A Mechanism to Isolate CPU Topology Information in the Linux Kernel - CPU Namespace

Explore a proposed mechanism for isolating CPU topology information in the Linux kernel through CPU namespaces. Learn about the potential utilities of CPU isolation, including providing a coherent information interface and addressing security implications in multi-tenant systems. Discover how this approach aims to extend the current pool of namespaces to virtualize CPU information, making existing interfaces context-aware. Understand the challenges of implementing CPU namespaces and their advantages over lightweight VMs like Kata Containers. Gain insights into the impact on applications running in containerized environments and the importance of coherent system views for optimal performance and security.

Introduction
Agenda
Background
Fair use
Solutions
CPU Namespace
Performance
Proof of concept
Challenges
Questions