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I am trying to read a few text files ( around 300 kb each ). Until now I’ve been using the Filestream to open the file and read it. ( TAB DELIMITED ). However, I heard about the memory mapped file in .net 4.0. Would it make my reads any faster ?
Is there any sample code that does the read of a simple file and compare performance ?
If the files are on disk and just need to be read into memory, then using a memory mapped file will not help at all, as you still need to read them from disk.
If all you are doing is reading the files, there is no point in memory mapping them.
Memory mapped files are for use when you are doing intensive work with the file (reading, writing, changing) and want to avoid the disk IO.