119 lines
3.4 KiB
Groff
119 lines
3.4 KiB
Groff
.\" $NetBSD: psrset.8,v 1.5 2008/09/23 10:09:56 rmind Exp $
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.\"
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.\" Copyright (c) 2008 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd September 23, 2008
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.Dt PSRSET 8
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.Os
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.Sh NAME
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.Nm psrset
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.Nd control processor sets
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.Sh SYNOPSIS
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.Nm
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.Op Ar setid ...
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.Nm
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.Fl a Ar setid Ar cpuid Ar ...
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.Nm
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.Fl b Ar setid Ar pid Ar ...
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.Nm
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.Fl c Op Ar cpuid Ar ...
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.Nm
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.Fl d Ar setid
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.Nm
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.Fl e Ar setid Ar command
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.Nm
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.Fl i Op Ar setid ...
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.Nm
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.Fl p
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.Nm
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.Fl r Ar cpuid Ar ...
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.Nm
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.Fl u Ar pid Ar ...
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.Sh DESCRIPTION
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The
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.Nm
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command can be used to control and inspect processor sets.
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.Pp
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The system always contains at least one processor set: the default
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set.
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The default set must contain at least one online processor (CPU) at
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all times.
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.Pp
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Available options:
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.Bl -tag -width indent
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.It Fl a
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Assign one or more processors (CPUs) to the set
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.Ar setid .
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In the current implementation, a CPU may only be present in one set.
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CPU IDs are as reported and used by the
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.Xr cpuctl 8
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command.
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.It Fl b
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Bind one or more processes to the set
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.Ar setid .
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All LWPs within the processes will be affected.
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Bindings are inherited when new LWPs or processes are forked.
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However, setting a new binding on a parent process does not affect the
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bindings of its existing child processes.
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.It Fl c
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Create a new processor set.
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If successful, the ID of the new set will be printed.
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If a list of CPU IDs is provided, those CPUs will be assigned to the set
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upon creation.
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Otherwise, the set will be created empty.
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.It Fl d
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Delete the processor set specified by
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.Ar setid .
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Any LWPs bound to the set will be re-bound to the default processor set.
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.It Fl e
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Execute a command within the processor set specified by
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.Ar setid .
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.It Fl i
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List all processor sets.
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For each set, print the member CPUs.
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If
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.Nm
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is run without any options, it behaves as if
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.Fl i
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were given.
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.It Fl p
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List all CPUs.
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For each CPU, print the associated processor set.
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.It Fl r
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Remove a CPU from its current set, and return it back to the default
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processor set.
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.It Fl u
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Bind the specified processes to the system default processor set.
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.El
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.Sh SEE ALSO
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.Xr pset 3 ,
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.Xr cpuctl 8 ,
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.Xr schedctl 8
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.Sh HISTORY
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The
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.Nm
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command first appeared in
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.Nx 5.0 .
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