CONFIG_SCHED_HW_PRESSURE:

General informations

The Linux kernel configuration item CONFIG_SCHED_HW_PRESSURE:

• prompt:
• type: bool
• depends on: ( CONFIG_ARM && CONFIG_ARM_CPU_TOPOLOGY ) && ( CONFIG_ARM64 ) && ( CONFIG_SMP ) && ( CONFIG_CPU_FREQ_THERMAL )
• defined in init/Kconfig
• found in Linux kernels: 6.10–6.13, 6.14-rc+HEAD

Help text

Select this option to enable HW pressure accounting in the scheduler. HW pressure is the value conveyed to the scheduler that reflects the reduction in CPU compute capacity resulted from HW throttling. HW throttling occurs when the performance of a CPU is capped due to high operating temperatures as an example.

If selected, the scheduler will be able to balance tasks accordingly, i.e. put less load on throttled CPUs than on non/less throttled ones.

This requires the architecture to implement arch_update_hw_pressure() and arch_scale_thermal_pressure().

Hardware

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Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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