Intel Bay Trail & Cherry Trail CPUs To Run Faster With Linux 4.1
Of the few last minute ACPI/PM 4.1 changes is a tweak to the Intel P-State driver that changes the setpoint for Intel Atom hardware. With dropping the setpoint from 97 to 60, the P-State CPU frequency scaling driver will be much more aggressive in changing (increasing) the power/performance states when encountering load. Intel's Kristen Carlson Accardi says this change "improves performance on a variety of workloads with little power penalty." Unfortunately, no benchmarks were published, but I'll work on some new Bay Trail numbers once the Linux 4.1 kernel is further along.
This second ACPI/PM pull request for Linux 4.1 also adds Intel Skylake processor support to the RAPL power-capping driver.