Get the latest tech news
Linux 6.12 To Drop Old Code That Slows Down CPU Frequency Polling
The Linux 6.12 kernel cycle later this year has a change coming that will impact users of the 'Schedutil' CPU frequency scaling governor
The Linux 6.12 kernel cycle later this year has a change coming that will impact users of the "Schedutil" CPU frequency scaling governor. This change is dropping the "LATENCY_MULTIPLIER" that has been within the kernel code the past two decades to slowdown how frequent the CPU frequency evaluation occurs. Given how good modern hardware and how modern workloads require systems to be more responsive to cater for sudden changes in workload (tasks sleeping/wakeup/migrating, uclamp causing a sudden boost or cap) and that 2ms is quarter of the time of 120Hz refresh rate system, drop the old logic in favour of providing 50% headroom.
Or read this on Phoronix
