OPPO Kernel Craftsman
Sep 4, 2020 · Fundamentals
Understanding the PELT (Per‑Entity Load Tracking) Algorithm in the Linux Kernel Scheduler
PELT (Per‑Entity Load Tracking) replaces the coarse per‑run‑queue load model in Linux’s CFS scheduler with fine‑grained, decay‑based load and utility measurements for each scheduling entity, enabling more accurate load‑balancing, CPU‑frequency decisions, and hierarchical group scheduling across heterogeneous cores.
CFSLinuxLoad Tracking
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