How To Fix RT853 - Processor Frequency

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 853

• Message text: Processor Frequency

What causes this issue?

Denotes the processor clock rate.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT853 - Processor Frequency ?

  The SAP error message RT853, which relates to "Processor Frequency," typically indicates an issue with the system's hardware configuration, specifically regarding the CPU frequency settings. This error can arise in various contexts, such as during system checks, performance evaluations, or when executing specific transactions.
  Cause:
  
  Inconsistent CPU Frequency: The error may occur if the CPU frequency reported by the operating system does not match the expected frequency set in the SAP system.
  Hardware Configuration Issues: Changes in hardware, such as CPU upgrades or changes in BIOS settings, can lead to discrepancies in reported frequencies.
  Virtualization Issues: If the SAP system is running in a virtualized environment, the virtual CPU settings may not align with the physical CPU capabilities.
  Power Management Settings: Aggressive power management settings can cause the CPU to throttle down, leading to frequency mismatches.
  
  Solution:
  
  Check CPU Configuration: Verify the CPU settings in the BIOS/UEFI. Ensure that the CPU is configured to run at its maximum frequency and that any power-saving features are set appropriately.
  Update SAP Kernel: Ensure that you are using the latest version of the SAP kernel, as updates may include fixes for hardware compatibility issues.
  Review Virtualization Settings: If running in a virtual environment, check the settings of the virtual machine to ensure that the allocated CPU resources match the physical hardware capabilities.
  Monitor CPU Performance: Use monitoring tools to check the actual CPU frequency during operation. This can help identify if the CPU is being throttled due to power management settings.
  Consult SAP Notes: Look for relevant SAP Notes or Knowledge Base Articles that may address this specific error. SAP frequently updates its documentation with solutions for known issues.
  Contact Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  SAP Notes: Search for SAP Notes related to RT853 or processor frequency issues in the SAP Support Portal.
  System Requirements: Review the hardware requirements for your specific SAP version to ensure compatibility.
  Performance Tuning: Consider performance tuning best practices for SAP systems, which may include optimizing CPU settings and configurations.
  
  By addressing the underlying causes and following the suggested solutions, you should be able to resolve the RT853 error and ensure that your SAP system operates efficiently.