Virtualization Unikernels in Virtualisation

eva2000 · Apr 2, 2016

Folks at Logenteries.com have an interesting article outlining what Unikernels are and their benefits.

Unikernels are the next step in virtualized computing. There is a lot of hubbub right now in the tech-o-sphere about unikernels. In fact, in many circles unikernels are thought to be the Next Big Thing. There is a lot of recent news to justify this perspective. Docker, a key player in Linux Containers, has acquired Unikernel Systems. MirageOS, the library that you use to create unikernels has solid backing from Xen and the Linux Foundation as an incubator project.

Unikernels are not going anyway soon. Having a clear understanding of unikernel technology is important to anybody working in large scale, distributed computing. Thus, I share. In this article I am going to explain the basic concepts behind unikernels and I am going to describe how they sit in the landscape of virtualized computing. Also I am going to talk about an approach to logging from within unikernels that I learned from industry expert, Adam Wick, Ph.D..
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The important thing to remember is that a VM is a full blown computer with dedicated resources. However, there is a drawback. At runtime, should your 4 core, 16 GB VM use only 1 CPU, 1 GB of RAM, the other resources will sit around unused. Remember, there’s no giving back. Your VM owns the resources whether it uses them or not. Thus, there is the possibility that you can be paying for computing that is never used. Inefficient use of resources is a very real hazard on the Virtual Machine landscape.
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Full article Logging For Unikernels

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