8e7de45034
Computing EndpointChanges is a relatively expensive operation for kube-proxy when Endpoint Slices are used. This had been computed on every EndpointSlice update which became quite inefficient at high levels of scale when multiple EndpointSlice update events would be triggered before a syncProxyRules call. Profiling results showed that computing this on each update could consume ~80% of total kube-proxy CPU utilization at high levels of scale. This change reduced that to as little as 3% of total kube-proxy utilization at high levels of scale. It's worth noting that the difference is minimal when there is a 1:1 relationship between EndpointSlice updates and proxier syncs. This is primarily beneficial when there are many EndpointSlice updates between proxier sync loops. |
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Kubernetes
Kubernetes is an open source system for managing containerized applications across multiple hosts. It provides basic mechanisms for deployment, maintenance, and scaling of applications.
Kubernetes builds upon a decade and a half of experience at Google running production workloads at scale using a system called Borg, combined with best-of-breed ideas and practices from the community.
Kubernetes is hosted by the Cloud Native Computing Foundation (CNCF). If your company wants to help shape the evolution of technologies that are container-packaged, dynamically scheduled, and microservices-oriented, consider joining the CNCF. For details about who's involved and how Kubernetes plays a role, read the CNCF announcement.
To start using Kubernetes
See our documentation on kubernetes.io.
Try our interactive tutorial.
Take a free course on Scalable Microservices with Kubernetes.
To start developing Kubernetes
The community repository hosts all information about building Kubernetes from source, how to contribute code and documentation, who to contact about what, etc.
If you want to build Kubernetes right away there are two options:
You have a working Go environment.
mkdir -p $GOPATH/src/k8s.io
cd $GOPATH/src/k8s.io
git clone https://github.com/kubernetes/kubernetes
cd kubernetes
make
You have a working Docker environment.
git clone https://github.com/kubernetes/kubernetes
cd kubernetes
make quick-release
For the full story, head over to the developer's documentation.
Support
If you need support, start with the troubleshooting guide, and work your way through the process that we've outlined.
That said, if you have questions, reach out to us one way or another.