What is Hyper-Threading? Last Updated : 22 Jul, 2024 Comments Improve Suggest changes Like Article Like Report In history, there was only a single CPU system. Later on, the system improves and the CPU contains the cores. Like dual-core CPU, 4-Core CPU, 8-Core CPU, and so on. Core means these are logical CPUs. To again improve the system, Hyper-Threading technology is used. In Hyper-Threading one core contains 1 or more threads and those threads again behave like logical CPUs. Because of this, several processes can run on different threads and improve the performance of the system.What is Hyper-Threading?Hyper-Threading is a technology developed by Intel that allows a single physical processor to act like two separate processors. This helps the computer run multiple tasks more efficiently. When Hyper-Threading is enabled, the processor can handle two sets of instructions at the same time, making the computer faster and more responsive, especially when running multiple applications or complex programs.What is Multithreading?Multithreading is a method where a big task is divided into smaller parts called threads, which can be worked on at the same time by different CPU cores. This makes processing faster and more efficient. It's like having multiple people work on different parts of a project at the same time, instead of one person doing everything alone.How to Check Whether Our System Supports Hyper-Threading or Not?If Thread(s) per Core is greater than 1 then we can say that this system supports the Hyper-Threading.Thread(s) per core > 1Overall, Hyper-Threading improves the performance of multi-threaded applications on systems in modern computers via concurrent execution.AdvantagesMultitasking: If the system supports Hyper-Threading then several processes can run simultaneously on the different threads of the CPU's core.Resource Utilization: Using Hyper-Threading resources can't be idle and utilized to a great extent, because of several simultaneously running processes that can need resources. Because of this, the system's overall efficiency and performance increase.Responsiveness: Concurrent execution helps to decrease the response time for the user.DisadvantagesIf many processes are running simultaneously because of Hyper-Threading, and these processes compete for limited resources, such as cache memory then resources may get blocked.Because of many running processes, resources are shared among them, which can lead to an increase the contention and delays in the input/output of resources.ConclusionIn conclusion, Hyper-Threading is a technology that makes a single processor act like it's two separate processors. This helps computers handle multiple tasks at once more efficiently, making them faster and more responsive, especially when running several programs simultaneously. 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