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How to install MinWorkingSet and MaxWorkingSet in a 64-bit .NET process?

How to install MinWorkingSet and MaxWorking for a 64-bit .NET process?

ps I can set the set of MinWorkingSet and MaxWorking for a 32-bit process as follows:

[DllImport("KERNEL32.DLL", EntryPoint = "SetProcessWorkingSetSize", SetLastError = true, CallingConvention = CallingConvention.StdCall)]
internal static extern bool SetProcessWorkingSetSize(IntPtr pProcess, int dwMinimumWorkingSetSize, int dwMaximumWorkingSetSize);

[DllImport("KERNEL32.DLL", EntryPoint = "GetCurrentProcess", SetLastError = true, CallingConvention = CallingConvention.StdCall)]
internal static extern IntPtr MyGetCurrentProcess();

// In main():
SetProcessWorkingSetSize(Process.GetCurrentProcess().Handle, int.MaxValue, int.MaxValue);
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All you have to do is change your ad like this:

[DllImport("KERNEL32.DLL", EntryPoint = "SetProcessWorkingSetSize", 
    SetLastError = true, CallingConvention = CallingConvention.StdCall)]
internal static extern bool SetProcessWorkingSetSize(IntPtr pProcess, 
    long dwMinimumWorkingSetSize, long dwMaximumWorkingSetSize);

The reason is that the function definitionSetProcessWorkingSetSize :

BOOL WINAPI SetProcessWorkingSetSize(
  _In_  HANDLE hProcess,
  _In_  SIZE_T dwMinimumWorkingSetSize,
  _In_  SIZE_T dwMaximumWorkingSetSize
);

Note that it does not use DWORD(as a 32-bit integer), but SIZE_Twhich is defined as :

The maximum number of bytes that the pointer points to. Use for count, which should cover the entire range of the pointer. This type is declared in BaseTsd.h as follows:

typedef ULONG_PTR SIZE_T;

, 64- , , long 64- . , MSDN " 64- Visual ++:

size_t, time_t ptrdiff_t - 64- 64- Windows.

, ( PITA). , EntryPoint DllImportAttribute ( ), :

[DllImport("KERNEL32.DLL", EntryPoint = "SetProcessWorkingSetSize", 
    SetLastError = true, CallingConvention = CallingConvention.StdCall)]
internal static extern bool SetProcessWorkingSetSize32(IntPtr pProcess, 
    int dwMinimumWorkingSetSize, int dwMaximumWorkingSetSize);

[DllImport("KERNEL32.DLL", EntryPoint = "SetProcessWorkingSetSize", 
    SetLastError = true, CallingConvention = CallingConvention.StdCall)]
internal static extern bool SetProcessWorkingSetSize64(IntPtr pProcess, 
    long dwMinimumWorkingSetSize, long dwMaximumWorkingSetSize);

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