BlogPlayerPrefs2.cs

    private const uint Count = 10;// 100 , 1000

    void Start()
    {
        TimeMeasurement(MaesurementProcess1, "Sample1",100);
        TimeMeasurement(MaesurementProcess2, "Sample2",100);
    }

    private void MaesurementProcess1()
    {
        for(int i = 0; i < Count; i++)
        {
            PlayerPrefs.SetInt("Test", UnityEngine.Random.Range(0,100));
            PlayerPrefs.Save();
        }
    }

    private void MaesurementProcess2()
    {
        for(int i = 0; i < Count; i++)
        {
            PlayerPrefs.SetInt("Test", UnityEngine.Random.Range(0, 100));
        }

        PlayerPrefs.Save();
    }

    private void TimeMeasurement(Action action, string Tag)
    {
        _TimeMeasurement(action, Tag + " : ", 1);
    }

    private void TimeMeasurement(Action action, uint count)
    {
        _TimeMeasurement(action, "", count);
    }

    private void TimeMeasurement(Action action, string Tag, uint count)
    {
        _TimeMeasurement(action, Tag + " : ", count);
    }

    private void _TimeMeasurement(Action action, string Tag, uint count)
    {
        System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
        float num = 0;
        for (int i = 0; i < count; i++)
        {
            sw.Start();
            action();
            sw.Stop();
            float progress = (float)sw.Elapsed.TotalMilliseconds;
            //Debug.Log(i.ToString() + "Time : " +progress.ToString());
            num += progress;
            sw.Reset();
        }

        Debug.Log(" num : " + num.ToString());
        Debug.Log("Average : " + (num / count).ToString());
    }