Another reason why your #docker #containers may be slow
▻https://hackernoon.com/another-reason-why-your-docker-containers-may-be-slow-d37207dec27f?sourc
In my last blog post I was talking about Kubernetes and how ThoughtSpot uses it for its dev infrastructure needs. Today I’d like to follow up on that with a rather short but interesting #debugging story that happened recently. It re-iterates on the fact that containerization != virtualization and demonstrates how containerized processes can compete for resources even if all cgroup limits are set to reasonable values, and there’s plenty of computing power available on the host machine.So, we were using our internal Kubernetes cluster to run a bunch of CI/CD and dev-related workflows, and everything was going great except one thing: when launching Dockerized copies of our product, we saw a much much worse #performance than we expected. Each of our containers had generous CPU and memory limits (...)