CXPACKET vs Max_DOP

  • Yeah and sometimes I think the increasing number of bloggs is actually responsible for more problems then they try to solve. To be blunt a 2Gb std edition is not a high performance system so this is unlikely to be relevent - notice also the "it just depends" Too often people pick up on snippets of information, missunderstand, and then apply as what they think is a fix and actually cause more problems.

    You need to know exactly what is causing the cxpacket locks/waits before making changes - my experience over the years has shown this to be poor application/database design/code and in 99% of the time can be resolved by effective indexing and more efficiant sql code.

    [font="Comic Sans MS"]The GrumpyOldDBA[/font]
    www.grumpyolddba.co.uk
    http://sqlblogcasts.com/blogs/grumpyolddba/

  • In my case, I see CXPACKET waits while rebuilding indexes.  The other CXPACKET waits could well be due to design and code.  However, a setting change or hardware update is a lot cheaper and easier than herding cats. 

    RandyHelpdesk: Perhaps Im not the only one that does not know what you are doing. 😉

  • To be honest making changes to server settings to resolve parallelism is akin to removing 6 spark plugs from your V8 to avoid going over 30mph in a built up area.

    [font="Comic Sans MS"]The GrumpyOldDBA[/font]
    www.grumpyolddba.co.uk
    http://sqlblogcasts.com/blogs/grumpyolddba/

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