Statically logging method call latencies

static-latency-logging.cs

interface IDoWork {
    void DoThis();
    string WhatsThat(int that);
}

class DoWork : IDoWork {
    public void DoThis() {
        Log.Action("DoWork.DoThis", () => DoThisImpl() );
    }

    public string WhatsThat(int that) {
        return Log.Func("DidWork.ChangedTheNameForgotTheString", () => "It is " + that);
    }
}

// assuming Log.Method is a way to run the given Action/Func, 
// meter the latency keyed by method, and do something with the data