West US is very slow. Unusable

Question

I move both of my VM redeploying in West US. It was fine last night.

Today it's unusable. What should I do, move to West US 3?

Answer 1

Hello, @Brian Parker ! Moving your VM will address only a small subset of potential causes. Usually performance decreases are due to traffic increases or workload surges on the VM.

Why is my VM suddenly slow?

If your VM isn't performing as expected, the first troubleshooting step is to use Performance Diagnostics to determine what the cause is: https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/windows/performance-diagnostics

1. In the Azure portal, select Virtual machines.
2. From the list of VM names, select the VM that you want to run diagnostics on.
3. In the Help section, select Performance Diagnostics.
4. Select Enable Performance Diagnostics
5. Select the options to install and run for the tool.
6. Agree to the legal terms and accept the privacy policy.
7. Select Apply to apply the selected options and install the tool.

While looking at your diagnostics, keep these common VM performance issues in mind:

• Insufficient VM resources: You may need to increase your VM size (or number of VMs) if your VM is unable to handle workload peaks.
• Disk read/write performance: Confirm that the disk type and VM size you are using match your IOPS requirements and consider increasing your storage disk tier.
• Network and bandwidth: If you have high network throughput requirements, you can test throughput during peak use times. This is shared fairly among VMs using the same hardware and larger VMs are allocated relatively more bandwidth than smaller VMs.

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