Having a significant performance issue with a Windows POD in AKS compared to similarly sized VM equivalent

David Roy 0 Reputation points
2023-07-18T14:53:42.87+00:00

Have a Windows-based Container environment built, running in an AKS environment. The application performance (IIS-based Application) in the POD is significantly slower than a similarly sized VM - even when the VM is using all OTHER constructs the same (App Gateway, SQL, Storage Account, etc).

Pure IIS serving works well with quite low latency of a response. An ASP page being served is working very slowly at even small scale.

Issue is that despite enabling insights and looking for bottlenecks - none are being found. No quota issues are being seen, no IO issues it seems, CPU is well under the threshold of concern... but perhaps I am just not getting the visibility needed.

Any "insights" you may have would be appreciated!

Azure Kubernetes Service (AKS)
Azure Kubernetes Service (AKS)
An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.
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