On Thu, Nov 7, 2019 at 1:03 AM lkp report check <rong.a.chen@xxxxxxxxx> wrote: > > FYI, we noticed a 144.0% improvement of phoronix-test-suite.noise-level.0.activity_level due to commit: > > commit: d60337eff18a3c587832ab8053a567f1da9710d2 ("[RFC PATCH 04/11] pipe: Use head and tail pointers for the ring, not cursor and length [ver #3]") That sounds nice, but is odd. That commit really shouldn't change anything noticeable. David, any idea? Linus