Mitigating Noisy Neighbours: Advanced Container Resource Management
Talkat KubeCon + CloudNativeCon North America 2019 · on Wednesday, 2019-11-20· at 15:20· Hall D - San Diego Convention Center·
summary
Claims a working proof of concept that adds fine grained control beyond CPU/memory by proxying CRI calls and pushing node level knobs into runtimes and the kernel. Uses CRI proxy/resource manager that intercepts CRI-O and containerd, applies dynamic policies, writes to the Downward API, and programs L3 cache and memory bandwidth classes. Shows topology aware placement, a 2.5 versus 2 exclusive CPU example, and demos that work but await upstream APIs and fuller device support.
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chapters (15)
- 0:00Intro
- 0:47Foreword
- 2:03The "Noisy neighbour problem"
- 3:41System devices topology
- 5:18System topology in real world
- 7:00Resources in Kubernetes
- 8:45Challenges: blkio
- 10:01Challenges: resctrl
- 11:08Runtime interfaces
- 14:37OCI hooks configuration
- 16:50Runtime Classes
- 17:08Runtime Class handlers
- 18:11runc' wrapper
- 24:54CRI Resource Manager: now
- 30:02Key takeaways
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