linux 查看CPU 内存的信息

ECS信息

• 规格：2vCPUs | 4GiB | kc1.large.2
• 镜像：openEuler 20.03 64bit with ARM | 公共镜像

linux 查看CPU 内存 硬盘的信息

查看CPU的信息

# cat /proc/cpuinfo 
processor	: 0
BogoMIPS	: 200.00
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma dcpop asimddp asimdfhm
CPU implementer	: 0x48
CPU architecture: 8
CPU variant	: 0x1
CPU part	: 0xd01
CPU revision	: 0

processor	: 1
BogoMIPS	: 200.00
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma dcpop asimddp asimdfhm
CPU implementer	: 0x48
CPU architecture: 8
CPU variant	: 0x1
CPU part	: 0xd01
CPU revision	: 0

# lscpu -e
CPU NODE SOCKET CORE L1d:L1i:L2:L3 ONLINE    MAXMHZ    MINMHZ
  0    0      0    0 0:0:0:0          yes 2400.0000 2400.0000
  1    0      0    1 1:1:1:0          yes 2400.0000 2400.0000

# dmidecode -t processor
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.

Handle 0x0400, DMI type 4, 48 bytes
Processor Information
	Socket Designation: CPU 0
	Type: Central Processor
	Family: Other
	Manufacturer: QEMU
	ID: 00 00 00 00 00 00 00 00
	Version: 1.0
	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
	Serial Number: Not Specified
	Asset Tag: Not Specified
	Part Number: Not Specified
	Core Count: 2
	Core Enabled: 2
	Thread Count: 1
	Characteristics: None

# dmidecode -t 4
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.

Handle 0x0400, DMI type 4, 48 bytes
Processor Information
	Socket Designation: CPU 0
	Type: Central Processor
	Family: Other
	Manufacturer: QEMU
	ID: 00 00 00 00 00 00 00 00
	Version: 1.0
	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
	Serial Number: Not Specified
	Asset Tag: Not Specified
	Part Number: Not Specified
	Core Count: 2
	Core Enabled: 2
	Thread Count: 1
	Characteristics: None

查看内存的信息

# cat /proc/meminfo 
MemTotal:        3048896 kB
MemFree:         1862464 kB
MemAvailable:    2412352 kB
Buffers:           30208 kB
Cached:           829248 kB
SwapCached:            0 kB
Active:           414208 kB
Inactive:         646784 kB
Active(anon):     206656 kB
Inactive(anon):     8000 kB
Active(file):     207552 kB
Inactive(file):   638784 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:             0 kB
SwapFree:              0 kB
Dirty:              2048 kB
Writeback:             0 kB
AnonPages:        201536 kB
Mapped:           287040 kB
Shmem:             13120 kB
Slab:              56128 kB
SReclaimable:      26496 kB
SUnreclaim:        29632 kB
KernelStack:        9856 kB
PageTables:         9280 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     1524416 kB
Committed_AS:     654080 kB
VmallocTotal:   133009637312 kB
VmallocUsed:           0 kB
VmallocChunk:          0 kB
Percpu:             1024 kB
HardwareCorrupted:     0 kB
AnonHugePages:         0 kB
ShmemHugePages:        0 kB
ShmemPmdMapped:        0 kB
CmaTotal:         524288 kB
CmaFree:          523776 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:     524288 kB
Hugetlb:               0 kB

# free -h
              total        used        free      shared  buff/cache   available
Mem:          2.9Gi       293Mi       1.8Gi        12Mi       865Mi       2.3Gi
Swap:            0B          0B          0B

# dmidecode -t memory
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.

Handle 0x1000, DMI type 16, 23 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, 40 bytes
Memory Device
	Array Handle: 0x1000
	Error Information Handle: Not Provided
	Total Width: Unknown
	Data Width: Unknown
	Size: 4096 MB
	Form Factor: DIMM
	Set: None
	Locator: DIMM 0
	Bank Locator: Not Specified
	Type: RAM
	Type Detail: Other
	Speed: Unknown
	Manufacturer: QEMU
	Serial Number: Not Specified
	Asset Tag: Not Specified
	Part Number: Not Specified
	Rank: Unknown
	Configured Memory Speed: Unknown
	Minimum Voltage: Unknown
	Maximum Voltage: Unknown
	Configured Voltage: Unknown

帮助文档（部分）

# lscpu --help

Usage:
 lscpu [options]

Display information about the CPU architecture.

Options:
 -a, --all               print both online and offline CPUs (default for -e)
 -b, --online            print online CPUs only (default for -p)
 -B, --bytes             print sizes in bytes rather than in human readable format
 -C, --caches[=<list>]   info about caches in extended readable format
 -c, --offline           print offline CPUs only

......

# free --help

Usage:
 free [options]

Options:
 -b, --bytes         show output in bytes
     --kilo          show output in kilobytes
     --mega          show output in megabytes
     --giga          show output in gigabytes
     --tera          show output in terabytes
     --peta          show output in petabytes
 -k, --kibi          show output in kibibytes

......

# dmidecode --help
Usage: dmidecode [OPTIONS]
Options are:
 -d, --dev-mem FILE     Read memory from device FILE (default: /dev/mem)
 -h, --help             Display this help text and exit
 -q, --quiet            Less verbose output
 -s, --string KEYWORD   Only display the value of the given DMI string
 -t, --type TYPE        Only display the entries of given type
 -H, --handle HANDLE    Only display the entry of given handle
 -u, --dump             Do not decode the entries
     --dump-bin FILE    Dump the DMI data to a binary file
     --from-dump FILE   Read the DMI data from a binary file
     --no-sysfs         Do not attempt to read DMI data from sysfs files
     --compat-uuid      use compat uuid format with 2.6 SMBIOS specification
     --oem-string N     Only display the value of the given OEM string
 -V, --version          Display the version and exit

学习资料

• 弹性云服务器 ECS
• openEuler-官网
• openEuler-B站
• openEuler-慕课
• openEuler-文档
• 鲲鹏社区

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