生当作开发,死亦为运维。
查看内存信息
执行如下命令:
输出如下:
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| # dmidecode 3.2 Getting SMBIOS data from sysfs. SMBIOS 2.8 present.
Handle 0x0044, DMI type 17, 40 bytes Memory Device Array Handle: 0x0043 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 8192 MB Form Factor: SODIMM Set: None Locator: ChannelA-DIMM0 Bank Locator: BANK 0 Type: DDR3 Type Detail: Synchronous Speed: 1600 MT/s Manufacturer: 0819 Serial Number: 1234567 Asset Tag: 9876543210 Part Number: 7654321 Rank: 2 Configured Memory Speed: 1600 MT/s Minimum Voltage: Unknown Maximum Voltage: Unknown Configured Voltage: Unknown
Handle 0x0045, DMI type 17, 40 bytes Memory Device Array Handle: 0x0043 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 8192 MB Form Factor: SODIMM Set: None Locator: ChannelB-DIMM0 Bank Locator: BANK 2 Type: DDR3 Type Detail: Synchronous Speed: 1600 MT/s Manufacturer: Kingston Serial Number: 1234567 Asset Tag: 9876543210 Part Number: 7654321 Rank: 2 Configured Memory Speed: 1600 MT/s Minimum Voltage: Unknown Maximum Voltage: Unknown Configured Voltage: Unknown
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从以上得到的信息可以看出,该命令能够得到诸如内存大小、内存速度、内存条数、内存代数、内存厂商等内存的详细信息。
查看显示器信息
安装 ddcutil
执行如下命令:
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| ddcutil detect --verbose
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输出类似如下:
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| Output level: Verbose Reporting DDC data errors: false Trace groups active: none Traced functions: none Traced files: none Force I2C slave address: false User defined features: disabled
Invalid display I2C bus: /dev/i2c-7 I2C address 0x50 (EDID) present: true Is eDP device: true /sys/bus/i2c/devices/i2c-7/name: DPDDC-A EDID synopsis: Mfg id: BOE Model: Serial number: Manufacture year: 2016 EDID version: 1.4 Product code: 1795 Extra descriptor: NV156FHM-N43 Video input definition: 0x95 - Digital Input (DisplayPort) Supported features: Digital display type: RGB 4:4:4 Standard sRGB color space: False White x,y: 0.312, 0.328 Red x,y: 0.652, 0.340 Green x,y: 0.316, 0.629 Blue x,y: 0.152, 0.063 Extension blocks: 0 EDID source: EDID hex dump: +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 09 e5 03 07 00 00 00 00 ................ +0010 01 1a 01 04 95 22 13 78 02 00 10 a7 57 51 a1 27 .....".x....WQ.' +0020 10 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 .PT............. +0030 01 01 01 01 01 01 96 37 80 a0 70 38 3c 40 30 20 .......7..p8<@0 +0040 36 00 58 c2 10 00 00 1a 00 00 00 00 00 00 00 00 6.X............. +0050 00 00 00 00 00 00 00 00 00 00 00 00 00 fe 00 42 ...............B +0060 4f 45 20 43 51 0a 20 20 20 20 20 20 00 00 00 fe OE CQ. .... +0070 00 4e 56 31 35 36 46 48 4d 2d 4e 34 33 0a 00 8d .NV156FHM-N43... DDC communication failed This is an eDP laptop display. Laptop displays do not support DDC/CI.
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从以上得到的信息可以看出,该命令能够得到诸如屏幕厂商(BOE)、屏幕型号(NV156FHM-N43)、屏幕生产年份等屏幕的详细信息。
查看 CPU 详细信息
执行如下命令:
输出如下:
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| Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 39 bits physical, 48 bits virtual CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 2 Core(s) per socket: 4 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 60 Model name: Intel(R) Core(TM) i7-4712MQ CPU @ 2.30GHz Stepping: 3 CPU MHz: 798.269 CPU max MHz: 3300.0000 CPU min MHz: 800.0000 BogoMIPS: 4589.31 Virtualization: VT-x L1d cache: 128 KiB L1i cache: 128 KiB L2 cache: 1 MiB L3 cache: 6 MiB NUMA node0 CPU(s): 0-7 Vulnerability Itlb multihit: KVM: Mitigation: Split huge pages Vulnerability L1tf: Mitigation; PTE Inversion; VMX conditional cache flushes, SMT vulnerable Vulnerability Mds: Mitigation; Clear CPU buffers; SMT vulnerable Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Retpolines, IBPB conditional, IBRS_FW, STIBP conditional, RSB filling Vulnerability Srbds: Mitigation; Microcode Vulnerability Tsx async abort: Not affected Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pe bs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe popcnt tsc_dea dline_timer aes xsave avx f16c rdrand lahf_lm abm cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 a vx2 smep bmi2 erms invpcid xsaveopt dtherm ida arat pln pts md_clear flush_l1d
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从以上得到的信息可以看出,该命令能够得到诸如CPU型号、CPU核心数、CPU当前运行速度、CPU睿频速度、三级缓存大小、指令集支持情况等CPU的详细信息。
查看网卡信息
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| *-network description: Ethernet interface product: RTL810xE PCI Express Fast Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:02:00.0 logical name: enp2s0 version: 07 serial: 00:f1:f5:19:e9:ce size: 100Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 duplex=full firmware=rtl8106e-1_0.0.1 06/29/12 ip=192.168.100.160 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s resources: irq:18 ioport:3000(size=256) memory:b0000000-b0000fff memory:d0000000-d0003fff
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