如何获得一页面执行了多长时间

Question

如何获得一页面执行了多长时间

Answer 1

/*************************************************************/
using System;
using System.Runtime.InteropServices;
using System.ComponentModel;
using System.Threading;namespace Win32
{
    internal class HiPerfTimer
    {
        [DllImport("Kernel32.dll")]
        private static extern bool QueryPerformanceCounter(
            out long lpPerformanceCount);        [DllImport("Kernel32.dll")]
        private static extern bool QueryPerformanceFrequency(
            out long lpFrequency);        private long startTime, stopTime;
        private long freq;        // Constructor
        public HiPerfTimer()
        {
            startTime = 0;
            stopTime  = 0;            if (QueryPerformanceFrequency(out freq) == false)
            {
                // high-performance counter not supported
                throw new Win32Exception();
            }
        }        // Start the timer
        public void Start()
        {
            // lets do the waiting threads there work
            Thread.Sleep(0);            QueryPerformanceCounter(out startTime);
        }        // Stop the timer
        public void Stop()
        {
            QueryPerformanceCounter(out stopTime);
        }        // Returns the duration of the timer (in seconds)
        public double Duration
        {
            get
            {
                return (double)(stopTime - startTime) / (double) freq;
            }
        }
    }
}这个类可以获得具体执行时间，在load中调用即可