获取多核CPU使用率，设置CPU亲和性

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.Diagnostics;
using System.Threading;

namespace CpuUsagePercent
{
    public class CCpuUsagePercent
    {
        private int m_PhysicsProcessorNum;

        private double[] dbUsage;

        public CCpuUsagePercent（）
        {
            m_PhysicsProcessorNum = System.Environment.ProcessorCount;
            dbUsage = new double[m_PhysicsProcessorNum];
        }

        public int getPhysicsProcessorNum（）
        {
            return m_PhysicsProcessorNum;
        }

        private void getCpuUsage（）
        {
            PerformanceCounter[] counters = new PerformanceCounter[m_PhysicsProcessorNum];

            for （int i = 0; i < counters.Length; i++）
            {
                counters[i] = new PerformanceCounter（“Processor“ “% Processor Time“ i.ToString（））;
            }

            Thread.Sleep（100）;
    
             for （int i = 0; i < counters.Length; i++）
             {
                 dbUsage[i]= counters[i].NextValue（）;
                  
             }
        }

        public double getUsageByIndex（int index）
        {
            if（index==0）
                getCpuUsage（）;

            return dbUsage[index];
        }

    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件   68571136  2015-06-10 11:00  SystemInfoDemoSystemInfoDemo.sdf

     文件       3606  2015-04-28 11:49  SystemInfoDemoSystemInfoDemo.sln

    ..A..H.     45568  2015-06-10 11:00  SystemInfoDemoSystemInfoDemo.suo

     文件       1329  2015-04-24 14:22  SystemInfoDemoCpuUsageCCpuUsagePercent.cs

     文件       2330  2015-04-24 14:16  SystemInfoDemoCpuUsageCCpuUsagePercent.csproj

     文件       4608  2015-04-24 14:22  SystemInfoDemoCpuUsageinReleaseCCpuUsagePercent.dll

     文件      11776  2015-04-24 14:22  SystemInfoDemoCpuUsageinReleaseCCpuUsagePercent.pdb

     文件       5615  2015-04-27 09:27  SystemInfoDemoCpuUsageobjDebugDesignTimeResolveAssemblyReferencesInput.cache

     文件        390  2015-04-24 14:22  SystemInfoDemoCpuUsageobjReleaseCCpuUsagePercent.csproj.FileListAbsolute.txt

     文件       4608  2015-04-24 14:22  SystemInfoDemoCpuUsageobjReleaseCCpuUsagePercent.dll

     文件      11776  2015-04-24 14:22  SystemInfoDemoCpuUsageobjReleaseCCpuUsagePercent.pdb

     文件        358  2015-04-24 14:15  SystemInfoDemoCpuUsageobjReleaseCpuUsage.csproj.FileListAbsolute.txt

     文件       5619  2015-04-27 09:27  SystemInfoDemoCpuUsageobjReleaseDesignTimeResolveAssemblyReferencesInput.cache

     文件       1368  2015-04-24 12:35  SystemInfoDemoCpuUsagePropertiesAssemblyInfo.cs

     文件      40448  2015-04-28 12:39  SystemInfoDemoDebugTestDemo.exe

     文件     393480  2015-04-28 12:39  SystemInfoDemoDebugTestDemo.ilk

     文件     633856  2015-04-28 12:39  SystemInfoDemoDebugTestDemo.pdb

     文件    4342088  2010-03-18 09:15  SystemInfoDemopublicmfc100.dll

     文件     770384  2010-03-18 09:15  SystemInfoDemopublicmsvcr100.dll

     文件    1731920  2011-11-17 14:41  SystemInfoDemopublic
tdll.dll

     文件     292352  2012-03-26 14:09  SystemInfoDemopublicpdh.dll

     文件     117760  2015-05-05 09:23  SystemInfoDemopublicSystemInfoDemo.exe

     文件    4598784  2015-05-05 09:23  SystemInfoDemopublicSystemInfoDemo.pdb

     文件    4566016  2015-04-23 11:33  SystemInfoDemoReleaseSystemInfoDemo.pdb

     文件      11264  2015-05-05 09:23  SystemInfoDemoReleaseTestDemo.exe

     文件     568320  2015-05-05 09:23  SystemInfoDemoReleaseTestDemo.pdb

     文件       4608  2015-04-24 14:22  SystemInfoDemoSystemInfoDemoCCpuUsagePercent.dll

     文件       3724  2015-04-23 21:02  SystemInfoDemoSystemInfoDemomyListCtrl.cpp

     文件        515  2015-04-23 20:50  SystemInfoDemoSystemInfoDemomyListCtrl.h

     文件       3146  2015-04-21 22:46  SystemInfoDemoSystemInfoDemoReadMe.txt

............此处省略153个文件信息