My rockpro64 install has been acting up lately. I looked into it and found plasmashell has been eating memory. It just keeps taking in more and more until the system runs out of swap and dies. The only fixes I could find were related to NVIDIA drivers, which this computer doesn’t have, and some git packages being installed mistakenly, which this system also doesnt have. I can open up ksysguard and see plasmashell’s memory usage constantly climbing.
I can get 7 or 8 hours of uptime before plasmashell kills my system. I tried using a Wayland session instead. It was smoother but there were graphical glitches. In terms of stability, exact same problem occurred.
I am now up to 124,932K, so it is creeping up overall, but I have seen it give memory back too. I use mine all day at the office and had not noticed an issue at all, until you posted. But I will keep my eye on it.
This is using a 1 minute sample so there are a few hours here. As you can see, I have yet to hit 3GB and I have memory set aside for nfs caching and use tmpfs quite a bit. So while Plasmashell does use a bit more memory as the day goes along, it is not much. Not enough to make a noticeable difference, it never gets beyond the normal ups and downs of total memory used.