AWS 1 vcpu is equal to how many cores?

Question

Im trying to set resource limits on some of the deployments in my k8 cluster in AWS,but i was little confused with the relation between Ec2 vcpu vs actual cores.

actaully im running a prometheus components as multiple pods ,so how can i derive the resource limit values for prometheus pods?

Like how to derive memory & cpu numbers for request and limit

Answer 1

You may want to look at these benchmarks to gain a practical idea about the power of 1 vCPU. Although they are pretty old but I believe the computing infrastructure don't change much over the years apart from adding new units and plans.

https://www.phoronix.com/review/amazon-ec2-feb2018

Answer 2

The docs here define the meaning of what Kubernetes considers as 1 CPU. 1 AWS vCPU is equivalent to 1 CPU unit in Kubernetes.