Test2::Plugin::MemUsage(3)

NAME
Test2::Plugin::MemUsage - Collect and display memory usage information.

PLATFORM SUPPORT
The plugin selects a memory collector based on $^O:

Linux, Cygwin, GNU/kFreeBSD
    Reads "/proc/PID/status". Reports rss, size (VmSize), and peak (VmPeak).

macOS (darwin), *BSD, Solaris, AIX, HP-UX
    Shells out to "ps -o rss=,vsz= -p $$". Reports rss and size; peak is NA unless BSD::Resource is installed (see below).

MSWin32
    Uses Win32::Process::Memory if installed to call "GetProcessMemoryInfo". Reports rss (WorkingSetSize), peak (PeakWorkingSetSize), and size (PagefileUsage).

Other / fallback
    If BSD::Resource is installed, "getrusage" is used to fill in a peak RSS value when the primary collector did not provide one (or when no native collector matched the platform at all).

If no collector and no fallback applies, the plugin is a silent no-op.

DESCRIPTION
This plugin will collect memory usage info from "/proc/PID/status" and display it for you when the test is done running.

SYNOPSIS
    use Test2::Plugin::MemUsage;

This is also useful at the command line for 1-time use:

    $ perl -MTest2::Plugin::MemUsage path/to/test.t

Output:

    # rss:  36708kB
    # size: 49836kB
    # peak: 49836kB

SOURCE
The source code repository for Test2-Plugin-MemUsage can be found at https://github.com/Test-More/Test2-Plugin-MemUsage/.

MAINTAINERS

Chad Granum <exodist@cpan.org>

AUTHORS

Chad Granum <exodist@cpan.org>

COPYRIGHT
Copyright 2019 Chad Granum <exodist@cpan.org>.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

See http://dev.perl.org/licenses/