Re: Small server hanging after some days - top, load avg and Mem buff/cache question

[Dan Ritter <dsr@randomstring.org>]

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-