I discovered this when I read about ClickOS [0], a unikernel that builds on the Click modular router. Check this out: &quot;ClickOS virtual machines are small
(5MB), boot quickly (about 30 milliseconds), add little
delay (45 microseconds) and over one hundred of them
can be concurrently run while saturating a 10Gb pipe on
a commodity server&quot;<p>[0] <a href="https:&#x2F;&#x2F;www.usenix.org&#x2F;system&#x2F;files&#x2F;conference&#x2F;nsdi14&#x2F;nsdi14-paper-martins.pdf" rel="nofollow">https:&#x2F;&#x2F;www.usenix.org&#x2F;system&#x2F;files&#x2F;conference&#x2F;nsdi14&#x2F;nsdi14...</a>