Book Image

Mastering High Performance with Kotlin

Book Image

Mastering High Performance with Kotlin

Overview of this book

The ease with which we write applications has been increasing, but with it comes the need to address their performance. A balancing act between easily implementing complex applications and keeping their performance optimal is a present-day requirement In this book, we explore how to achieve this crucial balance, while developing and deploying applications with Kotlin. The book starts by analyzing various Kotlin specifcations to identify those that have a potentially adverse effect on performance. Then, we move on to monitor techniques that enable us to identify performance bottlenecks and optimize performance metrics. Next, we look at techniques that help to us achieve high performance: memory optimization, concurrency, multi threading, scaling, and caching. We also look at fault tolerance solutions and the importance of logging. We'll also cover best practices of Kotlin programming that will help you to improve the quality of your code base. By the end of the book, you will have gained some insight into various techniques and solutions that will help to create high-performance applications in the Kotlin environment
Table of Contents (12 chapters)

Ranges and Identifying Performance Issues

A range represents an interval or a set of real values. Each value in this set lies between two other values, which represent the start and the end of the range. Kotlin has classes that represent ranges and functions for its creation.

There are three common types of range:

  • A range of variables: A set of values defined by start and end values (for instance, the range -3 to 3 includes -3, -2, -1, 0, 1, 2, and 3)
  • The range of an array: A range that's bound by the first and last values of an array
  • The range of an iterator: This means that the range can be iterated over each value

In this chapter, we will cover the following topics:

  • Ranges in Kotlin
  • Range benchmarking