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 pages the system has paged in from disk per second.
pgpgout - Number of pages the system has paged out to disk per second.
pswpin - Number of pages the system has swapped in from disk per second.
pswpout - Number of pages 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().
It's also possible to set the path to the proc filesystem.
Sys::Statistics::Linux::PgSwStats->new(
files => {
# This is the default
path => '/proc',
stat => 'stat',
vmstat => 'vmstat',
}
);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;raw()
Get raw values.
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
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.