B.M. wrote: > Thanks a lot for your inputs. In the meantime I disabled zram and added a 2 > GiB swapfile. > > What I don't understand: how can the system have not enough memory problems, > while it's showing ~ 2 GiB cached/buffer? I'd expect it to free some of that > and be fine again... 2 GiB is about 50% of the physical RAM of 4 GiB?
That 2GB is being used by zram as swap and cannot be freed. You probably managed to increase your usable memory by 10-20% with zram -- at the cost of constantly swapping. (That's my hypothesis, anyway.) Let us know what happens in a day or two. -dsr-
