[RFC] simple_lmk: Introduce Simple Low Memory Killer for Android

[Joel Fernandes]

On Mon, Mar 11, 2019 at 01:46:26PM -0700, Sultan Alsawaf wrote:
> On Mon, Mar 11, 2019 at 01:10:36PM -0700, Suren Baghdasaryan wrote:
> > The idea seems interesting although I need to think about this a bit
> > more. Killing processes based on failed page allocation might backfire
> > during transient spikes in memory usage.
> 
> This issue could be alleviated if tasks could be killed and have their pages
> reaped faster.

But the point is that a transient temporary memory spike should not be a
signal to kill _any_ process.  The reaction to kill shouldn't be so
spontaneous that unwanted tasks are killed because the system went into
panic mode. It should be averaged out which I believe is what PSI does.

thanks,

- Joel