Version: 2017.1
public static void BeginSample (string name);
public static void BeginSample (string name, Object targetObject);



This will show up in the Profiler hierarchy. Profiler.BeginSample is conditionally compiled away using ConditionalAttribute. Thus it will have zero overhead, when it is deployed in non-Development Build.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void Example() { Profiling.Profiler.BeginSample("MyPieceOfCode"); Profiling.Profiler.EndSample(); } }