On Mon 15-03-21 13:42:50, Linus Torvalds wrote: > If somebody can actually figure out what happened there, that would be > good, but for now it goes into my "archived as a random outlier" > folder.
This is not something new. We have seen reports like that in the past already. In many cases there was no apparent reason except for potential code alignment: e.g. http://lkml.kernel.org/r/20200409135029.GA2072@xsang-OptiPlex-9020 There were some other memcg related which didn't really show any increase in cache misses or similar. I cannot find those in my notes right now. There were others like https://lore.kernel.org/lkml/20201102091543.GM31092@shao2-debian/ with analysis http://lkml.kernel.org/r/[email protected] which actually pointed to something legit actually. For this particular report I do not see any real relation to the patch either. -- Michal Hocko SUSE Labs
