What does NFO use to generate CPU/RAM usage graph?

[mohhk]

I didn't want to bother the NFO staff by asking the question directly but does anyone have an idea how they make these (neat) usage graphs?

I suspect they might be using MRTG. Can anyone confirm?

Does anyone running a Linux server (VDS) know a good (preferably easy to use) tool to monitor RAM and CPU usage?

[soja]

I don't know what NFO uses specifically, but Munin is a popular tool to generate graphs for various system resources.

[Edge100x]

We use "rrdtool" along with some custom scripts. It's actually in a watermark on the right-hand side of each graph, as well.

MTRG is still used internally for one type of graph but it isn't anywhere near as powerful as rrdtool.

Most other graphing tools (including munin) are also wrappers for rrdtool.

[mohhk]

Fascinating!

Thanks for the kind and honest reply.