this post was submitted on 16 Aug 2025
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Extra security and full isolation with its own kernel, so you can load kernel modules and such.
Also can run Windows in a VM when needed, or MacOS.
VMs are basically just as fast as containers, and the RAM overhead from a lightweight Linux VM is very small.
VMs are not just as fast as containers.
I didn't say that, I said almost! Generally disk IO is where VMs fall short on performance vs a container, but it's usually a pretty small difference.