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contrib-munin/plugins/darwin/dar_vmstat

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2010-06-27 19:27:07 +02:00
#!/usr/bin/perl -w
# -*- perl -*-
=head1 NAME
dar_vmstat - Munin plugin to monitor darwin virtual memory usage.
=head1 APPLICABLE SYSTEMS
Should work on any darwin (Mac OS X) system with the 'vm_stat' command.
=head1 CONFIGURATION
None needed
=head1 INTERPRETATION
The plugin runs the vm_stat command a shows the results. Consult the
vm_stat man page for more information on the output.
=head1 BUGS
None right now.
=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/vm_stat" ) { print "no (vm_stat not found)\n"; }
else {
print "yes\n";
}
}
exit 0;
}
if ( $ARGV[0] eq "config" ) {
print "graph_title Virtual Memory Statiscs\n";
print "graph_args --base 1000 -l 0\n";
print "graph_vlabel bytes\n";
print "graph_scale yes\n";
print "graph_category system\n";
@vmstat = `vm_stat`;
for ( $i = 1; $i < $#vmstat; $i++ ) {
$line = $vmstat[$i];
$label = $line;
$label =~ s/"//g;
$label =~ s/(\w+)\:.+$/$1/;
$label =~ s/\n//g;
$name = $label;
$name =~ tr/A-Z/a-z/;
$name =~ s/[^A-Za-z0-9_]/_/g;
if ( $name eq "pages_free" || $name eq "pages_active" || $name eq "pages_inactive" || $name eq "pages_speculative" || $name eq "pages_wired_down" ) {
$label =~ s/Pages //;
print $name, ".label ", $label, "\n";
print $name, ".type GAUGE\n";
print $name, ".cdef ", $name, ",4096,*\n";
}
}
exit 0;
}
}
@vmstat = `vm_stat`;
for ( $i = 1; $i < $#vmstat; $i++ ) {
$line = $vmstat[$i];
$label = $line;
$label =~ s/"//g;
$label =~ s/(\w+)\:.+$/$1/;
$label =~ s/\n//g;
$name = $label;
$name =~ tr/A-Z/a-z/;
$name =~ s/[^A-Za-z0-9_]/_/g;
$data = $line;
$data =~ s/.+?(\d+)\./$1/;
$data =~ s/\n//g;
#$data = int(($data / 1000) + .5);
if ( $name eq "pages_free" || $name eq "pages_active" || $name eq "pages_inactive" || $name eq "pages_speculative" || $name eq "pages_wired_down" ) {
print $name, ".value ", $data, "\n";
}
}
# vim:syntax=perl