Feature request: add support for graphing IO wait

In addition to CPU usage, rendering the amount of IO wait in the same graph would be awesome. Modern systems are typically either CPU or IO bottlenecked and I typically configure similar graphing plugin in MATE to render CPU usage in one color and IO wait in bright red on top. This results in fully red graph if the system is totally CPU limited but most of the time I see CPU load with some IO load at the bottom of the graph. It seems that the plugin is already reading the data form /proc/stat but it's simply not rendered in graph.

Could you add screenshot comparing to MATE applet? The order can differ from MATE's applet, but it should display it, too. I can see IO wait as green (default color) on my PC. You can use this to load MATE applet into Xfce4 panel.

It has been added in #1 (closed) some time ago, so it must work on Linux. Maybe you forgot to set detailed mode?

closed