psutil获取系统信息

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发布于 2021-12-31 15:30:47

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发布于 2021-12-31 15:30:47

CPU

cpu_times CPU运行时间

psutil.cpu_times()

   scputimes(user=125.65, nice=20.8, system=243.42, idle=5515413.34, iowait=15.87, irq=0.0, softirq=45.79, steal=0.0, guest=0.0, guest_nice=0.0)

获取每个逻辑CPU的信息

psutil.cpu_times(percpu=True)

   scputimes(user=18.38, nice=1.51, system=95.18, idle=689387.87, iowait=1.96, irq=0.0, softirq=8.87, steal=0.0, guest=0.0, guest_nice=0.0), scputimes(user=9.84, nice=3.23, system=7.0, idle=689816.01, iowait=1.94, irq=0.0, softirq=1.85, steal=0.0, guest=0.0, guest_nice=0.0), scputimes(user=8.84, nice=1.94, system=6.57, idle=689669.6, iowait=1.7, irq=0.0, softirq=3.93, steal=0.0, guest=0.0, guest_nice=0.0), scputimes(user=4.52, nice=0.0, system=19.14, idle=689599.71, iowait=2.48, irq=0.0, softirq=4.34, steal=0.0, guest=0.0, guest_nice=0.0), scputimes(user=59.46, nice=2.18, system=60.39, idle=689222.57, iowait=2.21, irq=0.0, softirq=4.96, steal=0.0, guest=0.0, guest_nice=0.0), scputimes(user=7.16, nice=3.16, system=7.64, idle=689752.36, iowait=1.38, irq=0.0, softirq=1.74, steal=0.0, guest=0.0, guest_nice=0.0), scputimes(user=7.9, nice=5.46, system=37.03, idle=689078.94, iowait=2.8, irq=0.0, softirq=8.95, steal=0.0, guest=0.0, guest_nice=0.0), scputimes(user=9.52, nice=3.29, system=10.46, idle=689145.78, iowait=1.37, irq=0.0, softirq=11.13, steal=0.0, guest=0.0, guest_nice=0.0)

CPU运行状态	解释
user	进程执行用户代码耗费的时间
nice	在用县级高的用户级别执行时CPU占用率的百分比
system	内核执行系统调度所使用的时间
idle	CPU空闲且没有未完成磁盘io请求的时间的百分比
iowait	CPU等待io输入输出时间
irq	CPU用户维护硬件中断所花费的时间百分比
softirq	CPU用于维护软件中断所花费的时间百分比
steal	虚拟化环境中运行其他操作系统所花费的时间百分比
guest	CPU用于运行虚拟处理器的时间百分比
dpc	服务延迟过程调用所花费的时间
interrupt	服务硬件中断花费的时间

cpu_percent CPU利用率

psutil.cpu_percent()

10.1

psutil.cpu_percent(interval=1)

8.7

psutil.cpu_percent(interval=1,percpu=True)

   16.0, 13.1, 3.1, 6.9, 19.2, 4.1, 11.1, 10.1, 4.1, 4.1, 22.0, 17.2, 5.1, 39.0, 5.1, 6.0, 4.0, 3.1, 4.0, 5.0, 5.1, 15.0, 7.1, 20.2

cpu_times_percent 特定CPU状态的利用率

psutil.cpu_times_percent(interval=1 )

   scputimes(user=10.6, nice=0.0, system=2.0, idle=87.4, iowait=0.0, irq=0.0, softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0)

cpu_count cpu的数量

psutil.cpu_count()		# 逻辑cpu个数

psutil.cpu_count(logical=False)	# 物理cpu个数

len(psutil.Process().cpu_affinity())	# 当前可用cpu个数

cpu_stats cpu统计信息

psutil.cpu_stats()

   scpustats(ctx_switches=134328863006, interrupts=64447553228, soft_interrupts=37972326039, syscalls=0)

CPU信息	解释
ctx_switchese	启动后的上下文切换次数
interrupts	自引导以来的中断数
soft_interrupts	自引导以来的软件中断次数
syscalls	自引导以来的系统调用次数

cpu_freq CPU频率

min/max如果无法确认贼设置为0

psutil.cpu_freq()

   scpufreq(current=2776.311875000001, min=2200.0, max=3800.0)

内存

virtual_memory物理内存

psutil.virtual_memory()

   svmem(total=135165038592, available=117457821696, percent=13.1, used=16417964032, free=56929009664, active=59796267008, inactive=6194962432, buffers=1170616320, cached=60647448576, shared=37347328, slab=8931905536)

内存信息	解释
total	总物理内存
available	在没有系统进入swap下立即提供的内存
percent	使用内存占比
used	使用的物理内存
free	没有使用的物理内存
active	当前使用或最近使用的物理内存
inactive	标记未使用的内存
buffers	buffers使用的缓存
cached	cached使用的缓存
shared	显示被共享使用的物理内存
slab	内核数据结构缓存

swap_memory() 交换内存使用情况

psutil.swap_memory()

   sswap(total=4294963200, used=0, free=4294963200, percent=0.0, sin=0, sout=0)

磁盘

disk_partitions 获取所有磁盘信息

psutil.disk_partitions()

   sdiskpart(device='/dev/sda2', mountpoint='/', fstype='ext4', opts='rw,relatime,data=ordered'), sdiskpart(device='/dev/sda1', mountpoint='/boot/efi', fstype='vfat', opts='rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro'), sdiskpart(device='/dev/loop2', mountpoint='/snap/core/11743', fstype='squashfs', opts='ro,nodev,relatime'), sdiskpart(device='/dev/loop1', mountpoint='/snap/core/11798', fstype='squashfs', opts='ro,nodev,relatime')

disk_usage 获取单个磁盘信息

psutil.disk_usage('/dev/sda')

   sdiskusage(total=67510288384, used=0, free=67510288384, percent=0.0)
   disk_io_counters 获取io信息

disk_io_counters 获取io信息

psutil.disk_io_counters()

   sdiskio(read_count=30304, 	# 读取次数

       write_count=46146, 	# 写入次数

       read_bytes=762495488, # 读取字节数

       write_bytes=1490812928, 	# 写入字节数

       read_time=21036, 					# 读取时间

       write_time=56484, 				# 写入时间

       read_merged_count=5388, 	# 合并读取的次数

       write_merged_count=35669, # 合并写入的次数

       busy_time=17936						# 实际做io操作的时间

网络

net_connections 获取网络套接字

psutil.net_connections()

   sconn(fd=4, family=<AddressFamily.AF_INET6: 10>, type=<SocketKind.SOCK_STREAM: 1>, laddr=addr(ip='::', port=22), raddr=(), status='LISTEN', pid=1240), sconn(fd=12, family=<AddressFamily.AF_INET: 2>, type=<SocketKind.SOCK_DGRAM: 2>, laddr=addr(ip='127.0.0.53', port=53), raddr=(), status='NONE', pid=959), sconn(fd=3, family=<AddressFamily.AF_INET: 2>, type=<SocketKind.SOCK_STREAM: 1>, laddr=addr(ip='0.0.0.0', port=22), raddr=(), status='LISTEN', pid=1240), sconn(fd=6, family=<AddressFamily.AF_INET6: 10>, type=<SocketKind.SOCK_STREAM: 1>, laddr=addr(ip='::', port=6379), raddr=(), status='LISTEN', pid=1264), sconn(fd=7, family=<AddressFamily.AF_INET: 2>, type=<SocketKind.SOCK_STREAM: 1>, laddr=addr(ip='0.0.0.0', port=6379), raddr=(), status='LISTEN', pid=1264), sconn(fd=3, family=<AddressFamily.AF_INET: 2>, type=<SocketKind.SOCK_STREAM: 1>, laddr=addr(ip='10.122.1.77', port=22), raddr=addr(ip='10.122.2.5', port=26119), status='ESTABLISHED', pid=27261), sconn(fd=13, family=<AddressFamily.AF_INET: 2>, type=<SocketKind.SOCK_STREAM: 1>, laddr=addr(ip='127.0.0.53', port=53), raddr=(), status='LISTEN', pid=959), sconn(fd=36, family=<AddressFamily.AF_INET: 2>, type=<SocketKind.SOCK_STREAM: 1>, laddr=addr(ip='0.0.0.0', port=3306), raddr=(), status='LISTEN', pid=1472)

net_if_addrs 获取网卡的信息

psutil.net_if_addrs()

   {'lo': snicaddr(family=<AddressFamily.AF_INET: 2>, address='127.0.0.1', netmask='255.0.0.0', broadcast=None, 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_PACKET: 17>, address='00:00:00:00:00:00', netmask=None, broadcast=None, ptp=None), 'enp4s0': snicaddr(family=<AddressFamily.AF_INET: 2>, address='xxxxxx', netmask='xxxxx', broadcast='10.120.0.255', ptp=None), snicaddr(family=<AddressFamily.AF_INET6: 10>, address='fe80::aa5e:45ff:fee1:865c%enp4s0', netmask='ffff:ffff:ffff:ffff::', broadcast=None, ptp=None), snicaddr(family=<AddressFamily.AF_PACKET: 17>, address='a8:5e:45:e1:86:5c', netmask=None, broadcast='ff:ff:ff:ff:ff:ff', ptp=None)

net_if_stats 获取网络接口的状态

psutil.net_if_stats()

   {'lo': snicstats(isup=True, duplex=<NicDuplex.NIC_DUPLEX_UNKNOWN: 0>, speed=0, mtu=65536), 'ens33': snicstats(isup=True, duplex=<NicDuplex.NIC_DUPLEX_FULL: 2>, speed=1000, mtu=1500)}

net_io_counter 获取网口的流量

psutil.net_io_counters()

snetio(bytes_sent=32690381, # 发送字节

      bytes_recv=34820697, 	# 接收字节

      packets_sent=39503, 		# 发送包数

      packets_recv=74172, 		# 接收包数

      errin=0, 							# 接收错误数

      errout=0, 							# 发送错误数

      dropin=0, 							# 丢弃传入数据包数量

      dropout=0							# 丢弃传入数据包数量

其他

开机时间

   import datetime, psutil
   datetime.datetime.fromtimestamp(psutil.boot_time()).strftime("%Y-%m-%d %H:%M:%S")
   '2021-12-23 14:25:56'

获取当前用户

psutil.users()

   suser(name='xxx', terminal='tty1', host='', started=1640240768.0, pid=2254), suser(name='ipfsmain', terminal='pts/0', host='10.122.2.5', started=1640930560.0, pid=27171)

获取pid

psutil.pids()

   1, 2, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 30, 31, 32, 33, 34, 36, 37, 38, 39, 40, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 76, 77, 78, 122, 125, 128, 129, 130, 131, 132, 138, 147, 164, 239, 244, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 364, 365, 370, 371, 375, 377, 379, 450, 482, 501, 502, 531, 555, 582, 585, 592, 593, 594, 595, 596, 597, 607, 788, 789, 790, 791, 792, 793, 794, 795, 796, 797, 812, 850, 869, 870, 941, 959, 1049, 1055, 1062, 1068, 1075, 1094, 1191, 1225, 1229, 1240, 1264, 1299, 1303, 1369, 1472, 2226, 2232, 2254, 3111, 3247, 6954, 10977, 12254, 14051, 14144, 15117, 24202, 24203, 24204, 24205, 24206, 24207, 24208, 24209, 24210, 24211, 26176, 26565, 26669, 26836, 26957, 27171, 27261, 27264, 27669, 27670, 27671, 27745, 27759, 27760, 27762, 27764, 27769

获取进程信息

   for x in psutil.process_iter():
   	print(x)
   psutil.Process(pid=1, name='systemd', status='sleeping', started='2021-12-23 14:25:56')
   psutil.Process(pid=2, name='kthreadd', status='sleeping', started='2021-12-23 14:25:56')
   psutil.Process(pid=4, name='kworker/0:0H', status='idle', started='2021-12-23 14:25:56')
   psutil.Process(pid=6, name='mm_percpu_wq', status='idle', started='2021-12-23 14:25:56')
   psutil.Process(pid=7, name='ksoftirqd/0', status='sleeping', started='2021-12-23 14:25:56')
   psutil.Process(pid=8, name='rcu_sched', status='idle', started='2021-12-23 14:25:56')
   psutil.Process(pid=9, name='rcu_bh', status='idle', started='2021-12-23 14:25:56')
   psutil.Process(pid=10, name='migration/0', status='sleeping', started='2021-12-23 14:25:56')
   psutil.Process(pid=11, name='watchdog/0', status='sleeping', started='2021-12-23 14:25:56')
   psutil.Process(pid=12, name='cpuhp/0', status='sleeping', started='2021-12-23 14:25:56')
   psutil.Process(pid=13, name='cpuhp/1', status='sleeping', started='2021-12-23 14:25:56')
   psutil.Process(pid=14, name='watchdog/1', status='sleeping', started='2021-12-23 14:25:56')
   psutil.Process(pid=15, name='migration/1', status='sleeping', started='2021-12-23 14:25:56')
   psutil.Process(pid=16, name='ksoftirqd/1', status='sleeping', started='2021-12-23 14:25:56')

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