NAME

nproc — print the number of processors

SYNOPSIS

nproc [--all] [--ignore=count]

nproc --help

nproc --version

DESCRIPTION

The nproc utility is used to print the number of processors limited to the cpuset(2) of the current process, unless the --all flag is specified.

The available flags are:

--all: Count all processors currently online.
--ignore=count: The result is decreased by count, but never below 1.
--version: Print the current program version and exit. Do not use this option.
--help: Print usage information and exit.

COMPATIBILITY

This program is intended to be compatible with nproc as found in GNU coreutils.

BUGS

If HyperThreading is enabled in BIOS and disabled in the kernel, the --all option on Linux will still report all possible CPU threads. On FreeBSD only active threads will be reported.

HISTORY

The nproc utility first appeared in FreeBSD 13.2.

AUTHORS

Mateusz Guzik <mjg@FreeBSD.org> wrote the program and Piotr Paweł Stefaniak <pstef@FreeBSD.org> wrote this page.