Version: 2022.3
语言: 中文

Recorder.elapsedNanoseconds

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public long elapsedNanoseconds ;

描述

前一帧的 Begin/End 对的累积时间（以纳秒为单位）。（只读）

持久操作（例如，在预加载线程上执行的操作）可能不会在单个帧内结束。在这种情况下，计算 **elapsedNanoseconds** 直到帧结束，以便您可以随时查看这些操作的活动。 

using UnityEngine;
using UnityEngine.Profiling;

public class ExampleClass : MonoBehaviour
{
    Recorder behaviourUpdateRecorder;
    void Start()
    {
        behaviourUpdateRecorder = Recorder.Get("BehaviourUpdate");
        behaviourUpdateRecorder.enabled = true;
    }

    void Update()
    {
        if (behaviourUpdateRecorder.isValid)
            Debug.Log("BehaviourUpdate time: " + behaviourUpdateRecorder.elapsedNanoseconds);
    }
}

Use elapsedNanoseconds to retrieve timings of a code tagged with ProfilerMarker.Auto. 

using UnityEngine;
using UnityEngine.Profiling;

public class Example
{
    public static void TimeSynchronousMethodWithMarkers()
    {
        var recorder = Recorder.Get("MyMarker");
        recorder.enabled = true; // Start measurements

        // Call method which uses MyMarker
        // MyMethod();

        recorder.enabled = false; // Stops measurements and makes data available immediately
        Debug.Log("MyMarker total time, ns: " + recorder.elapsedNanoseconds);
    }
}

In synchronous measurements that don't involve a frame change, elapsedNanoseconds only becomes a non-zero value after the Recorder is disabled.

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