On Fri, Jul 8, 2016 at 1:46 AM, Ingo Molnar <mi...@kernel.org> wrote: > > Could you please try to find some syscall workload that does many small user > copies and thus excercises this code path aggressively?
Any stat()-heavy path will hit cp_new_stat() very heavily. Think the
usual kind of "traverse the whole tree looking for something". "git
diff" will do it, just checking that everything is up-to-date.
That said, other things tend to dominate.
Linus
