De-mystifying Interrupt Balancing - Irqbalance

Explore the intricacies of interrupt balancing and the irqbalance daemon in this 46-minute conference talk from linux.conf.au. Delve into the challenges of balancing interrupts across various system types, from enterprise-level to mobile devices. Learn about NUMA locality, bus hierarchy, shared interrupts, and cache locality considerations. Gain insights into the Linux kernel's role in interrupt balancing, policy enforcement, and current best practices. Discover future improvements and ideas for optimizing interrupt balancing operations. Understand the importance of proper interrupt balancing for system performance and efficiency across different hardware contexts.

Intro
Agenda
PJ Wasowicz
What is balancing interrupts
IO devices
Why is it important
Contexts
Hardware vs Software
How can interrupt balancing go wrong
How does irqbalance work
What does irqbalance do
Policy enforcement
Balancing techniques
Hint policy
Summary