Performance cost of C # value type parameter passing

Performance issues

Let ' s dig a little deeper. When data is passed to methods as value type parameters, a copy of each parameter are created on the stack. Clearly, if the parameter in question are a large data type, such as a user-defined structure with many elements, or the Me Thod is executed the many times, this could have a impact on performance.

In these situations it is preferable to pass a reference to the type, using the ref keyword. This is the C # equivalent of the C + + technique of passing a pointer to a variable into a function. As with the C + + version, the method has the ability-to-change the contents of the variable, and which may isn't always safe. The programmer needs to decide on the trade-off between security and performance.

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Performance cost of C # value type parameter passing