Python的進程處理工具包：psutil

psutil 是一個 Python模塊用來獲取正在運行的進程信息和系統的CPU和內存的利用率。類似 Linux 的 ps 、top 和 Windows 的任務管理器等程序。

>>> import psutil
>>> psutil.cpu_times()
cputimes(user=3961.46, nice=169.729, system=2150.659, idle=16900.540, iowait=629.509, irq=0.0, softirq=19.422)
>>>
>>> for x in range(3):
...     psutil.cpu_percent(interval=1)
... 
4.0
5.9
3.8
>>>
>>> for x in range(3):
...     psutil.cpu_percent(interval=1, percpu=True)
... 
[4.0, 6.9]
[7.0, 8.5]
[1.2, 9.0]
>>>
>>> psutil.NUM_CPUS
2
>>>

Disks

>>> psutil.disk_partitions()
[partition(device='/dev/sda1', mountpoint='/', fstype='ext4'),
 partition(device='/dev/sda2', mountpoint='/home', fstype='ext4')]
>>>
>>> psutil.disk_usage('/')
usage(total=21378641920, used=4809781248, free=15482871808, percent=22.5)
>>>
>>> psutil.disk_io_counters()
iostat(read_count=719566, write_count=1082197, read_bytes=18626220032, 
       write_bytes=24081764352, read_time=5023392, write_time=63199568)
>>>

項目主頁：http://www.baiduhome.net/lib/view/home/1360159277267