memory consumption

[Marco Ippolito]

> >> What if you increase the machine's (operating system's) swap space? Does
> >> that take care of the problem in practice?
> > 
> > I can`t do that because it will affect other containers running on this
> > host.
> > In my opinion it may significantly reduce their performance.
> 
> Assuming this a modern linux then you should have control groups that allow
> you to set limits on memory and swap for each container.
> 
> Are you running with systemd?

If their problem is that their memory goes from `<low>` to `<high>` and then
back down to `<mid>` rather than `<low>`, how could `cgroups` have helped in
that case?

I suspect the high watermark of `<high>` needs to be reachable still and,
secondly, that a forceful constraint whilst running would crash the container?

How else could one approach it?