When is ReaderWriterLockSlim better than a simple lock?

Question

I\'m doing a very silly benchmark on the ReaderWriterLock with this code, where reading happens 4x more often than writting:

class Program
{
    static void          


        

Answer 1

You will get better performance with ReaderWriterLockSlim than a simple lock if you lock a part of code which needs longer time to execute. In this case readers can work in parallel. Acquiring a ReaderWriterLockSlim takes more time than entering a simple Monitor. Check my ReaderWriterLockTiny implementation for a readers-writer lock which is even faster than simple lock statement and offers a readers-writer functionality: http://i255.wordpress.com/2013/10/05/fast-readerwriterlock-for-net/