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iOS and macOS Performance Tuning: Cocoa, Cocoa Touch, Objective-C, and Swift (Developer's Library) 1st Edition

by Marcel Weiher (Author)
4.5 4.5 out of 5 stars 14 ratings
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In iOS and macOS™ Performance Tuning, Marcel Weiher drills down to the code level to help you systematically optimize CPU, memory, I/O, graphics, and program responsiveness in any Objective-C, Cocoa, or CocoaTouch program.

This guide focuses entirely on performance optimization for macOS and iOS. Drawing on more than 25 years of experience optimizing Apple device software, Weiher identifies concrete performance problems that can be discovered empirically via measurement. Then, based on a deep understanding of fundamental principles, he presents specific techniques for solving them.

Weiher presents insights you won’t find anywhere else, most of them applying to both macOS and iOS development. Throughout, he reveals common pitfalls and misconceptions about Apple device performance, explains the realities, and helps you reflect those realities in code that performs beautifully.

  • Understand optimization principles, measurement, tools, pitfalls, and techniques
  • Recognize when to carefully optimize, and when it isn’t worth your time
  • Balance performance and encapsulation to create efficient object representations, communication, data access, and computation
  • Avoid mistakes that slow down Objective-C programs and hinder later optimization
  • Fix leaks and other problems with memory and resource management
  • Address I/O issues associated with drives, networking, serialization, and SQLite
  • Code graphics and UIs that don’t overwhelm limited iOS device resources
  • Learn what all developers need to know about Swift performance

This book’s source code can be downloaded at github.com/mpw/iOS-macOS-performance.

Register your product at informit.com/register for convenient access to downloads, updates, and corrections as they become available.

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  1. ISBN-10
    0321842847
  2. ISBN-13
    978-0321842848
  3. Edition
    1st
  4. Publisher
    Addison-Wesley Professional
  5. Publication date
    February 23, 2017
  6. Part of series
    Game Design
  7. Language
    English
  8. Dimensions
    6.9 x 1 x 8.9 inches
  9. Print length
    400 pages
  10. See all details
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Editorial Reviews

About the Author

Marcel Weiher is a software engineeer and researcher with more than 25 years of experience with Cocoa-related technologies. Marcel’s work has always been performance-focused, ranging from solving impossible pre-press problems on the machines of the day via optimizing one of the world’s busiest web properties at the BBC to helping other Apple engineers improve the performance of their code on Apple’s Mac OS X performance team.

In addition to helping established companies and startups create award-winning software and turn around development teams, Marcel also teaches, blogs, speaks at conferences, contributes to open source, and invents new techniques such as Higher Order Messaging. He also works on programming languages, starting with an Objective-C implementation in 1987 and culminating in the Objective-Smalltalk architecture research language. Marcel currently works as a principal software engineer at Microsoft Berlin and maintains his own software and consulting company, metaobject ltd.

Product details

  • Publisher ‏ : ‎ Addison-Wesley Professional; 1st edition (February 23, 2017)
  • Language ‏ : ‎ English
  • Paperback ‏ : ‎ 400 pages
  • ISBN-10 ‏ : ‎ 0321842847
  • ISBN-13 ‏ : ‎ 978-0321842848
  • Item Weight ‏ : ‎ 1.36 pounds
  • Dimensions ‏ : ‎ 6.9 x 1 x 8.9 inches
  • Customer Reviews:
    4.5 4.5 out of 5 stars 14 ratings

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Marcel Weiher

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Customer reviews

4.5 out of 5 stars
14 global ratings

Customers say

Customers find the book's information useful, rich with helpful examples, and a goldmine of usable optimization information. They also appreciate the candor and candor of the author. Readers describe the writing quality as well-written, thoughtful, and accessible to beginners.

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Information contentWriting quality
4 customers mention "Information content"4 positive0 negative

Customers find the book's information useful, rich with helpful examples, and a goldmine of usable optimization information. They say the principles are timeless, and they expect the book to remain relevant.

"...This book is rich with helpful examples showing how to circle in upon a performance issue which might not be obvious at first blush...." Read more

"...It's clearly based on long experience and full of information that, as far as I know, is not available anywhere else: measurements, explanations for..." Read more

"Very talented writer, lots of useful information. Could use better editing: more than a few typos and the level of the book bounces around a lot." Read more

"Just a goldmine of usable optimization information that you'll never find anywhere else - phenomenal..." Read more

3 customers mention "Writing quality"3 positive0 negative

Customers find the book well-written, thoughtful, and accessible to beginners. They also say the author is talented.

"This book is well written, thoughtful, and accessible to beginning developers. If you're new to the platform this is a must-read...." Read more

"...The writing is concise and filled with little nuggets of insight...." Read more

"Very talented writer, lots of useful information. Could use better editing: more than a few typos and the level of the book bounces around a lot." Read more

Top reviews from the United States

ian rust
5.0 out of 5 stars Just a goldmine of usable optimization information that you'll never find anywhere else - phenomenal
Reviewed in the United States on December 28, 2020
Verified Purchase
I'll just briefly go point by point:
-it's not written in beginner language, you need a good general knowledge of computer science and objC to take advantage
-though it's primarily about objc, it talks about swift too. You'll learn plenty about both, and most of what you learn has applications in both languages. And alot of what you learn in this book applies broadly - like tagged pointers, for example. Any language that supports pointers can implement that. Smalltalk implements it, apparently
-there are so many useful things about performance you'd never find anywhere else and would not think of.
-my tests indicate most of the performance issues and optimizations apply to Swift as well as objC, and still hold up today
-you might be surprised to learn that ObjC outperforms Swift significantly when correctly optimized (despite the general dogma this is still true today, I've ran the tests myself) - you'll learn there's a serious use case for objC at a time when so many people are saying there's zero reason to ever use it.
-you will need to do a slight bit of research a few times in conjunction with reading the book - like on how to compile swift from the command line to run the tests, which he didn't specify, for example. There are also a few minor bugs in some of the code, and he doesn't explain some of his code examples well (not a beginners book). Nonetheless this isn't worth taking off a star, the knowledge in this book is just too valuable
-you're just going to gain so much deeper understanding of how these languages work in the process of studying their performance characteristics
-he's an expert in performance with something approaching 30 years of experience, was an apple engineer on their performance team...
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Gary W. Longsine
5.0 out of 5 stars If you're an experienced iOS / macOS developer you'll find this book to be like an extended conversation with a long-time expert
Reviewed in the United States on April 1, 2017
Verified Purchase
This book is well written, thoughtful, and accessible to beginning developers. If you're new to the platform this is a must-read. If you're an experienced iOS / macOS developer you'll find this book to be like an extended conversation with a long-time expert. It's more than helpful and the author's candor is refreshing. Marcel Weiher has opinions based on deep experience, and he knows the difference between an opinion and an objective fact. This book is rich with helpful examples showing how to circle in upon a performance issue which might not be obvious at first blush. Developers, if you work on a team you'll want your managers to read this book, too. (I am the CEO of illumineX, inc, maker of custom software for large enterprises and consumer software for macOS and iOS. I'm going to give a copy of this book to every developer on my team.)
6 people found this helpful
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Michael
5.0 out of 5 stars The Best Non-Beginner Apple/Cocoa Development Book Available
Reviewed in the United States on December 29, 2017
Verified Purchase
I hardly ever write reviews, but this book is really excellent. It's the rare programming book that is API-specific but not just a reformulation of the documentation. It's clearly based on long experience and full of information that, as far as I know, is not available anywhere else: measurements, explanations for why things are the way they are, and examples of code that doesn't work the way you might expect. I've been programming Cocoa for almost 20 years, so I had figured out many of the specific points on my own, but I read the book cover-to-cover and don't feel that any of my time was wasted. The writing is concise and filled with little nuggets of insight. The principles are timeless, so I expect this book to remain relevant and even be of interest to programmers using other platforms.
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Stephen L
5.0 out of 5 stars lots of useful information. Could use better editing
Reviewed in the United States on May 2, 2017
Verified Purchase
Very talented writer, lots of useful information. Could use better editing: more than a few typos and the level of the book bounces around a lot.
2 people found this helpful
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Blake Lucchesi
5.0 out of 5 stars Great book for understanding iOS performance
Reviewed in the United States on June 30, 2019
Verified Purchase
Highly recommended to anyone looking to tune their apps
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JJ
5.0 out of 5 stars Respected Engineer, New Classic Treatise
Reviewed in the United States on April 27, 2017
Marcel is a former Apple engineer who's thoughts and opinions are strong, well-informed and are still well-respected within that large pool of excellent software minds. This book is awesome and if you intend to do anything on a macOS or iOS (or any other Apple platform) do buy and read this book. Wisdom and experience and yes strongly worded pragmatism throughout.
I will add to it that Mr. Weiher is well known as an advocate of all of the things SmallTalk brought to Objective-C and you should understand the perspective he presents is that Objective-C is a strong and flexible language. Understanding this will make more sense in reading the book.
3 people found this helpful
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Amazon Customer
1.0 out of 5 stars One Star
Reviewed in the United States on March 15, 2017
Absolutely terrible!
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FX
5.0 out of 5 stars A must-have for anyone serious about writing performant code on Apple's platforms.
Reviewed in the United States on January 4, 2018
Developing for the Mac for more than 13 years and many other operating systems and CPU architectures for more than two decades, I've learnt a lot about what makes code performant. Yet I still learnt new things and picked up new ideas reading this book. If you're serious about writing performant code (not only) for Apple's platforms, I can wholeheartedly recommend this unique collection of knowledge, opinions and advice.
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Top reviews from other countries

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N. DOERNER
5.0 out of 5 stars Must-Read für alle Mac- und iOS-Entwickler!
Reviewed in Germany on January 4, 2018
Verified Purchase
Das Programmieren von hübschen Programmen für den Mac oder das iPhone wird heute immer leichter, leistungsfähige Frameworks machen es einfach, auch komplexe Benutzerschnittstellen mit wenigen Mausklicks zusammenzubauen, und dann mit Leben zu füllen.

Aber was, wenn so ein Programm eines Tages richtig große Datenmengen verarbeiten muß? Wenn sich die Anwender beschweren, daß es langsamer und langsamer wird?

Dann ist eine sorgfältige Analyse der Schwachstellen erfoderlich, genaue Performance-Mesungen, und die richtigen Entscheidungen, wie mit diesen Informationen umzugehen ist.

Genau davor schrecken leider viele Entwickler zurück. Dabei gibt es jetzt dieses wunderbare Buch, das die nötigen Schritte ausgiebig darstellt und erläutert.
Natürlich werden Tools wie Instruments von Xcode erläutert, und bis in große Details auf mögliche Performance-Fallen und ihre Lösungen eingegangen.

Auch erfahrene Entwickler können hier noch so machen Tricks lernen, daher sollte dieses Buch zum Standard-Repertoire eines jeden Entwicklers gehören.
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