Python's Psutil module

System Basic Information Module

Psutil Module https://pypi.python.org/pypi/psutil/

System Performance Section

1.CPU Info

Psutil.cpu_times () # get full CPU information Note: Different versions display different content

includes:User # Users account for CPU time system # CPU time idle #cpu idle time

Interrupt # can interrupt sleep time DPC #

Psutil.cpu_count () # gets the number of CPUlogic = = = Logical = False gets The number of CPU physical

2.Memory Info

Psutil.virtual_memory () # get complete information on memory

includes:Total # gross available used free buffers ( buffer count ) cacheActive inactive

Psutil.swap_memory () # get swap partition information

3.Disk Info:

Psutil.disk.usage (") # View the usage of a partition , need a parameter

Psutil.disk_partiotions () # gets disk information that shows which disks and partitions

Psutil.disk_io_counters () # get the total number of Io perdisk=true get the number of IO per partition

includes: Read and write times Number of bytes Time

4.Network Info:

Psutil.net_io_counters () # get the total IO information of the network pernic=true output io per network interface

includes: Bytes sent, Bytes received, datagrams sent, number of packets received, number of error IO discarded

5. Other info:

Psutil.users () # returns information for the current user

Psutil.boot_time () # Get boot time, return in Linux timestamp format

System processes:

1. Process information:

Psutil.pids () # list all process PID

Psutil.process () returns a process object with the parameter pid

instantiate an object:p = psutil. Process (PID)

P.name () # process name

P.exe () # process bin Path

P.CWD () # process working directory absolute path

P.status () # process status

P.create_time () # process creation time, timestamp format

P.cpu_times () # process CPU time Information

P.cpu_affinity () #get CPU affinity of the process

P.memory_percent () # Process Memory Utilization

P.memory_info () # Process Memory RSS , VMS Information

P.io_counters () # process io information, including read/write io number and number of bytes

P.connections () # Returns the Namedutples list of open process sockets

P.num_threads () # number of threads opened by the process

p.io_counters () # Process IO Information

P.connections () # Returns the Namedutples list of open process sockets

use of the Popen class: Used to obtain user-initiated application process information and to track the running state of the program process.

Example:psutil. Popen (["/usr/bin/python", "-C", "Print (' Hello ')"],stdout=pipe)

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Python's Psutil module