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Hands-On High Performance with Go

You're reading from   Hands-On High Performance with Go Boost and optimize the performance of your Golang applications at scale with resilience

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Product type Paperback
Published in Mar 2020
Publisher Packt
ISBN-13 9781789805789
Length 406 pages
Edition 1st Edition
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Author (1):
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Bob Strecansky Bob Strecansky
Author Profile Icon Bob Strecansky
Bob Strecansky
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Table of Contents (20) Chapters Close

Preface 1. Section 1: Learning about Performance in Go
2. Introduction to Performance in Go FREE CHAPTER 3. Data Structures and Algorithms 4. Understanding Concurrency 5. STL Algorithm Equivalents in Go 6. Matrix and Vector Computation in Go 7. Section 2: Applying Performance Concepts in Go
8. Composing Readable Go Code 9. Template Programming in Go 10. Memory Management in Go 11. GPU Parallelization in Go 12. Compile Time Evaluations in Go 13. Section 3: Deploying, Monitoring, and Iterating on Go Programs with Performance in Mind
14. Building and Deploying Go Code 15. Profiling Go Code 16. Tracing Go Code 17. Clusters and Job Queues 18. Comparing Code Quality Across Versions 19. Other Books You May Enjoy

Understanding Go generate

As of Go version 1.4, the language contains a tool that helps with code generation, called Go generate. Go generate scans source code for general commands to run. This operates independently of go build, and thus must be run before code is built. Go generate is run by the code author, not by users of the compiled binary. This tool runs similarly to how Makefiles and shell scripts are typically used, but it is packaged with the Go tool and we don't need to include any other dependencies.

Go generate will search the code base for lines with the following pattern: //go:generate command argument.

A generated source file should have a line such as the following, in order to convey that the code was generated:

^// Code generated .* DO NOT EDIT\.$

Go generate utilizes a group of variables when the generator is run:

  • $GOARCH: The architecture of the executing...
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