折腾：
期间，想要查看刚买到的腾讯云的香港节点的2C4G的服务器，CentOS系统，查看硬件配置信息，包括CPU，内存等。
crifan centos 配置信息
查看centos硬件配置 – lampsunny的专栏 – CSDN博客
<code>[root@VM_0_11_centos ~]# dmidecode # dmidecode 3.0 Getting SMBIOS data from sysfs. SMBIOS 2.4 present. 13 structures occupying 383 bytes. Table at 0x000FD890. Handle 0x0000, DMI type 0, 24 bytes BIOS Information Vendor: Bochs Version: Bochs Release Date: 01/01/2011 Address: 0xE8000 Runtime Size: 96 kB ROM Size: 64 kB Characteristics: BIOS characteristics not supported Targeted content distribution is supported BIOS Revision: 1.0 Handle 0x0100, DMI type 1, 27 bytes System Information Manufacturer: Bochs Product Name: Bochs Version: Not Specified Serial Number: 5906281d-94ae-432d-839a-d699e6ea898d UUID: 5906281D-94AE-432D-839A-D699E6EA898D Wake-up Type: Power Switch SKU Number: Not Specified Family: Not Specified Handle 0x0300, DMI type 3, 20 bytes Chassis Information Manufacturer: Bochs Type: Other Lock: Not Present Version: Not Specified Serial Number: Not Specified Asset Tag: Not Specified Boot-up State: Safe Power Supply State: Safe Thermal State: Safe Security Status: Unknown OEM Information: 0x00000000 Height: Unspecified Number Of Power Cords: Unspecified Handle 0x0401, DMI type 4, 32 bytes Processor Information Socket Designation: CPU 1 Type: Central Processor Family: Other Manufacturer: Bochs ID: F1 06 04 00 FF FB 8B 1F Version: Not Specified Voltage: Unknown External Clock: Unknown Max Speed: 2000 MHz Current Speed: 2000 MHz Status: Populated, Enabled Upgrade: Other L1 Cache Handle: Not Provided L2 Cache Handle: Not Provided L3 Cache Handle: Not Provided Handle 0x0402, DMI type 4, 32 bytes Processor Information Socket Designation: CPU 2 Type: Central Processor Family: Other Manufacturer: Bochs ID: F1 06 04 00 FF FB 8B 1F Version: Not Specified Voltage: Unknown External Clock: Unknown Max Speed: 2000 MHz Current Speed: 2000 MHz Status: Populated, Enabled Upgrade: Other L1 Cache Handle: Not Provided L2 Cache Handle: Not Provided L3 Cache Handle: Not Provided Handle 0x1000, DMI type 16, 15 bytes Physical Memory Array Location: Other Use: System Memory Error Correction Type: Multi-bit ECC Maximum Capacity: 4 GB Error Information Handle: Not Provided Number Of Devices: 1 Handle 0x1100, DMI type 17, 21 bytes Memory Device Array Handle: 0x1000 Error Information Handle: 0x0000 Total Width: 64 bits Data Width: 64 bits Size: 4096 MB Form Factor: DIMM Set: None Locator: DIMM 0 Bank Locator: Not Specified Type: RAM Type Detail: None Handle 0x1300, DMI type 19, 15 bytes Memory Array Mapped Address Starting Address: 0x00000000000 Ending Address: 0x000DFFFFFFF Range Size: 3584 MB Physical Array Handle: 0x1000 Partition Width: 1 Handle 0x1301, DMI type 19, 15 bytes Memory Array Mapped Address Starting Address: 0x00100000000 Ending Address: 0x0011FFFFFFF Range Size: 512 MB Physical Array Handle: 0x1000 Partition Width: 1 Handle 0x1400, DMI type 20, 19 bytes Memory Device Mapped Address Starting Address: 0x00000000000 Ending Address: 0x000DFFFFFFF Range Size: 3584 MB Physical Device Handle: 0x1100 Memory Array Mapped Address Handle: 0x1300 Partition Row Position: 1 Handle 0x1401, DMI type 20, 19 bytes Memory Device Mapped Address Starting Address: 0x00100000000 Ending Address: 0x0011FFFFFFF Range Size: 512 MB Physical Device Handle: 0x1100 Memory Array Mapped Address Handle: 0x1301 Partition Row Position: 1 Handle 0x2000, DMI type 32, 11 bytes System Boot Information Status: No errors detected Handle 0x7F00, DMI type 127, 4 bytes End Of Table </code>
期间：
以及：
<code>[root@VM_0_11_centos ~]# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 79 model name : Intel(R) Xeon(R) CPU E5-26xx v4 stepping : 1 microcode : 0x1 cpu MHz : 2394.454 cache size : 4096 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 lm constant_tsc rep_good nopl eagerfpu 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 bmi1 avx2 bmi2 rdseed adx xsaveopt bogomips : 4788.90 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 79 model name : Intel(R) Xeon(R) CPU E5-26xx v4 stepping : 1 microcode : 0x1 cpu MHz : 2394.454 cache size : 4096 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 lm constant_tsc rep_good nopl eagerfpu 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 bmi1 avx2 bmi2 rdseed adx xsaveopt bogomips : 4788.90 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: </code>
简化CPU信息：
<code>[root@VM_0_11_centos ~]# cat /proc/cpuinfo | grep processor processor : 0 processor : 1 </code>
CPU位数：
<code>[root@VM_0_11_centos ~]# getconf LONG_BIT 64 </code>
磁盘：
<code>[root@VM_0_11_centos ~]# fdisk -l Disk /dev/vda: 53.7 GB, 53687091200 bytes, 104857600 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk label type: dos Disk identifier: 0x000d64b4 Device Boot Start End Blocks Id System /dev/vda1 * 2048 104857599 52427776 83 Linux [root@VM_0_11_centos ~]# [root@VM_0_11_centos ~]# [root@VM_0_11_centos ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 50G 1.5G 46G 4% / devtmpfs 1.9G 0 1.9G 0% /dev tmpfs 1.9G 24K 1.9G 1% /dev/shm tmpfs 1.9G 444K 1.9G 1% /run tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup tmpfs 380M 0 380M 0% /run/user/0 [root@VM_0_11_centos ~]# cat /proc/partitions major minor #blocks name 253 0 52428800 vda 253 1 52427776 vda1 11 0 37888 sr0 </code>
【总结】
系统硬件信息总览：dmidecode
CPU部分：dmidecode | grep CPU
内存部分： 总容量=最大容 * 内存槽个数
最大容量：dmidecode | grep “Maximum Capacity”
内存槽个数：dmidecode | grep “Number Of Devices”
CPU
完整信息：cat /proc/cpuinfo
精简信息：cat /proc/cpuinfo | grep processor
内存
完整信息：cat /proc/meminfo
硬盘：
可用磁盘空间：df -h
磁盘信息空间大小：fdisk -l | grep GB
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