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J.T. Sage 2010-06-27 19:22:29 +02:00 committed by Steve Schnepp
parent c1849c7c31
commit 6e4305fc87
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plugins/other/dar_memusage Executable file
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#!/usr/bin/perl -w
# -*- perl -*-
=head1 NAME
dar_mumusage - Munin plugin to monitor darwin physical memory usage.
=head1 APPLICABLE SYSTEMS
Should work on any darwin (Mac OS X) system with the 'top' command.
=head1 CONFIGURATION
None needed
=head1 INTERPRETATION
The plugin runs the top command and shows the physical memory for the machine.
=head1 BUGS
The stats are a snapshot at the time of the command - a 5 minute average would
be better.
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf
=head1 VERSION
v.0.0.1
=head1 AUTHOR
Copyright (C) 2010.
Original version by J.T.Sage (at) gmail (dot) com.
=head1 LICENSE
GPLv2
=cut
use Munin::Plugin;
if ( defined($ARGV[0])) {
if ($ARGV[0] eq 'autoconf') {
$uname = `uname`;
if ( not ( $uname =~ /Darwin/ ) ) { print "no (not a Darwin System)\n"; }
else {
if ( not -x "/usr/bin/top" ) { print "no (top not found)\n"; }
else {
print "yes\n";
}
}
exit 0;
}
if ( $ARGV[0] eq "config" ) {
$maxmemcmd = `hostinfo | grep memory`;
$maxmemcmd =~ m/^.+?: (\d+\.\d+) (\w).+$/;
$memline = $1;
if ( $2 eq "m" ) { $memline = $memline * 1024 * 1024; }
if ( $2 eq "g" ) { $memline = $memline * 1024 * 1024 * 1024; }
print "graph_title Memory usage\n";
print "graph_args --base 1024 --lower-limit 0 --upper-limit ".$memline." --rigid\n";
print "graph_vlabel Bytes\n";
print "graph_scale yes\n";
print "graph_category system\n";
print "wired.label wired\nwired.type GAUGE\nwired.draw AREA\n";
print "active.label active\nactive.type GAUGE\nactive.draw STACK\n";
print "inactive.label inactive\ninactive.type GAUGE\ninactive.draw STACK\n";
print "free.label free\nfree.type GAUGE\nfree.draw STACK\n";
print "used.label used\nused.type GAUGE\nused.draw LINE2\n";
exit 0;
}
}
@top = `top -l1 -n0 -u`;
$quit = 0;
for ( $i = 1; ($i < $#top and $quit == 0); $i++ ) {
if ( $top[$i] =~ /^PhysMem/ ) {
$wired = $active = $inactive = $free = $used = $top[$i];
$wired =~ s/^.+?: (\d+)M wired.+$/$1/; chomp $wired; $wired = $wired * 1024 * 1024;
$active =~ s/^.+?, (\d+)M active.+$/$1/; chomp $active; $active = $active * 1024 * 1024;
$inactive =~ s/^.+?, (\d+)M inactive.+$/$1/; chomp $inactive; $inactive = $inactive * 1024 * 1024;
$free =~ s/^.+?, (\d+)([M|K]) free.+$/$1/; chomp $free; $free = $free * 1024 * 1024; if ( $2 eq "K" ) { $free = $free / 1024; }
$used =~ s/^.+?, (\d+)M used.+$/$1/; chomp $used; $used = $used * 1024 * 1024;
print "wired.value " . $wired . "\n";
print "active.value " . $active . "\n";
print "inactive.value " . $inactive . "\n";
print "free.value " . $free . "\n";
print "used.value " . $used . "\n";
$quit = 1;
}
}
# vim:syntax=perl