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Hands-On High Performance Programming with Qt 5

Hands-On High Performance Programming with Qt 5

By : Marek Krajewski
5 (2)
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Hands-On High Performance Programming with Qt 5

Hands-On High Performance Programming with Qt 5

5 (2)
By: Marek Krajewski

Overview of this book

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
Table of Contents (14 chapters)
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Questions

This time you can test your understanding of networking questions discussed in this chapter by answering the following questions:

  1. If, in the UDP protocol, there is no guarantee that the packet will arrive at the destination, why do we bother with it at all?
  2. How can we enable a network cache in Qt? What will get cached there?
  3. What is the IP protocol?
  4. Is there a Qt cache for DNS? How can we use it?
  5. Why would you consider using HTTP/2?
  6. What HTTP-like protocols are supported by Qt? Is REST supported?
  7. What are some examples of well-known ports? What are they, anyway?
  8. Ever heard of OSI's 7-layers protocol stack model?
  9. What are the performance gains from reusing a TCP connection?
  10. What is the TLS protocol? Isn't it the same as SSL?

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