In trying to find the culprit of a high load average on a system during night (which does not seem to be related to logrotate) I installed atop to write a raw file with a specific interval. While reading the file, it seems the processlist stands still, can I somehow go back and forth between the samples to see what sticks out, and further sort by any column (like cpu usage)?
Check what process is spiking the average load with atop
load average;atop