Need help optimizing a query

  • GilaMonster (4/12/2013)


    Lynn Pettis (4/8/2013)


    jrestuccio (4/8/2013)


    Here you go, I tried to include all relevant information.

    Again thanks for helping!

    -Josh

    2) Actual execution plan as a .sqlplan file, not XML plans you included in the spreadsheets.

    SQL 2000 forum. Hence assumed to be a SQL 2000 server unless specified other. Hence no XML plans.

    Yea, missed that one.

  • SQL Server has encountered 146 occurrence(s) of IO requests taking longer than 15 seconds to complete on file [C:\Program Files\Microsoft SQL Server\MSSQL\data\tempdb.mdf] in database [tempdb] (2). The OS file handle is 0x00000438. The offset of the latest long IO is: 0x00000001224000

    I also get these errors in the log when running the usp_newratesimport on bigger jobs (jobs containing more search results aka more rows to be processed)

    I am still working on getting the execution plan.

    Thanks

    -Josh

  • jrestuccio (4/12/2013)


    [C:\Program Files\Microsoft SQL Server\MSSQL\data\tempdb.mdf] in database [tempdb] (2).

    I suspect that's a good part of the problem. If I had to guess, lots of TempDB usage and TempDB still at default config on a not-so-fast drive.

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • I've attached the execution plan as a .gif because I honestly couldn't figure out any other way to do it..........I looked at Kraig's guide and did as it said and pasted it into an excel spreadsheet.

    Also, I tried creating an index on tfx_v2_unfiltered rates as follows

    Timeinserted - asc

    hotelid - asc

    siteid - asc

    It made the stored procedure actually run slower.

    Query went from 16 seconds to 22 seconds.

    Thanks

    -Josh

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