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Azure SQL Performance

No database platform is immune for potential performance issues. So any tool that can help me spot performance issues is a welcome addition to my toolbox.

Recently I noticed the following project on Github: https://github.com/JMNetwalker/PerfCollector. This project contains a Powershell script that can find some common causes of performance issues in Azure SQL Server:

  • Check if the statistics

    • If number of rows in the statistics is different of rows_sampled.
    • If we have more than 15 days that the statistics have been updated.

  • Check if we have any auto-tuning recomendations

  • Check if the statistics associated to any index is:

    • If number of rows in the statistics is different of rows_sampled.
    • If we have more than 15 days that the statistics have been updated.

  • Check if MAXDOP is 0

  • Check if we have an index with more than 50% fragmented

  • Check if we have missing indexes

  • Check if we have command execution timeout

 More information here.

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