| |downloads| |stars| |forks| |contributors| |coverage| |quality|
| |version| |py-versions| |packages| |license|
| |travis| |appveyor| |cirrus| |doc| |twitter| |tidelift|
.. |downloads| image:: https://img.shields.io/pypi/dm/psutil.svg
:target: https://pepy.tech/project/psutil
:alt: Downloads
.. |stars| image:: https://img.shields.io/github/stars/giampaolo/psutil.svg
:target: https://github.com/giampaolo/psutil/stargazers
:alt: Github stars
.. |forks| image:: https://img.shields.io/github/forks/giampaolo/psutil.svg
:target: https://github.com/giampaolo/psutil/network/members
:alt: Github forks
.. |contributors| image:: https://img.shields.io/github/contributors/giampaolo/psutil.svg
:target: https://github.com/giampaolo/psutil/graphs/contributors
:alt: Contributors
.. |quality| image:: https://img.shields.io/codacy/grade/ce63e7f7f69d44b5b59682196e6fbfca.svg
:target: https://www.codacy.com/app/g-rodola/psutil?utm_source=github.com&utm_medium=referral&utm_content=giampaolo/psutil&utm_campaign=Badge_Grade
:alt: Code quality
.. |travis| image:: https://img.shields.io/travis/giampaolo/psutil/master.svg?maxAge=3600&label=Linux,%20OSX,%20PyPy
:target: https://travis-ci.org/giampaolo/psutil
:alt: Linux tests (Travis)
.. |appveyor| image:: https://img.shields.io/appveyor/ci/giampaolo/psutil/master.svg?maxAge=3600&label=Windows
:target: https://ci.appveyor.com/project/giampaolo/psutil
:alt: Windows tests (Appveyor)
.. |cirrus| image:: https://img.shields.io/cirrus/github/giampaolo/psutil?label=FreeBSD
:target: https://cirrus-ci.com/github/giampaolo/psutil-cirrus-ci
:alt: FreeBSD tests (Cirrus-Ci)
.. |coverage| image:: https://img.shields.io/coveralls/github/giampaolo/psutil.svg?label=test%20coverage
:target: https://coveralls.io/github/giampaolo/psutil?branch=master
:alt: Test coverage (coverall.io)
.. |doc| image:: https://readthedocs.org/projects/psutil/badge/?version=latest
:target: http://psutil.readthedocs.io/en/latest/?badge=latest
:alt: Documentation Status
.. |version| image:: https://img.shields.io/pypi/v/psutil.svg?label=pypi
:target: https://pypi.org/project/psutil
:alt: Latest version
.. |py-versions| image:: https://img.shields.io/pypi/pyversions/psutil.svg
:target: https://pypi.org/project/psutil
:alt: Supported Python versions
.. |packages| image:: https://repology.org/badge/tiny-repos/python:psutil.svg
:target: https://repology.org/metapackage/python:psutil/versions
:alt: Binary packages
.. |license| image:: https://img.shields.io/pypi/l/psutil.svg
:target: https://github.com/giampaolo/psutil/blob/master/LICENSE
:alt: License
.. |twitter| image:: https://img.shields.io/twitter/follow/grodola.svg?label=follow&style=flat&logo=twitter&logoColor=4FADFF
:target: https://twitter.com/grodola
:alt: Twitter Follow
.. |tidelift| image:: https://tidelift.com/badges/github/giampaolo/psutil?style=flat
:target: https://tidelift.com/subscription/pkg/pypi-psutil?utm_source=pypi-psutil&utm_medium=referral&utm_campaign=readme
:alt: Tidelift
Quick links
Home page <https://github.com/giampaolo/psutil>_Install <https://github.com/giampaolo/psutil/blob/master/INSTALL.rst>_Documentation <http://psutil.readthedocs.io>_Download <https://pypi.org/project/psutil/#files>_Forum <http://groups.google.com/group/psutil/topics>_StackOverflow <https://stackoverflow.com/questions/tagged/psutil>_Blog <http://grodola.blogspot.com/search/label/psutil>_Development guide <https://github.com/giampaolo/psutil/blob/master/docs/DEVGUIDE.rst>_What's new <https://github.com/giampaolo/psutil/blob/master/HISTORY.rst>_
Summary
psutil (process and system utilities) is a cross-platform library for
retrieving information on running processes and system utilization
(CPU, memory, disks, network, sensors) in Python.
It is useful mainly for system monitoring, profiling and limiting process
resources and management of running processes.
It implements many functionalities offered by classic UNIX command line tools
such as ps, top, iotop, lsof, netstat, ifconfig, free and others.
psutil currently supports the following platforms:
- Linux
- Windows
- macOS
- FreeBSD, OpenBSD, NetBSD
- Sun Solaris
- AIX
...both 32-bit and 64-bit architectures. Supported Python versions are 2.6, 2.7 and 3.4+. PyPy3 <http://pypy.org/>__ is also known to work.
psutil for enterprise
.. |tideliftlogo| image:: https://nedbatchelder.com/pix/Tidelift_Logos_RGB_Tidelift_Shorthand_On-White_small.png
:width: 150
:alt: Tidelift
:target: https://tidelift.com/subscription/pkg/pypi-psutil?utm_source=pypi-psutil&utm_medium=referral&utm_campaign=readme
.. list-table::
:widths: 10 150
-
-
|tideliftlogo|
-
The maintainer of psutil and thousands of other packages are working
with Tidelift to deliver commercial support and maintenance for the open
source dependencies you use to build your applications. Save time,
reduce risk, and improve code health, while paying the maintainers of
the exact dependencies you use.
Learn more <https://tidelift.com/subscription/pkg/pypi-psutil?utm_source=pypi-psutil&utm_medium=referral&utm_campaign=enterprise&utm_term=repo>__.By subscribing to Tidelift you will help me (
Giampaolo Rodola) support
psutil future development. Alternatively consider making a small
donation.
-
Security
To report a security vulnerability, please use the Tidelift security contact_. Tidelift will coordinate the fix and disclosure.
Example applications
+------------------------------------------------------------------------------------------------+--------------------------------------------------------------------------------------------+
| .. image:: https://github.com/giampaolo/psutil/blob/master/docs/_static/procinfo-small.png | .. image:: https://github.com/giampaolo/psutil/blob/master/docs/_static/top-small.png |
| :target: https://github.com/giampaolo/psutil/blob/master/docs/_static/procinfo.png | :target: https://github.com/giampaolo/psutil/blob/master/docs/_static/top.png |
+------------------------------------------------------------------------------------------------+--------------------------------------------------------------------------------------------+
| .. image:: https://github.com/giampaolo/psutil/blob/master/docs/_static/procsmem-small.png | .. image:: https://github.com/giampaolo/psutil/blob/master/docs/_static/pmap-small.png |
| :target: https://github.com/giampaolo/psutil/blob/master/docs/_static/procsmem.png | :target: https://github.com/giampaolo/psutil/blob/master/docs/_static/pmap.png |
+------------------------------------------------------------------------------------------------+--------------------------------------------------------------------------------------------+
Also see scripts directory <https://github.com/giampaolo/psutil/tree/master/scripts>__
and doc recipes <http://psutil.readthedocs.io/#recipes/>__.
Projects using psutil
psutil has roughly the following monthly downloads:
.. image:: https://img.shields.io/pypi/dm/psutil.svg
:target: https://pepy.tech/project/psutil
:alt: Downloads
There are over
10.000 open source projects <https://libraries.io/pypi/psutil/dependent_repositories?page=1>__
on github which depend from psutil.
Here's some I find particularly interesting:
- https://github.com/google/grr
- https://github.com/facebook/osquery/
- https://github.com/nicolargo/glances
- https://github.com/Jahaja/psdash
- https://github.com/ajenti/ajenti
- https://github.com/home-assistant/home-assistant/
Portings
- Go: https://github.com/shirou/gopsutil
- C: https://github.com/hamon-in/cpslib
- Rust: https://github.com/borntyping/rust-psutil
- Nim: https://github.com/johnscillieri/psutil-nim
Example usages
This represents pretty much the whole psutil API.
CPU
.. code-block:: python
>>> import psutil
>>>
>>> psutil.cpu_times()
scputimes(user=3961.46, nice=169.729, system=2150.659, idle=16900.540, iowait=629.59, irq=0.0, softirq=19.42, steal=0.0, guest=0, nice=0.0)
>>>
>>> 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, 3.7, 9.2]
[7.0, 8.5, 2.4, 2.1]
[1.2, 9.0, 9.9, 7.2]
>>>
>>> for x in range(3):
... psutil.cpu_times_percent(interval=1, percpu=False)
...
scputimes(user=1.5, nice=0.0, system=0.5, idle=96.5, iowait=1.5, irq=0.0, softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0)
scputimes(user=1.0, nice=0.0, system=0.0, idle=99.0, iowait=0.0, irq=0.0, softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0)
scputimes(user=2.0, nice=0.0, system=0.0, idle=98.0, iowait=0.0, irq=0.0, softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0)
>>>
>>> psutil.cpu_count()
4
>>> psutil.cpu_count(logical=False)
2
>>>
>>> psutil.cpu_stats()
scpustats(ctx_switches=20455687, interrupts=6598984, soft_interrupts=2134212, syscalls=0)
>>>
>>> psutil.cpu_freq()
scpufreq(current=931.42925, min=800.0, max=3500.0)
>>>
>>> psutil.getloadavg() # also on Windows (emulated)
(3.14, 3.89, 4.67)
Memory
.. code-block:: python
>>> psutil.virtual_memory()
svmem(total=10367352832, available=6472179712, percent=37.6, used=8186245120, free=2181107712, active=4748992512, inactive=2758115328, buffers=790724608, cached=3500347392, shared=787554304)
>>> psutil.swap_memory()
sswap(total=2097147904, used=296128512, free=1801019392, percent=14.1, sin=304193536, sout=677842944)
>>>
Disks
.. code-block:: python
>>> 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)
>>>
>>> psutil.disk_io_counters(perdisk=False)
sdiskio(read_count=719566, write_count=1082197, read_bytes=18626220032, write_bytes=24081764352, read_time=5023392, write_time=63199568, read_merged_count=619166, write_merged_count=812396, busy_time=4523412)
>>>
Network
.. code-block:: python
>>> psutil.net_io_counters(pernic=True)
{'eth0': netio(bytes_sent=485291293, bytes_recv=6004858642, packets_sent=3251564, packets_recv=4787798, errin=0, errout=0, dropin=0, dropout=0),
'lo': netio(bytes_sent=2838627, bytes_recv=2838627, packets_sent=30567, packets_recv=30567, errin=0, errout=0, dropin=0, dropout=0)}
>>>
>>> psutil.net_connections()
[sconn(fd=115, family=<AddressFamily.AF_INET: 2>, type=<SocketType.SOCK_STREAM: 1>, laddr=addr(ip='10.0.0.1', port=48776), raddr=addr(ip='93.186.135.91', port=80), status='ESTABLISHED', pid=1254),
sconn(fd=117, family=<AddressFamily.AF_INET: 2>, type=<SocketType.SOCK_STREAM: 1>, laddr=addr(ip='10.0.0.1', port=43761), raddr=addr(ip='72.14.234.100', port=80), status='CLOSING', pid=2987),
...]
>>>
>>> psutil.net_if_addrs()
{'lo': [snicaddr(family=<AddressFamily.AF_INET: 2>, address='127.0.0.1', netmask='255.0.0.0', broadcast='127.0.0.1', ptp=None),
snicaddr(family=<AddressFamily.AF_INET6: 10>, address='::1', netmask='ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff', broadcast=None, ptp=None),
snicaddr(family=<AddressFamily.AF_LINK: 17>, address='00:00:00:00:00:00', netmask=None, broadcast='00:00:00:00:00:00', ptp=None)],
'wlan0': [snicaddr(family=<AddressFamily.AF_INET: 2>, address='192.168.1.3', netmask='255.255.255.0', broadcast='192.168.1.255', ptp=None),
snicaddr(family=<AddressFamily.AF_INET6: 10>, address='fe80::c685:8ff:fe45:641%wlan0', netmask='ffff:ffff:ffff:ffff::', broadcast=None, ptp=None),
snicaddr(family=<AddressFamily.AF_LINK: 17>, address='c4:85:08:45:06:41', netmask=None, broadcast='ff:ff:ff:ff:ff:ff', ptp=None)]}
>>>
>>> psutil.net_if_stats()
{'lo': snicstats(isup=True, duplex=<NicDuplex.NIC_DUPLEX_UNKNOWN: 0>, speed=0, mtu=65536),
'wlan0': snicstats(isup=True, duplex=<NicDuplex.NIC_DUPLEX_FULL: 2>, speed=100, mtu=1500)}
>>>
Sensors
.. code-block:: python
>>> import psutil
>>> psutil.sensors_temperatures()
{'acpitz': [shwtemp(label='', current=47.0, high=103.0, critical=103.0)],
'asus': [shwtemp(label='', current=47.0, high=None, critical=None)],
'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_fans()
{'asus': [sfan(label='cpu_fan', current=3200)]}
>>>
>>> psutil.sensors_battery()
sbattery(percent=93, secsleft=16628, power_plugged=False)
>>>
Other system info
.. code-block:: python
>>> import psutil
>>> psutil.users()
[suser(name='giampaolo', terminal='pts/2', host='localhost', started=1340737536.0, pid=1352),
suser(name='giampaolo', terminal='pts/3', host='localhost', started=1340737792.0, pid=1788)]
>>>
>>> psutil.boot_time()
1365519115.0
>>>
Process management
.. code-block:: python
>>> import psutil
>>> psutil.pids()
[1, 2, 3, 4, 5, 6, 7, 46, 48, 50, 51, 178, 182, 222, 223, 224, 268, 1215, 1216, 1220, 1221, 1243, 1244,
1301, 1601, 2237, 2355, 2637, 2774, 3932, 4176, 4177, 4185, 4187, 4189, 4225, 4243, 4245, 4263, 4282,
4306, 4311, 4312, 4313, 4314, 4337, 4339, 4357, 4358, 4363, 4383, 4395, 4408, 4433, 4443, 4445, 4446,
5167, 5234, 5235, 5252, 5318, 5424, 5644, 6987, 7054, 7055, 7071]
>>>
>>> p = psutil.Process(7055)
>>> p
psutil.Process(pid=7055, name='python', started='09:04:44')
>>> p.name()
'python'
>>> p.exe()
'/usr/bin/python'
>>> p.cwd()
'/home/giampaolo'
>>> p.cmdline()
['/usr/bin/python', 'main.py']
>>>
>>> p.pid
7055
>>> p.ppid()
7054
>>> p.children(recursive=True)
[psutil.Process(pid=29835, name='python2.7', started='11:45:38'),
psutil.Process(pid=29836, name='python2.7', started='11:43:39')]
>>>
>>> p.parent()
psutil.Process(pid=4699, name='bash', started='09:06:44')
>>> p.parents()
[psutil.Process(pid=4699, name='bash', started='09:06:44'),
psutil.Process(pid=4689, name='gnome-terminal-server', started='0:06:44'),
psutil.Process(pid=1, name='systemd', started='05:56:55')]
>>>
>>> p.status()
'running'
>>> p.username()
'giampaolo'
>>> p.create_time()
1267551141.5019531
>>> p.terminal()
'/dev/pts/0'
>>>
>>> p.uids()
puids(real=1000, effective=1000, saved=1000)
>>> p.gids()
pgids(real=1000, effective=1000, saved=1000)
>>>
>>> p.cpu_times()
pcputimes(user=1.02, system=0.31, children_user=0.32, children_system=0.1, iowait=0.0)
>>> p.cpu_percent(interval=1.0)
12.1
>>> p.cpu_affinity()
[0, 1, 2, 3]
>>> p.cpu_affinity([0, 1]) # set
>>> p.cpu_num()
1
>>>
>>> p.memory_info()
pmem(rss=10915840, vms=67608576, shared=3313664, text=2310144, lib=0, data=7262208, dirty=0)
>>> p.memory_full_info() # "real" USS memory usage (Linux, macOS, Win only)
pfullmem(rss=10199040, vms=52133888, shared=3887104, text=2867200, lib=0, data=5967872, dirty=0, uss=6545408, pss=6872064, swap=0)
>>> p.memory_percent()
0.7823
>>> p.memory_maps()
[pmmap_grouped(path='/lib/x8664-linux-gnu/libutil-2.15.so', rss=32768, size=2125824, pss=32768, shared_clean=0, shared_dirty=0, private_clean=20480, private_dirty=12288, referenced=32768, anonymous=12288, swap=0),
pmmap_grouped(path='/lib/x8664-linux-gnu/libc-2.15.so', rss=3821568, size=3842048, pss=3821568, shared_clean=0, shared_dirty=0, private_clean=0, private_dirty=3821568, referenced=3575808, anonymous=3821568, swap=0),
pmmap_grouped(path='[heap]', rss=32768, size=139264, pss=32768, shared_clean=0, shared_dirty=0, private_clean=0, private_dirty=32768, referenced=32768, anonymous=32768, swap=0),
pmmap_grouped(path='[stack]', rss=2465792, size=2494464, pss=2465792, shared_clean=0, shared_dirty=0, private_clean=0, private_dirty=2465792, referenced=2277376, anonymous=2465792, swap=0),
...]
>>>
>>> p.io_counters()
pio(read_count=478001, write_count=59371, read_bytes=700416, write_bytes=69632, read_chars=456232, write_chars=517543)
>>>
>>> p.open_files()
[popenfile(path='/home/giampaolo/monit.py', fd=3, position=0, mode='r', flags=32768),
popenfile(path='/var/log/monit.log', fd=4, position=235542, mode='a', flags=33793)]
>>>
>>> p.connections()
[pconn(fd=115, family=<AddressFamily.AF_INET: 2>, type=<SocketType.SOCK_STREAM: 1>, laddr=addr(ip='10.0.0.1', port=48776), raddr=addr(ip='93.186.135.91', port=80), status='ESTABLISHED'),
pconn(fd=117, family=<AddressFamily.AF_INET: 2>, type=<SocketType.SOCK_STREAM: 1>, laddr=addr(ip='10.0.0.1', port=43761), raddr=addr(ip='72.14.234.100', port=80), status='CLOSING')]
>>>
>>> p.num_threads()
4
>>> p.num_fds()
8
>>> p.threads()
[pthread(id=5234, user_time=22.5, system_time=9.2891),
pthread(id=5237, user_time=0.0707, system_time=1.1)]
>>>
>>> p.num_ctx_switches()
pctxsw(voluntary=78, involuntary=19)
>>>
>>> p.nice()
0
>>> p.nice(10) # set
>>>
>>> p.ionice(psutil.IOPRIO_CLASS_IDLE) # IO priority (Win and Linux only)
>>> p.ionice()
pionice(ioclass=<IOPriority.IOPRIO_CLASS_IDLE: 3>, value=0)
>>>
>>> p.rlimit(psutil.RLIMIT_NOFILE, (5, 5)) # set resource limits (Linux only)
>>> p.rlimit(psutil.RLIMIT_NOFILE)
(5, 5)
>>>
>>> p.environ()
{'LC_PAPER': 'it_IT.UTF-8', 'SHELL': '/bin/bash', 'GREP_OPTIONS': '--color=auto',
'XDG_CONFIG_DIRS': '/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg',
...}
>>>
>>> p.as_dict()
{'status': 'running', 'num_ctx_switches': pctxsw(voluntary=63, involuntary=1), 'pid': 5457, ...}
>>> p.is_running()
True
>>> p.suspend()
>>> p.resume()
>>>
>>> p.terminate()
>>> p.kill()
>>> p.wait(timeout=3)
0
>>>
>>> psutil.test()
USER PID %CPU %MEM VSZ RSS TTY START TIME COMMAND
root 1 0.0 0.0 24584 2240 Jun17 00:00 init
root 2 0.0 0.0 0 0 Jun17 00:00 kthreadd
...
giampaolo 31475 0.0 0.0 20760 3024 /dev/pts/0 Jun19 00:00 python2.4
giampaolo 31721 0.0 2.2 773060 181896 00:04 10:30 chrome
root 31763 0.0 0.0 0 0 00:05 00:00 kworker/0:1
>>>
Further process APIs
.. code-block:: python
>>> import psutil
>>> for proc in psutil.process_iter(['pid', 'name']):
... print(proc.info)
...
{'pid': 1, 'name': 'systemd'}
{'pid': 2, 'name': 'kthreadd'}
{'pid': 3, 'name': 'ksoftirqd/0'}
...
>>>
>>> psutil.pid_exists(3)
True
>>>
>>> def on_terminate(proc):
... print("process {} terminated".format(proc))
...
>>> # waits for multiple processes to terminate
>>> gone, alive = psutil.wait_procs(procs_list, timeout=3, callback=on_terminate)
>>>
Popen wrapper:
.. code-block:: python
>>> import psutil
>>> from subprocess import PIPE
>>> p = psutil.Popen(["/usr/bin/python", "-c", "print('hello')"], stdout=PIPE)
>>> p.name()
'python'
>>> p.username()
'giampaolo'
>>> p.communicate()
('hello\n', None)
>>> p.wait(timeout=2)
0
>>>
Windows services
.. code-block:: python
>>> list(psutil.win_service_iter())
[<WindowsService(name='AeLookupSvc', display_name='Application Experience') at 38850096>,
<WindowsService(name='ALG', display_name='Application Layer Gateway Service') at 38850128>,
<WindowsService(name='APNMCP', display_name='Ask Update Service') at 38850160>,
<WindowsService(name='AppIDSvc', display_name='Application Identity') at 38850192>,
...]
>>> s = psutil.win_service_get('alg')
>>> s.as_dict()
{'binpath': 'C:\\Windows\\System32\\alg.exe',
'description': 'Provides support for 3rd party protocol plug-ins for Internet Connection Sharing',
'display_name': 'Application Layer Gateway Service',
'name': 'alg',
'pid': None,
'start_type': 'manual',
'status': 'stopped',
'username': 'NT AUTHORITY\\LocalService'}
.. _Giampaolo Rodola: http://grodola.blogspot.com/p/about.html
.. _donation: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=A9ZS7PKKRM3S8
.. _Tidelift security contact: https://tidelift.com/security
.. _Tidelift Subscription: https://tidelift.com/subscription/pkg/pypi-psutil?utm_source=pypi-psutil&utm_medium=referral&utm_campaign=readme