性能测试时一定要确定测试环境和的硬件配置、软件版本配置，保证和线上一致，才更接近真实环境。
那么linux下如何查看服务器的硬件配置信息？？
一、查看cpu信息
1、所有信息 lscpu
[root@redis02 ~]# lscpu
Architecture: x86_64 ##cpu架构
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 8 ##总共有8核
On-line CPU(s) list: 0-7
Thread(s) per core: 1 ##每个cpu核，只能支持一个线程，即不支持超线程
Core(s) per socket: 8 ##每个cpu，有8个核
Socket(s): 1 ##总共有1一个cpu
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 79
Model name: Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
Stepping: 1
CPU MHz: 2095.139
BogoMIPS: 4190.27
Hypervisor vendor: Microsoft
Virtualization type: full
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 20480K
NUMA node0 CPU(s): 0-7
2、查看逻辑cpu的数量
cat /proc/cpuinfo |grep "processor"|sort -u|wc -l
3、查看物理cpu的数量
grep "physical id" /proc/cpuinfo|sort -u|wc -l
4、查看每个物理cpu的内核数
grep "cpu cores" /proc/cpuinfo|uniq
5、每个物理CPU上逻辑CPU个数
grep "siblings" /proc/cpuinfo|uniq
6、判断是否开启了抄超线程：
如果多个逻辑CPU的"physical id"和"core id"均相同，说明开启了超线程
或者换句话说
逻辑CPU个数 > 物理CPU个数 * CPU内核数 开启了超线程
逻辑CPU个数 = 物理CPU个数 * CPU内核数 没有开启超线程
二、查看内存信息
1、free -m
[root@redis02 ~]# free -m
total used free shared buffers cached
Mem: 16071 8041 8029 0 143 6487
-/+ buffers/cache: 1411 14659
Swap: 8039 36 8003
2、查看内存详细信息 cat /proc/meminfo
[root@redis02 ~]# cat /proc/meminfo
MemTotal: 16456948 kB
MemFree: 8222176 kB
Buffers: 146532 kB
Cached: 6643084 kB
SwapCached: 3200 kB
Active: 6315476 kB
Inactive: 1478136 kB
Active(anon): 338812 kB
Inactive(anon): 665832 kB
Active(file): 5976664 kB
Inactive(file): 812304 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 8232956 kB
SwapFree: 8195644 kB
Dirty: 16 kB
Writeback: 0 kB
AnonPages: 1001364 kB
Mapped: 14560 kB
Shmem: 648 kB
Slab: 283984 kB
SReclaimable: 221920 kB
SUnreclaim: 62064 kB
KernelStack: 5472 kB
PageTables: 5952 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 16461428 kB
Committed_AS: 752588 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 65856 kB
VmallocChunk: 34359659968 kB
HardwareCorrupted: 0 kB
AnonHugePages: 962560 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 14272 kB
DirectMap2M: 16762880 kB
转载于:https://www.cnblogs.com/wuzm/p/11357894.html
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