Python gets Linux system performance information

This article and later articles on Python operations are reading notes forPython automated operations: technology and best Practices .

Psutil is a third-party library of Python that makes it easy to get a variety of information about the system running: CPU, memory, disk, network, etc.

An installation

Installation environment is CentOS 6.4 64-bit system

Yum install-y gcc python-develwget https://pypi.python.org/packages/source/p/psutil/psutil-2.0.0.tar.gz-- NO-CHECK-CERTIFICATETAR-ZXVF psutil-2.0.0.tar.gz CD Psutil-2.0.0python setup.py install

Two Get System Information

(1) CPU information

The CPU utilization of the Linux operating system has the following parts:

• User time, percentage of times to execute the process

• System time, percent execution of kernel processes and interrupts

• Wait io, percentage of time that the CPU is idle due to IO waits

• Idle, percentage of time that the CPU is in idle state

Import Psutilpsutil.cpu_times () #使用cpu_times method Get CPU Complete information scputimes (user=3.1099999999999999, nice=0.0, system=11.25, idle=650.85000000000002, iowait=6.4199999999999999, irq=0.26000000000000001, softirq=0.57999999999999996, steal= 0.0, guest=0.0) psutil.cpu_times (). User #获取用户 user CPU time ratio result: 3.25

(2) Memory information

Mem=psutil.virtual_memory () #使用psutil. Virtual_memory method Get memory Full information Memsvmem (total=1036849152l, available=911863808l, percent=12.1, used=230907904l, free=805941248l, active=56578048, inactive=81563648, buffers=18456576l, cached= 87465984)

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Python gets Linux system performance information