On Tue, 9 Feb 2021 13:32:58 -0800 Jesse Barnes wrote: > > ====================== > > Augmented Page Reclaim > > ====================== > > We would like to share a work with you and see if there is enough > > interest to warrant a run for the mainline. This work is a part of > > result from a decade of research and experimentation in memory > > overcommit at Google: an augmented page reclaim that, in our > > experience, is performant, versatile and, more importantly, simple. > > Per discussion on IRC, maybe some additional background would help. > > In looking at browser workloads on Chrome OS, we found that reclaim was: > 1) too expensive in terms of CPU usage > 2) often making poor decisions about what to reclaim Feel free to send a patchset to LKML/MM - it can speak for itself. > > This work was mainly targeted toward improving those things, with an > eye toward interactive performance for browser workloads. > > We have a few key tests we use for that, that measure tab switch times > and number of tab discards when under memory pressure, and this > approach significantly improves these (see Yu's data). > > We do expect this approach will also be beneficial to cloud workloads, > and so are looking for people to try it out in their environments with > their favorite key tests or workloads. > > Thanks, > Jesse
