C#实现进程内存信息获取

using System.Collections.Generic;
using System.Runtime.InteropServices;
using System;
using System.Diagnostics;
staticclassNat
{
    [StructLayout(LayoutKind.Sequential]
    struct IO_COUNTERS
    {
        public ulong ReadOperationCount;
        public ulong WriteOperationCount;
        public ulong OtherOperationCount;
        public ulong ReadTransferCount;
        public ulong WriteTransferCount;
        public ulong OtherTransferCount;
    }
    [DllImport("kernel32.dll")]
    unsafe static extern bool GetProcessIoCounters(IntPtrProcessHandle,out IO_COUNTERS IoCounters);

    [StructLayout(LayoutKind.Sequential,Size=40)]
    privatestruct PROCESS_MEMORY_COUNTERS
    {
        public uint cb;
        public uint PageFaultCount;
        public uint PeakWorkingSetSize;
        public uint WorkingSetSize;
        public uint QuotaPeakPagedPoolUsage;
        public uint QuotaPagedPoolUsage;
        public uint QuotaPeakNonPagedPoolUsage;
        public uint QuotaNonPagedPoolUsage;
        public uint PagefileUsage;
        public uint PeakPagefileUsage;
    }

    [DllImport("psapi.dll",SetLastError=true)]
    unsafe static extern bool GetProcessMemoryInfo(IntPtr* hProcess,out PROCESS_MEMORY_COUNTERS*Memcounters,int size);

    publicstaticclass IO
    {
        unsafepublicstaticDictionary<string,ulong>GetALLIO(Process procToRtrivIO)
        {
            IO_COUNTERS counters;
            Dictionary<string,ulong> retCountIoDict =newDictionary<string,ulong>();
            IntPtr ptr =System.Diagnostics.Process.GetCurrentProcess().Handle;

            GetProcessIoCounters(ptr,out counters);
            retCountIoDict.Add("ReadOperationCount", counters.ReadOperationCount);
            retCountIoDict.Add("WriteOperationCount", counters.WriteOperationCount);
            retCountIoDict.Add("OtherOperationCount", counters.OtherOperationCount);
            retCountIoDict.Add("ReadTransferCount", counters.ReadTransferCount);
            retCountIoDict.Add("WriteTransferCount", counters.WriteTransferCount);
            retCountIoDict.Add("OtherTransferCount", counters.OtherTransferCount);
            return retCountIoDict;
            //return  "This process has read " + ((counters.ReadTransferCount/1024)/1024).ToString("N0") +
            //    " Mb of data.";

        }
    }
    publicstaticclassMem
    {
        unsafe public staticDictionary<string,uint>GetAllMem(Process procToRtrivMem)
        {

            PROCESS_MEMORY_COUNTERS*MemCounters;
            Dictionary<string,uint> retCountMemDict =newDictionary<string,uint>();
            IntPtr ptr =System.Diagnostics.Process.GetCurrentProcess().Handle;

            GetProcessMemoryInfo(&ptr,outMemCounters,Marshal.SizeOf(typeof(PROCESS_MEMORY_COUNTERS)));//MemCounters.cb);
            retCountMemDict.Add("cb",MemCounters->cb);
            retCountMemDict.Add("PageFaultCount",MemCounters->PageFaultCount);
            retCountMemDict.Add("PeakWorkingSetSize",MemCounters->PeakWorkingSetSize);
            retCountMemDict.Add("WorkingSetSize",MemCounters->WorkingSetSize);
            retCountMemDict.Add("QuotaPeakPagedPoolUsage",MemCounters->QuotaPeakPagedPoolUsage);
            retCountMemDict.Add("QuotaPagedPoolUsage",MemCounters->QuotaPagedPoolUsage);

            retCountMemDict.Add("QuotaPeakNonPagedPoolUsage",MemCounters->QuotaPeakNonPagedPoolUsage);
            retCountMemDict.Add("QuotaNonPagedPoolUsage",MemCounters->QuotaNonPagedPoolUsage);
            retCountMemDict.Add("PagefileUsage",MemCounters->PagefileUsage);
            retCountMemDict.Add("PeakPagefileUsage",MemCounters->PeakPagefileUsage);

            return retCountMemDict;
            //return  "This process has read " + ((counters.ReadTransferCount/1024)/1024).ToString("N0") +
            //    " Mb of data.";

        }
    }
}

 参考：using unsafe code in C# asp.net   http://stackoverflow.com/questions/17207310/using-unsafe-code-in-c-sharp-asp-net

collectiong memory usage information for a processhttp://msdn.microsoft.com/en-us/library/windows/desktop/ms682050(v=vs.85).aspx

在C#中调用psapi.dll内置的GetProcessMemoryInfo函数http://social.microsoft.com/Forums/it-IT/650197e0-a21a-4f5e-a974-23f074f52a55/cpsapidllgetprocessmemoryinfo?forum=visualcshartzhchs

ASP.NET(C#)获取当前计算机CPU内存使用率等相关信息http://luzinwbing.blog.163.com/blog/static/113805840201031093415658/

 不安全代码只会在使用/unsafe编译情况下使用  http://lixiaorong223.blog.163.com/blog/static/44011629200993181241924/

wmi获得进程的虚拟内存与任务管理器中显示的不一致  http://bbs.csdn.net/topics/260033107