On Wed 21-08-19 22:42:29, James Courtier-Dutton wrote: > On Tue, 20 Aug 2019 at 07:47, Daniel Drake <dr...@endlessm.com> wrote: > > > > Hi, > > > > And if there is a meaningful way to make the kernel behave better, that > > would > > obviously be of huge value too. > > > > Thanks > > Daniel > > Hi, > > Is there a way for an application to be told that there is a memory > pressure situation?
PSI (CONFIG_PSI) measures global as well as per memcg pressure characteristics. [...] > I have also found, for the desktop, one of the biggest pressures on > the system is disk pressure. Accessing the disk causes the UI to be > less responsive. > For example, if I am in vim, and trying to type letters on the > keyboard, whether some other application is using the disk or not > should have no impact on my letter writing. Has anyone got any ideas > with regards to what we can do about that? This is what we have the page cache for. -- Michal Hocko SUSE Labs
