Qt5高效编程实战:优化性能与内存管理

需积分: 15 31 下载量 174 浏览量 更新于2024-07-15 1 收藏 9.69MB PDF 举报
"《High Performance Programming with Qt5》是一本深入实践的指南,专为开发高效且快速的跨平台应用程序而设计。本书由Marek Krajewski撰写,由Packt Publishing出版,版权日期为2019年。书中主要探讨了如何利用Qt5框架进行高性能编程,针对性能问题提供解决方案,并优化代码。 本书的核心内容包括: 1. **并发编程**:通过掌握Qt5中的多线程和并发机制,学习如何设计和实现高效的并行任务处理,提升应用响应速度。读者将了解到如何有效地管理线程池、信号与槽机制以及避免常见的并发问题,如数据竞争和死锁。 2. **平行编程**:讲解了如何在Qt5中利用并行计算库(如QParallelism)来加速CPU密集型操作,如图像处理、数学运算等,充分利用现代硬件的多核心能力。 3. **内存管理**:深入剖析Qt5内存管理的最佳实践,包括对象生命周期、内存泄漏检测和智能指针的使用,确保程序的稳定性和性能。读者将学习如何优化内存分配和释放策略,以减少内存占用和提高性能。 4. **跨平台支持**:Qt5以其强大的跨平台特性而闻名,书中会详细介绍如何编写可在Windows、macOS和Linux等不同操作系统上无缝运行的高性能应用,保证用户体验的一致性。 5. **实用技巧和案例分析**:书中提供了丰富的实战案例,通过实际项目展示如何在各种场景下应用所学的高性能编程技术。读者将学会如何对代码进行性能调优,解决性能瓶颈,并通过性能测试工具进行评估。 6. **版权和免责声明**:尽管作者和出版社已尽力确保信息的准确性,但本书不保证所有信息无误。读者在使用本书内容时,须遵循版权规定,未经书面许可,不得复制或传播部分内容。 《High Performance Programming with Qt5》是一本旨在帮助开发人员提升Qt5应用性能的专业书籍,无论是初学者还是经验丰富的开发者,都能从中受益,提升自己的技术实力。"
2019-03-08 上传
Hands-On High Performance Programming with Qt 5: Build cross-platform applications using concurrency, parallel programming, and memory management Author: Marek Krajewski Pub Date: 2019 ISBN: 978-1789531244 Pages: 384 Language: English Format: EPUB Size: 17 Mb Build efficient and fast Qt applications, target performance problems, and discover solutions to refine your code Achieving efficient code through performance tuning is one of the key challenges faced by many programmers. This book looks at Qt programming from a performance perspective. You’ll explore the performance problems encountered when using the Qt framework and means and ways to resolve them and optimize performance. The book highlights performance improvements and new features released in Qt 5.9, Qt 5.11, and 5.12 (LTE). You’ll master general computer performance best practices and tools, which can help you identify the reasons behind low performance, and the most common performance pitfalls experienced when using the Qt framework. In the following chapters, you’ll explore multithreading and asynchronous programming with C++ and Qt and learn the importance and efficient use of data structures. You’ll also get the opportunity to work through techniques such as memory management and design guidelines, which are essential to improve application performance. Comprehensive sections that cover all these concepts will prepare you for gaining hands-on experience of some of Qt’s most exciting application fields – the mobile and embedded development domains. By the end of this book, you’ll be ready to build Qt applications that are more efficient, concurrent, and performance-oriented in nature What you will learn Understand classic performance best practices Get to grips with modern hardware architecture and its performance impact Implement tools and procedures used in performance optimization Grasp Qt-specific work techniques for graphical user interface (GUI) and platform programming Make Transmission Control Protocol (TCP) and Hypertext Transfer Protocol (HTTP) performant and use the relevant Qt classes Discover the improvements Qt 5.9 (and the upcoming versions) holds in store Explore Qt’s graphic engine architecture, strengths, and weaknesses