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How Bad Are Page Splits

Speaker:

Mike Byrd

Abstract:

We’ve always been told that Bad Page Splits hurt performance, but there is little showing actual performance decrements. This session will review the difference between good and bad page splits and continue with an example highlighting the performance decrements encountered during a bad page split as well as the on-going effects of the bad page split on a SELECT query. Results for this example indicate a much larger performance hit than anticipated.

Bio:

Former rocket scientist and USAF Fighter Pilot — now a SQL Server geek (24 years)! Past opportunities include free-lance technical writer for PC Magazine, Senior Software Manager for government sponsored munitions effectiveness committee, and insurance company CTO. Currently senior database engineer consultant for several Austin companies. Presenter at 17 SQL Sat sessions in 2016, 10 in 2017, 8 in 2018 (Cambridge) and Chicago, Jacksonville, Dallas, Pensacola, Austin, and Baton Rouge in 2019; as well as several local SQL Server user’s groups in Ft. Worth, Austin, and San Antonio; and 2 Virtual DBA presentations in 2018.

Recorded At:

Austin SQL Meetup

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