© National Instruments | 2-9
RMC-8357 User Manual
Note If there is any change to this setting, you will need to power off and reboot
the system for the change to take effect. Please refer to Intel’s web site for detailed
information.
DCU Streamer Prefetcher
If this item 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 for CPU performance enhancement. The options are Disable and Enable.
Note Available when supported by the CPU.
DCU IP Prefetcher
If this item is set to Enable, the IP prefetcher in the DCU (Data Cache Unit) will prefetch IP
addresses to improve network connectivity and system performance. The options are Enable
and Disable.
DCU (Data Cache Unit) Mode
Use this item to set the DCU data-prefecting mode. The options are 32KB 8Way Without ECC
and 16KB 4Way With ECC.
Direct Cache Access (DCA)
Select Enable to use Intel DCA (Direct Cache Access) Technology to maximize efficiency in
memory data transferring and accessing. The options are Auto, Enable and Disable.
DCA Prefetch Delay
A DCA prefetcher is used with a TOE (TCP/IP Ofload Engine) adapter to prefetch data to
shorten execution cycles and to maximize data processing efficiency. Prefetching data too
frequently can saturate the cache directory and delay necessary cache access. This feature
reduces or increases the frequency of system data prefetching activities. The options are Disable,
[8], [16], [32], [40], [48], [56], [64], [72], [80], [88], [96], [104], and [112].
X2APIC (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 item 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.
AES-NI
Select Enable to use the Intel Advanced Encryption Standard (AES) New Instructions (NI) to
ensure data security. The options are Enable and Disable.
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