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


This chapter dove deep into the murky waters of memory managers. We started on the light side with a discussion of strings, arrays and how memory for them is managed.

After that, I enumerated all memory management functions exposed by Delphi. We saw how we can allocate memory blocks, change their size, and free them again. We also learned about memory management functions designed to allocate and release managed data—strings, interfaces, dynamic arrays, and so on.

The next part of the chapter was dedicated to records. We saw how to allocate them, how to initialize them, and even how to make dynamically allocated records function together with generic types. We also saw that records are not just faster to create than objects, but also uses less memory.

Then we went really deep into the complicated world of memory manager implementation. I explained—from a very distant viewpoint—how FastMM is organized internally and what tricks it uses to speed up frequently encountered situations.