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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 FREE CHAPTER 2. Profiling to Find Bottlenecks 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

Chapter 11

  1. Why would you like to test a Qt application?
    First of all, for correctness, and then for regression, and also for regressions in performance—remember Qt performance-regression tests and https://testresults.qt.io/grafana/?
  2. How would you implement a performance-regression test measuring the FPS rate of a QML application?
    We already developed a graphical FPS display in Chapter 8, Optimizing Graphical Performance. We could use the same technique of hooking into signals emitted by the QML scene graph and computing the needed statistics.
  3. Any ideas about deploying Qt application to embedded Linux? Take some hints from the previous chapter.
    As we discussed in the previous chapter, Qt Creator supports the copying of a cross-compiled binary to a target device. When the development is finished, the executable will be included as a separate packet in the Linux build tool...
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