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在linux中查询硬件相关信息
1、查询cpu的相关
a、查询CPU的统计信息
使用命令：lscpu
得到的结果如下：
Architecture: x86_64CPU op-mode(s): 32-bit, 64-bitByte Order: Little EndianCPU(s): 12On-line CPU(s) list: 0-11Thread(s) per core: 1Core(s) per socket: 6Socket(s): 2NUMA node(s): 2Vendor ID: GenuineIntelCPU family: 6Model: 62Stepping: 4CPU MHz: 2099.939BogoMIPS: 4199.44Virtualization: VT-xL1d cache: 32KL1i cache: 32KL2 cache: 256KL3 cache: 15360KNUMA node0 CPU(s): 0-5NUMA node1 CPU(s): 6-11
b、查询每个CPU信息
使用的命令：cat /proc/cpuinfo
得到如下结果：
processor : 0vendor_id : GenuineIntelcpu family : 6model : 62model name : Intel(R) Xeon(R) CPU E5-2620 v2 @ 2.10GHzstepping : 4cpu MHz : 2099.939cache size : 15360 KBphysical id : 0siblings : 6core id : 0cpu cores : 6apicid : 0initial apicid : 0fpu : yesfpu_exception : yescpuid level : 13wp : yesflags : 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 pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dts tpr_shadow vnmi flexpriority ept vpid fsgsbase smep ermsbogomips : 4199.87clflush size : 64cache_alignment : 64address sizes : 46 bits physical, 48 bits virtualpower management:processor : 1vendor_id : GenuineIntelcpu family : 6model : 62model name : Intel(R) Xeon(R) CPU E5-2620 v2 @ 2.10GHzstepping : 4cpu MHz : 2099.939cache size : 15360 KBphysical id : 0siblings : 6core id : 1cpu cores : 6apicid : 2initial apicid : 2fpu : yesfpu_exception : yescpuid level : 13wp : yesflags : 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 pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dts tpr_shadow vnmi flexpriority ept vpid fsgsbase smep ermsbogomips : 4199.87clflush size : 64cache_alignment : 64address sizes : 46 bits physical, 48 bits virtualpower management:processor : 2vendor_id : GenuineIntelcpu family : 6model : 62model name : Intel(R) Xeon(R) CPU E5-2620 v2 @ 2.10GHzstepping : 4cpu MHz : 2099.939cache size : 15360 KBphysical id : 0siblings : 6core id : 2cpu cores : 6apicid : 4initial apicid : 4fpu : yesfpu_exception : yescpuid level : 13wp : yesflags : 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 pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dts tpr_shadow vnmi flexpriority ept vpid fsgsbase smep ermsbogomips : 4199.87clflush size : 64cache_alignment : 64address sizes : 46 bits physical, 48 bits virtualpower management:
2、查询所有的pci设备信息（pci是一种总线，而通过pci总线连接的设备就是pci设备了，如今，我们常用的设备很多都采用pci总线了，如网卡存储等）
使用命令：lspci
得到结果：
0:00.0 Host bridge: Intel Corporation Xeon E5 v2/Core i7 DMI2 (rev 04)00:01.0 PCI bridge: Intel Corporation Xeon E5 v2/Core i7 PCI Express Root Port 1a (rev 04)00:01.1 PCI bridge: Intel Corporation Xeon E5 v2/Core i7 PCI Express Root Port 1b (rev 04)00:02.0 PCI bridge: Intel Corporation Xeon E5 v2/Core i7 PCI Express Root Port 2a (rev 04)00:03.0 PCI bridge: Intel Corporation Xeon E5 v2/Core i7 PCI Express Root Port 3a (rev 04)00:03.2 PCI bridge: Intel Corporation Xeon E5 v2/Core i7 PCI Express Root Port 3c (rev 04)00:04.0 System peripheral: Intel Corporation Xeon E5 v2/Core i7 Crystal Beach DMA Channel 0 (rev 04)00:04.1 System peripheral: Intel Corporation Xeon E5 v2/Core i7 Crystal Beach DMA Channel 1 (rev 04)00:04.2 System peripheral: Intel Corporation Xeon E5 v2/Core i7 Crystal Beach DMA Channel 2 (rev 04)00:04.3 System peripheral: Intel Corporation Xeon E5 v2/Core i7 Crystal Beach DMA Channel 3 (rev 04)00:04.4 System peripheral: Intel Corporation Xeon E5 v2/Core i7 Crystal Beach DMA Channel 4 (rev 04)00:04.5 System peripheral: Intel Corporation Xeon E5 v2/Core i7 Crystal Beach DMA Channel 5 (rev 04)00:04.6 System peripheral: Intel Corporation Xeon E5 v2/Core i7 Crystal Beach DMA Channel 6 (rev 04)00:04.7 System peripheral: Intel Corporation Xeon E5 v2/Core i7 Crystal Beach DMA Channel 7 (rev 04)00:05.0 System peripheral: Intel Corporation Xeon E5 v2/Core i7 VTd/Memory Map/Misc (rev 04)00:05.2 System peripheral: Intel Corporation Xeon E5 v2/Core i7 IIO RAS (rev 04)00:05.4 PIC: Intel Corporation Xeon E5 v2/Core i7 IOAPIC (rev 04)00:11.0 PCI bridge: Intel Corporation C600/X79 series chipset PCI Express Virtual Root Port (rev 06)00:16.0 Communication controller: Intel Corporation C600/X79 series chipset MEI Controller #1 (rev 05)00:16.1 Communication controller: Intel Corporation C600/X79 series chipset MEI Controller #2 (rev 05)00:1a.0 USB controller: Intel Corporation C600/X79 series chipset USB2 Enhanced Host Controller #2 (rev 06)00:1d.0 USB controller: Intel Corporation C600/X79 series chipset USB2 Enhanced Host Controller #1 (rev 06)00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a6)00:1f.0 ISA bridge: Intel Corporation C600/X79 series chipset LPC Controller (rev 06)00:1f.2 SATA controller: Intel Corporation C600/X79 series chipset 6-Port SATA AHCI Controller (rev 06)00:1f.3 SMBus: Intel Corporation C600/X79 series chipset SMBus Host Controller (rev 06)00:1f.6 Signal processing controller: Intel Corporation C600/X79 series chipset Thermal Management Controller (rev 06)02:00.0 Ethernet controller: Intel Corporation I350 Gigabit Network Connection (rev 01)02:00.1 Ethernet controller: Intel Corporation I350 Gigabit Network Connection (rev 01)06:00.0 Network controller: Mellanox Technologies MT27500 Family [ConnectX-3]08:04.0 VGA compatible controller: Matrox Electronics Systems Ltd. MGA G200eW WPCM450 (rev 0a)
如果要利用lscpi查询网卡型号可以使用命令：lspci |grep Ethernet
得到结果：
02:00.0 Ethernet controller: Intel Corporation I350 Gigabit Network Connection (rev 01)02:00.1 Ethernet controller: Intel Corporation I350 Gigabit Network Connection (rev 01)
3、查询内存相关信息
a、查看内存大小
使用命令：free
得到内存的一个整体信息如下：
total used free shared buffers cachedMem: 16364948 1623020 14741928 0 549616 291172-/+ buffers/cache: 782232 15582716Swap: 16383992 81560 16302432
b、查看详细信息
使用命令：cat /proc/meminfo
结果：
MemTotal: 16364948 kBMemFree: 14742988 kBBuffers: 549660 kBCached: 291340 kBSwapCached: 14724 kBActive: 241052 kBInactive: 646568 kBActive(anon): 32216 kBInactive(anon): 14800 kBActive(file): 208836 kBInactive(file): 631768 kBUnevictable: 0 kBMlocked: 0 kBSwapTotal: 16383992 kBSwapFree: 16302432 kBDirty: 0 kBWriteback: 0 kBAnonPages: 38996 kBMapped: 13080 kBShmem: 388 kBSlab: 340196 kBSReclaimable: 210436 kBSUnreclaim: 129760 kBKernelStack: 4744 kBPageTables: 12496 kBNFS_Unstable: 0 kBBounce: 0 kBWritebackTmp: 0 kBCommitLimit: 24566464 kBCommitted_AS: 553868 kBVmallocTotal: 34359738367 kBVmallocUsed: 429696 kBVmallocChunk: 34349265164 kBHardwareCorrupted: 0 kBAnonHugePages: 8192 kBHugePages_Total: 0HugePages_Free: 0HugePages_Rsvd: 0HugePages_Surp: 0Hugepagesize: 2048 kBDirectMap4k: 4868 kBDirectMap2M: 2058240 kBDirectMap1G: 14680064 kB
4、查看系统内核相关信息
使用命令：uname -a
结果：
Linux cn13 2.6.32-431.el6.x86_64 #1 SMP Sun Nov 10 22:19:54 EST 2013 x86_64 x86_64 x86_64 GNU/Linux
查看系统版本
使用命令：cat /etc/issue
结果：
Red Hat Enterprise Linux Server release 6.5 (Santiago)5、利用dmindecode查看硬件信息
查看服务器型号
dmidecode | grep ‘product name‘
查看主板序列号
dmidecode | grep ‘Serial Number‘
查看系统序列号
dmidecode -s systems-serial-number
查看内存信息
dmidecode -t memory
查看oem信息
dmidecode -t 11
**6、利用ibstat查看infiniband网卡的信息：
结果：
CA ‘mlx4_0‘ CA type: MT4099 Number of ports: 1 Firmware version: 2.30.8000 Hardware version: 0 Node GUID: 0x002590fffff7761c System image GUID: 0x002590fffff7761f Port 1: State: Active Physical state: LinkUp Rate: 40 Base lid: 85 LMC: 0 SM lid: 229 Capability mask: 0x02514868 Port GUID: 0x002590fffff7761d Link layer: InfiniBand
在linux中查询硬件相关信息
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