Linux Server Specs View

Before the performance test, you need to determine the server specifications. Below is a summary of how to view Linux CPU and other specifications

1. View the number of server CPUs

1) View the number of physical CPUs:

Cat/proc/cpuinfo |grep "Physical id" |sort |uniq|wc-l

4

2) View each CPU with several cores

Cat/proc/cpuinfo |grep "Cores" |uniq

4

3) View the number of logical CPUs:

Cat/proc/cpuinfo |grep "Processor" |wc-l 16

I this server should have 4 physical CPUs, each physical CPU has 4 cores, does not support hyper-threading, so a total of 16 logical CPUs.

Description: Under Linux, the CPU hardware information is stored in the/proc/cpuinfo file. A physical CPU can have multiple cores (core), plus Hyper-Threading Technology (HT), which can logically have multiple CPUs. Do not turn on Hyper-Threading case: Number of logical CPUs = number of physical CPUs * number of cores. When Hyper-threading is turned on: number of logical CPUs = number of physical CPUs * Number of cores * *. Note: The CPU viewed with the top command under Linux is the number of logical CPUs.

To view CPU frequency:

Cat/proc/cpuinfo |grep Mhz|uniq

2. View Memory Specifications

[Email protected] logs]# free-m

Total used free shared buff/cache available

mem:32011 29460 2282 23 268 2117

swap:32767 7603 25164

Available memory =free+buff+cached =2282+268+2117=4667m=4.5g

Swap is a swap partition, typically large in memory and set when the OS is installed.

Linux Server Specs View