Monday, November 19, 2018

MSSQL - Database CPU Usage










Scripts to generate the CPU usage of a database.



DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks)FROM sys.dm_os_sys_info); 

SELECT TOP(30) SQLProcessUtilization AS [SQL Server Process CPU Utilization], 
               SystemIdle AS [System Idle Process], 
               100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], 
               DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] 
FROM ( 
         SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, 
                     record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') 
                     AS [SystemIdle], 
                     record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 
                     'int') 
                     AS [SQLProcessUtilization], [timestamp] 
         FROM ( 
                     SELECT [timestamp], CONVERT(xml, record) AS [record] 
                     FROM sys.dm_os_ring_buffers 
                     WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' 
                     AND record LIKE '%%') AS x 
         ) AS y 
ORDER BY record_id DESC;



Currently the CPU usage is showing per minutes.
To change the CPU usage table to every 10 minutes.
change the value below from -1 to -10.