Home > Link, Microsoft SQL Server, MSBI, Optimization, Query, Script, SQL Mentalist, SQL PraRup, SQL Query, SQL Server, Technology,, TSQL, Vishal Pawar > BI SQL # 143 : SQL Server DBA Scripts : High CXPacket Wait counts in an OLTP environment

BI SQL # 143 : SQL Server DBA Scripts : High CXPacket Wait counts in an OLTP environment

July 25, 2013 Leave a comment Go to comments

Hi Folks,

In this article we are going to cover the High CXPacket Wait counts in an OLTP environment.

In this post we are going to discuss following points:

  • Problem Statement of SQL Script:
  • Description of SQL Script:
  • SQL Script Output Column
  • SQL Script Code
  • SQL Script Output Screenshot
  • User Level to execute

    Problem Statement of SQL Script:

    High CXPacket Wait counts in an OLTP environment

    Description of SQL Script:

    This script allows you to capture the various wait counts over time with changing the value of you MAXDOP setting.

    SQL Script Output Column

    image

    SQL Script Code 

    CREATE TABLE #CXPacketCount (
    CaptureDate DATETIME
    ,WaitType VARCHAR(100)
    ,WaitTypeCount INT
    )

DECLARE @loopCount INT
DECLARE @MaxLoop INT

SET @loopCount = 1
SET @MaxLoop = 5

WHILE @loopCount <= @MaxLoop
BEGIN
    INSERT INTO #CXPacketCount (
        CaptureDate
        ,WaitType
        ,WaitTypeCount
        )
    SELECT GETDATE()
        ,wait_type
        ,waiting_tasks_count
    FROM sys.dm_os_wait_stats
    WHERE wait_type = 'CXPACKET'

    WAITFOR DELAY '00:00:10';

    SET @loopCount = @loopCount + 1
END

SELECT *
FROM #CXPacketCount

DROP TABLE #CXPacketCount

    SQL Script Output Screenshot

    image

    User Level to execute

      400

      Hope you will like the High CXPacket Wait counts in an OLTP environment.

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Categories: Link, Microsoft SQL Server, MSBI, Optimization, Query, Script, SQL Mentalist, SQL PraRup, SQL Query, SQL Server, Technology,, TSQL, Vishal Pawar Tags: , , , , , , , , , , , ,
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