Performance Issues on App Engine Standard Environment
Question
Your application performs well when tested locally, but it runs significantly slower when you deploy it to App Engine standard environment.
You want to diagnose the problem.
What should you do?
Answers
Explanations
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When an application performs well locally but runs significantly slower when deployed to the App Engine standard environment, it's important to diagnose the problem to identify the root cause of the performance issue. There are several steps you can take to diagnose the problem, including:
Check the App Engine environment: Make sure that the App Engine environment is properly configured and that all necessary services are enabled. Check for any configuration issues that may be causing the performance problem.
Check the application code: Review the application code to ensure that it is optimized for the App Engine environment. This may include making sure that the application is using the appropriate APIs, libraries, and runtime environments.
Use Stackdriver Debugger Snapshots: Use Stackdriver Debugger Snapshots to examine a point-in-time execution of the application. This can help you identify any issues with the code that may be causing the performance problem.
Use Stackdriver Trace: Use Stackdriver Trace to determine which functions within the application have higher latency. This can help you identify the root cause of the performance problem and optimize the code.
Add logging commands: Add logging commands to the application and use Stackdriver Logging to check where the latency problem occurs. This can help you identify any specific areas of the application that may be causing the performance problem.
In this scenario, the best option would be to use Stackdriver Trace to determine which functions within the application have higher latency. Stackdriver Trace provides a detailed breakdown of the time spent on each function call, making it easy to identify where the performance problem is occurring. Once the problem has been identified, you can optimize the code to improve performance.
While adding logging commands and using Stackdriver Logging can also help identify the root cause of the performance problem, it may not provide as detailed information as Stackdriver Trace. Similarly, filing a ticket with Cloud Support indicating that the application performs faster locally may not be helpful in diagnosing the issue, as it does not provide any information about the root cause of the performance problem.
