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Archive obtained from https://psutil.googlecode.com/files/psutil-1.0.1.tar.gz and extracted over existing source code without modifications.
218 lines
6.5 KiB
Plaintext
218 lines
6.5 KiB
Plaintext
===========
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Quick links
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===========
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* `Home page <http://code.google.com/p/psutil>`_
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* `Download <http://code.google.com/p/psutil/downloads/list>`_
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* `Documentation <http://code.google.com/p/psutil/wiki/Documentation>`_
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=======
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Summary
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=======
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psutil is a module providing an interface for retrieving information on all
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running processes and system utilization (CPU, memory, disks, network, users) in
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a portable way by using Python, implementing many functionalities offered by
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command line tools such as: **ps, top, df, kill, free, lsof, free, netstat,
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ifconfig, nice, ionice, iostat, iotop, uptime, pidof, tty, who, taskset, pmap**.
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It currently supports **Linux**, **Windows**, **OSX**, **FreeBSD**,
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**Sun Solaris** both **32-bit** and **64-bit** with Python versions from **2.4**
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to **3.3** by using a single code base.
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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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>>> import psutil
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>>> psutil.cpu_times()
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cputimes(user=3961.46, nice=169.729, system=2150.659, idle=16900.540,
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iowait=629.509, irq=0.0, softirq=19.422, 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]
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[7.0, 8.5]
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[1.2, 9.0]
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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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cpupercent(user=1.5, nice=0.0, system=0.5, idle=96.5, iowait=1.5, irq=0.0,
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softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0)
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cpupercent(user=1.0, nice=0.0, system=0.0, idle=99.0, iowait=0.0, irq=0.0,
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softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0)
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cpupercent(user=2.0, nice=0.0, system=0.0, idle=98.0, iowait=0.0, irq=0.0,
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softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0)
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Memory
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======
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>>> psutil.virtual_memory()
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vmem(total=8374149120L, available=2081050624L, percent=75.1, used=8074080256L,
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free=300068864L, active=3294920704, inactive=1361616896, buffers=529895424L,
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cached=1251086336)
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>>> psutil.swap_memory()
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swap(total=2097147904L, used=296128512L, free=1801019392L, percent=14.1,
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sin=304193536, sout=677842944)
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>>>
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Disks
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=====
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>>> psutil.disk_partitions()
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[partition(device='/dev/sda1', mountpoint='/', fstype='ext4', opts='rw,nosuid'),
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partition(device='/dev/sda2', mountpoint='/home', fstype='ext, opts='rw')]
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>>>
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>>> psutil.disk_usage('/')
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usage(total=21378641920, used=4809781248, free=15482871808, percent=22.5)
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>>>
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>>> psutil.disk_io_counters()
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iostat(read_count=719566, write_count=1082197, read_bytes=18626220032,
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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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>>> psutil.net_io_counters(pernic=True)
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{'lo': iostat(bytes_sent=799953745, bytes_recv=799953745,
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packets_sent=453698, packets_recv=453698),
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'eth0': iostat(bytes_sent=734324837, bytes_recv=4163935363,
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packets_sent=3605828, packets_recv=4096685)}
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>>>
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Other system info
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=================
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>>> psutil.get_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.get_boot_time()
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1365519115.0
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Process management
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==================
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>>> import psutil
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>>> psutil.get_pid_list()
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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.getcwd()
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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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>>> str(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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user(real=1000, effective=1000, saved=1000)
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>>> p.gids
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group(real=1000, effective=1000, saved=1000)
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>>>
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>>> p.get_cpu_times()
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cputimes(user=1.02, system=0.31)
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>>> p.get_cpu_percent(interval=1.0)
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12.1
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>>> p.get_cpu_affinity()
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[0, 1, 2, 3]
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>>> p.set_cpu_affinity([0])
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>>>
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>>> p.get_memory_percent()
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0.63423
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>>>
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>>> p.get_memory_info()
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meminfo(rss=7471104, vms=68513792)
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>>> p.get_ext_memory_info()
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meminfo(rss=9662464, vms=49192960, shared=3612672, text=2564096, lib=0, data=5754880, dirty=0)
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>>> p.get_memory_maps()
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[mmap(path='/lib/x86_64-linux-gnu/libutil-2.15.so', rss=16384, anonymous=8192, swap=0),
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mmap(path='/lib/x86_64-linux-gnu/libc-2.15.so', rss=6384, anonymous=15, swap=0),
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mmap(path='/lib/x86_64-linux-gnu/libcrypto.so.1.0.0', rss=34124, anonymous=1245, swap=0),
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mmap(path='[heap]', rss=54653, anonymous=8192, swap=0),
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mmap(path='[stack]', rss=1542, anonymous=166, swap=0),
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...]
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>>>
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>>> p.get_io_counters()
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io(read_count=478001, write_count=59371, read_bytes=700416, write_bytes=69632)
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>>>
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>>> p.get_open_files()
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[openfile(path='/home/giampaolo/svn/psutil/somefile', fd=3)]
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>>>
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>>> p.get_connections()
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[connection(fd=115, family=2, type=1, laddr=('10.0.0.1', 48776),
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raddr=('93.186.135.91', 80), status='ESTABLISHED'),
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connection(fd=117, family=2, type=1, laddr=('10.0.0.1', 43761),
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raddr=('72.14.234.100', 80), status='CLOSING'),
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connection(fd=119, family=2, type=1, laddr=('10.0.0.1', 60759),
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raddr=('72.14.234.104', 80), status='ESTABLISHED'),
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connection(fd=123, family=2, type=1, laddr=('10.0.0.1', 51314),
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raddr=('72.14.234.83', 443), status='SYN_SENT')]
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>>>
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>>> p.get_num_threads()
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4
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>>> p.get_num_fds()
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8
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>>> p.get_threads()
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[thread(id=5234, user_time=22.5, system_time=9.2891),
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thread(id=5235, user_time=0.0, system_time=0.0),
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thread(id=5236, user_time=0.0, system_time=0.0),
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thread(id=5237, user_time=0.0707, system_time=1.1)]
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>>>
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>>> p.get_num_ctx_switches()
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amount(voluntary=78, involuntary=19)
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>>>
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>>> p.get_nice()
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0
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>>> p.set_nice(10)
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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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