kubectl top nodes命令仅给出CPU和内存使用情况，如何在Kubernetes集群中获取GPU使用情况信息？

Question

I'm using Kubernetes 1.7 and I have a GPU machine in the cluster. The kubectl top nodes gives only CPU and Memory usage like this

NAME       CPU(cores)   CPU%      MEMORY(bytes)   MEMORY%
machine1   183m         1%        5284Mi          8%
machine2   181m         1%        5543Mi          8%
machine3   250m         1%        7682Mi          7%
machine4   328m         5%        1578Mi          16%

Is there a way to get GPU usage ?

Answer 1

I'm afraid that kubectl top does not provide GPU metrics, regardless if drivers are installed or not.

To inspect GPU statistics, I recommend using Heapster monitoring tool and Prometheus that provides the extension to get the accelerator metrics.

At last, you may be interested in Nvidia GPU works for Kubernetes and GCE concepts of using this kind of hardware.