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For multiprocessor-capable software
applications,
the
Hyper-Threading
based processor is considered two
separate logical processors on which
the software applications can run
without modification. Also, each logical
processor
responds
to
independently.
The
first
processor can track one software
thread,
while
the
second
processor
tracks
another
thread simultaneously. Because the
two threads share the same execution
resources, the second thread can use
resources that would be otherwise idle
if only one thread was executing. This
results in an increased utilization of the
execution
resources
within
physical processor.
The figure below represents how Hyper-Threading saves time when it works. With two logical pro
processor, multi-threaded applications can now take advantage of thread-level parallelism o
performance. As software applications continue to be optimized to take greater advant
technology provides an additional boost for newer capabilities and the growing needs of today'
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interrupts
logica
l
logical
software
each
n
age of processor parallelism, Hyper-Threading
s users.
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cessors available on every single physical
each physical processor for additional
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