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SQL SERVER : CPU


SQL SERVER : CPU

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OracleBoy
OracleBoy
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Hi , Someone can help me : I want a script that return me the consummation of CPU for last week (last 7 days ) Ermm .
John Mitchell-245523
John Mitchell-245523
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Have you tried the dm_os_performance_counters DMV?

John
Grant Fritchey
Grant Fritchey
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You won't be able to show that kind of a time period unless you first set up mechanism for capturing the metrics over time in order to aggregate it. Otherwise, as suggested, you can see what's currently in the sys.dm_os_performance_counters Dynamic Management Object (DMO). But, that's just the current value.

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Orlando Colamatteo
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You can see the last 256 minutes from sys.dm_os_ring_buffers.

Query courtesy of Glenn Berry's diagnostic query script:

-- Get CPU Utilization History for last 256 minutes (in one minute intervals)  (Query 23)
-- This version works with SQL Server 2008 and SQL Server 2008 R2 only
DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks)FROM sys.dm_os_sys_info);

SELECT TOP(256) 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 WITH (NOLOCK)
WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR'
AND record LIKE N'%<SystemHealth>%') AS x
) AS y
ORDER BY record_id DESC OPTION (RECOMPILE);



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OracleBoy
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Thank you , I'll take a look ;-)
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