Dell PowerEdge R250 Integrated Remote Access Controller 9 Attribute Registry - Page 272

BIOS.MemSettings.SnoopFilter (Read or Write) Description Enables or disables the snoop filter option. Not on 13G+. Legal Values ● Enabled ● Disabled Default Value Not Applicable Write Privilege Server Control License Required iDRAC Express or iDRAC Enterprise Dependency Not applicable BIOS.MemSettings.SnoopMode (Read or Write) Description Allows tuning of memory performances under different memory bandwidths. The optimal Snoop Mode setting is highly dependent on workload type. Early Snoop is best used for latency sensitive workloads. This setting offers the best balance between workload effects. Home Snoop is best used for NUMA workloads that need maximum local and remote memory bandwidth. Cluster on Die is best used for highly NUMA optimized workloads. This setting offers the best case local memory latency, but worst case remote latency. Cluster On Die is only available when Node Interleaving is Disabled. Opportunistic Snoop Broadcast, available on select processor models, works well for workloads of mixed NUMA optimization. It offers a good balance of latency and bandwidth. * Gen >= 13G * Value: COD: Proc must support COD. * Value:COD: Node Interleaving must be disalbed (COD available in NUMA mode). * [MemPopulation] * If M830/FC830 with Haswell there is effectively no SnoopMode option. * If M830/FC830 with Broadwell SnoopMode is available with options HomeSnoop and ClusterOnDie (if available). Legal Values ● HomeSnoop ● EarlySnoop ● ClusterOnDie ● OpportunisticSnoopBroadcast Default Value Not Applicable Write Privilege Server Control License Required iDRAC Express or iDRAC Enterprise Dependency Not applicable BIOS.MemSettings.SocketID0 (Read or Write) Description Socket ID Legal Values None Default Value Not Applicable Write Privilege Server Control License Required iDRAC Express or iDRAC Enterprise Dependency Not applicable BIOS.MemSettings.SocketID1 (Read or Write) Description Socket ID 272 BIOS Attributes