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

Chapter 3. Fine-Tuning the Code

I have stated repeatedly that the best way to improve code speed is to change the algorithm.  Sometimes, however, this is just not possible because you are already using the best possible algorithm. It may also be completely impractical as changing the algorithm may require rewriting a large part of the program.

If this is the case and the code is still not running fast enough, we have multiple available options. We can start optimizing the program, by which I mean that we can start changing small parts of the program and replacing them with faster code. This is the topic of the chapter that you are currently reading.

Another option would be to rewrite a part of the program in assembler. Delphi offers quite decent support for that and we'll look into that possibility near the end of this chapter. We can also find a library that solves our problem. It could be written in an assembler or created by a compiler that produces faster code than Delphi—typically we...