VS2005下PerformanceCounter的使用
如题，最近在研究这个，遇到几个问题，希望大家能帮帮我！using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
namespace Sample
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private int[] count = new int[13];
private int flag = 1;
private void RefData() //每一秒更新一次
{
PerformanceCounter pc;
pc = new PerformanceCounter("Process", "Handle Count", "_Total"); //句柄
count[0] = Convert.ToInt32(pc.NextValue());
pc = new PerformanceCounter("Process", "Thread Count", "_Total"); //线程
count[1] = Convert.ToInt32(pc.NextValue());
Process[] p = Process.GetProcesses(); //进程
count[2] = p.Length;
pc = new PerformanceCounter("Memory", "Available KBytes"); //可用物理内存
count[4] = Convert.ToInt32(pc.NextValue());
pc = new PerformanceCounter("Memory", "Cache Bytes"); //获取系统缓存，这里不对，谁知道这里应该怎么写？
count[5] = Convert.ToInt32(pc.NextValue() / 1024);
pc = new PerformanceCounter("Memory", "Committed Bytes"); //使用中的物理内存
count[6] = Convert.ToInt32(pc.NextValue() / 1024);
pc = new PerformanceCounter("Memory", "Pool Paged Bytes"); //核心内存分页
count[10] = Convert.ToInt32(pc.NextValue() / 1024);
pc = new PerformanceCounter("Memory", "Pool Nonpaged Bytes"); //核心内存未分页
count[11] = Convert.ToInt32(pc.NextValue() / 1024);
count[9] = count[10] + count[11]; //核心内存总数，为分页和未分页核心内存的和
if (flag == 1)
{
count[3] = count[4] + count[6]; //一次性统计物理内存总数,这里是使用的物理内存和没有使用中的物理内存之和，有点偏差，请问如何改？就是如何获取物理内存总量！
pc = new PerformanceCounter("Memory", "Commit Limit"); //一次性统计最大物理内存使用量
count[7] = Convert.ToInt32(pc.NextValue() / 1024);
count[8] = count[6];
flag = 0;
}
else
{
pc = new PerformanceCounter("Memory", "Committed Bytes"); //获取内存使用最大值，与前次比较
int i = Convert.ToInt32(pc.NextValue() / 1024);
if (i > count[8])
{
count[8] = i;
}
}
pc = new PerformanceCounter("Process", "Page File Bytes", "_Total"); //页面文件使用量
count[12] = Convert.ToInt32(pc.NextValue() / 1024);
}
private void Form1_Load(object sender, EventArgs e)
{
label4.Text = "";
label5.Text = "";
label6.Text = "";
label10.Text = "";
label11.Text = "";
label12.Text = "";
label16.Text = "";
label17.Text = "";
label18.Text = "";
label22.Text = "";
label23.Text = "";
label24.Text = "";
label25.Text = "";
label30.Text = "";
progressBar1.Value = 0;
timer1.Interval = 1000;
timer1.Enabled = true;
}
private void timer1_Tick(object sender, EventArgs e)
{
RefData();
label4.Text = count[0].ToString();
label5.Text = count[1].ToString();
label6.Text = count[2].ToString();
label10.Text = count[3].ToString();
label11.Text = count[4].ToString();
label12.Text = count[5].ToString();
label16.Text = count[6].ToString();
label17.Text = count[7].ToString();
label18.Text = count[8].ToString();
label22.Text = count[9].ToString();
label23.Text = count[10].ToString();
label24.Text = count[11].ToString();
label25.Text = (count[12] / 1024).ToString() + "MB";
progressBar1.Value = Convert.ToInt32(count[12] / 1024.0 / 2048.0 * 100);
label30.Text = label25.Text + "/2048MB";
}
}
}
/*CPU使用率的问题:
PerformanceCounter("Process","% Processor Time","_Total");
PerformanceCounter("Processor","% Processor Time","_Total");
上面两句来得到的CPU使用率时时为0，为何?(XP SP3系统，难道是不支持？)请问应该怎么写？还是有其他间接的方法？
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补充：.NET技术 , C#
