Intel S1200BT, Service Manual, Page: 51 / 122

Intel® Server Board S1200BT Service Guide 35
21. 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
22. DCU Data Prefetcher
Option Values:Enabled
Disabled
Help Text:
The next cache line will be prefetched into L1 data cache from L2 or system memory
during unused cycles if it sees that the processor core has accessed several bytes
sequentially in a cache line as data.
[Disabled] – Only fetches cache line with data required by the processor (64 bytes).
Comments:DCU Data Prefetcher is normally Enabled, for best efficiency in L1 Data
Cache and Memory Channel use, but disabling it may improve performance for some
processing loads and on certain benchmarks. For more information.
23. DCU Instruction Prefetcher
Option Values:Enabled
Disabled
Help Text:
The next cache line will be prefetched into L1 instruction cache from L2 or system
memory during unused cycles if it sees that the processor core has accessed several bytes
sequentially in a cache line as data. [Disabled] – Only fetches cache line with data
required by the processor (64 bytes).
Comments:DCU Data Prefetcher is normally Enabled, for best efficiency in L1 I Cache
and Memory Channel use, but disabling it may improve performance for some processing
loads and on certain benchmarks. For more information.
24. Intel (SMX) Safer Mode Extensions