How To Fix VIRT181 - CPU Bottleneck Indicator

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 181

• Message text: CPU Bottleneck Indicator

What causes this issue?

Indicator for CPU health of virtual machine
value range from 0-10: with increasing value, the state is more critical
0,1,2,3,4,5: status green
6,7: status yellow
8,9,10: status red

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 VIRT181 - CPU Bottleneck Indicator ?

  The SAP error message VIRT181, which indicates a "CPU Bottleneck Indicator," typically arises when the system detects that the CPU resources are being overutilized, leading to performance issues. This can occur in various scenarios, such as during peak processing times, inefficient coding, or inadequate hardware resources.
  Cause:
  
  High Workload: A sudden increase in transactions or background jobs can lead to CPU overload.
  Inefficient Code: Poorly optimized ABAP code or inefficient SQL queries can consume excessive CPU resources.
  Configuration Issues: Incorrect system configuration or insufficient hardware resources can lead to CPU bottlenecks.
  Background Jobs: Running too many background jobs simultaneously can strain CPU resources.
  System Settings: Inadequate settings for the application server or database can contribute to CPU bottlenecks.
  
  Solution:
  
  Analyze Workload: Use transaction codes like ST03N (Workload Analysis) to analyze the workload and identify the transactions or jobs consuming the most CPU.
  Optimize Code: Review and optimize any inefficient ABAP code or SQL queries. Use tools like the ABAP Runtime Analysis (transaction SE30) to identify performance issues.
  Adjust Background Jobs: Schedule background jobs during off-peak hours to reduce CPU load during peak times.
  Increase Hardware Resources: If the CPU bottleneck is persistent, consider upgrading the hardware (e.g., adding more CPU cores or upgrading to a faster processor).
  System Configuration: Review and adjust system parameters related to CPU usage, such as the number of work processes and their configuration.
  Monitor Performance: Continuously monitor system performance using tools like SAP Solution Manager or transaction ST06 to proactively identify and address CPU bottlenecks.
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that may provide specific guidance or patches related to CPU performance issues.
  Performance Tuning Guides: Refer to SAP's performance tuning guides for best practices on optimizing system performance.
  SAP Community: Engage with the SAP Community for insights and shared experiences from other users facing similar issues.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the CPU bottleneck indicated by the VIRT181 error message and improve overall system performance.