How To Fix VIRT318 - Avg. phys. CP Usage

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 318

• Message text: Avg. phys. CP Usage

Avg. phys. CP Usage
Average percentage of the total utilization of the physical
processors(CP) by the partition within the last collection interval.
This data is based on the total interval time of all physical processors
and includes LPAR management time.

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VIRT318 - Avg. phys. CP Usage ?

  The SAP error message VIRT318, which refers to "Avg. phys. CP Usage," typically indicates that the average physical CPU usage is exceeding a certain threshold. This can be a sign of performance issues within the SAP system, often related to resource allocation, workload management, or system configuration.
  Cause:
  
  High Workload: The system may be experiencing a high volume of transactions or background jobs that are consuming significant CPU resources.
  Inefficient Code: Custom ABAP programs or poorly optimized queries can lead to excessive CPU usage.
  Configuration Issues: Incorrect settings in the SAP system or the underlying database can lead to inefficient resource utilization.
  Hardware Limitations: The physical hardware may not be sufficient to handle the workload, leading to high CPU usage.
  Background Processes: Background jobs or processes that are not optimized can consume more CPU than necessary.
  
  Solution:
  
  Monitor System Performance: Use transaction codes like ST03N (Workload Analysis) and ST06 (Operating System Monitor) to analyze CPU usage and identify bottlenecks.
  Optimize ABAP Code: Review and optimize any custom ABAP programs or reports that may be consuming excessive CPU resources.
  Adjust Background Jobs: Schedule background jobs during off-peak hours or optimize them to reduce CPU load.
  Increase Hardware Resources: If the workload consistently exceeds the capacity of the current hardware, consider upgrading the CPU or adding additional resources.
  Review Configuration: Check the configuration settings in SAP and the database to ensure they are optimized for performance.
  Load Balancing: If applicable, distribute the workload across multiple application servers to balance CPU usage.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to CPU usage or performance tuning.
  Performance Tuning Guides: Refer to SAP's performance tuning guides for best practices on optimizing system performance.
  System Monitoring Tools: Utilize SAP Solution Manager or other monitoring tools to keep track of system performance and identify trends over time.
  
  By addressing the underlying causes of high CPU usage, you can improve the overall performance of your SAP system and reduce the occurrence of the VIRT318 error message.