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61 lines
1.3 KiB
Groff
61 lines
1.3 KiB
Groff
.\"-
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.\" * Copyright (c) 2023 Piotr Paweł Stefaniak
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.\"
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.\" * SPDX-License-Identifier: BSD-2-Clause
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.\"
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.Dd June 2, 2023
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.Dt NPROC 1
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.Os
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.Sh NAME
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.Nm nproc
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.Nd print the number of processors
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.Sh SYNOPSIS
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.Nm
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.Op Fl -all
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.Op Fl -ignore Ns = Ns Ar count
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.Nm Fl -help
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.Nm Fl -version
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.Sh DESCRIPTION
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The
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.Nm
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utility is used to print the number of processors limited to the
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.Xr cpuset 2
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of the current process, unless the
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.Fl -all
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flag is specified.
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.Pp
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The available flags are:
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.Bl -tag -width Ds
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.It Fl -all
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Count all processors currently online.
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.It Fl -ignore Ns = Ns Ar count
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The result is decreased by
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.Ar count ,
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but never below 1.
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.It Fl -version
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Print the current program version and exit.
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Do not use this option.
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.It Fl -help
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Print usage information and exit.
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.El
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.Sh COMPATIBILITY
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This program is intended to be compatible with nproc as found in GNU coreutils.
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.Sh BUGS
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If HyperThreading is enabled in BIOS and disabled in the kernel, the
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.Fl -all
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option on Linux will still report all possible CPU threads.
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On FreeBSD only active threads will be reported.
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.Sh SEE ALSO
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.Xr cpuset 1
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.Sh HISTORY
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The
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.Nm
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utility first appeared in
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.Fx 13.2 .
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.Sh AUTHORS
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.An -nosplit
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.An Mateusz Guzik Aq Mt mjg@FreeBSD.org
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wrote the program and
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.An Piotr Paweł Stefaniak Aq Mt pstef@FreeBSD.org
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wrote this page.
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