Sys::Statistics::Linux::PgSwStats.3pm

Langue: en

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

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

Sys::Statistics::Linux::PgSwStats - Collect linux paging and swapping statistics.

SYNOPSIS

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

Or

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

DESCRIPTION

Sys::Statistics::Linux::PgSwStats gathers paging and swapping statistics from the virtual /proc filesystem (procfs).

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

PAGING AND SWAPPING STATISTICS

Generated by /proc/stat or /proc/vmstat. 
     pgpgin      -  Number of kilobytes the system has paged in from disk per second.
     pgpgout     -  Number of kilobytes the system has paged out to disk per second.
     pswpin      -  Number of kilobytes the system has swapped in from disk per second.
     pswpout     -  Number of kilobytes the system has swapped out to disk per second.
 
     The following statistics are only available by kernels from 2.6.
 
     pgfault     -  Number of page faults the system has made per second (minor + major).
     pgmajfault  -  Number of major faults per second the system required loading a memory page from disk.

METHODS

new()

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

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

     my $lxs = Sys::Statistics::Linux::PgSwStats->new(initfile => '/tmp/pgswstats.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 $stat = $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.