Graphing Raspberry Pi performance with sar

As part of monitoring the general health of my Raspberry Pi boxes, i like keeping a historical image of how the load was at a given time. I have real time monitoring in place, which will alert me via Pushover if something goes haywire1, and my surveillance does it’s own checking and alerts (via the same pushover container) if a sensor fails to report within a given period. I based my graph generating script on the one described here, though the memory calculation in that script is not what i wanted, and this being a memory restricted platform, i also wanted to monitor swap in/out. [Read More]