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|
#!@@PERL@@
#
# Developed 05/28/2003 by Mike Discenza
# mike.discenza@dillards.com
#
# $Log$
# Revision 1.1 2004/01/02 18:50:00 jimmyo
# Renamed occurrances of lrrd -> munin
#
# Revision 1.1.1.1 2004/01/02 15:18:07 jimmyo
# Import of LRRD CVS tree after renaming to Munin
#
# Revision 1.2 2003/11/07 17:43:16 jimmyo
# Cleanups and log entries
#
#
#
#Important Note:
# This script uses /usr/bin/svmon to monitor
# memory usage. svmon can only be executed by
# root, so you must either setup an sudo, or run
# munin-node as root for this to work right.
#
#
# Plugin to monitor memory usage on AIX.
#
# DESCRIPTION
# ===========
# This will report back the amount of memory currently in use,
# pages pinned in memory, the amount of free memory, and the amount
# of swap space being used. It uses /usr/bin/svmon,
# /usr/sbin/lsps, and /usr/sbin/lsattr.
#
# RESTRICTIONS
# ============
# /usr/bin/svmon can only be executed by root. You will either
# have to run the munin-node as root, or set up an sudo for this
# script. The other commands (lsps, lsattr) should be executable
# by everyone be defualt.
#
# Parameters:
#
# config (required)
# autoconf (optional - only used by munin-config)
#
# Magic markers (optional - only used by munin-config and some
# installation scripts):
#%# family=contrib
#%# capabilities=autoconf
use strict;
use POSIX;
my($arg) = shift;
if($arg eq "autoconf")
{
if(-e "/usr/bin/svmon" && -X "/usr/bin/svmon")
{
print "yes\n";
exit 0;
}
else
{
print "no\n";
exit 1;
}
}
if($arg eq "config")
{
print "graph_args --base 1024 -l 0 --vertical-label Bytes --upper-limit ".getTotalMemBytes()."\n";
print "graph_title Memory usage\n";
print "graph_order inuse free pinned swap\n";
print "inuse.label inuse\n";
print "inuse.draw AREA\n";
print "free.label free\n";
print "free.draw STACK\n";
print "pinned.label pinned\n";
print "pinned.draw STACK\n";
print "swap.label swap\n";
print "swap.draw STACK\n";
exit 0
}
my($totalSwap,$swapUsed) = getSwapSpace();
my($inUse,$free,$pinned) = findMemoryUsage();
print "swap.value $swapUsed\ninuse.value $inUse\nfree.value $free\npinned.value $pinned\n";
sub getTotalMemBytes
{
my($line,@memInfo,$item,$totalMem);
open MEMLINE, "/usr/sbin/lsattr -El mem0|";
while($line = <MEMLINE>)
{
@memInfo = split(/ +/,$line);
if(lc($memInfo[0]) eq "size")
{$totalMem = $memInfo[1];}
}
my($memInBytes) = ($totalMem * 1024) * 1024;
return $memInBytes;
}
sub printArray
{
my($array,$spacer,$useNums,@labels) = @_;
my($item,);
my($count) = 0;
foreach $item (@{$array})
{
if($useNums == 1)
{print $count.substr($spacer,0,length($spacer)-length($count)).$item."\n";}
else
{print $labels[$count].substr($spacer,0,length($spacer)-length($labels[$count])).$item."\n";}
$count++;
}
}
sub getSwapSpace
{
my($line,@lineArray,$amountUsed,$totalSpace);
open SWAPINFO, "/usr/sbin/lsps -a|tail +2|";
while($line = <SWAPINFO>)
{
@lineArray = split(/ +/,$line);
$totalSpace += (substr($lineArray[3],0,-2) * 1024) * 1024;
$amountUsed += ((substr($lineArray[3],0,-2) * ($lineArray[4]/100)) * 1024) * 1024;
}
return (ceil($totalSpace),ceil($amountUsed));
}
sub findMemoryUsage
{
my($line,@lineArray);
my($inUse,$free,$pinned);
open MEMINFO, "/usr/bin/svmon -G|tail +2|";
while($line = <MEMINFO>)
{
@lineArray = split(/ +/,$line);
if(lc($lineArray[0]) eq 'memory')
{
$inUse = ($lineArray[2] * 4) * 1024;
$free = ($lineArray[3] * 4) * 1024;
$pinned = ($lineArray[4] * 4) * 1024;
}
}
return ($inUse,$free,$pinned);
}
|
