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Примож Габриэльчич ВЫСОКАЯ ПРОИЗВОДИТЕЛЬНОСТЬ DELPHI Создание быстрых приложений на Delphi с использованием конкурентности, параллельного программирования и управления памятью

BIRMINGHAM - MUMBAI


Copyright © 2018 Packt Publishing

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First published: February 2018

Production reference: 1230218

Published by Packt Publishing Ltd.


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ISBN 978-1-78862-545-6

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Contributors

Об авторе

Primož Gabrijelčič started coding in Pascal on 8-bit micros in the 1980s and he never looked back. In the last 20 years, he was mostly programming high-availability server applications used in the broadcasting industry. A result of this focus was the open sourced parallel programming library for Delphi—OmniThreadLibrary. He's also an avid writer and has written several hundred articles, and he is a frequent speaker at Delphi conferences where he likes to talk about complicated topics, ranging from memory management to creating custom compilers.

Примож Габриэльчич начал кодировать на Паскале на 8-битных микрокомпьютерах в 1980-х годах и никогда не оглядывался назад. В последние 20 лет он в основном программировал серверные приложения с высокой доступностью(?), используемые в индустрии вещания. Результатом этого внимания стала библиотека параллельного программирования с открытым исходным кодом для Delphi — OmniThreadLibrary. Он также заядлый писатель, написал несколько сотен статей и часто выступает на конференциях Delphi, где любит говорить на сложные темы, начиная от управления памятью и заканчивая созданием пользовательских компиляторов.

About the reviewers

Stefan Glienke, since his very first steps with Turbo Pascal in school, was passionate about programming. In his spare time, he worked at a software company using Visual Basic and started learning C++ and Delphi and decided to start an apprenticeship as a software developer after graduation.

Over the years, he developed an interest in software architecture and began helping fellow developers improve their skills, participating in several open source projects, such as Spring4D. He is also the author of TestInsight.

Stefan has worked as reviewer on the books Coding in Delphi and Dependency Injection in Delphi.

I'd like to thank Primoz for writing this incredible book and suggesting me as a technical reviewer. I'd also like to thank Nitin Dasan and Ulhas Kambali from Packt for their help and patience. Also, big thanks go to my parents who helped me with my relocation, which was happening at the same time as I was doing this review.


Bruce McGee is the founder of Glooscap Software, a software development and consulting company in Toronto, Ontario. He is also a long-time Delphi user, which he continues to work with every day.

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Table of Contents

Title Page

Copyright and Credits

Delphi High Performance

Packt Upsell

Why subscribe?

PacktPub.com

Contributors

About the author

About the reviewers

Packt is searching for authors like you

Preface

Who this book is for

What this book covers

To get the most out of this book

Download the example code files

Conventions used

Get in touch

Reviews

About Performance

What is performance?

Different types of speed

Algorithm complexity

Big O and Delphi data structures

Data structures in practice

Mr. Smith's first program

Looking at code through the Big O eyes

Don't guess, measure!

Profiling with TStopwatch

Profilers

AsmProfiler

Sampling Profiler

AQTime

Nexus Quality Suite

Summary

Fixing the Algorithm

Responsive user interfaces

Updating a progress bar

Bulk updates

Virtual display

Caching

Dynamic cache

Speeding up SlowCode

Summary

Fine-Tuning the Code

Delphi compiler settings

Code inlining control

Optimization

Record field alignment

Assertions

Overflow checking

Range checking

Extracting common expressions

The helpful CPU window

Behind the scenes

A plethora of types

Simple types

Strings

Arrays

Records

Classes

Interfaces

Optimizing method calls

Parameter passing

Method inlining