Python psutil模块简单使用实例
安装很简单
代码如下:
pip install psutil
官网地址为:
https://pythonhosted.org/psutil/ (文档上有详细的api)
github地址为:
https://github.com/giampaolo/psutil/
psutil比较好的地方,一个是跨平台,不需要切换平台的时候在重新开放了,另外一个好处的工具集中CPU, memory, disks, network,这些信息都可以获得到。
可以用来做系统监控,性能分析,进程管理。 可以支持的系统有Linux, Windows, OSX, FreeBSD and Sun Solaris,32和64位系统都支持,同时支持pyhton2.4到3.4。
为了看看跨平台的好不好用,在windows实验下
代码如下:
#-*- coding: utf-8 -*-
#python2.7x
#author: orangleliu@gmail.com 2014-12-12
#psutiltest.py
'''''
照着教程简单学习下psutil的使用,windows下试试
'''
import psutil
import datetime
#查看cpu的信息
print u"CPU 个数 %s"%psutil.cpu_count()
print u"物理CPU个数 %s"%psutil.cpu_count(logical=False)
print u"CPU uptimes"
print psutil.cpu_times()
print ""
#查看内存信息
print u"系统总内存 %s M"%(psutil.TOTAL_PHYMEM/1024/1024)
print u"系统可用内存 %s M"%(psutil.avail_phymem()/1024/1024)
mem_rate = int(psutil.avail_phymem())/float(psutil.TOTAL_PHYMEM)
print u"系统内存使用率 %s %%"%int(mem_rate*100)
#系统启动时间
print u"系统启动时间 %s"%datetime.datetime.fromtimestamp(psutil.boot_time()).strftime("%Y-%m-%d %H:%M:%S")
#系统用户
users_count = len(psutil.users())
users_list = ",".join([ u.name for u in psutil.users()])
print u"当前有%s个用户,分别是%s"%(users_count, users_list)
#网卡,可以得到网卡属性,连接数,当前流量等信息
net = psutil.net_io_counters()
bytes_sent = '{0:.2f} kb'.format(net.bytes_recv / 1024)
bytes_rcvd = '{0:.2f} kb'.format(net.bytes_sent / 1024)
print u"网卡接收流量 %s 网卡发送流量 %s"%(bytes_rcvd, bytes_sent)
#进程 进程的各种详细参数
#磁盘 磁盘的使用量等等
从这个简单的案例中可见psuti的强大,在window上也如此好用,做系统数据采集非常合适。
如果需要使用请详细参考官方文档。
gist上也有些代码片段可以参考https://gist.github.com/search?q=psutil

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