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The HashSet in the Hot Spot

Here's a quick way to get some extra efficiency out of your PagerState.

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The title of this post reminds me of a Bones episode. This blog post is actually from an internal mail made by Federico Lois, as part of bigger perf work.


Here is the calling code, note that this is typically called many times, and _pageStates is a HashSet<PagerState>.


The following change was made:


And here are the results:


That is 230% improvement! I can identify with the sentiment.

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Published at DZone with permission of Ayende Rahien, DZone MVB. See the original article here.

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