Adam Weremczuk <ad...@matrixscience.com> writes:
> The container was running like that for several months until this morning > when its core service (dhcp) started failing. Just a wild guess, but do you know what caused dhcp to fail? Was it too little memory? > > I logged in to investigate and noticed 100% of swap being used with maybe > 10-20% of RAM in use. If I recall correctly, Linux may choose to swap pages out in order to free up physical memory in order to use said memory for buffers and caches. This is a performance optimization. So if there are pages which have not been touched for a while, but I/O performance might benefit from a larger cache, this is actually good for performance. Regards, Nathanael
