scx_flash: rework and re-enable nvcsw prioritization #2308
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Use a simplified method to evaluate the rate of voluntary context switches, re-evaluating the rate every time ops.quiescent() is invoked, instead of refreshing the value every @slice_max nanoseconds. Tested-by: Piotr Gorski <piotrgorski@cachyos.org> Signed-off-by: Andrea Righi <arighi@nvidia.com>
With the updated logic to evaluate the average rate of voluntary context switches, re-enable task prioritization based on this metric to give interactive tasks an extra priority boost. Tested-by: Piotr Gorski <piotrgorski@cachyos.org> Signed-off-by: Andrea Righi <arighi@nvidia.com>
multics69
approved these changes
Jul 2, 2025
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Rework and re-enable prioritization based on the average rate of voluntary context switches. This allows to boost interactive tasks with a higher sleep frequency over tasks with lower sleep frequency (which might have less pressing latency requirements).