由于 StackTrace 构造函数和获取方法名称而导致的性能影响

问题描述

我在我们的日志库中有这段代码

I have this piece of code in our logging library

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

根据我使用 PerfView 工具的性能分析，它显示为

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

有谁知道我添加的代码对性能的影响?如果是，有没有其他方法可以在不影响性能的情况下获取方法名称?

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?

我目前在 4 核机器上以 1000 TPS 的速度运行它.我看到它使用了我的 CPU 的 15.1%

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

推荐答案

从 C# 5 开始，肯定让编译器将其烘焙到调用站点中会更好，而是使用 [CallerMemberName]

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)
{
}

那么:

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

... 被 C# 编译器转换成

... is converted by the C# compiler into

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

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