How To Fix SMMSS_ALERTS010 - SQL Server using &1% of CPU

SAP Error Message - Details

• Message type: E = Error

• Message class: SMMSS_ALERTS - Message class for MSSQL rz20 messages

• Message number: 010

• Message text: SQL Server using &1% of CPU

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SMMSS_ALERTS010 - SQL Server using &1% of CPU ?

  The SAP error message SMMSS_ALERTS010 indicates that a SQL Server instance is using a high percentage of CPU resources, specifically more than a specified threshold (in this case, &1%). This can lead to performance issues in your SAP system, as high CPU usage can slow down database operations and affect overall system performance.
  Causes
  
  High Query Load: A large number of concurrent queries or poorly optimized queries can lead to high CPU usage.
  Missing Indexes: Queries that require full table scans due to missing or inefficient indexes can consume excessive CPU resources.
  Inefficient SQL Statements: Some SQL statements may not be optimized, leading to high resource consumption.
  Blocking and Deadlocks: If processes are waiting on each other, it can lead to increased CPU usage as the server tries to manage these locks.
  Configuration Issues: SQL Server configuration settings, such as memory allocation or parallel processing settings, may not be optimal.
  Background Processes: Maintenance tasks, such as backups or index rebuilding, can temporarily increase CPU usage.
  
  Solutions
  
  
  Identify Resource-Intensive Queries:
  
  Use SQL Server's built-in tools like SQL Server Profiler or Extended Events to identify which queries are consuming the most CPU.
  Analyze the execution plans of these queries to find inefficiencies.
  
  
  
  Optimize Queries:
  
  Rewrite inefficient queries to reduce CPU usage.
  Ensure that queries are using indexes effectively.
  
  
  
  Create or Update Indexes:
  
  Analyze the workload and create missing indexes or update existing ones to improve query performance.
  
  
  
  Review SQL Server Configuration:
  
  Check SQL Server settings related to memory and CPU allocation. Ensure that the server is configured to use resources efficiently.
  Consider adjusting the max degree of parallelism setting if parallel processing is causing excessive CPU usage.
  
  
  
  Monitor and Manage Background Processes:
  
  Schedule maintenance tasks during off-peak hours to minimize their impact on CPU usage during peak times.
  
  
  
  Check for Blocking:
  
  Use tools like sp_who2 or sys.dm_exec_requests to identify blocking sessions and resolve them.
  
  
  
  Update Statistics:
  
  Ensure that statistics are up to date, as outdated statistics can lead to inefficient query plans.
  
  
  
  Consider Hardware Upgrades:
  
  If the workload has increased significantly, it may be necessary to upgrade the hardware to handle the load more effectively.
  
  
  
  Related Information
  
  Monitoring Tools: Use SQL Server Management Studio (SSMS) and performance monitoring tools to keep an eye on CPU usage and identify trends over time.
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to performance issues with your version of SAP and SQL Server.
  Documentation: Refer to SQL Server documentation for best practices on performance tuning and optimization.
  
  By following these steps, you can diagnose and address the high CPU usage issue indicated by the SMMSS_ALERTS010 error message in your SAP system.