Conference:  KubeCon + CloudNativeCon Europe 2023

Authors: Alexander Kanevskiy, Swati Sehgal, David Porter, Sascha Grunert, Evan Lezar

2023-04-19

The presentation discusses the importance of resource management in Kubernetes and highlights new features and enhancements in the ecosystem, such as the Container Device Interface (CDI) and Cgroups V2.

• The CDI allows for sharing of GPUs and devices across different containers and pods, as well as dynamic partitioning and mixing and matching of devices.
• Topology-aware scheduling is not the only use case for Node Resource Information (NRI) plugins, and top-level attributes can be used for other capabilities as well.
• Cgroups V2 provides new resource management capabilities, such as memory QoS and PSI metrics, and there are plans to explore i/o isolation and network QoS guarantees.
• The speaker encourages feedback from the audience on resource management challenges and desired features.

Conference:  KubeCon + CloudNativeCon North America 2022

Authors: Tony Gosselin, Mike Tougeron

2022-10-26

Adobe jumped into upgrading to cgroups v2 head-first and hit rocks beneath the surface. Our telemetry broke, HPA ceased to function, and then we started to notice some issues with our java apps. We ended up having to drag ourselves back to shore. However, that doesn’t mean you shouldn’t take the plunge! In this talk, we will give a background on what cgroups are (and why you should care) and how this impacts cloud-native architecture. We’ll also be touching on new cgroupv2 features in development for Kubernetes, such as tools to better manage resource utilization and an intelligent OOM killer for multi-container pods. At last spring’s KubeCon + CloudNativeCon Europe, SIG-Node shared their roadmap for Cgroups and Kubernetes, letting the community know where support for v1 and v2 is heading. This talk will help guide you in your transition and provide valuable feedback as you make the jump. Learn from our bumps and bruises, the water’s great!