---
name: "cpuid_tool"
section: "3"
platform: "linux"
package: "libcpuid"
version: "0.8.2-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/cpuid_tool"
---

# cpuid\_tool(3)

Command line interface to libcpuid. Date Author This file is provides a direct interface to libcpuid. See the usage() function (or just run the program with the \`--help' switch) for a short command line options reference. This file has several purposes:

## NAME

cpuid\_tool - Command line interface to libcpuid.

**Date**

2008-11-19

**Author**

Veselin Georgiev

This file is provides a direct interface to libcpuid. See the usage() function (or just run the program with the \`--help' switch) for a short command line options reference.

This file has several purposes:

- 1\.

  When started with no arguments, the program outputs the RAW and decoded CPU data to files (raw.txt' and report.txt', respectively) - this is intended to be a dumb, doubleclicky tool for non-developer users, that can provide debug info about unrecognized processors to libcpuid developers.

- 2\.

  When operated from the terminal with the --report' option, it is a generic CPU-info utility.

- 3\.

  Can be used in shell scripts, e.g. to get the name of the CPU, cache sizes, features, with query options like --cache', \`--brandstr', etc.

- 4\.

  Finally, it serves to self-document libcpiud itself :)