Delphi High Performance

By : Primož Gabrijelčič

4.8 (9)

Buy this Book

Delphi High Performance

4.8 (9)

By: Primož Gabrijelčič

Buy this Book

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.

Preface

Who this book is for

What this book covers

To get the most out of this book

Get in touch

Free Chapter

About Performance

What is performance?

Algorithm complexity

Don't guess, measure!

Summary

Fixing the Algorithm

Responsive user interfaces

Caching

Speeding up SlowCode

Summary

Fine-Tuning the Code

Delphi compiler settings

Extracting common expressions

The helpful CPU window

Behind the scenes

Optimizing method calls

The magic of pointers

Going the assembler way

Returning to SlowCode

Summary

Memory Management

Optimizing strings and array allocations

Memory management functions

Dynamic record allocation

FastMM internals

Memory allocation in a parallel world

Replacing the default memory manager

Fine-tuning SlowCode

Summary

Getting Started with the Parallel World

Processes and threads

When to parallelize the code?

Most common problems

Synchronization

Communication

Third-party libraries

Summary

Working with Parallel Tools

TThread

Setting up a communication channel

Summary

Exploring Parallel Practices

Tasks and patterns

Variable capturing

Tasks

Async/Await

Join

Future

Parallel for

Pipelines

Summary

Using External Libraries

Using object files

Using C++ libraries

Summary

Best Practices

About performance

Fixing the algorithm

Fine-tuning the code

Memory management

Getting started with the parallel world

Working with parallel tools

Exploring parallel practices

Using external libraries

Final words

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The helpful CPU window

In situations similar to the previous example, it doesn't hurt if you can look at the generated assembler code to check what is going on behind the scenes. Luckily, Delphi IDE provides a great way to do just that.

I will be the first to admit that examining assembler code is not for everyone. You can be a great Delphi programmer and still have no idea how to read assembler instructions.

If you found yourself in the previous words, don't worry. This section is included just for people who want to know everything. You can safely skip it knowing that you'll still be able to understand everything else in the book. However, if you're still interested then, by all means, read on!

The Delphi IDE gives us a few different tools for viewing the low-level state of the code and computer. They are stowed away in the not-so-obvious submenu View, Debug...