Supermicro X11DSF-E User Manual page 80

Super X11DSF-E User's Manual
Intel Virtualization Technology (Available when two processors are installed on the
motherboard)
Select Enable to use Intel Virtualization Technology which will allow multiple workloads to
share the same set of common resources. On shared virtualized hardware, various workloads
(or tasks) can co-exist, sharing the same resources, while functioning in full independence
from each other, and migrating freely across multi-level infrastructures and scale as needed.
The settings are Enable and Disable.
PPIN Control
Select Unlock/Enable to use the Protected-Processor Inventory Number (PPIN) in the system.
The options are Unlock/Enable and Lock/Disable.
Hardware Prefetcher (Available when supported by the CPU)
If this feature is set to Enable, the hardware prefetcher will prefetch streams of data and
instructions from the main memory to the Level 2 (L2) cache to improve CPU performance.
The options are Disable and Enable.
Adjacent Cache Prefetch (Available when supported by the CPU)
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 Disable and
Enable.
Note: Please power off and reboot the system for the changes to take effect. Please
refer to Intel's website for detailed information.
DCU Streamer Prefetcher (Available when supported by the CPU)
If this feature is set to Enable, the DCU (Data Cache Unit) streamer prefetcher will prefetch
data streams from the cache memory to the DCU (Data Cache Unit) to speed up data
accessing and processing to enhance CPU performance. The options are Disable and Enable.
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.
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 to enhance CPU
performance. The options are Disable and Enable.
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