Well that is pretty provocative :-) Bryan might be surprised to learn that for its first 15 years of its existence NetApp filers were Unikernels in production. And they out performed NFS servers hosted on OSes quite handily throughout that entire time :-).<p>The trick though is they did only one thing (network attached storage) and they did it very well. That same technique works well for a variety of network protocols (DNS, SMTP, Etc.). But you can do that badly too. We had an orientation session at NetApp for new employees which helped them understand the difference between a computer and an appliance, the latter had a computer inside of it but wasn&#x27;t progammable.