In Chapter 3, Working with Docker Images, we saw, how Dockerfiles can be used to create images consisting of different services/software and later in Chapter 4, Network and Data Management for Containers, we saw, how one Docker container can talk to the outside world with respect to data and network. In Chapter 5, Docker Use Cases, we looked into the different use cases of Docker, and in Chapter 6, Docker APIs and Language Bindings, we looked at how to use remote APIs to connect to a remote Docker host.

Ease of use is all good, but before going into production, performance is one of the key aspects that is considered. In this chapter, we'll see the performance impacting features of Docker and what approach we can follow to benchmark different subsystems. While doing performance evaluation, we need to compare Docker performance against the following:

In the chapter, we will look at the approach you can follow to do...