Home Java javaTutorial Concurrent programming tool: in-depth analysis of the architecture of Java concurrent collections

Concurrent programming tool: in-depth analysis of the architecture of Java concurrent collections

Apr 03, 2024 am 09:31 AM
Overview

并发编程利器:深入剖析 Java 并发集合的架构

php editor Xiaoxin provides an in-depth analysis of Java concurrent programming tools. This is a detailed introduction article about the Java concurrent programming framework. In this article, we will delve into the principles and practices of Java concurrent programming, introduce commonly used concurrent programming frameworks and tools, help readers better understand the core concepts and technologies of concurrent programming, and how to use these frameworks and tools to build efficient Reliable concurrent applications. Whether you are a beginner or an experienced developer, this article will provide you with valuable reference and guidance.

Segment lock

Segment lock divides the collection into multiple segments, each segment has its own lock. When a thread accesses data in a segment, it acquires the lock on that segment. Other threads can access data in other segments at the same time without being affected by the lock. This approach significantly improves concurrency because the area competing for the lock is restricted to a specific segment.

Scalable lock

Scalable locks are a variant of segmentation locks that perform better at higher concurrency levels. It uses multiple read-write locks, allowing multiple threads to read the collection simultaneously, while allowing only one thread to write to the collection. When concurrency levels are low, scalable locks degenerate into segmented locks to improve efficiency.

Hash table implementation

ConcurrentHashMap<strong class="keylink"></strong> in Java uses segmented locks. It divides the hash table into multiple segments, each segment has its own read-write lock. When a thread accesses an element in the hash table, it acquires a read-write lock on the segment. Other threads can access elements of other segments simultaneously without being affected by the lock. This method makes ConcurrentHashMap an efficient hash table implementation in a high concurrency environment.

Queue implementation

ConcurrentLinkedQueue

in Java uses a lock-free queue. It uses a linked list structure where each element refers to the next element. When a thread adds an element to the queue, it updates the reference without acquiring any locks. Other threads can remove elements from the queue at the same time without being affected by the operation. This approach makes ConcurrentLinkedQueue a queue implementation with extremely high concurrency.

Advantages of concurrent collections

    Thread safety:
  • Concurrent collections provide a thread-safe implementation to prevent data races and inconsistencies.
  • High concurrency:
  • Mechanisms such as segmentation locks and scalable locks enable concurrent collections to run efficiently in high-concurrency environments.
  • Scalability:
  • Concurrent collections can scale as concurrency levels increase to meet changing needs.
  • Flexibility:
  • Concurrent collections provide various implementations to meet different concurrency needs, such as ConcurrentHashMap, ConcurrentLinkedQueue and ConcurrentSkipListMap.
in conclusion

Java concurrent collections provide efficient and scalable thread-safe collection implementations by employing segmentation locks, scalable locks, and other mechanisms. They are widely used in high-concurrency systems to ensure data integrity and consistency.

The above is the detailed content of Concurrent programming tool: in-depth analysis of the architecture of Java concurrent collections. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Overview of operator overloading problems and solutions in C++ Overview of operator overloading problems and solutions in C++ Oct 08, 2023 pm 01:02 PM

Overview of Operator Overloading Problems and Solutions in C++ Introduction: Operator overloading is an important feature of the C++ language, which allows programmers to customize existing operators to operate custom data types. However, operator overloading needs to be used with caution, because if used improperly or excessively, it will lead to problems such as reduced code readability, ambiguity, and reduced efficiency. This article will outline common problems with operator overloading in C++ and provide corresponding solutions and code examples. 1. Problems with operator overloading 1.1 Ambiguity problem in operator overloading

Python Tkinter shows off its power: Create stunning GUI applications Python Tkinter shows off its power: Create stunning GUI applications Mar 24, 2024 am 09:11 AM

Tkinter is a powerful GUI library in python that can be used to create cross-platform desktop applications. With its ease of use and wide range of features, it provides various tools for building user interfaces, handling events and managing layouts. Creating a GUI Window To create a GUI window, you need to use the Tkinter.Tk() method. This method returns a Tk() object that represents the application's main window. A window can have a title using the title() method, and the window size and position using the geometry() method. importtkinterastkroot=tk.Tk()root.title(&quot;My first Tkinter application&quot;)root.g

PHP High Availability: Best Practices for 24/7 Application Availability PHP High Availability: Best Practices for 24/7 Application Availability Mar 26, 2024 pm 09:31 PM

Achieving high availability of applications is critical to ensure seamless operation of critical business services. For applications built with PHP, there are several best practices that can be used to achieve 24/7 availability. Failover and fault-tolerant load balancing: Use a backend load balancer to distribute traffic to multiple servers to avoid single points of failure. Failover: Configure an automatic failover mechanism to transfer traffic to an alternate server in the event of a failure. Fault-tolerant encoding: Use fault-tolerant encoding techniques, such as RaiD or erasure codes, to protect data from disk failures. Redundant and elastic auto-scaling: Enable auto-scaling to dynamically add or remove servers based on load. Multi-AZ deployment: Deploy applications to multiple Availability Zones (AZ) to maximize

Introducing Wireless Networks Introducing Wireless Networks Feb 19, 2024 pm 10:38 PM

Overview of Wireless Networks With the rapid development of technology, wireless networks have become an indispensable part of modern life. Our mobile phones, computers, smart homes and other devices all rely on wireless networks for communication and connection. In this article, we will provide an overview of wireless networks and discuss its development, principles, and applications. The development of wireless networks can be traced back to radio communication technology in the 19th century. At that time, people used radio waves to realize long-distance sound and image transmission, pioneering wireless communication. With the further development of electronic technology

Overview of EventLoop library in PHP8.0 Overview of EventLoop library in PHP8.0 May 14, 2023 am 08:49 AM

With the development of the PHP language, developers need more tools to solve the needs and challenges of modern applications, one of which is event-driven programming, and the EventLoop library of PHP8.0 was born for this purpose. This article will provide an overview and introduction to the library. What is EventLoop In traditional PHP applications, most operations are synchronous. In other words, the program will execute some code, then wait for the relevant data to return, and then continue to execute subsequent code. This programming model is useful for some applications

Revealing the behind-the-scenes story of the Yii framework: Controlling a new realm of PHP development Revealing the behind-the-scenes story of the Yii framework: Controlling a new realm of PHP development Mar 26, 2024 am 10:31 AM

The Yii framework is a modern, high-performance PHP framework designed to simplify and accelerate WEB application development. It provides a robust foundation that enables developers to focus on business logic rather than low-level details. Behind the Scenes Modular Architecture: Yii adopts a modular architecture so that applications can be easily extended and customized. A module is an independent, reusable block of code that can be used to implement a specific functionality, such as user management or e-commerce. MVC Pattern: Yii follows the mvc (Model-View-Controller) pattern, which separates the application logic from the presentation layer. This promotes code maintainability and improves application testability. ORM support: Yii provides a powerful object-relational mapping (ORM) layer that enables developers to

Remove project management barriers with PHP Git Remove project management barriers with PHP Git Mar 31, 2024 pm 12:11 PM

When managing large, complex software projects, project management tools are essential to simplify collaboration, stay organized, and increase efficiency. PHPgit, as a distributed version control system, can effectively eliminate obstacles in project management through its powerful functions and flexible features. Eliminate communication barriers Git's collaborative features simplify communication between team members. By using branches and merge requests, teams can work on different versions of files simultaneously and clearly track changes and conflicts. The code review and feedback process becomes more transparent and efficient, reducing misunderstandings and miscommunication. Enhanced organization Git's history feature provides a complete record of changes to your project. Team members can easily view the change history of files and branches to see who made specific changes

PHP namespace overview PHP namespace overview Aug 20, 2023 am 11:29 AM

IntroductionInPHP,useofnamespacesallowsclasses/functions/constantsofsamenamebeusedindifferentcontextswithoutanyconflict,therebyencapsulatingtheseitems.Anamespaceislogicalgroupingofclasses/functionsetcdependingontheirrelevence.Justasafilewithsamenamec

See all articles