During normal operation (running is Pi-Hole and sometimes the DV4mini service dv_serial) the free memory is degrading permanently. You can see this on the log of my monitoring routine (http://www.oe1gpa.at/download/radiopi_screen.jpg).
Can anyone give me a hint how to overcome that situation? If the reason can not be found then at least to have a solution for freeingn the dead memory?
My old PasPi 3 is running under Wheezy and has not that problem.
Best regards
Gerald