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November 17–November 20, 2020
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Thursday, November 19 • 5:40pm - 6:15pm
Practice of Fine-grained Cgroups Resources Scheduling in Kubernetes - Xianlu Chen & Qingcan Wang, Alibaba

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Alibaba supports resource scheduling for hundreds of thousands of nodes, millions of containers, and tens of thousands of applications. Many online services need to dynamically increase the resource limit during operation, and cannot accept the impact of restart.Other applications may require NUMA awareness, CPU Core binding, reduce data copy between CPU caches, and speed up data processing tasks.

We have developed a combined scheduling system based on Kubernetes Scheduler framework and Cgroups controller. The scheduler perceives cgroups level resources, such as numa, cpu core, memory limit, etc., and applies scheduler dynamic scheduling to specified nodes, while allowing certain Pod is bound to the specified cpu core. The cgroups controller can also dynamically adjust the pod resources limit without causing the Pod to restart.

avatar for Qingcan Wang

Qingcan Wang

Senior Engineer, Alibaba
Kubernetes member, currently serves in Alibaba Cloud and focus on large scale cluster management and scheduling. Love open source culture and participate in community activities.
avatar for Xianlu Chen

Xianlu Chen

Senior Developer, Alibaba
Kubernetes & Docker contributor, Kubernetes & Argo & Helm group member, author of "Handwritten Docker" book. Working in Alibaba Cloud and focus on the layout of container technology and basic environment research. Loving open source culture and actively participate in the development... Read More →

Thursday November 19, 2020 5:40pm - 6:15pm EST
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