Showing posts with label page splits. Show all posts
Showing posts with label page splits. Show all posts

Friday, 17 April 2015

Tracking Page Splits

As a DBA, performance tuning is a regular ongoing task. In my experience it is both a reactive and proactive task. The goal, though, is for your proactive efforts to minimise the time spent on the reactive. This has lead me to focus more on page splitting and index fill factor. Specifically, their interaction. There is a lot of information on the web about the benefits and dangers of fill factor and the performance implications of high rates of page splitting, so I will not go into it too much. I will discuss what I've done to monitor page splits. I then tweak fillfactor on the worst offending tables and indexes.