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This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
65 lines
1.8 KiB
Groff
65 lines
1.8 KiB
Groff
.\" Copyright 2017 IBM Corp.
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.\" s390-tools is free software; you can redistribute it and/or modify
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.\" it under the terms of the MIT license. See LICENSE for details.
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.\"
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.TH CPUPLUGD 8 "May 2011" "s390-tools"
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.
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.SH NAME
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cpuplugd \- Linux on System z CPU and memory hotplug daemon
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.
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.SH SYNOPSIS
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.B cpuplugd
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.RI [ OPTIONS ]
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.
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.SH DESCRIPTION
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The cpuplugd daemon dynamically enables and disables CPUs and increases or
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decreases the cooperative memory management (CMM) page pool based on a set of
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rules.
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When the daemon is stopped, the size of the CMM page pool and the number
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of active CPUs are reset to the values they had before the cpuplugd was started.
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This program can be used to control the number of CPUs for Linux on z/VM
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and for Linux in LPAR mode. The memory hotplug feature (CMM page pool) applies
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to Linux on z/VM only.
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.
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.SH OPTIONS
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.TP
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\fB\-c\fP or \fB\-\-config\fP \fI<configuration file>\fP
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Specify the absolute path to the configuration file. This option is mandatory.
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The default configuration file can be found in /etc/cpuplugd.conf.
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.
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.TP
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\fB\-f\fP or \fB\-\-foreground\fP
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Run in the foreground and not as daemon. If this option is
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omitted, the program runs in the background.
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.
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.TP
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\fB\-h\fP or \fB\-\-help\fP
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Print usage message and exit.
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.
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.TP
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\fB\-v\fP or \fB\-\-version\fP
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Print Version information and exit.
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.
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.TP
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\fB\-V\fP or \fB\-\-verbose\fP
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Print verbose messages to stdout (when running in foreground)
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or to syslog otherwise.
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This options is mainly used for debugging purposes.
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.
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.SH EXAMPLES
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To test a setup start cpuplugd in foreground mode using verbose output:
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.br
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.RS 4
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cpuplugd \-V \-f \-c /etc/cpuplugd.conf
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.RE
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For daemon mode, start cpuplugd from an init script as follows:
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.br
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.RS 4
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cpuplugd \-c /etc/cpuplugd.conf
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.RE
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.SH SEE ALSO
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.BR cpuplugd.conf (5)
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