WHAT IS HYPER-THREADING?

HYPER-THREADING

It is a technique which virtually double the cores of a processor means that a quad-core processor will become octa-core and a dual core will become quad core.Basically, It is a technology introduced by Intel which allows their processor to intelligently schedule the tasks that are performed by a single core to make data processing more efficient.

Whatever process works in your CPU i.e  when you browse the internet, play games, listen music etc These tasks convert into a process and process contain multiple threads.

WHAT ARE THREADS ?

  • Threads are the smallest set of instruction that executes in one go

Cores execute one thread at a time but hyperthreading enables each core to run thread simultaneously from two other sources.So CPU works efficiently and faster

But many application software does not require hyper-threading. They does not take benefit of this technique and all operating system can not work on the principle of hyper-threading, so it is not necessary you will get a good performance every time it all depends on the usage.

SOME FACTS OF HYPER-THREADING

  • First introduced in Feb 2002 on Xeon server processor and in Nov 2002 on Pentium 4 desktop CPU
  • The physical cores in the processor remains the same
  •  Physical cores are better than hyper-threading

for example :-  Dual core processor with hyperthreading technique will not work better than a normal quad core processor

 DRAWBACKS

  • Increased power consumption
  • Heat output is little bit more

 

 

 

 

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