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/