Dell PowerEdge C6420 EMC Installation and Service Manual - Page 44
Option, Description, Dell AVX Scaling
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Option Description Software Prefetcher Enables or disables the software prefetcher. This option is set to Enabled by default. DCU Streamer Prefetcher Enables or disables the Data Cache Unit (DCU) streamer prefetcher. This option is set to Enabled by default. DCU IP Prefetcher Enables or disables the Data Cache Unit (DCU) IP prefetcher. This option is set to Enabled by default. Sub NUMA Cluster Sub NUMA Clustering (SNC) is a feature for breaking up the LLC into disjoint clusters based on address range, with each cluster bound to a subset of the memory controllers in the system. It improves average latency to the LLC. Enables or disables the Sub NUMA Cluster. This option is set to Disabled by default. UPI Prefetch Enables you to get the memory that is read started early on DDR bus. The Ultra Path Interconnect (UPI) Rx path will spawn the speculative memory that is read to Integrated Memory Controller (iMC) directly. This option is set to Enabled by default. LLC Prefetch Enables or disables the LLC Prefetch on all threads. This option is set to Disabled by default. Dead Line LLC Alloc Enables or disables the Dead Line LLC Alloc. This option is set to Enabled by default. You can enable this option to enter the dead lines in LLC or disable the option to not enter the dead lines in LLC. Directory AtoS Enables or disables the Directory AtoS. AtoS optimization reduces remote read latencies for repeat read accesses without intervening writes. This option is set to Disabled by default. Logical Processor Idling Enables you to improve the energy efficiency of a system. It uses the operating system core parking algorithm and parks some of the logical processors in the system which in turn allows the corresponding processor cores to transition into a lower power idle state. This option can only be enabled if the operating system supports it. It is set to Disabled by default. Intel SST-BF Enable Intel SST-BF. This option is displayed if Performance Per Watt (operating system) or Custom (when OSPM is enabled) system profiles are selected. It is set to Disabled by default. Intel SST-CP Enable Intel SST-CP. This option is displayed if Performance Per Watt (operating system) or Custom (when OSPM is enabled) system profiles are selected. It is set to Disabled by default. Configurable TDP Enables you to configure the TDP level. The available options are Nominal, Level 1, and Level 2. This option is set to Nominal by default. NOTE: This option is only available on certain stock keeping units (SKUs) of the processors. x2APIC Mode Dell Controlled Turbo Enables or disables the x2APIC mode. This option is set to Enabled by default. Controls the turbo engagement. . This option is set to Disabled by default. NOTE: Depending on the number of installed processors, there might be up to two processor listings. Dell AVX Scaling Technology Number of Cores per Processor Processor Core Speed Processor n Enables you to configure the Dell AVX scaling technology. This option is set to 0 by default. Controls the number of enabled cores in each processor. This option is set to All by default. Specifies the maximum core frequency of the processor. NOTE: Depending on the number of processors, there might be up to two processors listed. The following settings are displayed for each processor that is installed in the system: Option Family-ModelStepping Brand Level 2 Cache Level 3 Cache Number of Cores Description Specifies the family, model, and stepping of the processor as defined by Intel. Specifies the brand name. Specifies the total L2 cache. Specifies the total L3 cache. Specifies the number of cores per processor. 44 Pre-operating system management applications
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