How can logging impact a Golang backend?

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2024-05-14 12:30:08

This article is the answer to a small question I have always asked myself developing a backend. How much logging impact the performance? Is there a good reason why we keep the logging level to ERROR in production?

Since I was already playing with my Golang backend for my hobby project binary-duel, I decided to add a simple route with two configurable parameters:

I used https://www.npmjs.com/package/autocannon to load test this route with different (number of logs, size) combination, and finally extract metrics. The idea is to send as many requests as possible in 10 seconds.