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With the increasing number of cpu cores, it is inevitable to use multithreading technology to make full use of its computing power. Therefore, multithreading technology is a technology that service developers must master. Thread creation and destruction involve system calls and consume system resources. Therefore, thread pool technology is intr ...

Abstract: Design Pattern is a set of code design experience that is repeatedly used, known by most people, classified and catalogued. The purpose of using Design Pattern is to reuse code, make code easier to be understood by others and ensure code reliability. This article is shared from Huawei cloud community< Come on, here are the Go la ...

1, Thread pool creation If you need to use multithreading in your project, be sure to create a thread pool first. Because the thread pool can achieve thread reuse and save the overhead of repeated creation and destruction. Improve performance. Just like the database connection pool used in normal projects. First, let's look at the method of c ...

1. Thread pool related concepts 1.1. What is a thread pool The principle of thread pool is similar to that of database connection pool. Creating threads to process business may take longer than processing business. If the system can create threads in advance and use them directly when necessary, it will not close them directly after use, but ...

Keywords of this article: Thread, thread pool, single thread, multithreading, benefits of thread pool, thread recycling, creation method, core parameters, underlying mechanism, rejection policy, parameter setting, dynamic monitoring, thread isolation The knowledge related to threads and thread pools is a knowledge point that we will encounter ...

To view the previous blogs, click [category column] at the top   What is a thread pool? Thread pool in Java is the concurrency framework with the most application scenarios. Almost all programs that need to execute tasks asynchronously or concurrently can use thread pool. In the development process, the rational use of thread pool can brin ...

preface RejectedExecutionException exception thrown by thread pool submission task on line That is, the task submission performs the operation of reject policy. Check the business situation and thread pool configuration. It is found that the number of tasks executed in parallel is less than the maximum number of threads in the thread pool. Th ...

1.1 Preface In today's information society, with the rapid development of the network, people rely more and more on the network and are more and more inseparable from the network. As a result, there are more and more chat tools, such as MSN and QQ. The development of chat systems such as online chat is changing with each passing day. Therefo ...

This chapter mainly clarifies multithreading Processes and threads Process is the unit of system resource allocation, and thread is the unit of CPU scheduling and execution There are three ways to create threads Inherit Thread class (not recommended to avoid the limitation of OOP single inheritance) The custom Thread class inherits t ...

Why use thread pools? Thread pool is a form of multi-threaded processing. Tasks are added to the queue during processing, and then automatically started after threads are created. Thread pool threads are background threads. Each thread uses the default stack size, runs at the default priority, and is in a multithreaded unit. If a thread ...