freebsd-dev/usr.sbin/rtprio/rtprio.1

.\"
.\" Copyright (c) 1994, Henrik Vestergaard Draboel
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"	This product includes software developed by Henrik Vestergaard Draboel.
.\" 4. The name of the author may not be used to endorse or promote products
.\"    derived from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $FreeBSD$
.\"
.Dd July 23, 1994
.Dt RTPRIO 1
.Os
.Sh NAME
.Nm rtprio ,
.Nm idprio
.Nd execute, examine or modify a utility's or process's realtime
or idletime scheduling priority
.Sh SYNOPSIS
.Nm [id|rt]prio
.Nm [id|rt]prio
.Oo Fl Oc Ns Ar pid
.Nm [id|rt]prio
.Ar priority
.Ar command
.Op args
.Nm [id|rt]prio
.Ar priority
.Fl Ar pid
.Nm [id|rt]prio
.Fl t
.Ar command
.Op args
.Nm [id|rt]prio
.Fl t
.Fl Ar pid
.Sh DESCRIPTION
The
.Nm
utility is used for controlling realtime process scheduling.
.Pp
The
.Nm idprio
utility is used for controlling idletime process scheduling, and can be called
with the same options as
.Nm .
.Pp
A process with a realtime priority is not subject to priority
degradation, and will only be preempted by another process of equal or
higher realtime priority.
.Pp
A process with an idle priority will run only when no other
process is runnable and then only if its idle priority is equal or
greater than all other runnable idle priority processes.
.Pp
Both
.Nm
or
.Nm idprio
when called without arguments will return the realtime priority
of the current process.
.Pp
If
.Nm
is called with 1 argument, it will return the realtime priority
of the process with the specified
.Ar pid .
.Pp
If
.Ar priority
is specified, the process or program is run at that realtime priority.
If
.Fl t
is specified, the process or program is run as a normal (non-realtime)
process.
.Pp
If
.Ar -pid
is specified, the process with the process identifier
.Ar pid
will be modified, else if
.Ar command
is specified, that program is run with its arguments.
.Pp
.Ar Priority
is an integer between 0 and RTP_PRIO_MAX (usually 31). 0 is the
highest priority
.Pp
.Ar Pid
of 0 means "the current process".
.Pp
Only root is allowed to set realtime or idle priority for a process.
.Sh DIAGNOSTICS
If
.Nm
execute a command, the exit value is that of the command executed.
In all other cases,
.Nm
exits 0 on success, and 1 for all other errors.
.Sh EXAMPLES
To see which realtime priority the current process is at:
.Bd -literal -offset indent -compact
.Sy "rtprio"
.Ed
.Pp
To see which realtime priority of process
.Em 1423 :
.Bd -literal -offset indent -compact
.Sy "rtprio 1423"
.Ed
.Pp
To run
.Xr cron 8
at the lowest realtime priority:
.Bd -literal -offset indent -compact
.Sy "rtprio 31 cron"
.Ed
.Pp
To change the realtime priority of process
.Em 1423
to
.Em 16 :
.Bd -literal -offset indent -compact
.Sy "rtprio 16 -1423"
.Ed
.Pp
To run
.Xr tcpdump 1
without realtime priority:
.Bd -literal -offset indent -compact
.Sy "rtprio -t tcpdump"
.Ed
.Pp
To change the realtime priority of process
.Em 1423
to
.Dv RTP_PRIO_NORMAL
(non-realtime/normal priority):
.Bd -literal -offset indent -compact
.Sy "rtprio -t -1423"
.Ed
.Pp
To make depend while not disturbing other machine usage:
.Bd -literal -offset indent -compact
.Sy "idprio 31 make depend"
.Ed
.Sh SEE ALSO
.Xr nice 1 ,
.Xr ps 1 ,
.Xr rtprio 2 ,
.Xr setpriority 2 ,
.Xr nice 3 ,
.Xr renice 8
.Sh HISTORY
The
.Nm
utility appeared in
.Fx 2.0 ,
but is similar to the HP-UX version.
.Sh CAVEATS
You can lock yourself out of the system by placing a cpu-heavy
process in a realtime priority.
.Sh BUGS
There is no way to set/view the realtime priority of process 0
(swapper) (see
.Xr ps 1 ) .
.Pp
There is in
.Fx
no way to ensure that a process page is present in memory therefore
the process may be stopped for pagein (see
.Xr mprotect 2 ,
.Xr madvise 2 ) .
.Pp
Under
.Fx
system calls are currently never preempted, therefore non-realtime
processes can starve realtime processes, or idletime processes can
starve normal priority processes.
.Sh AUTHORS
.An -nosplit
.An Henrik Vestergaard Draboel Aq hvd@terry.ping.dk
is the original author.
This
implementation in
.Fx
was substantially rewritten by
.An David Greenman .
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.\"`
			`.\" Copyright (c) 1994, Henrik Vestergaard Draboel`
			`.\" All rights reserved.`
			`.\"`
			`.\" Redistribution and use in source and binary forms, with or without`
			`.\" modification, are permitted provided that the following conditions`
			`.\" are met:`
			`.\" 1. Redistributions of source code must retain the above copyright`
			`.\" notice, this list of conditions and the following disclaimer.`
			`.\" 2. Redistributions in binary form must reproduce the above copyright`
			`.\" notice, this list of conditions and the following disclaimer in the`
			`.\" documentation and/or other materials provided with the distribution.`
			`.\" 3. All advertising materials mentioning features or use of this software`
			`.\" must display the following acknowledgement:`
			`.\" This product includes software developed by Henrik Vestergaard Draboel.`
			`.\" 4. The name of the author may not be used to endorse or promote products`
			`.\" derived from this software without specific prior written permission.`
			`.\"`
			.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
			`.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE`
			`.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE`
			`.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE`
			`.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL`
			`.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS`
			`.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)`
			`.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT`
			`.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY`
			`.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF`
			`.\" SUCH DAMAGE.`
			`.\"`
$Id$ -> $FreeBSD$ 1999-08-28 01:35:59 +00:00			`.\" $FreeBSD$`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.\"`
			`.Dd July 23, 1994`
			`.Dt RTPRIO 1`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`.Os`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Sh NAME`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`.Nm rtprio ,`
			`.Nm idprio`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`.Nd execute, examine or modify a utility's or process's realtime`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`or idletime scheduling priority`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Sh SYNOPSIS`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`.Nm [id\|rt]prio`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`.Nm [id\|rt]prio`
mdoc(7) police: split punctuation characters + misc fixes. 2001-02-01 16:44:04 +00:00			`.Oo Fl Oc Ns Ar pid`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`.Nm [id\|rt]prio`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Ar priority`
			`.Ar command`
			`.Op args`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`.Nm [id\|rt]prio`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Ar priority`
mdoc(7) police: split punctuation characters + misc fixes. 2001-02-01 16:44:04 +00:00			`.Fl Ar pid`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`.Nm [id\|rt]prio`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Fl t`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Ar command`
			`.Op args`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`.Nm [id\|rt]prio`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Fl t`
mdoc(7) police: split punctuation characters + misc fixes. 2001-02-01 16:44:04 +00:00			`.Fl Ar pid`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Sh DESCRIPTION`
Use `The .Nm utility' 2002-04-20 12:27:18 +00:00			`The`
			`.Nm`
			`utility is used for controlling realtime process scheduling.`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
Use `The .Nm utility' 2002-04-20 12:27:18 +00:00			`The`
			`.Nm idprio`
			`utility is used for controlling idletime process scheduling, and can be called`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`with the same options as`
mdoc(7) police: use the new features of the Nm macro. 2000-11-20 20:10:44 +00:00			`.Nm .`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`A process with a realtime priority is not subject to priority`
			`degradation, and will only be preempted by another process of equal or`
			`higher realtime priority.`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`A process with an idle priority will run only when no other`
Fix a couple of stray apostrophes. 1997-12-28 20:52:56 +00:00			`process is runnable and then only if its idle priority is equal or`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`greater than all other runnable idle priority processes.`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
Use `The .Nm utility' 2002-04-20 12:27:18 +00:00			`Both`
			`.Nm`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`or`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`.Nm idprio`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`when called without arguments will return the realtime priority`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`of the current process.`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`If`
Use err(3). Sync usage string and man page. 1997-10-13 11:24:01 +00:00			`.Nm`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`is called with 1 argument, it will return the realtime priority`
			`of the process with the specified`
			`.Ar pid .`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`If`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Ar priority`
			`is specified, the process or program is run at that realtime priority.`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`If`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Fl t`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`is specified, the process or program is run as a normal (non-realtime)`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`process.`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`If`
			`.Ar -pid`
Use err(3). Sync usage string and man page. 1997-10-13 11:24:01 +00:00			`is specified, the process with the process identifier`
			`.Ar pid`
			`will be modified, else if`
Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00			`.Ar command`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`is specified, that program is run with its arguments.`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Ar Priority`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`is an integer between 0 and RTP_PRIO_MAX (usually 31). 0 is the`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`highest priority`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Ar Pid`
			`of 0 means "the current process".`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
Update man page to note that idleprio can't be used by normal users either. 1998-03-12 01:29:12 +00:00			`Only root is allowed to set realtime or idle priority for a process.`
Use DIAGNOSTICS instead of incorrect section name 1999-11-27 17:10:35 +00:00			`.Sh DIAGNOSTICS`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`If`
Use err(3). Sync usage string and man page. 1997-10-13 11:24:01 +00:00			`.Nm`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`execute a command, the exit value is that of the command executed.`
			`In all other cases,`
			`.Nm`
Use DIAGNOSTICS instead of incorrect section name 1999-11-27 17:10:35 +00:00			`exits 0 on success, and 1 for all other errors.`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Sh EXAMPLES`
			`To see which realtime priority the current process is at:`
			`.Bd -literal -offset indent -compact`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Sy "rtprio"`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Ed`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
			`To see which realtime priority of process`
			`.Em 1423 :`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Bd -literal -offset indent -compact`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Sy "rtprio 1423"`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Ed`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
			`To run`
			`.Xr cron 8`
			`at the lowest realtime priority:`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Bd -literal -offset indent -compact`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Sy "rtprio 31 cron"`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Ed`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
			`To change the realtime priority of process`
			`.Em 1423`
			`to`
			`.Em 16 :`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Bd -literal -offset indent -compact`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Sy "rtprio 16 -1423"`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Ed`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
			`To run`
Fix a bunch of broken cross-references 1999-08-18 05:55:22 +00:00			`.Xr tcpdump 1`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`without realtime priority:`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Bd -literal -offset indent -compact`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Sy "rtprio -t tcpdump"`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Ed`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
			`To change the realtime priority of process`
			`.Em 1423`
			`to`
			`.Dv RTP_PRIO_NORMAL`
Use err(3). Sync usage string and man page. 1997-10-13 11:24:01 +00:00			`(non-realtime/normal priority):`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Bd -literal -offset indent -compact`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Sy "rtprio -t -1423"`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Ed`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`To make depend while not disturbing other machine usage:`
			`.Bd -literal -offset indent -compact`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Sy "idprio 31 make depend"`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`.Ed`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Sh SEE ALSO`
			`.Xr nice 1 ,`
			`.Xr ps 1 ,`
Sort cross references. 1997-01-20 00:03:00 +00:00			`.Xr rtprio 2 ,`
Correct a bunch of man page cross references and generally try and silence "manck". ncurses, rpc, and some of the gnu stuff are still a big mess, however. 1996-02-11 22:38:05 +00:00			`.Xr setpriority 2 ,`
			`.Xr nice 3 ,`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Xr renice 8`
			`.Sh HISTORY`
			`The`
Use err(3). Sync usage string and man page. 1997-10-13 11:24:01 +00:00			`.Nm`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`utility appeared in`
Use the .Fx macro where appropriate. 1996-08-23 00:57:08 +00:00			`.Fx 2.0 ,`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`but is similar to the HP-UX version.`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`.Sh CAVEATS`
			`You can lock yourself out of the system by placing a cpu-heavy`
			`process in a realtime priority.`
rtprio(1) utility to modify realtime priority of a process. Submitted by: Henrik Vestergaard Draboel 1994-09-01 12:05:14 +00:00			`.Sh BUGS`
			`There is no way to set/view the realtime priority of process 0`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`(swapper) (see`
Oops, had a couple of extra parens in a couple of lines. 1997-03-07 07:45:17 +00:00			`.Xr ps 1 ) .`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`There is in`
Use Fx macro wherever possible. 2000-11-14 11:20:58 +00:00			`.Fx`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`no way to ensure that a process page is present in memory therefore`
Use err(3). Sync usage string and man page. 1997-10-13 11:24:01 +00:00			`the process may be stopped for pagein (see`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Xr mprotect 2 ,`
Oops, had a couple of extra parens in a couple of lines. 1997-03-07 07:45:17 +00:00			`.Xr madvise 2 ) .`
Clean this man page up. Don't use hardcoded font escape codes. Other mdoc cleanup. 1997-03-07 07:43:19 +00:00			`.Pp`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`Under`
Use Fx macro wherever possible. 2000-11-14 11:20:58 +00:00			`.Fx`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`system calls are currently never preempted, therefore non-realtime`
Fix a bunch of spelling errors in a bunch of man pages. 1996-01-30 13:52:50 +00:00			`processes can starve realtime processes, or idletime processes can`
"idle priority" support. Based on code from Henrik Vestergaard Draboel, but substantially rewritten by me. 1994-10-02 04:48:21 +00:00			`starve normal priority processes.`
.Sh AUTHOR -> .Sh AUTHORS. Use .An/.Aq. 1998-03-23 08:31:20 +00:00			`.Sh AUTHORS`
mdoc(7) police: do not split author names in the AUTHORS section. 2000-11-22 09:35:58 +00:00			`.An -nosplit`
Use err(3). Sync usage string and man page. 1997-10-13 11:24:01 +00:00			`.An Henrik Vestergaard Draboel Aq hvd@terry.ping.dk`
Remove single-space hard sentence breaks. These degrade the quality of the typeset output, tend to make diffs harder to read and provide bad examples for new-comers to mdoc. 2000-03-01 14:09:25 +00:00			`is the original author.`
			`This`
Use the .Fx macro where appropriate. 1996-08-23 00:57:08 +00:00			`implementation in`
Use Fx macro wherever possible. 2000-11-14 11:20:58 +00:00			`.Fx`
Use err(3). Sync usage string and man page. 1997-10-13 11:24:01 +00:00			`was substantially rewritten by`
			`.An David Greenman .`