cpuinfo

A python tool to list cpu(s) information.

Features

• No 3rd party tools required
• Reads all information from virtual file systems /proc & /sys
• Produces a nice output formatted in yaml with almost all information found in all other tools in the market
• Numa information, including distances, memory usages per node and numa stats
• Better cpu flags description
• List of known Cpu Vulnerabilities with description
• Include current active CPU vulnerabilities (not found in any other tools)
• General Cpu characteristics
• Detailed and brief CPU cache memory information
• Detailed cpu cores information and which cpu(s) assigned to them taking into consideration hyperthreading

Installation

pip install git+https://github.com/Hamdy/cpuinfo

Usage

• cpuinfo
• Alternatively to get better colorful yaml experience in shell

  sudo snap install yq
  cpuinfo | yq
  

Motivation

Each tool in the market to list cpu information has some limitations and no one tool gives all information needed. cpuinfo tries to get the best out of all available tools in the market in one package that does not require any 3d party tools installation. Here's a summary for pros & cons for these tools

Comparison between tools that displayes CPU(s) information

/proc/cpuinfo

Pros	Cons
No 3rd party package is required	Difficut to understand
February	Does not show aggregated cpu frequency data
Contains some information that does not show elsewhere	Does not show aggregated cpu cache data
	Hard to understand how many cores per cpu especially if hyperthreading is enabled
	Some sections there lack proper description or verbose description to the items listed in them
	Lists a section per core and virtual core, so it's output is so long and repeated
	No NUMA info displayed

lscpu

Pros	Cons
Nice aggregated data	Might not exist by default in some systems
Nice output format	Not all info is displayed
Numa information is displayed	NUMA info is displayed in brief, just nodes and cpus
Aggregated cpu cache info is displayed
Displayes a nice summary of vulnerabilities in the cpu with explanation

dmidecode --type processor

Pros	Cons
Nice aggregated data	requires root privileges
Nice output format	Very limited info is displayed
Voltage value is displayed	No NUMA info displayed
CPU Flags have nice description that can not be found in other tools
Displayes a nice characteristics section that displays summary of cpu capabilities

numactl --hardware

Pros	Cons
Nice repesntation for NUMA info including disatances and memory information	Does not exsit by default, a 3rd party package must be installed
	Does not include any other cpu info

numastat

Pros	Cons
Displays Numa statistics like hits & misses	Does not exsit by default, package must be installed, a 3rd party package must be installed
	Does not include any other cpu info