Measuring disk latency on GKE

[Warren Strange]

Stackdriver will show me disk IOPS and throughput for PD disks.

How do I measure disk latency?   I have a suspicion that a service is slow because of latency (my PD disks are operating well below their potential IOPS).

iostat does not seem to be installed on the COS nodes. 

Suggestions welcome

[Ahmet Alp Balkan]

You can have CoreOS toolbox on GKE COS nodes: https://cloud.google.com/container-optimized-os/docs/how-to/toolbox

Just type "toolbox" when you SSH into the node.

--
You received this message because you are subscribed to the Google Groups "Kubernetes user discussion and Q&A" group.
To unsubscribe from this group and stop receiving emails from it, send an email to kubernetes-users+unsubscribe@googlegroups.com.
To post to this group, send email to kubernetes-users@googlegroups.com.
Visit this group at https://groups.google.com/group/kubernetes-users.
For more options, visit https://groups.google.com/d/optout.

[Warren Strange]

That worked great - thanks for the clue stick. 

On Friday, February 2, 2018 at 12:22:53 AM UTC-7, Ahmet Alp Balkan wrote:

You can have CoreOS toolbox on GKE COS nodes: https://cloud.google.com/container-optimized-os/docs/how-to/toolbox

Just type "toolbox" when you SSH into the node.

On Thu, Feb 1, 2018 at 8:20 PM, Warren Strange <warren....@gmail.com> wrote:

Stackdriver will show me disk IOPS and throughput for PD disks.

How do I measure disk latency?   I have a suspicion that a service is slow because of latency (my PD disks are operating well below their potential IOPS).

iostat does not seem to be installed on the COS nodes. 

Suggestions welcome

--
You received this message because you are subscribed to the Google Groups "Kubernetes user discussion and Q&A" group.

To unsubscribe from this group and stop receiving emails from it, send an email to kubernetes-use...@googlegroups.com.
To post to this group, send email to kubernet...@googlegroups.com.