About
psutil is a cross-platform library for retrieving information about running processes and system utilization (CPU, memory, disks, network, sensors) in Python. It is useful mainly for system monitoring, profiling, limiting process resources, and managing running processes. It implements many functionalities offered by UNIX command line tool such as ps, top, free, iotop, netstat, ifconfig, lsof and others (see shell equivalents). Psutil supports the following platforms:
- Linux
- Windows
- macOS
- FreeBSD, OpenBSD, NetBSD
- Sun Solaris
- AIX
Adoption
psutil is among the top 100 most-downloaded packages on PyPI, with 370+ million downloads per month and 780,000+ GitHub repositories using it. See also adoptions and alternatives.
Install
pip install psutil
For platform-specific details see installation.
Documentation
psutil documentation is available at https://psutil.io.
Sponsors
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Example usages
For the full API with more examples, see the API overview and API reference.
CPU
>>> import psutil
>>> psutil.cpu_percent(interval=1, percpu=True)
[4.0, 6.9, 3.7, 9.2]
>>> psutil.cpu_count(logical=False)
2
>>> psutil.cpu_freq()
scpufreq(current=931.42, min=800.0, max=3500.0)
Memory
>>> psutil.virtual_memory()
svmem(total=10367352832, available=6472179712, percent=37.6, used=8186245120, free=2181107712, ...)
>>> psutil.swap_memory()
sswap(total=2097147904, used=296128512, free=1801019392, percent=14.1, sin=304193536, sout=677842944)
Disks
>>> psutil.disk_partitions()
[sdiskpart(device='/dev/sda1', mountpoint='/', fstype='ext4', opts='rw,nosuid'),
sdiskpart(device='/dev/sda2', mountpoint='/home', fstype='ext', opts='rw')]
>>> psutil.disk_usage('/')
sdiskusage(total=21378641920, used=4809781248, free=15482871808, percent=22.5)
Network
>>> psutil.net_io_counters(pernic=True)
{'eth0': netio(bytes_sent=485291293, bytes_recv=6004858642, ...),
'lo': netio(bytes_sent=2838627, bytes_recv=2838627, ...)}
>>> psutil.net_connections(kind='tcp')
[sconn(fd=115, family=2, type=1, laddr=addr(ip='10.0.0.1', port=48776), raddr=addr(ip='93.186.135.91', port=80), status='ESTABLISHED', pid=1254),
...]
Sensors
>>> psutil.sensors_temperatures()
{'coretemp': [shwtemp(label='Physical id 0', current=52.0, high=100.0, critical=100.0),
shwtemp(label='Core 0', current=45.0, high=100.0, critical=100.0)]}
>>> psutil.sensors_battery()
sbattery(percent=93, secsleft=16628, power_plugged=False)
Processes
>>> p = psutil.Process(7055)
>>> p.name()
'python3'
>>> p.exe()
'/usr/bin/python3'
>>> p.cpu_percent(interval=1.0)
12.1
>>> p.memory_info()
pmem(rss=3164160, vms=4410163, shared=897433, text=302694, data=2422374)
>>> p.net_connections(kind='tcp')
[pconn(fd=115, family=2, type=1, laddr=addr(ip='10.0.0.1', port=48776), raddr=addr(ip='93.186.135.91', port=80), status='ESTABLISHED')]
>>> p.open_files()
[popenfile(path='/home/giampaolo/monit.py', fd=3, position=0, mode='r', flags=32768)]
>>>
>>> for p in psutil.process_iter(['pid', 'name']):
... print(p.pid, p.name())
...
1 systemd
2 kthreadd
3 ksoftirqd/0
...
License
BSD-3