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.\"
.IX Title "Processors 3pm"
.TH Processors 3pm "2020-11-09" "perl v5.32.0" "User Contributed Perl Documentation"
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.SH "NAME"
Unix::Processors \- Interface to processor (CPU) information
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&  use Unix::Processors;
\&
\&  my $procs = new Unix::Processors;
\&  print "There are ", $procs\->max_online, " CPUs at ", $procs\->max_clock, "\en";
\&  if ($procs\->max_online != $procs\->max_physical) {
\&      print "Hyperthreading between ",$procs\->max_physical," physical CPUs.\en";
\&  }
\&  (my $FORMAT =   "%2s  %\-8s     %4s    \en") =~ s/\es\es+/ /g;
\&  printf($FORMAT, "#", "STATE", "CLOCK",  "TYPE", );
\&  foreach my $proc (@{$procs\->processors}) {
\&      printf ($FORMAT, $proc\->id, $proc\->state, $proc\->clock, $proc\->type);
\&  }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This package provides accessors to per-processor (\s-1CPU\s0) information.
The object is obtained with the Unix::Processors::processors call.
the operating system in a \s-1OS\s0 independent manner.
.IP "max_online" 4
.IX Item "max_online"
Return number of threading processors currently online.  On hyperthreaded
Linux systems, this indicates the maximum number of simultaneous threads
that may execute; see max_physical for the real physical \s-1CPU\s0 count.
.IP "max_physical" 4
.IX Item "max_physical"
Return number of physical processor cores currently online.  For example, a
single chip quad-core processor returns four.
.IP "max_socket" 4
.IX Item "max_socket"
Returns the number of populated \s-1CPU\s0 sockets, if known, else the same number
as max_physical.  For example, a single chip quad-core processor returns
one.
.IP "max_clock" 4
.IX Item "max_clock"
Return the maximum clock speed across all online processors. Not all OSes support this call.
.IP "processors" 4
.IX Item "processors"
Return an array of processor references.  See the Unix::Processors::Info
manual page.  Not all OSes support this call.
.SH "DISTRIBUTION"
.IX Header "DISTRIBUTION"
The latest version is available from \s-1CPAN\s0 and from <http://www.veripool.org/>.
.PP
Copyright 1999\-2017 by Wilson Snyder.  This package is free software; you
you can redistribute it and/or modify it under the terms of either the \s-1GNU\s0
Lesser General Public License Version 3 or the Perl Artistic License Version 2.0.
.SH "AUTHORS"
.IX Header "AUTHORS"
Wilson Snyder <wsnyder@wsnyder.org>
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Unix::Processors::Info, Sys::Sysconf