Sys::CpuLoad - retrieve system load averages
version 0.31
use Sys::CpuLoad 'load'; print '1 min, 5 min, 15 min load average: ', join(',', load()), "\n";
This module retrieves the 1 minute, 5 minute, and 15 minute load average of a machine.
This method returns the load average for 1 minute, 5 minutes and 15 minutes as an array.
On Linux, Solaris, FreeBSD, NetBSD and OpenBSD systems, it will make a call to "getloadavg".
If /proc/loadavg is available on non-Cygwin systems, it will call "proc_loadavg".
Otherwise, it will attempt to parse the output of uptime.
uptime
On error, it will return an array of undef values.
undef
As of v0.29, you can override the default function by changing $Sys::CpuLoad::LOAD:
$Sys::CpuLoad::LOAD
use Sys::CpuLoad 'load'; no warnings 'once'; $Sys::CpuLoad::LOAD = 'uptimr'; @load = load();
If you are writing code to work on multiple systems, you should use the load function. But if your code is intended for specific systems, then you should use the appropriate function.
load
This is a wrapper around the system call to getloadavg.
getloadavg
If this call is unavailable, or it is fails, it will return undef.
Added in v0.22.
If /proc/loadavg is available, it will be used.
If the data cannot be parsed, it will return undef.
Parse the output of uptime.
If the uptime executable cannot be found, or the output cannot be parsed, it will return undef.
As of v0.24, you can override the executable path by setting $Sys::CpuLoad::UPTIME, e.g.
$Sys::CpuLoad::UPTIME
use Sys::CpuLoad 'uptime'; no warnings 'once'; $Sys::CpuLoad::UPTIME = '/usr/bin/w'; @load = uptime();
Sys::CpuLoadX
The development version is on github at https://github.com/robrwo/Sys-CpuLoad and may be cloned from git://github.com/robrwo/Sys-CpuLoad.git
Please report any bugs or feature requests on the bugtracker website https://github.com/robrwo/Sys-CpuLoad/issues
When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.
Robert Rothenberg <rrwo@cpan.org>
Clinton Wong <clintdw@cpan.org>
Slaven Rezić <slaven@rezic.de>
Victor Wagner
Dmitry Dorofeev <dima@yasp.com>
Vincent Lefèvre <vincent@vinc17.net>
This software is copyright (c) 1999-2002, 2020 by Clinton Wong <clintdw@cpan.org>.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
To install Sys::CpuLoad, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Sys::CpuLoad
CPAN shell
perl -MCPAN -e shell install Sys::CpuLoad
For more information on module installation, please visit the detailed CPAN module installation guide.