### 查看硬件信息 ##### 查看CPU ###### lscpu命令 ```shell [root@tencentos ~]# lscpu Architecture: x86_64 #CPU架构及位数 CPU op-mode(s): 32-bit, 64-bit #CPU可以运行的操作系统位数 Byte Order: Little Endian #数据存储方式 CPU(s): 2 #系统有两个核心 On-line CPU(s) list: 0,1 #可用的CPU列表 Thread(s) per core: 1 #每个核心有1个线程 Core(s) per socket: 2 #每个插槽（物理CPU）有2个核心 Socket(s): 1 #有1个物理CPU NUMA node(s): 1 #有1个NUMA节点 Vendor ID: GenuineIntel #CPU的制造商是Intel BIOS Vendor ID: Smdbmds CPU family: 6 #CPU的家族编号是6 Model: 85 #CPU的型号编号是85 Model name: Intel(R) Xeon(R) Platinum 8255C CPU @ 2.50GHz #CPU的型号名称是Intel Xeon Platinum 8255C，主频为2.50GHz。 BIOS Model name: 3.0 Stepping: 5 #CPU的步进值是5，这是CPU版本的一种标识 CPU MHz: 2494.140 #CPU的实际运行速度是2494.140 MHz BogoMIPS: 4988.28 #BogoMIPS是一种测量CPU速度的方法，但并不总是准确的 Hypervisor vendor: KVM #虚拟化软件的供应商是KVM Virtualization type: full #支持全虚拟化 L1d cache: 32K #CPU的不同级别的缓存大小 L1i cache: 32K L2 cache: 4096K L3 cache: 36608K NUMA node0 CPU(s): 0,1 #NUMA节点0包含CPU 0和1。 Flags（这是CPU支持的各种特性和指令集）: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti fsgsbase bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 arat avx512_vnni ``` ###### /proc/cpuinfo ```shell [root@tencentos ~]# cat /proc/cpuinfo processor : 0 #处理器编号，这里有两个处理器，编号分别为0和1 vendor_id : GenuineIntel #CPU制造商，这里是GenuineIntel，表示是英特尔的CPU cpu family : 6 #CPU家族，这里是6，表示属于第6代CPU model : 85 #CPU型号，这里是85 model name : Intel(R) Xeon(R) Platinum 8255C CPU @ 2.50GHz stepping : 5 microcode : 0x1 cpu MHz : 2494.140 cache size : 36608 KB #CPU缓存大小，这里是36608 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti fsgsbase bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 arat avx512_vnni bugs（CPU的已知问题和漏洞） : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit bogomips : 4988.28 clflush size : 64 cache_alignment : 64 address sizes : 46 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 85 model name : Intel(R) Xeon(R) Platinum 8255C CPU @ 2.50GHz stepping : 5 microcode : 0x1 cpu MHz : 2494.140 cache size : 36608 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti fsgsbase bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 arat avx512_vnni bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit bogomips : 4988.28 clflush size : 64 cache_alignment : 64 address sizes : 46 bits physical, 48 bits virtual power management: [root@tencentos ~]# ``` ##### 查看内存 ###### free命令 ```shell [root@tencentos ~]# free -h total used free shared buff/cache available Mem: 1.7Gi 323Mi 341Mi 35Mi 1.0Gi 1.2Gi Swap: 0B 0B 0B ``` ###### /proc/meminfo ```shell [root@tencentos ~]# cat /proc/meminfo MemTotal: 1762908 kB MemFree: 353604 kB MemAvailable: 1229960 kB Buffers: 100912 kB Cached: 902816 kB SwapCached: 0 kB Active: 810564 kB Inactive: 425712 kB Active(anon): 235464 kB Inactive(anon): 32936 kB Active(file): 575100 kB Inactive(file): 392776 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 0 kB SwapFree: 0 kB Dirty: 188 kB Writeback: 0 kB AnonPages: 212480 kB Mapped: 121384 kB Shmem: 35860 kB KReclaimable: 78132 kB Slab: 130264 kB SReclaimable: 78132 kB SUnreclaim: 52132 kB KernelStack: 2784 kB PageTables: 6572 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 881452 kB Committed_AS: 1222084 kB VmallocTotal: 34359738367 kB VmallocUsed: 8032 kB VmallocChunk: 0 kB Percpu: 2320 kB HardwareCorrupted: 0 kB AnonHugePages: 118784 kB ShmemHugePages: 0 kB ShmemPmdMapped: 0 kB FileHugePages: 0 kB FilePmdMapped: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB Hugetlb: 0 kB DirectMap4k: 122744 kB DirectMap2M: 1974272 kB DirectMap1G: 0 kB ``` ##### 查看硬盘 ###### lsblk命令 ```shell [root@tencentos ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT vda 253:0 0 50G 0 disk └─vda1 253:1 0 50G 0 part / ``` ###### /proc/partitions ```shell [root@tencentos ~]# cat /proc/partitions major minor #blocks name 253 0 52428800 vda 253 1 52427759 vda1 ``` ###### blkid命令 ```shell [root@tencentos ~]# blkid /dev/vda1: UUID="ded6c45d-0699-43e5-bc44-f31c21449dcc" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="5f3d9d70-01" ```