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What is Hyper-Threading?
Hyper-Threading technology is an innovative design from Intel that enables multi-threaded software applications to process threads in
parallel within each processor resulting in increased utilization of processor execution resources. As a result, an average improvement
of ~40% in CPU resource utilization yields higher processing throughput.
How Hyper-Threading Works
A form of simultaneous multi-threading technology (SMT), Hyper-Threading technology allows multiple threads of software applications
to be run simultaneously on one processor by duplicating the architectural state on each processor while the same processor execution
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resources is shared. The figure below
represents how a Hyper-Threading based
processor
differentiates
multiprocessor. The left-hand configuration
shows a traditional multiprocessor system
with
two
physical
processors.
processor
has
its
own
execution resources and architectural state.
The right-hand configuration represents an
Intel Hyper-Threading technology based
processor. You can see that the architectural
state for each processor is duplicated, while
the execution resources is shared.
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