SPEC CPU2006 Platform Settings for Intel-based systems

Firmware / BIOS / Microcode Settings

CPU Power and Performance Policy
Allows the user to set an overall power and performance policy for the system, and when changed will modify a selected list of options to achieve the policy.
[Performance] Optimization is strongly toward performance, even at the expense of energy efficiency.
[Balanced Performance] Weights optimization toward energy conservation, with good performance.
[Power] Optimization is strongly toward energy efficiency, even at the expense of performance.
Sub NUMA Cluster
This feature is similar to COD on previous generations. It produces more NUMA objects under ACPI. The major difference is that SNC LLC is unified and COD LLC is separated. Sub_NUMA Cluster enables the two-cluster SNC; two-way interleave of IMC Interleaving will focus to 1-cluster. If there are DIMMs on both MCs, enable the SNC and set one-way interleave. It will enable SNC2 (two clusters)
[Enabled] Enable Sub_NUMA Cluster.
[Disabled] Disable Sub_NUMA Cluster.
IMC Interleaving
This BIOS option controls the interleaving between the Integrated Memory Controllers (IMCs).
[Auto] IMC Interleaving mode is determined by SNC.
[1-way Interleaving] There is no interleaving.
[2-way Interleaving] Addresses are interleaved between the two IMCs.
Set Fan Profile
[Performance] Fan control provides primary system cooling before attempting to throttle memory.
[Acoustic] The system will favor using throttling of memory over boosting fans to cool the system if thermal thresholds are met.