Since monitoring is at the heart of managing infrastructures, time-series and measurements also, I believe it is time to remember what the first derivative is. Because all those graphs we make with Graphite, Graphana and friends are not only eye-candy. They have some meaning too. “The Art of Monitoring” speaks of the rate of change in its first chapter, but this has a formal name.
Now go hug your SysAdmin.
Managing organized complexity 