c# - Why is nearly all the bottleneck in my Managed application External Code? -


i wrote tool reduces number of cubes in voxel world combing them larger cubes. it's entirely managed application, written in c#, , pretty ton of searching in several hashset. does, think performance reasonable, visual studio 2015 rc profiler isn't helping me assess that.

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as can see image above, 80% of time spent in "[external code]". , doesn't seem make difference whether just code enabled or disabled each time run profiler. highly doubt it's spending 80% of time doing garbage collection, i'm wondering if might bug profiler.


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