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