View machine configuration information in Linux

# Cat/proc/cpuinfo

Processor starts counting from 0, flags if there is HT instructions and supports hyper-Threading Technology (appendix 1 ).

# Cat/proc/cpuinfo | grep name | cut-F2-D: | uniq-C
1 Intel (r) Pentium (r) Dual CPU e2180 @ 2.00 GHz

View CPU information. Here, only one logical CPU is displayed, and the model is e2180.

# Cat/proc/cpuinfo | grep processor | WC-l 
1

View the number of CPUs

# Cat/proc/cpuinfo | grep physical | uniq-C
# Getconf long_bit
32

It indicates that the current CPU runs in 32bit mode, but does not indicate that the CPU does not support 64bit

# Cat/proc/cpuinfo | grep flags | grep "lm" | WC-l
0

If the result is greater than 0, 64-bit computation is supported. lm indicates long mode, and Lm indicates 64-bit computation.

# Cat/proc/cpuinfo | grep-I "model name"
Model name: Intel (r) Pentium (r) Dual CPU e2180 @ 2.00 GHz

# Cat/proc/cpuinfo | grep-I "CPU cores"
# Cat/proc/cpuinfo | grep-I "cache size"
Cache size: 1024 KB

# Dmidecode | gerp "processor information"

View CPU Information

# Dmicode | grep CPU
# Dmidecode | grep proc

# Cat/proc/meminfo

View memory information

# Cat/proc/meminfo | grep-I memtotal
Memtotal: 1035292 KB

# Dmesg | grep HD

View hard disk Information

# Uname-

View the kernel of the current operating system

# Cat/etc/issue | grep Linux

View the release version of the current operating system

# Dmidecode | grep "product name"

View machine information

# Dmesg | grep-I ETH

View Nic Information

Appendix 1: hyper-threading
Hyper-Threading Technology uses special hardware commands to simulate two logic kernels inside a multi-threaded processor into two physical chips, so that a single processor can "enjoy" thread-Level Parallel Computing processor technology. Multithreading technology can effectively enhance the processing capability of the processor in multi-task and multi-thread processing on the operating systems and software supporting multithreading.