OPPO Kernel Craftsman
Jan 6, 2023 · Fundamentals
CFS Group Scheduling: Purpose, Configuration, and Kernel Implementation Details
The article explains why Linux’s Completely Fair Scheduler introduced group scheduling, how Android configures task groups via cpu.shares and Process.java, and details the kernel structures (task_group, sched_entity, cfs_rq) and algorithms for weight calculation, load measurement, propagation, and hierarchical load balancing.
CFS schedulingLinux kernelcgroup
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