Python 获取linux资源使用情况

#!/usr/bin/python
# -*- coding:utf-8 -*-

import socket
import psutil


class NodeResource(object):
    def get_host_info(self):
        host_name = socket.gethostname()
        return {'host_name': host_name}

    def get_cpu_state(self):
        '''获取CPU使用情况'''
        cpu_count = psutil.cpu_count(logical=False)
        cpu_percent = (str)(psutil.cpu_percent(1)) + '%'
        return {'cpu_count': cpu_count, 'cpu_percent': cpu_percent}

    def get_memory_state(self):
        '''获取内存使用情况'''
        mem = psutil.virtual_memory()
        mem_total = mem.total / 1024 / 1024
        mem_free = mem.available / 1024 / 1024
        mem_percent = '%s%%' % mem.percent
        return {'mem_toal': mem_total, 'mem_free': mem_free, 'mem_percent': mem_percent}

    def get_disk_state(self):
        '''获取磁盘使用情况'''
        disk_stat = psutil.disk_usage('/')
        disk_total = disk_stat.total
        disk_free = disk_stat.free
        disk_percent = '%s%%' % disk_stat.percent
        return {'mem_toal': disk_total, 'mem_free': disk_free, 'mem_percent': disk_percent}


obj = NodeResource()
print(obj.get_host_info)
print(obj.get_cpu_state())
print(obj.get_memory_state)
print(obj.get_disk_state)