#!/usr/bin/env perl
#
# Munin plugin for monitoring PHP5-FPM memory usage
#
# Copyright TJ Stein 2010 http://constantshift.com

my $PHP_BIN = exists $ENV{'phpbin'} ? $ENV{'phpbin'} : "php5-fpm";

if ( exists $ARGV[0] and $ARGV[0] eq "config" ) {
        print "graph_title PHP5-FPM Memory Usage\n";
        print "graph_vlabel RAM\n";
        print "graph_category PHP\n";
        print "ram.label ram\n";
                print "graph_args --base 1024\n";
} else {
        my $i = Integer;
        @cmd = `ps auwx | grep $PHP_BIN | grep -v grep | grep -v phpfpm_memory`;

        foreach (@cmd) {
                @return = split(/ +/, $_);
                $i += @return[5]*1024;
        }
        print "ram.value ".$i."\n";
}