Then: cd /etc/cron.d
You can use pico or VI here, I prefer vi but you create a file called "sysstat"
Insert the following in the file:
# run system activity accounting tool every 10 minutes
*/10 * * * * root /usr/lib/sa/sa1 1 1
# generate a daily summary of process accounting at 23:53
53 23 * * * root /usr/lib/sa/sa2 -A
Save the file and quit vi or pico.
chmod 755 sysstat
And thats it, your done. Wait about an hour and you then if you run "sar" or "sar -q" you should start seeing some load averages.
Use "sar -q" anywhere in the command prompt to start seeing your load averages.