Supero SuperServer 5028R-WR User Manual page 90

S S
UPER ERVER 5028R-WR User's Manual
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 ef-
ficiency 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 Offload 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 neces-
sary 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 En-
able, 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 Instruc-
tions (NI) to ensure data security. The options are Enable and Disable.
Intel Virtualization Technology
Select Enable to use Intel Virtualization Technology so that I/O device assignments
will be reported directly to the VMM (Virtual Memory Management) through the
DMAR ACPI Tables. This feature offers fully-protected I/O resource-sharing across
the Intel platforms, providing the user with greater reliability, security and availability
in networking and data-sharing. The settings are Enable and Disable.
7-8