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|
package Sys::Info::Driver::Linux::Device::CPU;
$Sys::Info::Driver::Linux::Device::CPU::VERSION = '0.7909';
use strict;
use warnings;
use parent qw(Sys::Info::Base);
use Sys::Info::Driver::Linux;
use Unix::Processors;
use POSIX ();
use Carp qw( croak );
sub identify {
my $self = shift;
if ( ! $self->{META_DATA} ) {
my $mach = $self->uname->{machine};
my $arch = $mach =~ m{ i [0-9] 86 }xmsi ? 'x86'
: $mach =~ m{ ia64 }xmsi ? 'IA64'
: $mach =~ m{ x86_64 }xmsi ? 'AMD-64'
: $mach
;
my @raw = split m{\n\n}xms,
$self->trim( $self->slurp( proc->{cpuinfo} ) );
$self->{META_DATA} = [];
my $device_model;
foreach my $e ( @raw ) {
my %i = $self->_parse_cpuinfo($e);
if ( $i{__meta_key} ) {
$device_model = $i{Model};
next;
}
push @{ $self->{META_DATA} },
{ %i, architecture => $arch };
}
if ( $device_model ) {
for my $e ( @{ $self->{META_DATA} } ) {
$e->{__device_model} = $device_model;
$e->{model} ||= $device_model;
}
}
}
return $self->_serve_from_cache(wantarray);
}
sub bitness {
my $self = shift;
my @cpu = $self->identify;
my $flags = $cpu[0]->{flags};
if ( $flags ) {
my $lm = grep { $_ eq 'lm' } @{$flags};
return '64' if $lm;
}
return $cpu[0]->{architecture} =~ m{64}xms ? '64' : '32';
}
sub load {
my $self = shift;
my $level = shift;
my @loads = split /\s+/xms, $self->slurp( proc->{loadavg} );
return $loads[$level];
}
sub _parse_cpuinfo {
my $self = shift;
my $raw = shift || croak 'Parser called without data';
my($k, $v);
my %cpu;
foreach my $line (split /\n/xms, $raw) {
($k, $v) = split /\s+:\s+/xms, $line;
$cpu{$k} = $v;
}
if ( $cpu{Model} && $cpu{Revision} && $cpu{Serial} ) {
return %cpu, __meta_key => 1;
}
my @flags = $cpu{flags} ? (split /\s+/xms, $cpu{flags}) : ();
my %flags = map { $_ => 1 } @flags;
my $up = Unix::Processors->new;
my $name = $cpu{'model name'};
$name =~ s[ \s{2,} ][ ]xms if $name;
my $cpu_freq_file = proc->{scaling_cur_freq};
my $speed = $cpu{'cpu MHz'};
if ( ! $speed && -e $cpu_freq_file ) {
$speed = $self->trim( $self->slurp( $cpu_freq_file ) );
}
return(
processor_id => $cpu{processor},
data_width => $flags{lm} ? '64' : '32', # guess
address_width => $flags{lm} ? '64' : '32', # guess
bus_speed => undef,
speed => $speed,
name => $name || q{},
family => $cpu{'cpu family'},
manufacturer => $cpu{vendor_id},
model => $cpu{model},
stepping => $cpu{stepping},
number_of_cores => $cpu{'cpu cores'} || $up->max_physical,
number_of_logical_processors => $up->max_online,
L2_cache => {max_cache_size => $cpu{'cache size'}},
flags => @flags ? [ @flags ] : undef,
);
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Sys::Info::Driver::Linux::Device::CPU - Linux CPU Device Driver
=head1 VERSION
version 0.7909
=head1 SYNOPSIS
-
=head1 DESCRIPTION
Identifies the CPU with L<Unix::Processors>, L<POSIX> and C<< /proc >>.
=head1 METHODS
=head2 identify
See identify in L<Sys::Info::Device::CPU>.
=head2 load
See load in L<Sys::Info::Device::CPU>.
=head2 bitness
See bitness in L<Sys::Info::Device::CPU>.
=head1 SEE ALSO
L<Sys::Info>,
L<Sys::Info::Device::CPU>,
L<Unix::Processors>, L<POSIX>,
proc filesystem.
=head1 AUTHOR
Burak Gursoy
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2006 by Burak Gursoy.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
|
