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.