Linux::Info::PgSwStats - Collect linux paging and swapping statistics.
use Linux::Info::PgSwStats; my $lxs = Linux::Info::PgSwStats->new; $lxs->init; sleep 1; my $stat = $lxs->get;
Or
my $lxs = Linux::Info::PgSwStats->new(initfile => $file); $lxs->init; my $stat = $lxs->get;
Linux::Info::PgSwStats gathers paging and swapping statistics from the virtual /proc filesystem (procfs).
For more information read the documentation of the front-end module Linux::Info.
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.
Call new() to create a new object.
new()
my $lxs = Linux::Info::PgSwStats->new;
Maybe you want to store/load the initial statistics to/from a file:
my $lxs = Linux::Info::PgSwStats->new(initfile => '/tmp/pgswstats.yml');
If you set initfile it's not necessary to call sleep before get().
initfile
get()
It's also possible to set the path to the proc filesystem.
Linux::Info::PgSwStats->new( files => { # This is the default path => '/proc', stat => 'stat', vmstat => 'vmstat', } );
Call init() to initialize the statistics.
init()
$lxs->init;
Call get() to get the statistics. get() returns the statistics as a hash reference.
my $stat = $lxs->get;
Get raw values.
Nothing.
proc(5)
Linux::Info
Alceu Rodrigues de Freitas Junior, <arfreitas@cpan.org>
This software is copyright (c) 2015 of Alceu Rodrigues de Freitas Junior, <arfreitas@cpan.org>
This file is part of Linux Info project.
Linux-Info is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
Linux-Info is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with Linux Info. If not, see <http://www.gnu.org/licenses/>.
To install Linux::Info, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Linux::Info
CPAN shell
perl -MCPAN -e shell install Linux::Info
For more information on module installation, please visit the detailed CPAN module installation guide.