[Mono-dev] string hash code collisions

Marek Safar marek.safar at seznam.cz
Mon Jul 21 07:28:32 EDT 2008

Hello Cetin,
> I tested string hash code collisions in mono and .NET and saw that 
> mono's hash code algorithm for strings lead to almost the same 
> collisions with java whereas .NET seems to perform better with 0 
> collisions in both tests.
Your observation is correct. Mono string GetHashCode has bad hash 
distribution. This is something we should fix in future and I have some 
code ready locally. If you can provide representative sample data it 
would help me to test our new implementation.


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