view docs/nitros9guide/setpr.refentry @ 3116:174eb9eda7b1

New port "mc09" for Multicomp09, an FPGA-based 6809 machine Include new commands/descriptor for mc09 clock and SD controller
author Neal Crook <foofoobedoo@gmail.com>
date Sat, 17 Oct 2015 21:21:11 +0100
parents 4dae346c4969
children
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<refentry id="setpr">
<refnamediv>
<refname>SETPR</refname>
<refpurpose>Set Process Priority</refpurpose>
</refnamediv>

<refsynopsisdiv>
<cmdsynopsis>
<command>setpr</command>
<arg choice="plain">
  <replaceable>procID</replaceable>
</arg>
<arg choice="plain">
  <replaceable>number</replaceable>
</arg>
</cmdsynopsis>
</refsynopsisdiv>

<refsect1><title>Description</title>
<para>
This command changes the CPU priority of a process. It may only be
used with a process having the user's ID. The process number is a
decimal number in the range of 1 (lowest) to 255. The <command>procs</command>
command can be used to obtain process ID numbers and present priority.
</para>
<para>
NOTE: This command does not appear in the <filename class="directory">CMDS</filename> directory as it is
built-in to the <command>shell</command>.
</para>
<para>
For more information see: <xref linkend="sec5.1"/>, <command>procs</command>
</para>
</refsect1>
<refsect1><title>Examples</title>
<literallayout>
setpr 8 250       (change process #8 priority to 250)
</literallayout>

<screen>
OS9: procs

User # Id pty  state   Mem Primary module
----- --- --- -------- --- --------------
    0   3   0 waiting    2 Shell &lt;TERM
    0   2   0 waiting    2 Shell &lt;TERM
    0   1   0 waiting    1 Sysgo &lt;TERM


OS9: setpr 3 128
OS9: procs

User # Id pty  state   Mem Primary module
----- --- --- -------- --- --------------
    0   3 128 active     2 Shell &lt;TERM
    0   2   0 waiting    2 Shell &lt;TERM
    0   1   0 waiting    1 Sysgo &lt;TERM
</screen>
</refsect1>
</refentry>