Performance Tuning and Benchmarking

Have you ever wondered how to determine if your Go code is performing at its best?

Benchmarks help you spot slow code and fix it. They also help you choose the best data structures and algorithms. By the end of this book, you will know how to write benchmarks that guide your engineering decisions.

How to prevent panics in Go

Imagine you are sitting relaxed in a self-driving car. You are taking a sip of your afternoon tea. You are going to your friend’s wedding.

You are getting closer to a crossroad, and your car is about to change direction. Suddenly, the car detects an obstacle on the road—a fallen tree!

How can you not panic?

How to break production on Black Friday

Users won’t do this! No way! Why would they enter such values? It doesn’t make sense! Does it sound familiar? How many times have you said it to yourself?

Well… You are about to see and learn how a missing test puts thousands of production Kubernetes systems in danger.

Damn! It worked last week!

It takes ages for the newsfeed to load. Scrolling on the tablet is slower than normal. Applications are not starting as smoothly as they did a week ago.

You are getting frustrated. You recall the last change you pushed to production. No, it couldn’t be that simple change! Are you sure?

We are ready to experience the reality.

Enter the world of benchmarking and code archaeology!