To get the most out of this book

This book assumes some basic knowledge of the Rust programming language. If you are new to Rust, the first few chapters of the official Rust book are a great prelude. Nevertheless, you should have moderate to deep knowledge of at least one programming language; basic knowledge of terminal usage will also be needed.

Having basic knowledge of computer architectures is a plus, along with basic knowledge of high-performance programming in C/C++. They are not required, though, since in this book we will cover all the base theory to understand how the performance improvements work behind the scenes.

You will need a code editor or an IDE to follow the book. Rust has been heavily tested in Microsoft's Visual Studio Code, GitHub's Atom, and IntelliJ's IDEA IDE. I have personally used Atom to write the code examples, but feel free to use your favorite text editor or IDE. You will probably find plugins or extensions for your editor.

In the case of VS Code, Atom, and IntelliJ IDEA, you will find official Rust packages along with unofficial extensions. Personally, I've been using the Tokamak package for Atom.

Download the example code files

You can download the example code files for this book from your account at www.packtpub.com. If you purchased this book elsewhere, you can visit www.packtpub.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

1. Log in or register at www.packtpub.com.
2. Select the SUPPORT tab.
3. Click on Code Downloads & Errata.
4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR/7-Zip for Windows
• Zipeg/iZip/UnRarX for Mac
• 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/Rust-High-Performance. In case there's an update to the code, it will be updated on the existing GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "The iterator will not run until you call collect() method or use it in a loop. Those are the moments in which the next() method gets executed."

A block of code is set as follows:

    for row in arr1.iter().cartesian_product(arr2.iter()) {
      print!("{:?}, ", row);
    }

Any command-line input or output is written as follows:

cargo install --no-default-features --features sqlite diesel_cli

Bold: Indicates a new term, an important word, or words that you see onscreen.

Warnings or important notes appear like this.

Tips and tricks appear like this.