User Guide

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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
resources is shared. The figure below
represents how a Hyper-Threading based
processor 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. You can see that the
architectural state for each processor is
duplicated, while the execution resources is
shared.