SQL2012 much slower compared with SQL2008R2

  • I have tried using the exactly same hardware, just insert 5000 records into a simple blank table, results:

    sql2008R2 standard: 5100ms

    sql2012 standard: 6500ms

    It seems like the performance has dropped nearly 30%, anyone can help?

  • This might be an issue with Management Studio, not with SQL Server itself.

    Try simulating a heavy workload with SSIS or with BCP, and see what happens.

    Need an answer? No, you need a question
    My blog at https://sqlkover.com.
    MCSE Business Intelligence - Microsoft Data Platform MVP

  • i do not think it's caused by Management Studio itself, as I already tried create job, create stored proc, results the same, SQL2012 slower than SQL2008R2 for the same simple insert/delete queries (I have not tried update and select yet).

  • Are you seeing difference in I/O or CPU Time? Duration is notoriously unreliable in these kinds of comparisons.

  • Take a look at the actual query plans. Is there anything different?

    (also, more than 5 seconds just to insert 5000 rows? There seems something off at your system)

    Need an answer? No, you need a question
    My blog at https://sqlkover.com.
    MCSE Business Intelligence - Microsoft Data Platform MVP

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