diff options
author | mpp <mpp@FreeBSD.org> | 1997-03-07 07:43:19 +0000 |
---|---|---|
committer | mpp <mpp@FreeBSD.org> | 1997-03-07 07:43:19 +0000 |
commit | b8908061b9d2bd141efc7dc2b97bf0e82c9128a1 (patch) | |
tree | a10d05fdf24c7d15c9fadc3fb78932769993a075 /usr.sbin | |
parent | 7293d8e7d62cc304bd645cea07696ceb5cf71e41 (diff) | |
download | FreeBSD-src-b8908061b9d2bd141efc7dc2b97bf0e82c9128a1.zip FreeBSD-src-b8908061b9d2bd141efc7dc2b97bf0e82c9128a1.tar.gz |
Clean this man page up. Don't use hardcoded font escape codes.
Other mdoc cleanup.
Diffstat (limited to 'usr.sbin')
-rw-r--r-- | usr.sbin/rtprio/rtprio.1 | 97 |
1 files changed, 50 insertions, 47 deletions
diff --git a/usr.sbin/rtprio/rtprio.1 b/usr.sbin/rtprio/rtprio.1 index 3bb8091..a795877 100644 --- a/usr.sbin/rtprio/rtprio.1 +++ b/usr.sbin/rtprio/rtprio.1 @@ -28,7 +28,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.\" $Id$ +.\" $Id: rtprio.1,v 1.9 1997/02/22 16:13:06 peter Exp $ .\" .Dd July 23, 1994 .Dt RTPRIO 1 @@ -39,7 +39,6 @@ .Nd execute, examine or modify a utilitys or process realtime or idletime scheduling priority .Sh SYNOPSIS - .Nm [id|rt]prio .Nm [id|rt]prio .Ar pid @@ -51,63 +50,63 @@ or idletime scheduling priority .Ar priority .Ar -pid .Nm [id|rt]prio -.Ar -t +.Fl t .Ar command .Op args .Nm [id|rt]prio -.Ar -t +.Fl t .Ar -pid .Sh DESCRIPTION .Nm Rtprio is used for controlling realtime process scheduling. - +.Pp .Nm Idprio is used for controlling idletime process scheduling, and can be called with the same options as .Nm Rtprio . - +.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 it's idle priority is equal or greater than all other runnable idle priority processes. - +.Pp .Nm Rtprio or .Nm Idprio when called without arguments will return the realtime priority of the current process. - +.Pp If .Nm rtprio 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 -.Ar -t +.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 "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 priorities. Non-root processes may set idle priority levels for the current process only. .Sh RETURN VALUE @@ -118,48 +117,51 @@ In all other cases, .Nm exits with 0 for success and 1 for all other errors. .Sh EXAMPLES -.\LP - To see which realtime priority the current process is at: .Bd -literal -offset indent -compact -\fBrtprio\fP +.Sy "rtprio" .Ed - -.\.LP -To see which realtime priority of process \fI1423\fP: +.Pp +To see which realtime priority of process +.Em 1423 : .Bd -literal -offset indent -compact -\fBrtprio 1423\fP +.Sy "rtprio 1423" .Ed - -.\.LP -To run \fIcron\fP at the lowest realtime priority: +.Pp +To run +.Xr cron 8 +at the lowest realtime priority: .Bd -literal -offset indent -compact -\fBrtprio 31 cron\fP +.Sy "rtprio 31 cron" .Ed - -.\.LP -To change the realtime priority of process \fI1423\fP to \fI16\fP: +.Pp +To change the realtime priority of process +.Em 1423 +to +.Em 16 : .Bd -literal -offset indent -compact -\fBrtprio 16 -1423\fP +.Sy "rtprio 16 -1423" .Ed - -.\.LP -To run \fItcpdump\fP without realtime priority: +.Pp +To run +.Xr tcpdump 8 +without realtime priority: .Bd -literal -offset indent -compact -\fBrtprio -t tcpdump\fP +.Sy "rtprio -t tcpdump" .Ed - -.\.LP -To change the realtime priority of process \fI1423\fP to RTP_PRIO_NORMAL +.Pp +To change the realtime priority of process +.Em 1423 +to +.Dv RTP_PRIO_NORMAL (non-realtime/"normal" priority): .Bd -literal -offset indent -compact -\fBrtprio -t -1423\fP +.Sy "rtprio -t -1423" .Ed - -.\.LP +.Pp To make depend while not disturbing other machine usage: .Bd -literal -offset indent -compact -\fBidprio 31 make depend\fP +.Sy "idprio 31 make depend" .Ed .Sh SEE ALSO .Xr nice 1 , @@ -179,20 +181,21 @@ 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 ps(1)). - +(swapper) (see +.Xr ps 1 ) ) . +.Pp There is in .Tn FreeBSD no way to ensure that a process page is present in memory therefore -the process may be stopped for pagein. (See mprotect(2), madvise(2)). - +the process may be stopped for pagein. (See +.Xr mprotect 2 , +.Xr madvise 2 ) ) . +.Pp Under .Tn FreeBSD system calls are currently never preempted, therefore non-realtime processes can starve realtime processes, or idletime processes can starve normal priority processes. - -Others ... .Sh AUTHOR Henrik Vestergaard Draboel - hvd@terry.ping.dk is the original author. This implementation in |