A Programmer’s Guide to Performance Analysis & Tuning on Modern CPUs

They say “performance is king’… It was true a decade ago and it certainly is now. With more and more data the world generates each day, we need more and more computing power to process it.

It used to be the case that some SW vendors preferred to wait for a new generation of HW to speed up their application and did not spend human resources on making improvements in their code. When it’s no longer the case that each HW generation provides a significant performance boost, we must start paying more attention to how fast our code actually runs.

Lazy initialisation in C++ and Multi-threading

In the previous post about lazy initialisation, we showed examples and differences between using raw pointers, unique_ptr and std::optional to store the object and create it later. However, we implemented the samples from the perspective of single-threaded scenarios.

In this post, we’ll try to fill the gap and show you how to make your lazy objects available in a multithreading environment.

Five Awesome C++ Papers for the Belfast ISO Meeting and C++20 Status

Following the pattern for other ISO C++ Meetings, I prepared a blog post where you’ll learn about:

• The current status of C++20
• an overview about the Belfast meeting (4th till 9th Nov)
• a few interesting papers that are worth reading

Let’s start!

#C++ Links #37 - The case for C++ and Big Four of C++20

Welcome to new C++ Links - most relevant and useful articles, podcasts and videos that happen between 25th October and 1st November 2019.

Today you will find links to articles about refactoring, the story of std::less, what is lazy initialization and why you should learn C++. Let’s start!

Lazy Initialisation in C++

Lazy initialisation is one of those design patterns which is in use in almost all programming languages. Its goal is to move the object’s construction forward in time. It’s especially handy when the creation of the object is expensive, and you want to defer it as late as possible, or even skip entirely.

Keep reading and see how you can use this pattern with the C++ Standard Library.

C++ Tricks: IIFE for Complex Variable Initialization

What do you do when the code for a variable initialization is complicated? Do you move it to another method or write inside the current scope?

In this blog post, I’d like to present a trick that allows computing a value for a variable, even a const variable, with a compact notation.

C++ Ecosystem: Compilers, IDEs, Tools, Testing and More

To write a professional C++ application, you not only need a basic text editor and a compiler. You require some more tooling. In this blog post, you’ll see a broad list of tools that make C++ programming possible: compilers, IDEs, debuggers and other.

How To Use Vocabulary Types from C++17, Presentation

Two weeks ago, I had a pleasure to give a talk at our local C++ User Group in Cracow. This time I spoke about vocabulary types from C++17: std::optional, std::variant and std::any.

Have a look at the slides and extended comments.

C++17 In Detail - Print Version!

Last week was an important milestone for my book: it got a print version available at Amazon! In this post, I’ll share some details behind the event and the plans.

C++ Links #36 - How to start with modern C++, Concepts & Books!

Welcome to new C++ Links - most relevant and useful articles, podcasts and videos that happen between 6st and 13th September 2019.

Today you will find links to an article about how to implement StringConvertible concept, how to get started with Modern C++, an article about issues with C++20 Ranges, new books and many other!

C++ Links #35 Myths about C++ good practices, raw string literals

Welcome to new C++ Links - most relevant and useful articles, podcasts and videos that happen between 31st August and 6th September 2019.

Today you will find links to a video about raw string literals, myths about C++ good practices, a Ranges library on GPU and more.

New new() - The C++17's Alignment Parameter for Operator new()

Last week’s article about smaller C++17 features mentioned updated operator new() that handles non-standard alignment of objects. How does it work? Can you use it to ask for arbitrary alignments? Let’s try some code and have a closer look.

C++ Links #34 - new new(), bind_front, SFINAE & AWS

Welcome to new C++ Links - most relevant and useful articles, podcasts and videos that happen between 16th and 24th August 2019.

Today you will find links new operator new, bind_front implementation, SFINAE techniques and much more.

C++ Links #33 - Parallel Algorithms, Smaller Features, Pipes & Dropbox

Welcome to new C++ Links - most relevant and useful articles, podcasts and videos that happen between 9th and 16th August 2019.

Today you will find links to a list of smaller C++17 features, a free book about Intel TBB and parallel programming, why Dropbox is moving away from C++ and many more!