在实际工作中，我们的服务基本都是使用的linux，如果我们需要了解机器配置，几核几G的，CPU，内存，硬盘大小，应该怎么查看？在节前我们经常需要巡查下我们的机器内存、磁盘，CPU等情况，保证过节期间稳定运行，以下就是我在实际工作中遇到两台机器的配置，我们一起来看一下怎么查看吧

一、查看CPU

1、查看CPU是几核的（总核）

cat /proc/cpuinfo |grep ‘process’ |sort |uniq |wc -l

# 第1台：16核
[forlan@k8s-node1 ~]$ cat /proc/cpuinfo |grep 'process' |sort |uniq |wc -l
16# 第2台：4核
forlan@node22:[/home/forlan]cat /proc/cpuinfo |grep 'process' |sort |uniq |wc -l
4

2、查看CPU是几核的和型号

cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c

# 第1台：16核
[forlan@k8s-node1 ~]$ cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c16  Intel(R) Xeon(R) Platinum 8269CY CPU @ 2.50GHz# 第2台：4核
forlan@node22:[/home/forlan]cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c4  Intel(R) Xeon(R) Platinum 8163 CPU @ 2.50GHz

3、查看物理CPU数

cat /proc/cpuinfo |grep 'physical ’ |sort |uniq |wc -l

# 第1台CPU：1个
[forlan@k8s-node1 ~]$ cat /proc/cpuinfo |grep 'physical ' |sort |uniq |wc -l
1# 第2台CPU：1个
forlan@node22:[/home/forlan]cat /proc/cpuinfo |grep 'physical ' |sort |uniq |wc -l
1

4、查看CPU架构信息

lscpu

# 第1台CPU信息
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                16 #逻辑CPU数
On-line CPU(s) list:   0-15
Thread(s) per core:    2 #每个CPU核心支持多少线程，即超线程（几线程）
Core(s) per socket:    8 #每颗CPU多少核心（几核）
Socket(s):             1 #物理CPU数
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 85
Model name:            Intel(R) Xeon(R) Platinum 8269CY CPU @ 2.50GHz
Stepping:              7
CPU MHz:               2499.998
BogoMIPS:              4999.99
Hypervisor vendor:     KVM
Virtualization type:   full
L1d cache:             32K
L1i cache:             32K
L2 cache:              1024K
L3 cache:              36608K
NUMA node0 CPU(s):     0-15# 第2台CPU信息
Architecture:          x86_64 #架构
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                4 #逻辑CPU数
On-line CPU(s) list:   0-3
Thread(s) per core:    2 #每个CPU核心支持多少线程，即超线程，即超线程（几线程）
Core(s) per socket:    2 #每颗CPU多少核心数（几核）
Socket(s):             1 #物理CPU数
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 85
Model name:            Intel(R) Xeon(R) Platinum 8163 CPU @ 2.50GHz
Stepping:              4
CPU MHz:               2499.996
BogoMIPS:              4999.99
Hypervisor vendor:     KVM
Virtualization type:   full
L1d cache:             32K
L1i cache:             32K
L2 cache:              1024K
L3 cache:              33792K
NUMA node0 CPU(s):     0-3

说明：Thread(s) per core > Core(s) per socket，说明启用了超线程技术
在Java中总逻辑处理单元个数获取方法：Runtime.getRuntime().availableProcessors()

二、查看内存大小

1、cat /proc/meminfo | grep MemTotal

# 第1台：124GB
[forlan@k8s-node1 ~]$ cat /proc/meminfo | grep MemTotal
MemTotal:       129639140 kBforlan@node22:[/home/forlan]cat /proc/meminfo | grep MemTotal
MemTotal:       16266408 kB

2、free

默认查的单位是KB，-m表示查的单位是MB，-g表示查的单位是GB

# 第1台
[forlan@k8s-node1 ~]$ free -mtotal        used        free      shared  buff/cache   available
Mem:         126600       90149        2367          15       34083       35507
Swap:             0           0           0         0           0           0# 第2台
forlan@node22:[/home/forlan]free -mtotal        used        free      shared  buff/cache   available
Mem:          15885        6172        8013           1        1698        9380
Swap:

三、硬盘

df -lh

# 第1台硬盘使用情况
[forlan@k8s-node1 ~]$ df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs         62G     0   62G   0% /dev
tmpfs            62G     0   62G   0% /dev/shm
tmpfs            62G   14M   62G   1% /run
tmpfs            62G     0   62G   0% /sys/fs/cgroup
/dev/vda1       296G  161G  123G  57% /
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/38b66b7b5ae04a0af47798dbac92aca518de1c56abf4cdc1c6443dad3b1ba534/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/db3b2d4ce03c4599b990ac075d15d13718319b292400de4cbc751fe129c7fe1e/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/e0c268e0dee65e701e407e31e2b05389dd1e52cd530ea48b58bf60d1b93519d2/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/71f635119013d26b242fc811da6e1a917700a508f2f678dcc78bc560d0b7cf2b/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/a6acae376a0c696b4ebcf8ba606e618531a70ff0005bcc11e3ced660ae97f81e/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/cb80558a75249c6ebe21b8903a73c658999b302a6161a2370e5ac9c09349b25a/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/8b2d4a1f86d27b80f35e9db97052b240380a1c5b8dc2056b1542717c7313db35/shm
tmpfs            13G     0   13G   0% /run/user/0
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/bc1e0f3bb3867e123e34658577b616998674dcdf32b0a6bd59d89e805599f203/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/647df24efb08ac7cef4630acb6a30bcc9cbdc21a235a66063fb7588df489b869/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/82b58d8563a22d17e2661da26b7237e50efe7887cdc78368bb61af87aabec0af/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/3ba7313c0bebfab5b2cab063b7f792d76376d2151d89d28f24042deace33cc64/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/e3edb7eb332c6870e8e8a1db8e354933c31122e0ac6555a59c4a9b79fc2fa98b/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/760d8d81c4a1dd7bdaed0db437770fdc3296bcdc55804382102ec4573fd57095/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/3d1adb437c4ef23df2948e16db773b1d61adec6e9f7d39f8fb4ce3fc9a3f20c1/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/69055b4cc21eb5679bd4154d323b440bbf5345cb0bfd942713bf89098b03804d/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/2b7a158f297f596209531f64b577adcb95ef58e8712c8a3fe4d3d29728b5a5f6/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/0ad08685db2f9055b095dc38d581b044c4c68cc326fe88863d0bb3a5175c5b9a/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/e527bf78e06652b1377b3cdc3c66f2f3d326df376caa4be24f6cf2fe396f7a3c/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/f8747a4cb0642ca7658dbd7a6c1929c29db9447782633ba82bc1a590fac29a77/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/c732cfff6ba07276a80a0210879bd4443bc666286553cfea1d9d895448f736af/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/b7bac718b73906f2fc4b1df3c2fd3132de9f27610b0631e07e6a4b03566d0ed4/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/97303941b2c6227dde2769d65b50b05a322cbdbb9fc96a915318a762473bf107/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/8064fa8ff5ebfd50b2bba2064460d7dce819323c2952ac8554b0898f98bdeb3c/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/eb839fad33009b4bd5fe521851a595b1cb7e05b7a1127d57dbce9675c81b77f3/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/199ee421115cf6723d750b558fa2b2a0cc20e2e3a886fbe51735a4703facd313/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/3196fe7d3a23c79723b8369f111c810300653f97881b39bd1d7a4c141ede8ea8/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/0cd787746d8a8fe4062c114c688f43c42693eec6f67ac610122f3290b231deae/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/419616571e7ffa5d5c87daeacfa24b3fd2de0c5f77c81c25c9c026094523070b/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/2db72e0eaa544bbb5daec2d9bcc4188bc26d1c2e335c6f04db803ee341670d45/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/fe066e24157e6482f7425e32b10ae020bb1a68b3da1f5df006ebd88663bcadf8/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/f0f14e45cebe7daef7021e11cb4993c68b4f4e9c0314cc0be28a9fccee5d8c06/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/dcd045c18d30aadf377a1a31710d9d2e45de6ce22302ddb47af3182d7aa0447c/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/6d4a73dad84d31745d7e66ae7035b4ef2378fcbde762805d095e5c3c58f8f5d3/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/724820f6d3460a42f9682ebdeacc4199aa566e6729bbe69d28433e0546561671/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/42eeb8c9ac3772e3507366b9bc5f9245cf7f2e344b3534102811e8e9418c1db7/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/b30271842be68a933cfacd14b5cf29a2593b3db16dc68a362fc0b0c86408d68f/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/b964c8a9626437be5616ccb2800ac066190e6aea6b11abed02650c5a732261da/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/ba67c4486fad4648709266bbb7d2879dfe5443cccace572a03cbd76559a3ff9a/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/25157d8f943053e5862784c46bce22780950a4cfa4643454844fc02e13941133/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/8c9536f2326276819333f7655733e2c1afc84bce3869d944a0b3ee4f4fb79604/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/8d8357500581048d2520449aa0a12a0ec2d6ca580a114ef2f4038ed37c447c83/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/6ca98644138ee48960b7d3f44bc9bebc6a2bc171b9b834ad6632022e82fa903d/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/f56a55ec8239dc014d5aca7ebc167d1098dcaf84962a723064f31a8e83729698/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/7e7552c9f2e72b18c3828823e9b553d7dcfae650ca35186a771695e145aa5a92/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/527cb77f0a9a47c8886ab63e59d8e345a92613fb73d0121f471ac18e62f75e0d/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/f4d69832505bd78d3c5b55934d7dc3b8744e1ff4d3c8143df63219ca39e5b0ce/shm
shm              64M     0   64M   0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/68399ae439304d08119b14f9a2933a7c2d03d3cf117770cdca793d84ea634c5b/shm
tmpfs            13G     0   13G   0% /run/user/1000                                        13G     0   13G   0% /run/user/1000# 第2台硬盘使用情况
forlano@node22:[/home/forlan]df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/vda1       197G  129G   59G  69% /
devtmpfs        7.8G     0  7.8G   0% /dev
tmpfs           7.8G     0  7.8G   0% /dev/shm
tmpfs           7.8G  768K  7.8G   1% /run
tmpfs           7.8G     0  7.8G   0% /sys/fs/cgroup
tmpfs           1.6G     0  1.6G   0% /run/user/0
tmpfs           1.6G     0  1.6G   0% /run/user/1007
ossfs           256T     0  256T   0% /opt/ossbak/gitbackup