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Hands-On High Performance Programming with Qt 5

You're reading from   Hands-On High Performance Programming with Qt 5 Build cross-platform applications using concurrency, parallel programming, and memory management

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Product type Paperback
Published in Jan 2019
Publisher Packt
ISBN-13 9781789531244
Length 384 pages
Edition 1st Edition
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Author (1):
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Marek Krajewski Marek Krajewski
Author Profile Icon Marek Krajewski
Marek Krajewski
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Table of Contents (14) Chapters Close

Preface 1. Understanding Performant Programs 2. Profiling to Find Bottlenecks FREE CHAPTER 3. Deep Dive into C++ and Performance 4. Using Data Structures and Algorithms Efficiently 5. An In-Depth Guide to Concurrency and Multithreading 6. Performance Failures and How to Overcome Them 7. Understanding I/O Performance and Overcoming Related Problems 8. Optimizing Graphical Performance 9. Optimizing Network Performance 10. Qt Performance on Embedded and Mobile Platforms 11. Testing and Deploying Qt Applications 12. Assessments 13. Other Books You May Enjoy

Understanding I/O Performance and Overcoming Related Problems

As we already know, Qt is much more than a GUI framework. It also contains platform-independent APIs for all the tasks you will probably meet when writing an application. We could paraphrase and assert that Qt truly comes as C++ with batteries included: We get a GUI, graphics, multithreading, networking, string processing, file operations, XML and JSON, and even database connectivity. We already discussed Qt's multithreading and string processing when we introduced general-performance principles. In this chapter, we will turn our attention to more specific topics and explore a mixture of various topics that are loosely related to the I/O problematic, namely the following:

  • Reading and writing files in Qt
  • Parsing XML and JSON at the speed of light
  • Connecting databases
  • More about operating system interactions

We...

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