LSCPU(1)							   User Commands							  LSCPU(1)

NAME

       lscpu - display information on CPU architecture

SYNOPSIS

       lscpu [-hpx] [-s directory]

DESCRIPTION

       lscpu gathers CPU architecture information like number of CPUs, threads, cores, sockets, NUMA nodes, information about CPU caches, CPU fam-
       ily, model, bogoMIPS, byte order and stepping from sysfs and /proc/cpuinfo, and prints it in a human-readable  format.	It  supports  both
       online  and  offline  CPUs.  It can also print out in a parsable format, including how different caches are shared by different CPUs, which
       can be fed to other programs.

OPTIONS

       -h, --help
	      Print a help message.

       -p, --parse [=list]
	      Print out in parsable instead of human-readable format.

	      If the list argument is not given then the default backwardly compatible output is printed.  The backwardly compatible  format  uses
	      two commas to separate CPU cache columns. If no CPU caches are identified, then the cache columns are not printed at all.

	      The  list  argument is comma delimited list of the columns. Currently supported are CPU, Core, Node, Socket, Book and Cache columns.
	      If the list argument is given then always all requested columns are printed in the defined order. The Cache columns are separated by
	      ':'.

	      Note  that  the optional list argument cannot be separated from the option by a space, the correct form is for example '-p=cpu,node'
	      or '--parse=cpu,node'.

       -s, --sysroot directory
	      Use the specified directory as system root.  This allows you to inspect a snapshot from a different system.

       -x, --hex
	      Use hexadecimal masks for CPU sets (e.g. 0x3).  The default is to print the sets in list format (e.g. 0,1).

BUGS

       The basic overview about CPU family, model, etc. is always based on the first CPU only.

       Sometimes in Xen Dom0 the kernel reports wrong data.

AUTHOR

       Cai Qian <qcai@redhat.com>
       Karel Zak <kzak@redhat.com>

AVAILABILITY

       The lscpu command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

util-linux							   February 2011							  LSCPU(1)