Shulou(Shulou.com)06/02 Report--

This article will explain in detail the usefulness of CPU in multiprogramming computer systems. The editor feels that it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

In a multiprogramming computer system, CPU can be occupied alternately by multiple programs. In single-core CPU, a thread can only be locked and used by one process at a time; in multiple applications, polling mechanism is generally used to divide time slices for multiple applications, and CPU switches quickly among multiple application processes to achieve the purpose of multi-process work.

In a multiprogramming computer system, CPU can be occupied alternately by multiple programs.

Correlation

In a single-core CPU, a thread can only be locked and used by one process at a time, and other processes cannot be preempted. As for multiple applications, if fewer core resources are used, it is the responsibility of the operating system. Generally, polling mechanism is adopted, which divides multiple applications into time slices, and CPU switches quickly between multiple application processes in order to achieve the purpose of multi-process work.

In other words, CPU can be occupied by multiple programs. However, CPU can not be occupied by multiple programs "at the same time", but can be "alternately" occupied by multiple programs.

This is the end of the article on "what is the use of CPU in a multiprogramming computer system". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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