Go Optimizations 101

This book provides some code performance optimization tricks, tips, and suggestions, which include

how to consume less CPU resources.
how to consume less memory.
how to make less memory allocations.
how to control memory allocation places.
how to reduce garbage collection pressure.

The book is Go 1.20 ready now (update history).

(Please follow Go 101's official Twitter account @go100and1 to get latest Go 101 news and learn all kinds of Go knowledge.)

(about 150 pages, 75+ facts and suggestions)

The digital versions of this book are available at the following places:

Leanpub store, $9.99+ (Or buy this book through this or this book bundle).
Apple Books store, $9.99.
Amazon Kindle store, $9.99.
Google Play store, $9.99.

Honestly speaking, the book is worth $20+.

Tapir, the author of Go 101, has been on writing the Go 101 series books and maintaining the go101.org website since July 2016. New contents are still being (and will be) continually added to the book series and the website from time to time.

Tapir is also an indie game developer. If you would like to, you can also support the book and the website by playing Tapir's games (made for both Android and iPhone/iPad). Individual donations are also accepted via PayPal.

Thanks to Olexandr Shalakhin for the permission of using one of the wonderful gopher icon images in the book cover.

Index:

Acknowledgments
About Go Optimizations 101
Value Parts and Value Sizes ^{(available in the paid ebooks)}

value/type sizes
memory alignments
struct padding
avoid larger copy costs

Memory Allocations
Stack and Escape Analysis ^{(available in the paid ebooks)}

escape analysis
how to control value allocation places
stacks growth and shrinkage
how to reduce stack grow times

Garbage Collection ^{(available in the paid ebooks)}

GC pacer
how to reduce GC pressure
control GC frequency

Pointers
Structs ^{(available in the paid ebooks)}

3 facts/suggestions

Arrays and Slices ^{(available in the paid ebooks)}

10+ facts/suggestions

String and Byte Slices ^{(available in the paid ebooks)}

10+ facts/suggestions

BCE (Bound Check Eliminate) ^{(available in the paid ebooks)}

the cases BCE works for
the cases BCE doesn't work for
the cases BCE works for when given hints

Maps
Channels ^{(available in the paid ebooks)}

3 facts/suggestions

Functions ^{(available in the paid ebooks)}

how to make a function inline-able
how to make a function not inline-able
pointer parameters/results vs. non-pointer ones
named results vs. anonymous ones
10+ facts/suggestions

Interfaces ^{(available in the paid ebooks)}

value boxing costs
3+ facts/suggestions

The Go 101 프로젝트는 Github 에서 호스팅됩니다. 오타, 문법 오류, 부정확한 표현, 설명 결함, 코드 버그, 끊어진 링크와 같은 모든 종류의 실수에 대한 수정 사항을 제출하여 Go 101을 개선을 돕는 것은 언제나 환영합니다.

주기적으로 Go에 대한 깊이 있는 정보를 얻고 싶다면 Go 101의 공식 트위터 계정인 @go100and1을 팔로우하거나 Go 101 슬랙 채널에j가입해주세요.

Go 101의 저자인 Tapir는 2016년 7월부터 Go 101 시리즈 책들을 집필하고 go101.org 웹사이트를 유지 관리하고 있습니다. 새로운 콘텐츠는 책과 웹사이트에 수시로 추가될 예정입니다. Tapir는 인디 게임 개발자이기도 합니다. Tapir의 게임을 플레이하여 Go 101을 지원할 수도 있습니다. (안드로이드와 아이폰/아이패드용):

Color Infection (★★★★★), 140개 이상의 단계로 이루어진 물리 기반의 캐주얼 퍼즐 게임
Rectangle Pushers (★★★★★), 2가지 모드와 104개 이상의 단계로 이루어진 캐주얼 퍼즐 게임
Let's Play With Particles, 세가지 미니 게임이 있는 캐주얼 액션 게임

페이팔을 통한 개인 기부도 환영합니다.