File Parser Benchmark
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IOBound.sln
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Readme.md

Readme.md

What is it?

IOBound reads a file with 10 million doubles and integers with different approaches to test how fast you can get with .NET Core and the full .NET Framework. It is a self contained executable which creates the test data automatically if it does not yet exist in the current directory.

Usage

The .NET 4.7.2 application is executed with

IOBound.exe

The .NET Core application as usual with

dotnet IOBound.dll

Image

Why?

I wanted to check how much faster the Span<T> based Apis of .NET Core perform compared to the regular .NET Framework. The C# 7.2 compiler supports Span<T> natively but to unlock the full performance you need support of the JIT compiler to generate truly efficient code. The Span<T> supporting JIT compiler of .NET Core will not be ported back to the regular .NET Framework due to application compatibility concerns (at least that is the story up to now Oct. 2018). Now you can check for yourself if you really need to switch over to .NET Core to squeeze out the last bit of performance or not.