ASP.NET Core 2 High Performance - Second Edition

Hashing benchmarks

Let's do some simple benchmarking of various hash functions to see how they compare performance-wise. In the following code snippet, we define a method for running our tests, similar to the one for the previous collection benchmarks:

private static long RunTest(Action func, int runs = 1000) 
{ 
    var s = Stopwatch.StartNew(); 
    for (int j = 0; j < runs; j++) 
    { 
        func(); 
    } 
    s.Stop(); 
    return s.ElapsedMilliseconds; 
} 

We include the following using statement:

using System.Security.Cryptography; 

Next, we define a short private constant string (hashingData) to hash in the class and get the bytes for it in an 8-bit Unicode (UTF8) format:

var smallBytes = Encoding.UTF8.GetBytes(hashingData); 

We also want to get a larger block of bytes ...