Service Guide

Intel® Server Board S1200BT Service Guide 35
Option Values: Enabled
Disabled
Help Text:
Enable/Disable Intel
®
VT-d Pass-through DMA support.
Comments:This option only appears when Intel
®
Virtualization Technology for Directed
I/O is Enabled.
22. MLC Streamer
Option Values: Enabled
Disabled
Help Text:
MLC Streamer is a speculative prefetch unit within the processor(s).
Note: Modifying this setting may affect performance.
Comments:MLC Streamer is normally Enabled for the best efficiency in L2 Cache and
Memory Channel use, but disabling it may improve performance for some processing
loads and on certain benchmarks. For more information.
23. MLC Spatial Prefetcher
Option Values: Enabled
Disabled
Help Text:
[Enabled] – Fetches adjacent cache line (128 bytes) when required data is not currently in
cache.
[Disabled] - Only fetches cache line with data required by the processor (64 bytes).
Comments:MLC Spatial Prefetcher is normally Enabled, for best efficiency in L2 Cache
and Memory Channel use, but disabling it may improve performance for some processing
loads and on certain benchmarks. For more information
24. DCU Data Prefetcher
Option Values: Enabled
Disabled
Help Text: