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Processors

This menu offers options to change the processor settings.

Table 1. Processors
ItemOptionsDescription
Processor Details

N/A

Summary of the installed processors

CPU P-state Control

  • None

  • Legacy

  • Autonomous (Default)

  • Cooperative without Legacy

  • Cooperative with Legacy

You can select to controls CPU P-states (performance states).

[None]: Disables all P-states and processors work either at rated frequency or in Turbo Mode (if Turbo Mode is enabled).

[Legacy]: CPU P-states will be presented to the OS. The OS power management (OSPM) controls which P-state is selected.

[Autonomous]: The P-states are fully controlled by system hardware. No P-state support is required in the OS or VM.

[Cooperative] is a combination of [Legacy] and [Autonomous]. The P-states are still controlled by hardware but the OS can provide hints to the hardware for P-state limits, indicating the desired setting.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose System Settings > Operating Modes > Choose Operating Mode > Custom Mode.

C-States

  • Legacy (Default)

  • Disabled

C-states reduces power consumption during the idle time.

When [Legacy] is selected, the operating system initiates the C-state transitions. Some OS software may defeat the ACPI mapping (e.g. intel_idle driver).

Note

When a preset workload profile is selected, this setting is not changeable and is grayed out. To change the setting, select System Settings > Workload Profile > Custom first. Then, you can change this setting.

C1 Enhanced Mode

  • Enabled (Default)

  • Disabled

[Enabled]: Saves power by halting processor cores that are idle.

Using this feature requires an operating system supporting C1E state. Changes take effect after the system rebooted.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose System Settings > Operating Modes > Choose Operating Mode > Custom Mode > C-States > [Legacy]/[Disabled] .

Trusted Execution Technology

  • Enabled

  • Disabled (Default)

Enable or disable Intel Trusted Execution Technology (Intel TXT).

Intel TXT is a set of hardware extensions to Intel processors and chipsets that enhance the digital office platform with security capabilities such as measured launch and protected execution.

Intel Virtualization Technology

  • Disabled

  • Enabled (Default)

Enable or disable Intel Virtualization Technology.

Intel Virtualization Technology abstracts hardware that allows multiple workloads to share a common set of resources.

Note

When Trusted Execution Technology is set to [Enabled], this setting is not changeable and is grayed out.

Active Performace-cores

  • All(Default)

  • .

  • .

  • 2

  • 1

Select the number of P-Cores to be enabled in each processor package.

Note

The number of P-Cores and E-Cores are looked at together. When both P-Cores and E-Cores are set to 0, Pcode will enable all cores.

Active Efficient-cores

  • All(Default)

  • .

  • .

  • 3

  • 2

  • 1

  • 0

Select the number of E-Cores to be enabled in each processor package.

Note

The number of P-Cores and E-Cores are looked at together. When both P-Cores and E-Cores are set to 0, Pcode will enable all cores.

Active SOC-North Efficient-cores

  • All(Default)

  • .

  • .

  • 1

  • 0

Select the number of SOC-North Efficient-cores to be enabled in SOC North.

Package C State Limit

  • C0/C1

  • C2

  • C3

  • C6

  • C7

  • C7S

  • C8

  • C9

  • C10

  • Cpu Default

  • Auto(Default)

Select the maximum Package C State Limit.

[Cpu Default]: Leaves to factory default value.

[Auto]: Initializes to deepest available Package C State Limit.

Note

This feature appears only when C-states is not set to [Disabled].