How To Fix /UI5/APP_API158 - Performance measurement for &1 took &2 milliseconds

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/APP_API -

• Message number: 158

• Message text: Performance measurement for &1 took &2 milliseconds

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/APP_API158 - Performance measurement for &1 took &2 milliseconds ?

  The SAP error message /UI5/APP_API158 Performance measurement for &1 took &2 milliseconds is not necessarily an error in the traditional sense, but rather a performance measurement log that indicates how long a specific application or component took to execute. This message is part of the performance monitoring features in SAP UI5 applications, and it is intended to help developers and administrators identify performance bottlenecks.
  Cause
  The message indicates that a particular operation or function within the SAP UI5 application took a certain amount of time (in milliseconds) to complete. The &1 placeholder typically represents the name of the application or component, while &2 represents the time taken for the operation. 
  This message can be triggered by various factors, including:
  
  Inefficient code or algorithms in the application.
  Network latency or slow server response times.
  Heavy data processing or large data sets being handled by the application.
  Resource contention or limitations on the server hosting the application.
  
  Solution
  To address performance issues indicated by this message, consider the following steps:
  
  
  Analyze Performance Metrics: Use the SAP Fiori Performance Analysis tools or browser developer tools to analyze the performance metrics of your application. Look for areas where time is being spent excessively.
  
  
  Optimize Code: Review the application code for inefficiencies. This may include:
  
  Reducing the number of server calls.
  Optimizing data binding and model usage.
  Minimizing the use of complex UI controls that may slow down rendering.
  
  
  
  Improve Data Handling: If the application processes large datasets, consider implementing pagination, filtering, or lazy loading to reduce the amount of data processed at once.
  
  
  Network Optimization: Ensure that the network connection between the client and server is optimized. This may involve checking for bandwidth issues or server performance.
  
  
  Server Performance: Monitor the server's performance to ensure it has adequate resources (CPU, memory, etc.) to handle the application load. Consider scaling up resources if necessary.
  
  
  Caching Strategies: Implement caching strategies to reduce the load on the server and improve response times for frequently accessed data.
  
  
  Testing and Monitoring: Continuously test and monitor the application performance after making changes to ensure that improvements are effective.
  
  
  Related Information
  
  SAP Fiori Performance Analysis: SAP provides tools and guidelines for analyzing and improving the performance of Fiori applications. Familiarize yourself with these resources.
  SAP Notes and Documentation: Check SAP Notes for any known issues or recommendations related to performance in specific versions of SAP UI5 or Fiori.
  Community Forums: Engage with the SAP community forums or SAP Help Portal for additional insights and shared experiences from other developers facing similar issues.
  
  By following these steps, you can effectively address the performance concerns indicated by the /UI5/APP_API158 message and enhance the overall user experience of your SAP UI5 applications.