Book Image

Delphi High Performance

By : Primož Gabrijelčič
Book Image

Delphi High Performance

By: Primož Gabrijelčič

Overview of this book

Delphi is a cross-platform Integrated Development Environment (IDE) that supports rapid application development for Microsoft Windows, Apple Mac OS X, Google Android, iOS, and now Linux with RAD Studio 10.2. This book will be your guide to build efficient high performance applications with Delphi. The book begins by explaining how to find performance bottlenecks and apply the correct algorithm to fix them. It will teach you how to improve your algorithms before taking you through parallel programming. You’ll then explore various tools to build highly concurrent applications. After that, you’ll delve into improving the performance of your code and master cross-platform RTL improvements. Finally, we’ll go through memory management with Delphi and you’ll see how to leverage several external libraries to write better performing programs. By the end of the book, you’ll have the knowledge to create high performance applications with Delphi.
Table of Contents (16 chapters)
Title Page
Copyright and Credits
Packt Upsell

Third-party libraries

While this book focuses almost exclusively on the out-of-the-box Delphi experience, sometimes I do point to external libraries that can simplify your programming experience. In the context of this chapter, such libraries are Spring4D ( and OmniThreadLibrary (

Spring4D is a multipurpose library with very limited support for parallel programming. It is, however, widely used in the Delphi community. If you are already using it, you may find the following notes helpful.

I've said before that creating and destroying TCriticalSection objects is a pain. To fix that, Spring4D introduces a Lock record which doesn't require initialization. You just declare a variable of that type and then use its Enter and Leave methods.

Another useful Spring4D addition is the optimistic initializer, TLazyInitializer. In the section Object life cycle, I've shown how to safely initialize the FSharedObject: TSharedObject variable and it was not very simple...