49 lines
1.5 KiB
Groff
49 lines
1.5 KiB
Groff
.\" Process this file with
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.\" groff -man -Tascii lscpu.1
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.\"
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.TH LSCPU 1 "February 2011" Linux "User Manuals"
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.SH NAME
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lscpu \- CPU architecture information helper
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.SH SYNOPSIS
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.B lscpu
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.RB [ \-hpx ]
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.RB [ \-s
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.IR directory ]
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.SH DESCRIPTION
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.B lscpu
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gathers CPU architecture information like number of CPUs, threads,
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cores, sockets, NUMA nodes, information about CPU caches, CPU family,
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model, bogoMIPS, byte order and stepping from sysfs and /proc/cpuinfo, and prints it in
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a human-readable format. It supports both online and offline CPUs.
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It can also print out in a parsable format,
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including how different caches are shared by different CPUs,
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which can be fed to other programs.
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.SH OPTIONS
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.TP
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.BR \-h , " \-\-help"
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Print a help message.
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.TP
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.BR \-p , " \-\-parse"
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Print out in parsable instead of human-readable format.
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.TP
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.BR \-s , " \-\-sysroot " \fIdirectory\fP
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Use the specified \fIdirectory\fP as system root. This allows you to inspect
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a snapshot from a different system.
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.TP
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.BR \-x , " \-\-hex"
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Use hexadecimal masks for CPU sets (e.g. 0x3). The default is to print the sets
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in list format (e.g. 0,1).
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.SH BUGS
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The basic overview about CPU family, model, etc. is always based on the first
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CPU only.
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Sometimes in Xen Dom0 the kernel reports wrong data.
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.SH AUTHOR
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.nf
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Cai Qian <qcai@redhat.com>
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Karel Zak <kzak@redhat.com>
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.fi
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.SH AVAILABILITY
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The lscpu command is part of the util-linux package and is available from
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ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
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