Sys::Statistics::Linux::CpuStats.3pm

Langue: en

Autres versions - même langue

Version: 2010-08-13 (ubuntu - 24/10/10)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

Sys::Statistics::Linux::CpuStats - Collect linux cpu statistics.

SYNOPSIS

     use Sys::Statistics::Linux::CpuStats;
 
     my $lxs = Sys::Statistics::Linux::CpuStats->new;
     $lxs->init;
     sleep 1;
     my $stats = $lxs->get;

Or

     my $lxs = Sys::Statistics::Linux::CpuStats->new(initfile => $file);
     $lxs->init;
     my $stats = $lxs->get;

DESCRIPTION

Sys::Statistics::Linux::CpuStats gathers cpu statistics from the virtual /proc filesystem (procfs).

For more information read the documentation of the front-end module Sys::Statistics::Linux.

CPU STATISTICS

Generated by /proc/stat for each cpu (cpu0, cpu1 ...). cpu without a number is the summary. 
     user    -  Percentage of CPU utilization at the user level.
     nice    -  Percentage of CPU utilization at the user level with nice priority.
     system  -  Percentage of CPU utilization at the system level.
     idle    -  Percentage of time the CPU is in idle state.
     total   -  Total percentage of CPU utilization.

Statistics with kernels >= 2.6.

     iowait  -  Percentage of time the CPU is in idle state because an I/O operation
                is waiting to complete.
     irq     -  Percentage of time the CPU is servicing interrupts.
     softirq -  Percentage of time the CPU is servicing softirqs.
     steal   -  Percentage of stolen CPU time, which is the time spent in other
                operating systems when running in a virtualized environment (>=2.6.11).

METHODS

new()

Call "new()" to create a new object. 
     my $lxs = Sys::Statistics::Linux::CpuStats->new;

Maybe you want to store/load the initial statistics to/from a file:

     my $lxs = Sys::Statistics::Linux::CpuStats->new(initfile => '/tmp/cpustats.yml');

If you set "initfile" it's not necessary to call sleep before "get()".

init()

Call "init()" to initialize the statistics. 
     $lxs->init;

get()

Call "get()" to get the statistics. "get()" returns the statistics as a hash reference. 
     my $stats = $lxs->get;

EXPORTS

No exports.

SEE ALSO

proc(5)

REPORTING BUGS

Please report all bugs to <jschulz.cpan(at)bloonix.de>.

AUTHOR

Jonny Schulz <jschulz.cpan(at)bloonix.de>. Copyright (c) 2006, 2007 by Jonny Schulz. All rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.