Book Image

Delphi High Performance - Second Edition

By : Primož Gabrijelčič
5 (1)
Book Image

Delphi High Performance - Second Edition

5 (1)
By: Primož Gabrijelčič

Overview of this book

Performance matters! Users hate to use programs that are not responsive to interactions or run too slow to be useful. While becoming a programmer is simple enough, you require dedication and hard work to achieve an advanced level of programming proficiency where you know how to write fast code. This book begins by helping you explore algorithms and algorithmic complexity and continues by describing tools that can help you find slow parts of your code. Subsequent chapters will provide you with practical ideas about optimizing code by doing less work or doing it in a smarter way. The book also teaches you how to use optimized data structures from the Spring4D library, along with exploring data structures that are not part of the standard Delphi runtime library. The second part of the book talks about parallel programming. You’ll learn about the problems that only occur in multithreaded code and explore various approaches to fixing them effectively. The concluding chapters provide instructions on writing parallel code in different ways – by using basic threading support or focusing on advanced concepts such as tasks and parallel patterns. By the end of this book, you’ll have learned to look at your programs from a totally different perspective and will be equipped to effortlessly make your code faster than it is now.
Table of Contents (15 chapters)

Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “This default value can be changed in the code by inserting {$INLINE ON}, {$INLINE OFF}, or {$INLINE AUTO} into the source.”

A block of code is set as follows:

{$IFOPT O+}{$DEFINE OPTIMIZATION}{$ELSE}{$UNDEF OPTIMIZATION}{$ENDIF}
{$OPTIMIZATION ON}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

{$IFOPT O+}{$DEFINE OPTIMIZATION}{$ELSE}{$UNDEF OPTIMIZATION}{$ENDIF}
{$OPTIMIZATION ON}

Any command-line input or output is written as follows:

3
3,6

Bold: Indicates a new term, an important word, or words that you see on screen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “They all always work in an unsorted mode, so adding an element takes O(1), while finding and removing an element takes O(n) steps.”

Tips or important notes

Appear like this.