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
       family, 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/.
 

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