ReaderWriterLock vs lock{}

Question

Please explain what are the main differences and when should I use what.
The focus on web multi-threaded applications.

Answer 1

It is true that ReaderWriterLockSlim is FASTER than ReaderWriterLock. But the memory consumption by ReaderWriterLockSlim is outright outrageous. Try attaching a memory profiler and see for yourself. I would pick ReaderWriterLock anyday over ReaderWriterLockSlim.