psutil 2.2.1 : Python Package Index

浸心阁 2015-05-30

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psutil 2.2.1

psutil is a cross-platform library for retrieving information onrunning processes and system utilization (CPU, memory, disks, network)in Python.

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Summary

psutil (python system and process utilities) is a cross-platform library for
retrieving information on running processes and system utilization
(CPU, memory, disks, network) 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 command line
tools such as: ps, top, lsof, netstat, ifconfig, who, df, kill, free, nice,
ionice, iostat, iotop, uptime, pidof, tty, taskset, pmap. It currently supports
Linux, Windows, OSX, FreeBSD and Sun Solaris, both 32-bit and
64-bit architectures, with Python versions from 2.6 to 3.4 (users of
Python 2.4 and 2.5 may use 2.1.3 version).
PyPy is also known to work.

Example applications

Example usages

CPU

>>> 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
>>>

Memory

>>> psutil.virtual_memory()
svmem(total=8374149120L, available=2081050624L, percent=75.1, used=8074080256L, free=300068864L, active=3294920704, inactive=1361616896, buffers=529895424L, cached=1251086336)
>>> psutil.swap_memory()
sswap(total=2097147904L, used=296128512L, free=1801019392L, 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)
>>>
>>> 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)
>>>

Network

>>> 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()
[pconn(fd=115, family=2, type=1, laddr=('10.0.0.1', 48776), raddr=('93.186.135.91', 80), status='ESTABLISHED', pid=1254),
 pconn(fd=117, family=2, type=1, laddr=('10.0.0.1', 43761), raddr=('72.14.234.100', 80), status='CLOSING', pid=2987),
 pconn(fd=-1, family=2, type=1, laddr=('10.0.0.1', 60759), raddr=('72.14.234.104', 80), status='ESTABLISHED', pid=None),
 pconn(fd=-1, family=2, type=1, laddr=('10.0.0.1', 51314), raddr=('72.14.234.83', 443), status='SYN_SENT', pid=None)
 ...]

Other system info

>>> psutil.users()
[user(name='giampaolo', terminal='pts/2', host='localhost', started=1340737536.0),
 user(name='giampaolo', terminal='pts/3', host='localhost', started=1340737792.0)]
>>>
>>> psutil.boot_time()
1365519115.0
>>>

Process management

>>> 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.name()
'python'
>>> p.exe()
'/usr/bin/python'
>>> p.cwd()
'/home/giampaolo'
>>> p.cmdline()
['/usr/bin/python', 'main.py']
>>>
>>> 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)
>>> p.cpu_percent(interval=1.0)
12.1
>>> p.cpu_affinity()
[0, 1, 2, 3]
>>> p.cpu_affinity([0])  # set
>>>
>>> p.memory_percent()
0.63423
>>>
>>> p.memory_info()
pmem(rss=7471104, vms=68513792)
>>> p.memory_info_ex()
extmem(rss=9662464, vms=49192960, shared=3612672, text=2564096, lib=0, data=5754880, dirty=0)
>>> p.memory_maps()
[pmmap_grouped(path='/lib/x86_64-linux-gnu/libutil-2.15.so', rss=16384, anonymous=8192, swap=0),
 pmmap_grouped(path='/lib/x86_64-linux-gnu/libc-2.15.so', rss=6384, anonymous=15, swap=0),
 pmmap_grouped(path='/lib/x86_64-linux-gnu/libcrypto.so.1.0.0', rss=34124, anonymous=1245, swap=0),
 pmmap_grouped(path='[heap]', rss=54653, anonymous=8192, swap=0),
 pmmap_grouped(path='[stack]', rss=1542, anonymous=166, swap=0),
 ...]
>>>
>>> p.io_counters()
pio(read_count=478001, write_count=59371, read_bytes=700416, write_bytes=69632)
>>>
>>> p.open_files()
[popenfile(path='/home/giampaolo/svn/psutil/somefile', fd=3)]
>>>
>>> p.connections()
[pconn(fd=115, family=2, type=1, laddr=('10.0.0.1', 48776), raddr=('93.186.135.91', 80), status='ESTABLISHED'),
 pconn(fd=117, family=2, type=1, laddr=('10.0.0.1', 43761), raddr=('72.14.234.100', 80), status='CLOSING'),
 pconn(fd=119, family=2, type=1, laddr=('10.0.0.1', 60759), raddr=('72.14.234.104', 80), status='ESTABLISHED'),
 pconn(fd=123, family=2, type=1, laddr=('10.0.0.1', 51314), raddr=('72.14.234.83', 443), status='SYN_SENT')]
>>>
>>> p.num_threads()
4
>>> p.num_fds()
8
>>> p.threads()
[pthread(id=5234, user_time=22.5, system_time=9.2891),
 pthread(id=5235, user_time=0.0, system_time=0.0),
 pthread(id=5236, user_time=0.0, system_time=0.0),
 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=3, value=0)
>>>
>>> p.rlimit(psutil.RLIMIT_NOFILE, (5, 5))  # set resource limits (Linux only)
>>> p.rlimit(psutil.RLIMIT_NOFILE)
(5, 5)
>>>
>>> p.suspend()
>>> p.resume()
>>>
>>> p.terminate()
>>> 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
root           3  0.0  0.0       0       0            Jun17   00:05  ksoftirqd/0
...
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

>>> for p in psutil.process_iter():
...     print(p)
...
psutil.Process(pid=1, name='init')
psutil.Process(pid=2, name='kthreadd')
psutil.Process(pid=3, name='ksoftirqd/0')
...
>>>
>>> def on_terminate(proc):
...     print("process {} terminated".format(proc))
...
>>> # waits for multiple processes to terminate
>>> gone, alive = psutil.wait_procs(procs_list, 3, callback=on_terminate)
>>>

Donate

A lot of time and effort went into making psutil as it is right now.
If you feel psutil is useful to you or your business and want to support its future development please consider donating me (Giampaolo Rodola’) some money.
I only ask for a small donation, but of course I appreciate any amount.

Don’t want to donate money? Then maybe you could write me a recommendation on Linkedin.

Mailing list

http://groups.google.com/group/psutil/

Timeline

2015-01-06: psutil-2.2.0.tar.gz

2014-09-26: psutil-2.1.3.tar.gz

2014-09-21: psutil-2.1.2.tar.gz

2014-04-30: psutil-2.1.1.tar.gz

2014-04-08: psutil-2.1.0.tar.gz

2014-03-10: psutil-2.0.0.tar.gz

2013-11-25: psutil-1.2.1.tar.gz

2013-11-20: psutil-1.2.0.tar.gz

2013-11-07: psutil-1.1.3.tar.gz

2013-10-22: psutil-1.1.2.tar.gz

2013-10-08: psutil-1.1.1.tar.gz

2013-09-28: psutil-1.1.0.tar.gz

2013-07-12: psutil-1.0.1.tar.gz

2013-07-10: psutil-1.0.0.tar.gz

2013-05-03: psutil-0.7.1.tar.gz

2013-04-12: psutil-0.7.0.tar.gz

2012-08-16: psutil-0.6.1.tar.gz

2012-08-13: psutil-0.6.0.tar.gz

2012-06-29: psutil-0.5.1.tar.gz

2012-06-27: psutil-0.5.0.tar.gz

2011-12-14: psutil-0.4.1.tar.gz

2011-10-29: psutil-0.4.0.tar.gz

2011-07-08: psutil-0.3.0.tar.gz

2011-03-20: psutil-0.2.1.tar.gz

2010-11-13: psutil-0.2.0.tar.gz

2010-03-02: psutil-0.1.3.tar.gz

2009-05-06: psutil-0.1.2.tar.gz

2009-03-06: psutil-0.1.1.tar.gz

2009-01-27: psutil-0.1.0.tar.gz

File	Type	Py Version	Uploaded on	Size
psutil-2.2.1-cp26-none-win32.whl (md5)	Python Wheel	2.6	2015-02-02	80KB
psutil-2.2.1-cp27-none-win32.whl (md5)	Python Wheel	2.7	2015-02-02	79KB
psutil-2.2.1-cp27-none-win_amd64.whl (md5)	Python Wheel	2.7	2015-02-02	82KB
psutil-2.2.1-cp33-none-win32.whl (md5)	Python Wheel	3.3	2015-02-02	79KB
psutil-2.2.1-cp33-none-win_amd64.whl (md5)	Python Wheel	3.3	2015-02-02	82KB
psutil-2.2.1-cp34-none-win32.whl (md5)	Python Wheel	3.4	2015-02-02	79KB
psutil-2.2.1-cp34-none-win_amd64.whl (md5)	Python Wheel	3.4	2015-02-02	81KB
psutil-2.2.1.tar.gz (md5)	Source		2015-02-02	218KB
psutil-2.2.1.win-amd64-py2.7.exe (md5)	MS Windows installer	2.7	2015-02-02	310KB
psutil-2.2.1.win-amd64-py3.3.exe (md5)	MS Windows installer	3.3	2015-02-02	309KB
psutil-2.2.1.win-amd64-py3.4.exe (md5)	MS Windows installer	3.4	2015-02-02	308KB
psutil-2.2.1.win32-py2.6.exe (md5)	MS Windows installer	2.6	2015-02-02	281KB
psutil-2.2.1.win32-py2.7.exe (md5)	MS Windows installer	2.7	2015-02-02	281KB
psutil-2.2.1.win32-py3.3.exe (md5)	MS Windows installer	3.3	2015-02-02	276KB
psutil-2.2.1.win32-py3.4.exe (md5)	MS Windows installer	3.4	2015-02-02	276KB