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CONFIG_UCLAMP_TASK: Enable utilization clamping for RT/FAIR tasks

General informations

The Linux kernel configuration item CONFIG_UCLAMP_TASK:

Help text

This feature enables the scheduler to track the clamped utilization of each CPU based on RUNNABLE tasks scheduled on that CPU.

With this option, the user can specify the min and max CPU utilization allowed for RUNNABLE tasks. The max utilization defines the maximum frequency a task should use while the min utilization defines the minimum frequency it should use.

Both min and max utilization clamp values are hints to the scheduler, aiming at improving its frequency selection policy, but they do not enforce or grant any specific bandwidth for tasks.

If in doubt, say N.

Hardware

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