Apples and Oranges, LXD vs. KVM

LXD crushes KVM, Canonical says

Today Canonical released a benchmark pitting LXD against KVM promising vast improvements in performance.

On average, LXD guests started in 1.5 seconds, while KVM guests took 25 seconds to start.

I understand somewhat the reasoning: “LXD brings some of the advantages of virtualisation to LXC so we should compare it to KVM”. But still this comparison is very silly and quite unfair. KVM starts a full guest OS while LXD launches a containerized environment.  I wonder why they didn’t benchmark against Docker? Also nothing was said about the security advantages one gets by a separate kernel namespace in KVM vs containers 😉

The point one should probably take away from this is: Use the right tool for the job!

Valbonne Consulting provides Research & Consulting for emerging technologies in Internet/Web of Things (WoT/IoT/M2M) and Emerging-Tech. We specialise in decentralisation, security and privacy. We work across a variety of traditional industry verticals (Telecommunications, Automotive, Energy, ...). We support Open Source and technologies built on open standards.

Joachim Bauernberger

Passionate about Open Source, GNU/Linux and Security since 1996. I write about future technology and how to make R&D faster. Expatriate, Entrepreneur, Adventurer and Foodie, currently living near Nice, France.

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