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SQL SERVER : CPU

  • March 22, 2013 at 5:18 am

    #272476

    Hi , Someone can help me : I want a script that return me the consummation of CPU for last week (last 7 days ) :ermm: .

  • March 22, 2013 at 5:32 am

    #1599723

    Have you tried the dm_os_performance_counters DMV?

    John

  • March 22, 2013 at 6:39 am

    #1599745

    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.

    ----------------------------------------------------The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood... Theodore RooseveltThe Scary DBAAuthor of: SQL Server 2017 Query Performance Tuning, 5th Edition and SQL Server Execution Plans, 3rd EditionProduct Evangelist for Red Gate Software

  • March 22, 2013 at 10:26 am

    #1599866

    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);

    There are no special teachers of virtue, because virtue is taught by the whole community.
    --Plato

  • March 22, 2013 at 10:29 am

    #1599871

    Thank you , I'll take a look 😉

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