sp_BlitzCache®: Find Your Worst-Performing Queries
You have a SQL Server and you’re not sure which queries are causing your biggest performance problems. You don’t know where to start or if there are hidden queries that are making your main queries slower. You want a fast tool to find the worst queries in the SQL Server plan cache, tell you why they’re bad, and even tell you what you can do about them. sp_BlitzCache® provides the in-depth analysis that you’re looking for. Here’s how it works.
@SortOrder – find the worst queries sorted by reads, CPU, duration, executions, memory grant, or recent compilations. Just use sp_BlitzCache @SortOrder = ‘reads’ for example.
@Top – by default, we only look at the top 10 queries, but you can use a larger number here like @Top = 50. Just know that the more queries you analyze, the slower it goes.
@ExpertMode = 1 – turns on the more-detailed analysis of things like memory grants. (Some of this information is only available in current SP/CUs of SQL Server 2012/2014, and all 2016.) @ExportToExcel = 1 – excludes result set columns that would make Excel blow chunks when you copy/paste the results into Excel, like the execution plans. Good for sharing the plan cache metrics with other folks on your team.
@Help = 1 – explains the rest of sp_BlitzCache’s parameters, plus the output columns as well.
How to learn more and get support
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sp_BlitzCache is a fantastic tool for finding the worst queries in your SQL Server. Did you know that it has a number of advanced options available to you? These options can help you dig into your worst queries, slice and dice the data, and get back exactly what you need, without wading through hundreds of results.…