Hi @akshaybab ,
We would recommend using the Azure Webapp Diagnose and Solve Problem feature. This shows the average CPU percentage consumed by your app per instance. You can also use it to identify apps that are consuming maximum CPU resources on an App Service Plan hosted on Azure App Service Windows. Another thing to note is that App Services Diagnostics has now deeper and better integration with Application Insights (Azure Monitor). You can connect an Application Insights resource with App Service diagnostics and bring together the best of both worlds, allowing you to troubleshoot and debug your applications more effectively.
For more info please watch this short video or view this azure doc.
Hope that helps.
Thanks,
Grace