MemInfo.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace CpuTime
{
    public class WinApiHelpers
    {
        [DllImport("psapi.dll", SetLastError = true)]
        public static extern bool GetProcessMemoryInfo(IntPtr hProcess, out PROCESS_MEMORY_COUNTERS counters, uint size);

        [StructLayout(LayoutKind.Sequential, Size = 72)]
        public struct PROCESS_MEMORY_COUNTERS_64
        {
            public uint cb;
            public uint PageFaultCount;
            public UInt64 PeakWorkingSetSize;
            public UInt64 WorkingSetSize;
            public UInt64 QuotaPeakPagedPoolUsage;
            public UInt64 QuotaPagedPoolUsage;
            public UInt64 QuotaPeakNonPagedPoolUsage;
            public UInt64 QuotaNonPagedPoolUsage;
            public UInt64 PagefileUsage;
            public UInt64 PeakPagefileUsage;
        }

        [StructLayout(LayoutKind.Sequential, Size = 40)]
        public struct 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;
        }
    }
}