Book Image

Hands-On High Performance with Go

By : Bob Strecansky
Book Image

Hands-On High Performance with Go

By: Bob Strecansky

Overview of this book

Go is an easy-to-write language that is popular among developers thanks to its features such as concurrency, portability, and ability to reduce complexity. This Golang book will teach you how to construct idiomatic Go code that is reusable and highly performant. Starting with an introduction to performance concepts, you’ll understand the ideology behind Go’s performance. You’ll then learn how to effectively implement Go data structures and algorithms along with exploring data manipulation and organization to write programs for scalable software. This book covers channels and goroutines for parallelism and concurrency to write high-performance code for distributed systems. As you advance, you’ll learn how to manage memory effectively. You’ll explore the compute unified device architecture (CUDA) application programming interface (API), use containers to build Go code, and work with the Go build cache for quicker compilation. You’ll also get to grips with profiling and tracing Go code for detecting bottlenecks in your system. Finally, you’ll evaluate clusters and job queues for performance optimization and monitor the application for performance regression. By the end of this Go programming book, you’ll be able to improve existing code and fulfill customer requirements by writing efficient programs.
Table of Contents (20 chapters)
Section 1: Learning about Performance in Go
Section 2: Applying Performance Concepts in Go
Section 3: Deploying, Monitoring, and Iterating on Go Programs with Performance in Mind

Go clean – cleaning your build directory

The Go command builds binaries in a temporary directory. The go clean command was created in order to remove extraneous object files that are created by other tools or when go build is manually invoked. Go clean has a usage stanza of go clean [clean flags] [build flags] [packages].

The following flags are available for the clean command:

  • The -cache flag removes the entire go build cache. This can be helpful if you're trying to compare a fresh build across multiple systems or if you'd like to see the amount of time a fresh build takes.
  • The -i flag removes the archive or binary that go install creates.
  • The -n flag is a noop; printing the result removes commands but doesn't execute them.
  • The -r flag applies logic recursively to all the dependencies of the import path's packages.
  • The -x flag prints and executes the...