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linux怎么查看cpu个数

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linux怎么查看cpu个数

  关于笔记本电脑的硬件参数 ,我们要怎么在linux怎么查看cpu个数?下面是学习啦小编为你整理相关的内容,希望大家喜欢!

  linux查看cpu个数

  谈到系统版本就一定会想到uname,查看系统内核版本

  uname -参数

  其他的什么-n -m -r 参数都忽略,直接-a

  [root@linuxprobe ~]#uname -a

  Linux linuxprobe.com 2.6.32-358.el6.x86_64 #1 SMP Tue Jan 29 11:47:41 EST 2013 x86_64 x86_64 x86_64 GNU/Linux

  [root@linuxprobe ~]#

  从uname中貌似确实看到了许多信息,但是好像并不是我想要的,没有哪个系统的哪个版本

  lsb_release -a

  [root@linuxprobe ~]# lsb_release -a

  LSB Version: :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch

  Distributor ID: RedHatEnterpriseServer

  Description: Red Hat Enterprise Linux Server release 6.4 (Santiago)

  Release: 6.4

  Codename: Santiago

  [root@linuxprobe ~]#

  cat /etc/issue

  [root@linuxprobe ~]#cat /etc/issueRed Hat Enterprise Linux Server release 6.4 (Santiago)Kernel \r on an \m

  [root@linuxprobe ~]#

  查看内存相关

  free

  一谈到Linux的内存就想到了一个命令free,在课本第2章 新手必须掌握的Linux命令中有对此的解释

  [root@linuxprobe ~]# free total used free shared buffers cachedMem: 5228872 669360 4559512 0 28060 266936

  -/+ buffers/cache: 374364 4854508

  Swap: 4194296 0 4194296

  [root@linuxprobe ~]# free -m

  total used free shared buffers cached

  Mem: 5106 653 4452 0 27 260

  -/+ buffers/cache: 365 4740

  Swap: 4095 0 4095

  [root@linuxprobe ~]# free -g

  total used free shared buffers cached

  Mem: 4 0 4 0 0 0

  -/+ buffers/cache: 0 4

  Swap: 3 0 3

  [root@linuxprobe ~]#

  很明显内存大小,使用多少,剩余多少,buffers和cached多少,以及swap情况一目了然,使用参数-m/-g 可以指定单位

  查看cpu相关

  uptime

  [root@linuxprobe ~]# uptime

  20:09:48 up 43 min, 3 users, load average: 0.35, 0.25, 0.11 //系统的平均负载,1分钟,5分钟,15分钟

  top

  实时监控系统的cpu和内存,默认3s刷新一次

  [root@linuxprobe ~]# top

  top - 20:15:41 up 49 min, 3 users, load average: 0.41, 0.38, 0.21

  Tasks: 236 total, 1 running, 235 sleeping, 0 stopped, 0 zombieCpu(s): 0.2%us, 0.5%sy, 0.0%ni, 98.8%id, 0.5%wa, 0.0%hi, 0.0%si, 0.0%st

  Mem: 5228872k total, 671136k used, 4557736k free, 28324k buffers

  Swap: 4194296k total, 0k used, 4194296k free, 267360k cached

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND

  1 root 20 0 19360 1536 1224 S 0.0 0.0 0:05.37 init

  2 root 20 0 0 0 0 S 0.0 0.0 0:00.02 kthreadd

  3 root RT 0 0 0 0 S 0.0 0.0 0:00.07 migration/0

  4 root 20 0 0 0 0 S 0.0 0.0 0:00.14 ksoftirqd/0

  5 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0

  6 root RT 0 0 0 0 S 0.0 0.0 0:00.01 watchdog/0

  7 root RT 0 0 0 0 S 0.0 0.0 0:00.69 migration/1

  8 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/1

  9 root 20 0 0 0 0 S 0.0 0.0 0:00.10 ksoftirqd/1

  10 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/1

  11 root RT 0 0 0 0 S 0.0 0.0 0:00.10 migration/2

  12 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/2

  13 root 20 0 0 0 0 S 0.0 0.0 0:00.01 ksoftirqd/2

  14 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/2

  15 root RT 0 0 0 0 S 0.0 0.0 0:00.17 migration/3

  16 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/3

  17 root 20 0 0 0 0 S 0.0 0.0 0:00.06 ksoftirqd/3

  18 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/3

  19 root 20 0 0 0 0 S 0.0 0.0 0:00.41 events/0

  cpu内存实时利用率以此为标准

  查看cpu参数——文件 :/proc/cpuinfo

  [root@linuxprobe ~]# cat /proc/cpuinfo | grep "physical id" | uniq | wc -l

  2 //cpu个数

  [root@linuxprobe ~]# cat /proc/cpuinfo | grep "cpu cores" | uniq

  cpu cores : 2 //线程数

  [root@linuxprobe ~]# cat /proc/cpuinfo | grep 'model name' |uniq

  model name : Intel(R) Core(TM) i5-3230M CPU @ 2.60GHz //cpu型号参数

  查看硬盘相关

  df

  [root@linuxprobe ~]# df

  文件系统 1K-块 已用 可用 已用% 挂载点

  /dev/sda2 41284928 469040 38718736 2% /

  tmpfs 2614436 224 2614212 1% /dev/shm

  /dev/sda1 99150 32504 61526 35% /boot

  /dev/sda6 516040 18016 471812 4% /home

  /dev/sda3 4128448 2542976 1375760 65% /usr

  [root@linuxprobe ~]# df -h //以简单的看得懂的方式显示文件系统 容量 已用 可用 已用%% 挂载点

  /dev/sda2 40G 459M 37G 2% /

  tmpfs 2.5G 224K 2.5G 1% /dev/shm

  /dev/sda1 97M 32M 61M 35% /boot

  /dev/sda6 504M 18M 461M 4% /home

  /dev/sda3 4.0G 2.5G 1.4G 65% /usr

  fdisk -l

  [root@linuxprobe ~]# fdisk -lDisk /dev/sda: 107.4 GB, 107374182400 bytes255 heads, 63 sectors/track, 13054 cylinders

  Units = cylinders of 16065 * 512 = 8225280 bytes

  Sector size (logical/physical): 512 bytes / 512 bytes

  I/O size (minimum/optimal): 512 bytes / 512 bytes

  Disk identifier: 0x000f0739

  Device Boot Start End Blocks Id System

  /dev/sda1 * 1 13 102400 83 Linux

  Partition 1 does not end on cylinder boundary.

  /dev/sda2 13 5235 41943040 83 Linux

  /dev/sda3 5235 5757 4194304 83 Linux

  /dev/sda4 5757 13055 58616832 5 Extended

  /dev/sda5 5757 6280 4194304 82 Linux swap / Solaris

  /dev/sda6 6280 6345 524288 83 Linux

  [root@linuxprobe ~]# fdisk -l | grep Disk

  Disk /dev/sda: 107.4 GB, 107374182400 bytes

  Disk identifier: 0x000f0739

  [root@linuxprobe ~]#

3626791