#include<tchar.h>
#include<iostream>
#include<windows.h>
#include<stdio.h>
#include<limits.h>
#include<time.h>
#include<fstream>
using namespace std;
int main(int argc, char* argv[])
{
fstream f;
f.open("output.txt", ios::out);
clock_t startTime;
long int freeBytes;
int freePage;
int freeVirtual;
MEMORYSTATUS MemoryInfo;
GlobalMemoryStatus(&MemoryInfo);
freeBytes = MemoryInfo.dwAvailPhys;
freePage = MemoryInfo.dwAvailPageFile;
freeVirtual = MemoryInfo.dwAvailVirtual;
cout << "Available Physical Memory: " << MemoryInfo.dwAvailPhys << endl;
cout<< "Available Page File: " << MemoryInfo.dwAvailPageFile << endl;
cout<< "Available Virtual Memory" << MemoryInfo.dwAvailVirtual << endl;
f << "Available Physical Memory: " << MemoryInfo.dwAvailPhys << endl;
f << "Available Page File: " << MemoryInfo.dwAvailPageFile << endl;
f << "Available Virtual Memory" << MemoryInfo.dwAvailVirtual << endl;
double Cache_size[15] = { 0.5,0.6,0.7,0.8 ,0.9, 0.95,0.99, 1.0, 1.01,1.1, 1.5, 2, 5, 10, 50 };
long int num_of_Bytes;

int *num_array; //
for (int i = 0; i<15; i++)
{
cout<< "=========================================" << endl;
cout<< "Cache Size: " << Cache_size[i] << "*M"<< endl;
f << "=========================================" << endl;
f << "Cache Size: " << Cache_size[i] << "*M" << endl;
startTime = clock();
num_of_Bytes = abs((int)(Cache_size[i] * (freeBytes)));
int size = num_of_Bytes / sizeof(int);
num_array = new int[size];
GlobalMemoryStatus(&MemoryInfo);
cout<< "Available Physical Memory: " << MemoryInfo.dwAvailPhys << endl;
cout<< "Available Page File: " << MemoryInfo.dwAvailPageFile << endl;
cout<< "Available Virtual Memory" << MemoryInfo.dwAvailVirtual << endl;
f << "Available Physical Memory: " << MemoryInfo.dwAvailPhys << endl;
f << "Available Page File: " << MemoryInfo.dwAvailPageFile << endl;
f << "Available Virtual Memory" << MemoryInfo.dwAvailVirtual << endl;
for (int i = 0; i < size; i++)
{
num_array[i] = i;
}
for (int i = 0; i < size; i++)
{
num_array[i] += i;
}
delete[] num_array;
cout<< "Time elapsed: " << ((double)(clock() - startTime) / (double)CLOCKS_PER_SEC) << " seconds " << endl;
f << "Time elapsed: " << ((double)(clock() - startTime) / (double)CLOCKS_PER_SEC) << " seconds " << endl;
}
system("pause");
return 0;
}