Linux如何查看机器的配置信息

Linux如何查看机器的配置信息

1、查看内存信息

cat /proc/meminfo
[root@web ~]#  cat /proc/meminfo
MemTotal:        kB
MemFree:           kB
MemAvailable:    kB
Buffers:               kB
Cached:          kB
SwapCached:        kB
Active:          kB
Inactive:        kB
Active(anon):    kB
Inactive(anon):   kB
Active(file):    kB
Inactive(file):  kB
Unevictable:            kB
Mlocked:                kB
SwapTotal:       kB
SwapFree:         kB
Dirty:                 kB
Writeback:              kB
AnonPages:       kB
Mapped:             kB
Shmem:             kB
Slab:             kB
SReclaimable:     kB
SUnreclaim:         kB
KernelStack:         kB
PageTables:         kB
NFS_Unstable:           kB
Bounce:                 kB
WritebackTmp:           kB
CommitLimit:     kB
Committed_AS:    kB
VmallocTotal:    kB
VmallocUsed:       kB
VmallocChunk:    kB
HardwareCorrupted:      kB
AnonHugePages:    kB
HugePages_Total:
HugePages_Free:
HugePages_Rsvd:
HugePages_Surp:
Hugepagesize:        kB
DirectMap4k:       kB
DirectMap2M:      kB
DirectMap1G:     kB
[root@web ~]# 

二、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
[root@web ~]# cat /proc/cpuinfo| grep "physical id"| sort| uniq| wc -l

[root@web ~]#

# 查看每个物理CPU中core的个数(即核数)
cat /proc/cpuinfo| grep "cpu cores"| uniq
[root@web ~]# cat /proc/cpuinfo| grep "cpu cores"| uniq
cpu cores       :
[root@web ~]#

# 查看逻辑CPU的个数
cat /proc/cpuinfo| grep "processor"| wc -l
[root@web ~]# cat /proc/cpuinfo| grep "processor"| wc -l

[root@web ~]# 

三、查看CPU信息（型号）

# 查看CPU信息（型号）
cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
[root@web ~]# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
       Intel(R) Xeon(R) CPU E5-  @ .70GHz
[root@web ~]#