News for hackers. Stuff that matters.

A comment on AWS Adds support for nested virtualization. Parent comment

Re:AWS Adds support for nested virtualization by parhamn on Thursday February 12, 2026 @08:15PM (#46997705)
whats the ~ perf hit of something like this?
[ Parent | on HN ]
Re:AWS Adds support for nested virtualization by largbae on Thursday February 12, 2026 @08:25PM (#46997786)
Nowadays nested just wastes the extra operating system overhead and I/O performance if your VM doesn't have paravirtualization drivers installed. CPUs all have hardware support.
[ Parent | on HN ]
Re:AWS Adds support for nested virtualization by otterley on Thursday February 12, 2026 @08:40PM (#46997895)
As a practical matter, anywhere from 5-15%.
[ Parent | on HN ]