Module pm

Constants§

cpu_idle_resume_latency_supported: Returns if idle resume latency is supported.
epp_supported: Returns if EPP (Energy Performance Preference) is supported.
for_each_uncore_domain: Iterates over all package/die combinations and applies a function.
get_epp: Gets EPP for a CPU.
get_turbo_enabled: Gets current turbo state (true = turbo enabled).
get_uncore_max_freq_khz: Gets the initial max uncore frequency for a package/die in kHz.
get_uncore_min_freq_khz: Gets the initial min uncore frequency for a package/die in kHz.
set_epp: Sets EPP for a CPU. Valid values: default, performance, balance_performance, balance_power, power
set_turbo_enabled: Sets turbo state (true = enable turbo).
set_uncore_max_freq_khz: Sets the max uncore frequency for a package/die in kHz.
turbo_supported: Returns if Intel pstate turbo control is supported.
uncore_freq_supported: Returns if Intel uncore frequency control is supported.
update_cpu_idle_resume_latency: Updates per cpu idle resume latency.
update_global_idle_resume_latency: Updates the global idle resume latency. When the returned file is closed the request is dropped. See the following kernel docs for more details: https://www.kernel.org/doc/html/latest/admin-guide/pm/cpuidle.html#power-management-quality-of-service-for-cpus