# NAME Sys::CpuLoad - retrieve system load averages # VERSION version 0.31 # SYNOPSIS ```perl use Sys::CpuLoad 'load'; print '1 min, 5 min, 15 min load average: ', join(',', load()), "\n"; ``` # DESCRIPTION This module retrieves the 1 minute, 5 minute, and 15 minute load average of a machine. # EXPORTS ## load 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"](#getloadavg). If `/proc/loadavg` is available on non-Cygwin systems, it will call ["proc\_loadavg"](#proc_loadavg). Otherwise, it will attempt to parse the output of `uptime`. On error, it will return an array of `undef` values. As of v0.29, you can override the default function by changing `$Sys::CpuLoad::LOAD`: ```perl use Sys::CpuLoad 'load'; no warnings 'once'; $Sys::CpuLoad::LOAD = 'uptimr'; @load = load(); ``` If you are writing code to work on multiple systems, you should use the `load` function. But if your code is intended for specific systems, then you should use the appropriate function. ## getloadavg This is a wrapper around the system call to `getloadavg`. If this call is unavailable, or it is fails, it will return `undef`. Added in v0.22. ## proc\_loadavg If `/proc/loadavg` is available, it will be used. If the data cannot be parsed, it will return `undef`. Added in v0.22. ## uptime Parse the output of uptime. If the [uptime](https://metacpan.org/pod/uptime) executable cannot be found, or the output cannot be parsed, it will return `undef`. Added in v0.22. As of v0.24, you can override the executable path by setting `$Sys::CpuLoad::UPTIME`, e.g. ```perl use Sys::CpuLoad 'uptime'; no warnings 'once'; $Sys::CpuLoad::UPTIME = '/usr/bin/w'; @load = uptime(); ``` # SEE ALSO [Sys::CpuLoadX](https://metacpan.org/pod/Sys::CpuLoadX) # SOURCE The development version is on github at [https://github.com/robrwo/Sys-CpuLoad](https://github.com/robrwo/Sys-CpuLoad) and may be cloned from [git://github.com/robrwo/Sys-CpuLoad.git](git://github.com/robrwo/Sys-CpuLoad.git) # BUGS Please report any bugs or feature requests on the bugtracker website [https://github.com/robrwo/Sys-CpuLoad/issues](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. # AUTHORS - Robert Rothenberg - Clinton Wong # CONTRIBUTORS - Slaven Rezić - Victor Wagner - Dmitry Dorofeev - Vincent Lefèvre # COPYRIGHT AND LICENSE This software is copyright (c) 1999-2002, 2020 by Clinton Wong . This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.