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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
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be run simultaneously on one processor
by duplicating the architectural state on
each
processor execution resources is shared.
The figure below represents how a
Hyper-Threading
differentiates a traditional multiprocessor.
The left-hand configuration shows a
traditional multiprocessor system with
two physical processors. Each processor
has its own independent execution
resources and architectural state. The
right-hand configuration represents an
Intel Hyper-Threading technology based
processor.
architectural state for each processor is
duplicated, while the execution resources
is shared.
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