On Tue, Mar 15, 2022 at 11:04:56PM -0700, Song Liu wrote: > Lookups invoke a rstat flush, so we still walk every node of a subtree for > each lookup, no? So the actual cost should be similar than walking the > subtree with some BPF program? Did I miss something? rstat only walks cgroups / cpus which have been active since the flush. Thanks. -- tejun