Sys::Statistics::Linux::CpuStats(3pm)

Usage

    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;

Overview

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()".

It's also possible to set the path to the proc filesystem.

     Sys::Statistics::Linux::CpuStats->new(
        files => {
            # This is the default
            path => '/proc'
            stat => 'stat',
        }
    );

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;

raw()

Get raw values.

Exports

No exports.

Releases

8 releases since Debian 6.0 (Squeeze); the text changed 4 times.