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아래의 Go App을 Build해서 Kubernetes Worker Node에서 돌려보면,

각 Container가 사용하는 CPU Set(즉, Container App이 Pinning한 Core 정보), Memory Hugepages, Network 주소 및 PCI 정보를 알 수 있다.

 

 

https://github.com/openshift/app-netutil/tree/master/samples/go_app

 

GitHub - openshift/app-netutil: app-netutil is a library that provides API methods for applications to get pod network informati

app-netutil is a library that provides API methods for applications to get pod network information. - GitHub - openshift/app-netutil: app-netutil is a library that provides API methods for applicat...

github.com

 

그리고, 위 Repository에 DPDK example app container도 있으니까, DPDK 테스트할 때도 이용하면 좋다.

 

 

 

 

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NUMA with Linux

https://lunatine.net/2016/07/14/numa-with-linux/

 

NUMA with Linux :: Lunatine's Box — Lunatine's Box

linuxnumainterleaved memoryinterleavenumctlnumad 3236 Words 2016-07-14 15:18 +0900

lunatine.net

https://frankdenneman.nl/2016/07/07/numa-deep-dive-part-1-uma-numa/

 

NUMA Deep Dive Part 1: From UMA to NUMA - frankdenneman.nl

Non-uniform memory access (NUMA) is a shared memory architecture used in today’s multiprocessing systems. Each CPU is assigned its own local memory and can access memory from other CPUs in the system. Local memory access provides a low latency – high

frankdenneman.nl

 

 

 

 

HugePages

https://luis-javier-arizmendi-alonso.medium.com/enhanced-platform-awareness-epa-in-openshift-part-i-hugepages-a28e640fabf6

 

Enhanced Platform Awareness (EPA) in OpenShift — Part I, HugePages

This series of posts will show how to configure EPA support in OpenShift 4. In this part you will see 1GB HugePages configuration and usage

luis-javier-arizmendi-alonso.medium.com

 

CPU Pinning

https://luis-javier-arizmendi-alonso.medium.com/enhanced-platform-awareness-epa-in-openshift-part-ii-cpu-pinning-8e397fc9fe08

 

Enhanced Platform Awareness (EPA) in OpenShift — Part II, CPU pinning

This is the second part about how to configure an EPA ready OpenShift worker node, covering the CPU pinning and CPU isolation…

luis-javier-arizmendi-alonso.medium.com

 

 

NUMA Topology Awareness

https://luis-javier-arizmendi-alonso.medium.com/enhanced-platform-awareness-epa-in-openshift-part-iii-numa-topology-awareness-180c91c40800

 

Enhanced Platform Awareness (EPA) in OpenShift — Part III, NUMA Topology Awareness

This time we are going to focus on how we can assure that the CPU scheduling takes into account the NUMA topology of the processor

luis-javier-arizmendi-alonso.medium.com

 

 

SR-IOV, DPDK, RDMA

https://medium.com/swlh/enhanced-platform-awareness-epa-in-openshift-part-iv-sr-iov-dpdk-and-rdma-1cc894c4b7d0

 

Enhanced Platform Awareness (EPA) in OpenShift — Part IV, SR-IOV, DPDK and RDMA

In this Post we’ll review some concepts that help to minimize random latencies and improve the network performance: SR-IOV, DPDK, and RDMA.

medium.com

 

 

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KVM, OpenStack, Kubernetes, OCP 등을 사용하다보면 VM에서 또는 Container 내부에서 CPU를 Pinning하거나 NUMA Node를 지정해야 할 경우가 있는데, 이런 CPU Pinning 설정/관리에 대한 내용을 기록해볼까~~~하고 마음을 먹었다. 그러나 너무 잘 작성한 블로그와 WebDocs가 있어서 그냥 Link만 걸어두기로 마음을 바꾸었다. :)

 

 

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/5/html/virtualization/ch33s08

 

33.8. Setting KVM processor affinities Red Hat Enterprise Linux 5 | Red Hat Customer Portal

The Red Hat Customer Portal delivers the knowledge, expertise, and guidance available through your Red Hat subscription.

access.redhat.com

 

 

 

https://mhsamsal.wordpress.com/2020/05/12/how-to-perform-cpu-pinning-for-kvm-virtual-machines-and-docker-containers/

 

How to Perform CPU Pinning for KVM Virtual Machines and Docker Containers

Note: This post provides technical details for our paper “The Art of CPU-Pinning: Evaluating and Improving the Performance of Virtualization and Containerization Platforms” published in…

mhsamsal.wordpress.com

 

 

 

https://superuser.com/questions/1519358/qemu-kvm-cpu-pinning

 

QEMU/KVM cpu pinning

I have set up my VM with pci passthrough and now I am trying to set up cpupinning. How do I verify that it does in fact work? My config regarding cpu parameters: ... <vcpu placement="static">...

superuser.com

 

 

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