Guide to the Go GC

You can find the official guide to the Go Garbage Collector at https://tip.golang.org/doc/gc-guide.

According to the web page:

This guide is intended to aid advanced Go users in better understanding their application costs by providing insights into the Go garbage collector. It also provides guidance on how Go users may use these insights to improve their applications’ resource utilization. It does not assume any knowledge of garbage collection, but does assume familiarity with the Go programming language.

You can also check this https://www.mtsoukalos.eu/Go-Garbage-Collector/.