In OpenStack jargon, an Instance is a Virtual Machine, the guest workload. It boots from an operating system image, and it is configured with a certain amount of CPU, RAM and disk space, amongst other parameters such as networking or security settings.
In this blog post kindly contributed by Marko Myllynen we’ll explore nine configuration and optimization options that will help you achieve the required performance, reliability and security that you need for your workloads.
Some of the optimizations can be done inside a guest regardless of what has the OpenStack Cloud Administrator enabled in your cloud.
Read more at Red Hat blog
