ADLINK aTCA-6155 - Manual (Page 84)

70 BIOS Setup
Adjacent Cache Line Prefetch
This is used to choose the optimal use of sequential memory
access for performance purpose. Disable this setting for appli-
cations that require high use of random memory access.
Execute-Disable Bit Capability
Intel’s Execute Disable Bit is an hardware-based security fea-
ture that can help reduce system exposure to viruses and mali-
cious code. It allows the processor to classify areas in memory
where application code can or cannot execute. When a mali-
cious worm attempts to insert code in the buffer, the processor
disables code execution, preventing damage and worm propa-
gation. To use Execute Disable bit you must have a PC or
server with a processor with Execute Disable Bit capability and
a supporting operating system.
Intel® HT Technology
Hyper-Threading Technology is used to improve parallelization
of computations performed on PC microprocessors. A proces-
sor with hyper-threading enabled is treated by the operating
system as two processors instead of one.
Intel® Speedstep™ Technology
Intel® SpeedStep™ technology allows the system to dynami-
cally adjust processor voltage and core frequency, which can
result in decreased average power consumption and
decreased average heat production.
Intel® C-State Technology
This function controls the availability of the CPU C-state power
saving technology.