Book Image

Mastering C++ Multithreading

By : Maya Posch
Book Image

Mastering C++ Multithreading

By: Maya Posch

Overview of this book

Multithreaded applications execute multiple threads in a single processor environment, allowing developers achieve concurrency. This book will teach you the finer points of multithreading and concurrency concepts and how to apply them efficiently in C++. Divided into three modules, we start with a brief introduction to the fundamentals of multithreading and concurrency concepts. We then take an in-depth look at how these concepts work at the hardware-level as well as how both operating systems and frameworks use these low-level functions. In the next module, you will learn about the native multithreading and concurrency support available in C++ since the 2011 revision, synchronization and communication between threads, debugging concurrent C++ applications, and the best programming practices in C++. In the final module, you will learn about atomic operations before moving on to apply concurrency to distributed and GPGPU-based processing. The comprehensive coverage of essential multithreading concepts means you will be able to efficiently apply multithreading concepts while coding in C++.
Table of Contents (17 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
8
Atomic Operations - Working with the Hardware

Chapter 6. Debugging Multithreaded Code

Ideally, one's code would work properly the first time around, and contain no hidden bugs that are waiting to crash the application, corrupt data, or cause other issues. Realistically, this is, of course, impossible. Thus it is that tools were developed which make it easy to examine and debug multithreaded applications.

In this chapter, we will look at a number of them including a regular debugger as well as some of the tools which are part of the Valgrind suite, specifically, Helgrind and DRD. We will also look at profiling a multithreaded application in order to find hotspots and potential issues in its design.

Topics covered in this chapter include the following:

  • Introducing the Valgrind suite of tools
  • Using the Helgrind and DRD tools
  • Interpreting the Helgrind and DRD analysis results
  • Profiling an application, and analyzing the results