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SQL Server 11.0.3401 - CPU 100% - HELP

Last Modified: 2016-06-03

We are having odd issues where the CPU usage is increased to 100%, the process is SQL service. I have tried to investigate what could be the cause by using the following commands:

select * from sys.dm_exec_query_stats order by total_worker_time desc
select * from sys.dm_exec_query_stats order by execution_count desc
select * from sys.dm_exec_query_plan(0x0600050021785620D065754C0100000001000000000000000000000000000000000000000000000000000000)

However what I do not know, what is best practice to investigate this. Any help on this matter will be appreciated.


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