On Fri, Apr 22, 2022 at 11:27:05AM +0200, Michal Hocko wrote: > We already do that in some form. We dump unreclaimable slabs if they > consume more memory than user pages on LRUs. We also dump all slab > caches with some objects. Why is this approach not good? Should we tweak > the condition to dump or should we limit the dump? These are reasonable > questions to ask. Your patch has dropped those without explaining any > of the motivation. > > I am perfectly OK to modify should_dump_unreclaim_slab to dump even if > the slab memory consumption is lower. Also dumping small caches with > handful of objects can be excessive. > > Wrt to shrinkers I really do not know what kind of shrinkers data would > be useful to dump and when. Therefore I am asking about examples. Look, I've given you the sample output you asked for and explained repeatedly my rationale and you haven't directly responded; if you have a reason you're against the patches please say so, but please give your reasoning.
