Supermicro X13DGU User Manual page 108

Super X13DGU User's Manual
Hardware Prefetcher
If this feature is set to Enable, the hardware prefetcher will prefectch data from the main
system memory to Level 2 cache to help expedite data transaction to enhance memory
performance. The options are Enable and Disable.
Adjacent Cache Prefetch
Select Enable for the CPU to prefetch both cache lines for 128 bytes as comprised. Select
Disable for the CPU to prefetch both cache lines for 64 bytes. The options are Enable and
Disable.
DCU Streamer Prefetcher
If this feature is set to Enable, the Data Cache Unit (DCU) streamer prefetcher will prefetch
data streams from the cache memory to the DCU to speed up data accessing and processing
to enhance CPU performance. The options are Enable and Disable.
DCU IP Prefetcher
This feature allows the system to use the sequential load history, which is based on the
instruction pointer of previous loads, to determine whether the system will prefetch additional
lines. The options are Enable and Disable.
LLC Prefetch
If this feature is set to Enable, LLC (hardware cache) prefetching on all threads will be
supported. The options are Disable and Enable.
Homeless Prefetch
Select Enable for Homeless Prefetch support on all threads, which is an Effective Prefetch
Strategy (EPS) used to enhance memory performance by reducing communication overhead,
network latency, and the wait time needed for barrier synchronization in memory prefetching
commonly associated with the home-based software DSM (Distributed Shared Memory)
system. The options are Disable, Enable, and Auto. Please note that the setting - "Auto" is
program-specific.
Extended APIC (Extended Advanced Programmable Interrupt Controller)
Based on the Intel Hyper-Threading technology, each logical processor (thread) is assigned
256 APIC IDs (APIDs) in 8-bit bandwidth. When this feature is set to Enable, the APIC ID will
be expanded from 8 bits to 16 bits to provide 512 APIDs to each thread for CPU performance
enhancement. The options are Disable and Enable.
Intel Virtualization Technology
Select Enable to enable the Intel Vanderpool Technology for Virtualization platform support,
which will allow multiple operating systems to run simultaneously on the same computer to
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