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SWATI SEHGAL
Type maintrack
Enhancing Kubernetes Scheduler
Starts on day 1 (2021-02-06) at 14:00 (Brussels time, UTC+1) in room Misc (duration 00:30)
Matrix room #misc:fosdem.org
With Kubernetes gaining popularity for performance-critical workloads such as 5G, Edge, IoT, Telco, and AI/ML, it is becoming increasingly important to meet stringent networking and resource management requirements of these use cases. Performance-critical workloads like these require topology information in order to use co-located CPU cores and devices. Despite the success of Topology Manager, aligning topology of requested resources, the current native scheduler does not select a node based on it. It's time to solve this problem!
We will introduce the audience to hardware topology, the current state of Topology Manager, gaps in the current scheduling process, and prior out-of-tree solutions. We'll explain the workarounds available right now: custom schedulers, creating scheduling extensions, using node selectors, or manually assigning resources semi-automatically. All these methods have their drawbacks.
Finally, we will explain how we plan to improve the native scheduler to work with Topology Manager. Attendees will learn both current workarounds, and the future of topology aware scheduling in Kubernetes.