3 ms·

The Xen project members list suggests otherwise: https://xenproject.org/about-us/project-members/ https://xenproject.org/about-us/project-members/ Even if it i

The Xen project members list suggests otherwise: https://xenproject.org/about-us/project-members/ https://xenproject.org/about-us/project-members/ Even if it is a custom hypervisor, AWS likely derived it from Xen and sponsors the project to continue doing so.

deleted 4y ago
[deleted]
plam503711 4y ago
It's not a custom Xen: it's *is* Xen (AFAIK, with possibly their own patch queue for some specific needs on top of it). What's custom is the toolstack around it :)
- Thev00d00 4y ago
  nitro is KVM based
- schainks 4y ago
  Yeah that's what I thought, but I couldn't find definitive proof besides old posts from the early days.
paulfurtado 4y ago
Since 2017, all new aws instance types have been "nitro", which is based on kvm https://www.brendangregg.com/blog/2017-11-29/aws-ec2-virtualization-2017.html https://www.brendangregg.com/blog/2017-11-29/aws-ec2-virtual... AWS does continue to support older instance types, however, but only legacy workloads are using them. They actually now even run the XEN based legacy instance types on nitro. https://perspectives.mvdirona.com/2021/11/xen-on-nitro-aws-nitro-for-legacy-instances/ https://perspectives.mvdirona.com/2021/11/xen-on-nitro-aws-n...