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<p>They are probably thinking of Vmware ESXi, which is both an
operating system kernel, named vmkernel, and a hypervisor. <br>
</p>
<p>OpenStack is not a hypervisor. It <i>uses </i>hypervisors to
manage virtual machines. Furthermore, OpenStack is written in
Python, so that, as a minimum, your "baremetal" would have to be
able to run Python code.<br>
</p>
On 7/2/2018 11:45 PM, Jay Pipes wrote:<br>
<blockquote type="cite"
cite="mid:16443207-a393-b881-fca1-caeebb58efda@gmail.com">On
07/02/2018 09:45 AM, Houssam ElBouanani wrote:
<br>
<blockquote type="cite">Hi,
<br>
<br>
I have recently finished installing a minimal OpenStack Queens
environment for a school project, and was asked whether it is
possible to deploy an additional compute node on bare metal, aka
without an underlying operating system, in order to eliminate
the operating system overhead and thus to maximize performance.
<br>
</blockquote>
<br>
Whomever asked you about this must be confusing a *hypervisor*
with an operating system. Using baremetal means you eliminate the
overhead of the *hypervisor* (virtualization). It doesn't mean you
eliminate the operating system. You can't do much of anything with
a baremetal machine that has no operating system on it.
<br>
<br>
Best,
<br>
-jay
<br>
<br>
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