No Comments Written by Ronald on June 29, 2008 – 9:38 pm

Here is a simple Load monitoring / logging script . This will log the load in /var/log/load.log . You can execute the script as follows,

chmod +x /root/loadavg.sh

Now add it as cron

*/5 * * * * /root/loadavg.sh

• 1) Load monitoring script in BASH(loadavg.sh)

#!/bin/bash

export _loadavg=$( cat /proc/loadavg | awk ‘{ print $1}’)

echo “Load Average:$_loadavg on `date` ” >> /var/log/load.log

• 2) Load monitoring script in Python(loadavg.py)

#!/usr/bin/env python

import os,commands

loadavg=commands.getoutput(”cat /proc/loadavg|awk ‘{ print $1}’”)

_date=commands.getoutput(”date”)

f = open(’/var/log/load.log’, ‘aw’)

f.writelines( “Load average :” +loadavg+” on “+ _date+”n”)

f.close()

• 3) Load monitoring script in perl(loadavg.pl)

#!/usr/bin/perl

my $ld=`cut -d’ ‘ -f1 /proc/loadavg`;

my $lavg=chomp($ld);

my $D_ate=`date`;

open (LOG, ‘>>/var/log/load.log’);

print LOG “Load Average:$ld on $D_ate”;

close (LOG);