Unexpected CPU Throttling on Ubuntu 20.04 When Running Docker Containers
I'm confused about I'm sure I'm missing something obvious here, but After trying multiple solutions online, I still can't figure this out..... This might be a silly question, but I've been struggling with this for a few days now and could really use some help... I am experiencing unexpected CPU throttling on my Ubuntu 20.04 server when running multiple Docker containers. The server has an Intel i7 processor, and I noticed that one of my containers, which runs a Node.js application, is frequently hitting the CPU limit, leading to performance degradation. I've checked the resource utilization using `top` and `htop`, and indeed, the CPU usage for this container often spikes to 100%. However, I have set CPU limits in the Docker configuration to prevent this, but it seems like they are being ignored. Here is the relevant part of my Docker run command: ```bash docker run --name my-node-app -d --cpus="1.0" my-node-image ``` I also tried using `docker update` to adjust the CPU constraints on a running container, but it didn't change the behavior: ```bash docker update --cpus="1.0" my-node-app ``` Additionally, I have checked the Docker daemon configuration, and it seems to be set up correctly. The output from `docker info` shows that the CPU quota is enabled, but I still see high CPU throttling in the logs: ``` Throttling: 50 ``` Could this be a kernel scenario, or is there something I'm missing in Docker's CPU management? I've also tried upgrading Docker to the latest version, but the scenario continues. Any insights into what might be causing this throttling would be greatly appreciated. Any ideas what could be causing this? How would you solve this? I'm working on a API that needs to handle this. The stack includes Bash and several other technologies. I'd be grateful for any help. The stack includes Bash and several other technologies. Is there a simpler solution I'm overlooking?