I would like to find an easy way to chart load average, memory usage, etc. over time. I've used cacti which I can install, but it's a fairly heavy install with all its features and stuff. Ideally, I would like to just be able to show load average (1m/5m/15m) on a chart and memory usage (free/swap/etc) over time. Since sar is installed on this machine I was thinking that parsing the sar output would be an easy way to do it. Before writing it myself, I thought I'd ask around to find out if anyone knew of a PHP solution for parsing sar output and making a chart? I've seen ksar but this is a Java application and would require installation of Java.
I found this gentleman has written his own script but I have privacy concerns about this data so I'm not so sure about using Google Chart. From what I can tell, both the PHP and Javascript versions access google's domain to actually create the charts.
Does anyone know of a quick, simple way of charting sar information using PHP?