On Tue, Jan 11, 2022 at 10:23:41AM -0800, Roman Gushchin wrote: >On Tue, Jan 11, 2022 at 01:03:02AM +0000, Wei Yang wrote: >> mem_cgroup_threshold_ary->current_threshold points to the last entry >> who's threshold is less or equal to usage. >> >> Instead of iterating entries to get the correct index, we can leverage >> primary->current_threshold to get it. If the threshold added is less or >> equal to usage, current_threshold should increase by one. Otherwise, it >> doesn't change. > >How big is usually an array of thresholds? If it's not huge, likely >any savings won't be really noticeable (it's not a hot path and there >is an rc_synchronize() below). Usually the size is small I think. > >So I agree with Michal that a better justification is really needed. Yep. > >Thanks! -- Wei Yang Help you, Help me
