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Who Stole My CPU? Steal Time Mitigation at Digital Ocean

Linux Plumbers Conference via YouTube

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Overview

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Explore the intricacies of CPU steal time mitigation in virtualized environments through this 30-minute conference talk from the Linux Plumbers Conference. Delve into the phenomenon of steal time occurring even without hypervisor overcommitment, and learn about DigitalOcean's approach to improving hypervisor hardware utilization. Discover the kernel heuristics causing steal, the implementation of a userspace daemon to disable these heuristics, and the challenges encountered in the process. Gain insights into synthetic examples, idle games, and practical implementation strategies for optimizing virtualized systems.

Syllabus

Introduction
Synthetic example
Idle games
Implementation
Userspace

Taught by

Linux Plumbers Conference

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