turbostat
Report CPU frequency, power, and idle statistics
TLDR
Display statistics every 5 seconds
$ sudo turbostat
Display statistics every specified amount of seconds$ sudo turbostat -i [n_seconds]
Display statistics without header information$ sudo turbostat --quiet
Display useful CPU information every second for specific CPUs$ sudo turbostat --quiet -i 1 --cpu 0-[CPU_count] --show "PkgWatt","Busy%","Core","CoreTmp"
SYNOPSIS
turbostat [options] [command...]
DESCRIPTION
turbostat reports processor topology, frequency, temperature, power consumption, and idle statistics for Intel and AMD processors. It reads hardware performance counters and model-specific registers.
The tool is valuable for understanding CPU behavior under load, identifying thermal throttling, and analyzing power consumption. It shows per-core and per-package statistics.
PARAMETERS
-i, --interval _seconds_
Sampling interval (default: 5 seconds)--quiet
Don't print system configuration header--cpu _list_
Specify which CPUs to monitor--show _columns_
Select columns to display--hide _columns_
Hide specified columns--out _file_
Write output to file--debug
Enable debug output
CAVEATS
Requires root privileges and access to MSR (Model Specific Registers). Works best on Intel processors; AMD support varies. Some features require specific CPU models. Part of the Linux kernel tools.