cpuid
dump detailed x86/x64 processor information
TLDR
Display information for all CPUs
$ cpuid
Display information for current CPU only$ cpuid -1
Display raw hex information without decoding$ cpuid -r
Display information using the kernel CPUID module$ cpuid -k
Read CPUID data from a file$ cpuid -f [cpuid_dump.txt]
SYNOPSIS
cpuid [options]
DESCRIPTION
cpuid dumps detailed CPU information by executing the CPUID instruction and decoding the results. It displays processor identification, feature flags, cache information, and other CPU details.More detailed than /proc/cpuinfo, it shows low-level processor capabilities.
PARAMETERS
-1, --one-cpu
Display information for current CPU only-r, --raw
Show raw hex values without decoding-f, --file file
Read raw data from file instead of executing CPUID instruction-k, --kernel
Use the kernel CPUID module (/dev/cpu/*/cpuid); may require root-h, --help
Display help information-v, --version
Display cpuid version
INSTALL
sudo apt install cpuid
sudo dnf install cpuid
sudo zypper install cpuid
brew install cpuid
nix profile install nixpkgs#cpuid
CAVEATS
x86/x86_64 only. Some information may be virtualized when running in VMs. Output interpretation requires understanding of CPU architecture.
