On Fri, Feb 25, 2022 at 09:08:50AM -0800, Ivan Babrou <ivan@xxxxxxxxxxxxxx> wrote: > This seems like a great first step that should be merged on its own. > It would be good to also do something to improve the CPU time spent in > delayed work, if possible, as 0.5% of on-CPU time is not a negligible > amount. BTW how many levels deep is the affected memory cgroup hierarchy (where the workingset_refault happens)? (Self answer: Probably less than nr_cpus*MEMCG_BATCH, so not relevant.) Thanks, Michal
