FIX: High CPU usage after you reduce the value of the CAP_CPU_PERCENT argument in creating a resource pool


Consider the following scenario:
  • You use Resource Governor in Microsoft SQL Server 2014.
  • You create a resource pool by specifying the CAP_CPU_PERCENT argument with a value that's much less than the default value. For example, the default value is 100, and you specify a value of 20. 
  • You create a workload group that uses the given resource pool.
  • You connect to the instance of SQL Server, and the connection is classified to consume the given workload group.
  • You run queries through the connection.
In this scenario, the CPU usage is higher than expected, and you experience decreased performance when SQL Server process queries.


The issue was first fixed in the following cumulative updates of SQL Server:
Recommendation: Install the latest cumulative update for SQL Server


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


文章 ID:3097073 - 上次审阅时间:2015年10月19日 - 修订版本: 1