171 lines
4.2 KiB
HTML
171 lines
4.2 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of RENICE</TITLE>
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</HEAD><BODY>
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<H1>RENICE</H1>
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Section: User Commands (1)<BR>Updated: July 2014<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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renice - alter priority of running processes
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>renice</B>
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[<B>-n</B>]
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<I>priority</I>
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[<B>-g</B>|<B>-p</B>|<B>-u</B>]
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<I>identifier</I>...
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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<B>renice</B>
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alters the scheduling priority of one or more running processes. The
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first argument is the <I>priority</I> value to be used.
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The other arguments are interpreted as process IDs (by default),
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process group IDs, user IDs, or user names.
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<B>renice</B>'ing
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a process group causes all processes in the process group to have their
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scheduling priority altered.
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<B>renice</B>'ing
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a user causes all processes owned by the user to have their scheduling
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priority altered.
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<P>
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<A NAME="lbAE"> </A>
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<H2>OPTIONS</H2>
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<DL COMPACT>
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<DT id="1"><B>-n</B>,<B> --priority </B><I>priority</I>
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<DD>
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Specify the scheduling
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<I>priority</I>
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to be used for the process, process group, or user. Use of the option
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<B>-n</B> or <B>--priority</B>
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is optional, but when used it must be the first argument.
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<DT id="2"><B>-g</B>,<B> --pgrp</B>
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<DD>
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Interpret the succeeding arguments as process group IDs.
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<DT id="3"><B>-p</B>,<B> --pid</B>
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<DD>
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Interpret the succeeding arguments as process IDs
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(the default).
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<DT id="4"><B>-u</B>,<B> --user</B>
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<DD>
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Interpret the succeeding arguments as usernames or UIDs.
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<DT id="5"><B>-V</B>,<B> --version</B>
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<DD>
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Display version information and exit.
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<DT id="6"><B>-h</B>,<B> --help</B>
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<DD>
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Display help text and exit.
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</DL>
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<A NAME="lbAF"> </A>
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<H2>EXAMPLES</H2>
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The following command would change the priority of the processes with
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PIDs 987 and 32, plus all processes owned by the users daemon and root:
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<DL COMPACT>
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<DT id="7"><B> renice +1 987 -u daemon root -p 32</B>
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<DD>
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</DL>
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<A NAME="lbAG"> </A>
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<H2>NOTES</H2>
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Users other than the superuser may only alter the priority of processes they
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own. Furthermore, an unprivileged user can only
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<I>increase</I>
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the ``nice value'' (i.e., choose a lower priority)
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and such changes are irreversible unless (since Linux 2.6.12)
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the user has a suitable ``nice'' resource limit (see
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<B><A HREF="/cgi-bin/man/man2html?1+ulimit">ulimit</A></B>(1)
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and
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<B><A HREF="/cgi-bin/man/man2html?2+getrlimit">getrlimit</A></B>(2)).
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<P>
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The superuser may alter the priority of any process and set the priority to any
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value in the range -20 to 19.
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Useful priorities are: 19 (the affected processes will run only when nothing
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else in the system wants to), 0 (the ``base'' scheduling priority), anything
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negative (to make things go very fast).
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<A NAME="lbAH"> </A>
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<H2>FILES</H2>
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<DL COMPACT>
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<DT id="8"><I>/etc/passwd</I>
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<DD>
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to map user names to user IDs
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</DL>
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<A NAME="lbAI"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?1+nice">nice</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?2+getpriority">getpriority</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?2+setpriority">setpriority</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?7+credentials">credentials</A></B>(7),
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<B><A HREF="/cgi-bin/man/man2html?7+sched">sched</A></B>(7)
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<A NAME="lbAJ"> </A>
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<H2>HISTORY</H2>
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The
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<B>renice</B>
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command appeared in 4.0BSD.
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<A NAME="lbAK"> </A>
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<H2>AVAILABILITY</H2>
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The renice command is part of the util-linux package and is available from
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Linux Kernel Archive
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="9"><A HREF="#lbAB">NAME</A><DD>
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<DT id="10"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="11"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="12"><A HREF="#lbAE">OPTIONS</A><DD>
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<DT id="13"><A HREF="#lbAF">EXAMPLES</A><DD>
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<DT id="14"><A HREF="#lbAG">NOTES</A><DD>
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<DT id="15"><A HREF="#lbAH">FILES</A><DD>
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<DT id="16"><A HREF="#lbAI">SEE ALSO</A><DD>
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<DT id="17"><A HREF="#lbAJ">HISTORY</A><DD>
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<DT id="18"><A HREF="#lbAK">AVAILABILITY</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:26 GMT, March 31, 2021
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