Linux查看机器的配置信息
程序员文章站
2022-01-15 10:59:19
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- 查看内存信息
cat /proc/meminfo
[[email protected] ~]# cat /proc/meminfo
MemTotal: 98806896 kB
MemFree: 361144 kB
MemAvailable: 84982828 kB
Buffers: 16 kB
Cached: 82564292 kB
SwapCached: 344296 kB
Active: 52803312 kB
Inactive: 42283548 kB
Active(anon): 10701468 kB
Inactive(anon): 1934460 kB
Active(file): 42101844 kB
Inactive(file): 40349088 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 12582904 kB
SwapFree: 8850104 kB
Dirty: 52 kB
Writeback: 0 kB
AnonPages: 12189656 kB
Mapped: 24380 kB
Shmem: 113320 kB
Slab: 2606308 kB
SReclaimable: 2508600 kB
SUnreclaim: 97708 kB
KernelStack: 7312 kB
PageTables: 35004 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 61986352 kB
Committed_AS: 79488824 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 488288 kB
VmallocChunk: 34308113404 kB
HardwareCorrupted: 0 kB
AnonHugePages: 8826880 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 113660 kB
DirectMap2M: 5101568 kB
DirectMap1G: 97517568 kB
[[email protected] ~]#
- 核心数计算说明
总核数 = 物理CPU个数 X 每颗物理CPU的核数
总逻辑CPU数 = 物理CPU个数 X 每颗物理CPU的核数 X 超线程数
# 查看物理CPU个数
cat /proc/cpuinfo| grep "physical id"| sort| uniq| wc -l
[[email protected] ~]# cat /proc/cpuinfo| grep "physical id"| sort| uniq| wc -l
[[email protected] ~]#
# 查看每个物理CPU中core的个数(即核数)
cat /proc/cpuinfo| grep "cpu cores"| uniq
[[email protected] ~]# cat /proc/cpuinfo| grep "cpu cores"| uniq
cpu cores : 8
[[email protected] ~]#
# 查看逻辑CPU的个数
cat /proc/cpuinfo| grep "processor"| wc -l
[[email protected] ~]# cat /proc/cpuinfo| grep "processor"| wc -l
[[email protected] ~]#
- 查看CPU信息（型号）
# 查看CPU信息（型号）
cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
[[email protected] ~]# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
32 Intel(R) Xeon(R) CPU E5-2680 0 @ 2.70GHz
[[email protected] ~]#