Intel Sees a 3888.9% Performance Improvement in the Linux Kernel - From One Line of Code

An anonymous reader shared this report from Phoronix:
Intel's Linux kernel test robot has reported a 3888.9% performance improvement in the mainline Linux kernel as of this past week...
Intel thankfully has the resources to maintain this automated service for per-kernel commit/patch testing and has been maintaining their public kernel test robot for years now to help catch performance changes both positive and negative to the Linux kernel code. The commit in question causing this massive uplift