OPPO Kernel Craftsman

Dec 25, 2020 · Fundamentals

Utilization Clamping (uclamp) in Linux Kernel Scheduling

Utilization clamping (uclamp) lets user space specify a task’s minimum and maximum CPU utilization, allowing the Linux scheduler to more accurately scale frequency and select cores, improving performance and power efficiency through per‑task, cgroup, and global APIs that replace the older schedtune mechanism.