Do Not Use Docker if You Need to Boost Speed. Docker containers are smaller and require fewer resources than a virtual machine with a server and a database. At the same time, Docker will use as much system resources as the host’s kernel scheduler will allow. You should not expect Docker to speed up an application in any way.Can I run Windows OS in Docker?
Applications that run on docker are limited to applications that are natively supported by the host operating system. In other words, Docker for Windows can only host Windows applications inside Docker containers, and Docker on Linux supports only Linux apps.Does Docker need hardware virtualization?
Does Docker use Hardware Virtualization? The short answer is: no. Docker needs a 64-bit Linux OS running a modern enough kernel to operate properly. Which means if that what you have happily running on your hardware without hw virtualization support, it will be plenty enough for Docker.Is Docker free or not?
Docker is Not a Free Software. Docker With All Components is Neither Licensed Under GNU GPL Nor Docker Community Edition Offers All the Features Which Developer or Small Company Will Need. That neither means Docker is bad nor means Docker is Good. Docker Community Edition with Apache Licence has enough for most of the users.