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350 строки
14 KiB
ReStructuredText
350 строки
14 KiB
ReStructuredText
.. image:: https://pypip.in/d/psutil/badge.png
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:target: https://crate.io/packages/psutil/
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:alt: Download this month
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.. image:: https://pypip.in/v/psutil/badge.png
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:target: https://pypi.python.org/pypi/psutil/
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:alt: Latest version
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.. image:: https://pypip.in/license/psutil/badge.png
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:target: https://pypi.python.org/pypi/psutil/
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:alt: License
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.. image:: https://api.travis-ci.org/giampaolo/psutil.png?branch=master
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:target: https://travis-ci.org/giampaolo/psutil
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:alt: Travis
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===========
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Quick links
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===========
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- `Home page <https://github.com/giampaolo/psutil>`_
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- `Documentation <http://pythonhosted.org/psutil/>`_
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- `Download <https://pypi.python.org/pypi?:action=display&name=psutil#downloads>`_
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- `Forum <http://groups.google.com/group/psutil/topics>`_
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- `Blog <http://grodola.blogspot.com/search/label/psutil>`_
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- `What's new <https://github.com/giampaolo/psutil/blob/master/HISTORY.rst>`_
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=======
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Summary
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=======
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psutil (python system and process utilities) is a cross-platform library for
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retrieving information on **running processes** and **system utilization**
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(CPU, memory, disks, network) in Python. It is useful mainly for **system
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monitoring**, **profiling and limiting process resources** and **management of
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running processes**. It implements many functionalities offered by command line
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tools such as: ps, top, lsof, netstat, ifconfig, who, df, kill, free, nice,
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ionice, iostat, iotop, uptime, pidof, tty, taskset, pmap. It currently supports
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**Linux, Windows, OSX, FreeBSD** and **Sun Solaris**, both **32-bit** and
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**64-bit** architectures, with Python versions from **2.4 to 3.4**. PyPy is
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also known to work.
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====================
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Example applications
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====================
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.. image:: http://psutil.googlecode.com/svn/wiki/images/top-thumb.png
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:target: http://psutil.googlecode.com/svn/wiki/images/top.png
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:alt: top
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.. image:: http://psutil.googlecode.com/svn/wiki/images/nettop-thumb.png
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:target: http://psutil.googlecode.com/svn/wiki/images/nettop.png
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:alt: nettop
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.. image:: http://psutil.googlecode.com/svn/wiki/images/iotop-thumb.png
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:target: http://psutil.googlecode.com/svn/wiki/images/iotop.png
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:alt: iotop
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See also:
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* https://github.com/nicolargo/glances
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* https://github.com/Jahaja/psdash
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* https://code.google.com/p/grr/
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==============
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Example usages
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==============
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CPU
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===
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.. code-block:: python
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>>> import psutil
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>>> psutil.cpu_times()
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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)
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>>>
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>>> for x in range(3):
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... psutil.cpu_percent(interval=1)
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...
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4.0
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5.9
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3.8
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>>>
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>>> for x in range(3):
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... psutil.cpu_percent(interval=1, percpu=True)
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...
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[4.0, 6.9, 3.7, 9.2]
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[7.0, 8.5, 2.4, 2.1]
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[1.2, 9.0, 9.9, 7.2]
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>>>
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>>>
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>>> for x in range(3):
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... psutil.cpu_times_percent(interval=1, percpu=False)
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...
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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)
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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)
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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)
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>>>
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>>> psutil.cpu_count()
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4
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>>> psutil.cpu_count(logical=False)
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2
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>>>
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Memory
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======
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.. code-block:: python
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>>> psutil.virtual_memory()
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svmem(total=8374149120L, available=2081050624L, percent=75.1, used=8074080256L, free=300068864L, active=3294920704, inactive=1361616896, buffers=529895424L, cached=1251086336)
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>>> psutil.swap_memory()
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sswap(total=2097147904L, used=296128512L, free=1801019392L, percent=14.1, sin=304193536, sout=677842944)
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>>>
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Disks
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=====
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.. code-block:: python
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>>> psutil.disk_partitions()
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[sdiskpart(device='/dev/sda1', mountpoint='/', fstype='ext4', opts='rw,nosuid'),
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sdiskpart(device='/dev/sda2', mountpoint='/home', fstype='ext, opts='rw')]
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>>>
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>>> psutil.disk_usage('/')
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sdiskusage(total=21378641920, used=4809781248, free=15482871808, percent=22.5)
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>>>
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>>> psutil.disk_io_counters(perdisk=False)
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sdiskio(read_count=719566, write_count=1082197, read_bytes=18626220032, write_bytes=24081764352, read_time=5023392, write_time=63199568)
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>>>
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Network
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=======
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.. code-block:: python
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>>> psutil.net_io_counters(pernic=True)
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{'eth0': netio(bytes_sent=485291293, bytes_recv=6004858642, packets_sent=3251564, packets_recv=4787798, errin=0, errout=0, dropin=0, dropout=0),
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'lo': netio(bytes_sent=2838627, bytes_recv=2838627, packets_sent=30567, packets_recv=30567, errin=0, errout=0, dropin=0, dropout=0)}
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>>>
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>>> psutil.net_connections()
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[pconn(fd=115, family=2, type=1, laddr=('10.0.0.1', 48776), raddr=('93.186.135.91', 80), status='ESTABLISHED', pid=1254),
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pconn(fd=117, family=2, type=1, laddr=('10.0.0.1', 43761), raddr=('72.14.234.100', 80), status='CLOSING', pid=2987),
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pconn(fd=-1, family=2, type=1, laddr=('10.0.0.1', 60759), raddr=('72.14.234.104', 80), status='ESTABLISHED', pid=None),
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pconn(fd=-1, family=2, type=1, laddr=('10.0.0.1', 51314), raddr=('72.14.234.83', 443), status='SYN_SENT', pid=None)
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...]
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Other system info
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=================
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.. code-block:: python
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>>> psutil.users()
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[user(name='giampaolo', terminal='pts/2', host='localhost', started=1340737536.0),
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user(name='giampaolo', terminal='pts/3', host='localhost', started=1340737792.0)]
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>>>
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>>> psutil.boot_time()
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1365519115.0
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>>>
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Process management
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==================
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.. code-block:: python
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>>> import psutil
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>>> psutil.pids()
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[1, 2, 3, 4, 5, 6, 7, 46, 48, 50, 51, 178, 182, 222, 223, 224,
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268, 1215, 1216, 1220, 1221, 1243, 1244, 1301, 1601, 2237, 2355,
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2637, 2774, 3932, 4176, 4177, 4185, 4187, 4189, 4225, 4243, 4245,
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4263, 4282, 4306, 4311, 4312, 4313, 4314, 4337, 4339, 4357, 4358,
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4363, 4383, 4395, 4408, 4433, 4443, 4445, 4446, 5167, 5234, 5235,
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5252, 5318, 5424, 5644, 6987, 7054, 7055, 7071]
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>>>
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>>> p = psutil.Process(7055)
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>>> p.name()
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'python'
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>>> p.exe()
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'/usr/bin/python'
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>>> p.cwd()
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'/home/giampaolo'
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>>> p.cmdline()
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['/usr/bin/python', 'main.py']
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>>>
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>>> p.status()
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'running'
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>>> p.username()
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'giampaolo'
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>>> p.create_time()
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1267551141.5019531
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>>> p.terminal()
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'/dev/pts/0'
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>>>
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>>> p.uids()
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puids(real=1000, effective=1000, saved=1000)
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>>> p.gids()
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pgids(real=1000, effective=1000, saved=1000)
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>>>
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>>> p.cpu_times()
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pcputimes(user=1.02, system=0.31)
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>>> p.cpu_percent(interval=1.0)
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12.1
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>>> p.cpu_affinity()
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[0, 1, 2, 3]
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>>> p.cpu_affinity([0]) # set
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>>>
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>>> p.memory_percent()
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0.63423
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>>>
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>>> p.memory_info()
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pmem(rss=7471104, vms=68513792)
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>>> p.ext_memory_info()
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extmem(rss=9662464, vms=49192960, shared=3612672, text=2564096, lib=0, data=5754880, dirty=0)
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>>> p.memory_maps()
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[pmmap_grouped(path='/lib/x86_64-linux-gnu/libutil-2.15.so', rss=16384, anonymous=8192, swap=0),
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pmmap_grouped(path='/lib/x86_64-linux-gnu/libc-2.15.so', rss=6384, anonymous=15, swap=0),
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pmmap_grouped(path='/lib/x86_64-linux-gnu/libcrypto.so.1.0.0', rss=34124, anonymous=1245, swap=0),
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pmmap_grouped(path='[heap]', rss=54653, anonymous=8192, swap=0),
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pmmap_grouped(path='[stack]', rss=1542, anonymous=166, swap=0),
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...]
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>>>
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>>> p.io_counters()
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pio(read_count=478001, write_count=59371, read_bytes=700416, write_bytes=69632)
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>>>
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>>> p.open_files()
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[popenfile(path='/home/giampaolo/svn/psutil/somefile', fd=3)]
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>>>
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>>> p.connections()
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[pconn(fd=115, family=2, type=1, laddr=('10.0.0.1', 48776), raddr=('93.186.135.91', 80), status='ESTABLISHED'),
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pconn(fd=117, family=2, type=1, laddr=('10.0.0.1', 43761), raddr=('72.14.234.100', 80), status='CLOSING'),
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pconn(fd=119, family=2, type=1, laddr=('10.0.0.1', 60759), raddr=('72.14.234.104', 80), status='ESTABLISHED'),
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pconn(fd=123, family=2, type=1, laddr=('10.0.0.1', 51314), raddr=('72.14.234.83', 443), status='SYN_SENT')]
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>>>
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>>> p.num_threads()
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4
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>>> p.num_fds()
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8
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>>> p.threads()
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[pthread(id=5234, user_time=22.5, system_time=9.2891),
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pthread(id=5235, user_time=0.0, system_time=0.0),
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pthread(id=5236, user_time=0.0, system_time=0.0),
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pthread(id=5237, user_time=0.0707, system_time=1.1)]
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>>>
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>>> p.num_ctx_switches()
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pctxsw(voluntary=78, involuntary=19)
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>>>
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>>> p.nice()
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0
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>>> p.nice(10) # set
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>>>
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>>> p.ionice(psutil.IOPRIO_CLASS_IDLE) # IO priority (Win and Linux only)
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>>> p.ionice()
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pionice(ioclass=3, value=0)
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>>>
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>>> p.rlimit(psutil.RLIMIT_NOFILE, (5, 5)) # set resource limits (Linux only)
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>>> p.rlimit(psutil.RLIMIT_NOFILE)
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(5, 5)
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>>>
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>>> p.suspend()
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>>> p.resume()
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>>>
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>>> p.terminate()
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>>> p.wait(timeout=3)
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0
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>>>
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>>> psutil.test()
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USER PID %CPU %MEM VSZ RSS TTY START TIME COMMAND
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root 1 0.0 0.0 24584 2240 Jun17 00:00 init
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root 2 0.0 0.0 0 0 Jun17 00:00 kthreadd
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root 3 0.0 0.0 0 0 Jun17 00:05 ksoftirqd/0
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...
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giampaolo 31475 0.0 0.0 20760 3024 /dev/pts/0 Jun19 00:00 python2.4
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giampaolo 31721 0.0 2.2 773060 181896 00:04 10:30 chrome
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root 31763 0.0 0.0 0 0 00:05 00:00 kworker/0:1
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>>>
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Further process APIs
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====================
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.. code-block:: python
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>>> for p in psutil.process_iter():
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... print(p)
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...
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psutil.Process(pid=1, name='init')
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psutil.Process(pid=2, name='kthreadd')
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psutil.Process(pid=3, name='ksoftirqd/0')
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...
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>>>
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>>> def on_terminate(proc):
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... print("process {} terminated".format(proc))
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...
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>>> # waits for multiple processes to terminate
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>>> gone, alive = psutil.wait_procs(procs_list, 3, callback=on_terminate)
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>>>
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======
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Donate
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======
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A lot of time and effort went into making psutil as it is right now.
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If you feel psutil is useful to you or your business and want to support its future development please consider donating me (`Giampaolo Rodola' <http://grodola.blogspot.com/p/about.html>`_) some money.
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I only ask for a small donation, but of course I appreciate any amount.
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.. image:: http://www.paypal.com/en_US/i/btn/x-click-but04.gif
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:target: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=A9ZS7PKKRM3S8
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:alt: Donate via PayPal
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Don't want to donate money? Then maybe you could `write me a recommendation on Linkedin <http://www.linkedin.com/in/grodola>`_.
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============
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Mailing list
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============
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http://groups.google.com/group/psutil/
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========
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Timeline
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========
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- 2014-09-26: `psutil-2.1.3.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-2.1.3.tar.gz>`_
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- 2014-09-21: `psutil-2.1.2.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-2.1.2.tar.gz>`_
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- 2014-04-30: `psutil-2.1.1.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-2.1.1.tar.gz>`_
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- 2014-04-08: `psutil-2.1.0.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-2.1.0.tar.gz>`_
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- 2014-03-10: `psutil-2.0.0.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-2.0.0.tar.gz>`_
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- 2013-11-25: `psutil-1.2.1.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-1.2.1.tar.gz>`_
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- 2013-11-20: `psutil-1.2.0.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-1.2.0.tar.gz>`_
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- 2013-11-07: `psutil-1.1.3.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-1.1.3.tar.gz>`_
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- 2013-10-22: `psutil-1.1.2.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-1.1.2.tar.gz>`_
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- 2013-10-08: `psutil-1.1.1.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-1.1.1.tar.gz>`_
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- 2013-09-28: `psutil-1.1.0.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-1.1.0.tar.gz>`_
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- 2013-07-12: `psutil-1.0.1.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-1.0.1.tar.gz>`_
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- 2013-07-10: `psutil-1.0.0.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-1.0.0.tar.gz>`_
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- 2013-05-03: `psutil-0.7.1.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.7.1.tar.gz>`_
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- 2013-04-12: `psutil-0.7.0.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.7.0.tar.gz>`_
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- 2012-08-16: `psutil-0.6.1.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.6.1.tar.gz>`_
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- 2012-08-13: `psutil-0.6.0.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.6.0.tar.gz>`_
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- 2012-06-29: `psutil-0.5.1.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.5.1.tar.gz>`_
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- 2012-06-27: `psutil-0.5.0.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.5.0.tar.gz>`_
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- 2011-12-14: `psutil-0.4.1.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.4.1.tar.gz>`_
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- 2011-10-29: `psutil-0.4.0.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.4.0.tar.gz>`_
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- 2011-07-08: `psutil-0.3.0.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.3.0.tar.gz>`_
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- 2011-03-20: `psutil-0.2.1.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.2.1.tar.gz>`_
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- 2010-11-13: `psutil-0.2.0.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.2.0.tar.gz>`_
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- 2010-03-02: `psutil-0.1.3.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.1.3.tar.gz>`_
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- 2009-05-06: `psutil-0.1.2.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.1.2.tar.gz>`_
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- 2009-03-06: `psutil-0.1.1.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.1.1.tar.gz>`_
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- 2009-01-27: `psutil-0.1.0.tar.gz <https://pypi.python.org/packages/source/p/psutil/psutil-0.1.0.tar.gz>`_
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