I was initially going to just do a writeup on this blog, but I asked the folks at LWN if they were interested.. and they were! This is my first article for LWN. I’ve followed the site and the excellent content for a really long time, and now I’m very thrilled to also be an author.
We recently celebrated 25 years of Linux on the 25th anniversary of the famous email Linus sent to announce the start of the Linux project. Going by the same yardstick, today marks the 10th anniversary of the KVM project — Avi Kivity first announced the project on the 19th Oct, 2006 by this posting on LKML:
KVM was subsequently merged in the upstream kernel on the 10th December 2006 (commit 6aa8b732ca01c3d7a54e93f4d701b8aabbe60fb7). Linux 2.6.20, released on 4 Feb 2007 was the first kernel release to include KVM.
KVM has come a long way in these 10 years. I’m writing a detailed post about some of the history of the KVM project — stay tuned for that. [Update 3 Nov 2016: I’ve written that article now at LWN.net: https://lwn.net/Articles/705160/]
One of my aims for this talk was to introduce people to the concepts behind virtualization and containers, explain that these aren’t really new technologies, and why there’s so much interest in them of late.
I also think there’s a lot of misinformation spread around these topics, so this was also an attempt to set some facts straight.
The slides are here, and I will post an update with the link to the video.
The talk introduced the KVM stack (Linux, KVM, QEMU, libvirt) and live migration; introduced ways the higher layers (especially oVirt and OpenStack) use KVM and migration, and what challenges the KVM team faces in working with varying use-cases and new features added to make migration work, and work faster.
There was a video recording, I will post the link to it in a separate post.