In the Linux CFS scheduler, the task with smallest value of vruntime is considered to have the highest priority.

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The Linux CFS scheduler schedules tasks based on the fair share of CPU time they are entitled to. Each task is assigned a virtual runtime (vruntime) which is the amount of CPU time the task has consumed. The task with the smallest vruntime is considered to have the highest priority and is scheduled first. This ensures that all tasks are given a fair share of CPU time.

In the Linux CFS Scheduler, the Task with Smallest Value