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After recent changes allowing scale-invariant utilization to be used on x86, the schedutil governor on top of intel_pstate in the passive mode should be on par with (or better than) the active mode "powersave" algorithm of intel_pstate on systems in which hardware-managed P-states (HWP) are not used, so it should not be necessary to use the internal scaling algorithm in those cases. Accordingly, modify intel_pstate to start in the passive mode by default if the processor at hand does not support HWP of if the driver is requested to avoid using HWP through the kernel command line. Among other things, that will allow utilization clamps and the support for RT/DL tasks in the schedutil governor to be utilized on systems in which intel_pstate is used. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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| .. | ||
| cpufreq.rst | ||
| cpufreq_drivers.rst | ||
| cpuidle.rst | ||
| index.rst | ||
| intel_epb.rst | ||
| intel_idle.rst | ||
| intel_pstate.rst | ||
| sleep-states.rst | ||
| strategies.rst | ||
| suspend-flows.rst | ||
| system-wide.rst | ||
| working-state.rst | ||