Dell PowerEdge R250 Integrated Remote Access Controller 9 Attribute Registry - Page 299

BIOS.ProcSettings.L2RfoPrefetch (Read or Write) Description Enable or disable the L2 RFO(Read For Ownership) prefetch. The RFO is the process of reading a cache line from the memory into the cache before it can be written to. Legal Values ● Enabled ● Disabled Default Value Not Applicable Write Privilege Server Control License Required iDRAC Express or iDRAC Enterprise Dependency Not applicable BIOS.ProcSettings.L2StreamHwPrefetcher (Read or Write) Description When set to Enabled, the processor provides advanced performance tuning by controlling the hardware prefetcher setting. Use the recommended setting, and this option will allow for optimizing overall workloads. Legal Values ● Enabled ● Disabled Default Value Not Applicable Write Privilege Server Control License Required iDRAC Express or iDRAC Enterprise Dependency Not applicable BIOS.ProcSettings.L2UpDownPrefetcher (Read or Write) Description When set to Enabled, the processor uses memory access to determine whether to fetch next or previous for all memory accesses for advanced performance tuning by controlling the L2 up/down prefetcher setting. Use the recommended setting and this option will allow for optimizing overall workloads. Legal Values ● Enabled ● Disabled Default Value Not Applicable Write Privilege Server Control License Required iDRAC Express or iDRAC Enterprise Dependency Not applicable BIOS.ProcSettings.LmceEn (Read or Write) Description Legal Values Default Value Enable or disable the LMCE feature. This is an extension of the MCA Recovery mechanism providing the capability to deliver Uncorrected Recoverable (UCR) Software Recoverable Action Required (SRAR) errors to one or more specific logical processor threads receiving previously poisoned or corrupted data. When enabled, the UCR SRAR Machine Check Exception is delivered only to the affected thread rather than broadcast to all threads in the system. The feature supports Operating System recovery for cases of multiple,recoverable faults detected in close proximity which would otherwise result in a fatal machine check event. The feature is available only on Advanced RAS processors. ● "Enabled","Disabled" Not Applicable BIOS Attributes 299