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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>
74 lines
1.9 KiB
Groff
74 lines
1.9 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 LSMEM 8 "Apr 2010" s390\-tools
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.
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.
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.SH NAME
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lsmem \- list the ranges of available memory with their online status.
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.
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.
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.SH SYNOPSIS
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.B lsmem
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.RB [OPTIONS]
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.
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.
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.SH DESCRIPTION
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The lsmem command lists the ranges of available memory with their online
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status. The listed memory blocks correspond to the memory block representation
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in sysfs. The command also shows the memory block size, the device size, and
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the amount of memory in online and offline state.
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.
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.SS "Column description"
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.
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.TP 4
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Address Range
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Start and end address of the memory range.
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.
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.TP 4
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Size
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Size of the memory range in MB (1024 x 1024 bytes).
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.
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.TP 4
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State
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Indication of the online status of the memory range. State on->off means
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that the address range is in transition from online to offline.
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.
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.TP 4
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Removable
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"yes" if the memory range can be set offline, "no" if it cannot be set offline.
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A dash ("\-") means that the range is already offline.
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.
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.TP 4
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Device
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Device number or numbers that correspond to the memory range.
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Each device represents a memory unit for the hypervisor in control of the
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memory. The hypervisor cannot reuse a memory unit unless the corresponding
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memory range is completely offline. For best memory utilization, each device
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should either be completely online or completely offline.
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The chmem command with the size parameter automatically chooses the best suited
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device or devices when setting memory online or offline. The device size depends
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on the hypervisor and on the amount of total online and offline memory.
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.
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.
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.SH OPTIONS
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.TP
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.BR \-a ", " \-\-all
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List each individual memory block, instead of combining memory blocks with
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similar attributes.
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.
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.TP
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.BR \-h ", " \-\-help
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Print a short help text, then exit.
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.
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.TP
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.BR \-v ", " \-\-version
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Print the version number, then exit.
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.
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.
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.SH SEE ALSO
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.BR chmem (8)
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