> The git bisect log (see attached) pointed at this commit: > > commit c2b3c170db610896e4e633cba2135045333811c2 (HEAD, refs/bisect/bad) > Author: Andi Kleen <ak@xxxxxxxxxxxxxxx> > Date: Tue Mar 26 15:18:20 2019 -0700 > perf stat: Revert checks for duration_time You must have misbisected. The commit only changes the perf user tool, not the kernel. -Andi