Reference Guide

Write Privilege Server Control
License Required iDRAC Express or iDRAC Enterprise
Dependency Not applicable
BIOS.ProcSettings.DcuStreamerPrefetcher (Read or Write)
Description
Enables or disables Data Cache Unit (DCU) Streamer Prefetcher. This setting can affect performance,
depending on the application running on the server. Recommended for High Performance Computing
applications.
Not on Value systems.
Legal Values
● Enabled
● Disabled
Default Value Not Applicable
Write Privilege Server Control
License Required iDRAC Express or iDRAC Enterprise
Dependency Not applicable
BIOS.ProcSettings.DmaVirtualization (Read or Write)
Description
When enabled, additional hardware capabilities for DMA Remapping and Virtualization are available.
Legal Values
● Enabled
● Disabled
Default Value Not Applicable
Write Privilege Server Control
License Required iDRAC Express or iDRAC Enterprise
Dependency Not applicable
BIOS.ProcSettings.DynamicCoreAllocation (Read or Write)
Description
Logical Processor Idling (LPI) is a collaborative interface between platform and Operating System that
helps to improve the energy efficiency of a system. This feature is required in those cases where
customer has a need to go for power budgeting. It uses Operating Systems core parking algorithm and
parks some of the logical processors in the system which in turn lets the corresponding processor cores
transition into a lower power idle state. If LPI is getting used instead of throttling, better performances
can be achieved when power budgeting is used. Setting to Disabled limits the OS capability to put the
logical processors in idling state. Note: This feature is not supported if CPU Power Management is set to
Maximum Performance.
Legal Values
● Enabled
● Disabled
Default Value Not Applicable
Write Privilege Server Control
License Required iDRAC Express or iDRAC Enterprise
Dependency Not applicable
268 BIOS Attributes