Modernizing the Meta Ads Service With an Open-Source Kernel Scheduler
Meta addressed potential latency issues in its ad serving fleet caused by a Linux kernel upgrade by implementing a customized scheduling policy using the BPF-based sched_ext framework to optimize ad delivery performance.
MAIN POINTS
- Meta faced latency degradation risks due to a Linux kernel upgrade.
- The company used sched_ext, an extensible scheduling framework, to address these issues.
- A customized scheduling policy was developed to optimize ad delivery.
- The solution aimed to maintain high performance in Meta's ad serving operations.
TAKEAWAYS
- Even minor latency increases can significantly impact ad performance at Meta's scale.
- Custom scheduling policies can effectively mitigate potential performance regressions.
- Open-source frameworks like sched_ext offer flexibility for tailored solutions.
- Continuous optimization is crucial for maintaining efficient ad service delivery.