What is Volatile Keyword in C# ?

1. It is a user mode primitive (utilizes CPU Resource) used fr atomic updates.
2. It tells the compiler not to optimize the code.
3. It tells the Threads to access the value directly from main memory and do not trust the value cached elsewhere.

Methods In Volatile :  

Volatile.Read and Volatile.Write .They take overloaded arguments of int,bool,short,enum.

public int m_flag=0;
Volatile.Write(ref m_flag, 1);