这样一段代码就可以作为蓝本，来定制自己所需要的数据代码我就不直接放在博客里了，我贴到了 Gist 上，下面的链接可以看到

#!/usr/bin/env python2
# -*- encoding: utf-8 -*-
# machine_status.py  获取本机资源使用信息、进程状态和连接情况
# created by vince67 (nuovince@gmail.com)
# May 2014

import datetime
import json
import os
import psutil as ps                       # psutil库 需预先安装
from pymongo import Connection
import time
import socket
import uuid

class MachineStatus(object):

#   初始化
def __init__(self):
self.MAC = None
self.IP = None
self.cpu = {}
self.mem = {}
self.process = {}
self.network = {}
self.status = []                    #  [cpu使用率， 内存使用率， 进程数目， established连接数]
self.get_init_info()
self.get_status_info()

#  宿主机存库状态
def run(self):
self.get_status_info()
self.save_status_to_db()

def save_status_to_db(self):
print self.status

#  数据收集
def get_init_info(self):
self.cpu = {'cores' : 0,            #  cpu逻辑核数
'percent' : 0,          #  cpu使用率
'system_time' : 0,      #  内核态系统时间
'user_time' : 0,        #  用户态时间
'idle_time' : 0,        #  空闲时间
'nice_time' : 0,        #  nice时间 (花费在调整进程优先级上的时间)
'softirq' : 0,          #  软件中断时间
'irq' : 0,              #  中断时间
'iowait' : 0}           #  IO等待时间
self.mem = {'percent' : 0,
'total' : 0,
'vailable' : 0,
'used' : 0,
'free' : 0,
'active' : 0}
self.process = {'count' : 0,        #  进程数目
'pids' : 0}         #  进程识别号
self.network = {'count' : 0,        #  连接总数
'established' : 0}  #  established连接数
self.status = [0, 0, 0, 0]          #  cpu使用率，内存使用率， 进程数， established连接数
self.get_mac_address()
self.get_ip_address()

#  获取状态列表
def get_status_info(self):
self.get_cpu_info()
self.get_mem_info()
self.get_process_info()
self.get_network_info()
self.status[0] = self.cpu['percent']
self.status[1] = self.mem['percent']
self.status[2] = self.process['count']
self.status[3] = self.network['established']

#  获取mac
def get_mac_address(self):
mac = uuid.UUID(int=uuid.getnode()).hex[-12:]
self.MAC = ":".join([mac[e : e+2] for e in range(0, 11, 2)])

#  获取ip
def get_ip_address(self):
tempSock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
tempSock.connect(('8.8.8.8', 80))
addr = tempSock.getsockname()[0]
tempSock.close()
self.IP = addr

#  获得cpu信息
def get_cpu_info(self):
self.cpu['cores'] = ps.cpu_count()
self.cpu['percent'] = ps.cpu_percent(interval=2)
cpu_times = ps.cpu_times()
self.cpu['system_time'] = cpu_times.system
self.cpu['user_time'] = cpu_times.user
self.cpu['idle_time'] = cpu_times.idle
self.cpu['nice_time'] = cpu_times.nice
self.cpu['softirq'] = cpu_times.softirq
self.cpu['irq'] = cpu_times.irq
self.cpu['iowait'] = cpu_times.iowait

#  获得memory信息
def get_mem_info(self):
mem_info = ps.virtual_memory()
self.mem['percent'] = mem_info.percent
self.mem['total'] = mem_info.total
self.mem['vailable'] = mem_info.available
self.mem['used'] = mem_info.used
self.mem['free'] = mem_info.free
self.mem['active'] = mem_info.active

#  获取进程信息
def get_process_info(self):
pids = ps.pids()
self.process['pids'] = pids
self.process['count'] = len(pids)

#  获取网络数据
def get_network_info(self):
conns = ps.net_connections()
self.network['count'] = len(conns)
count = 0
for conn in conns:
if conn.status is 'ESTABLISHED':
count = count + 1
self.network['established'] = count

if __name__ == '__main__':
MS = MachineStatus()
print MS.IP, '\n', MS.MAC, '\n', MS.cpu, '\n', MS.mem, '\n', MS.status