Performance impact due to StackTrace constructor and getting method name

问题

I have this piece of code in our logging library

var stackTrace = new StackTrace();
string operationName = stackTrace.GetFrame(1).GetMethod().Name;

And as per my performance analysis using the PerfView Tool it shows up as

Does anyone know of the performance implications by the code that i have added? If yes is there any other way that i can get method name without having greater performance impact?

I am currently running it as 1000 TPS on a 4 core machine. And i see that the it uses 15.1% of my CPU

回答1:

As of C# 5, it would definitely be better to get the compiler to bake this into the call site instead, using [CallerMemberName]

public void Log(string message, [CallerMemberName] caller = null)
{
}

Then:

public void DoSomething()
{
    logger.Log("A message");
}

... is converted by the C# compiler into

public void DoSomething()
{
    logger.Log("A message", "DoSomething");
}

来源：https://stackoverflow.com/questions/33528415/performance-impact-due-to-stacktrace-constructor-and-getting-method-name