What is the fastest way to compare two byte arrays?

Question

I am trying to compare two long bytearrays in VB.NET and have run into a snag. Comparing two 50 megabyte files takes almost two minutes, so I\'m clearly doing something wron

Answer 1

If you don't need to know the byte, use 64-bit ints that gives you 8 at once. Actually, you can figure out the wrong byte, once you've isolated it to a set of 8.

Use BinaryReader:

saveTime  = binReader.ReadInt32()

Or for arrays of ints:

Dim count As Integer = binReader.Read(testArray, 0, 3)