static void Main(string[] args)
{
int seed = (int)DateTime.Now.Ticks & 0x0000FFFF;
// Antras etapas
int n = 12;
string filename;
filename = @"mydataarray.dat";
MyFileArray myfilearray = new MyFileArray(filename, n, seed);
using (myfilearray.fs = new FileStream(filename, FileMode.Open, FileAccess.ReadWrite))
{
Console.WriteLine("\n FILE ARRAY \n");
myfilearray.Print(n);
QuickSort(myfilearray, 0, n - 1);
myfilearray.Print(n);
}
filename = @"mydatalist.dat";
MyFileList myfilelist = new MyFileList(filename, n, seed);
using (myfilelist.fs = new FileStream(filename, FileMode.Open, FileAccess.ReadWrite))
{
Console.WriteLine("\n FILE LIST \n");
myfilelist.Print(n);
QuickSort(myfilelist, 0, n - 1);
myfilelist.Print(n);
}
SpeedTest();
}
private static void SpeedTest()
{
Stopwatch stopWatch = new Stopwatch();
string filename1 = @"mydataarray.dat";
string filename2 = @"mydatalist.dat";
MyFileArray myArray;
MyFileList myList;
int seed = (int)DateTime.Now.Ticks & 0x0000FFFF;
int[] numbers = { 100, 200, 400, 800, 1600, 3200, 6400 };
Console.WriteLine("EXTERNAL MEMORY ARRAY QUICK SORT");
Console.WriteLine("|---------------------------|");
Console.WriteLine("| N | Run time |");
Console.WriteLine("|---------------------------|");
foreach (int number in numbers)
{
//speed test for array
myArray = new MyFileArray(filename1, number, seed);
using (myArray.fs = new FileStream(filename1, FileMode.Open, FileAccess.ReadWrite))
{
stopWatch.Start();
QuickSort(myArray, 0, number - 1);
stopWatch.Stop();
}
Console.WriteLine("| {0,-9} | {1,2}:{2,2}:{3,3} |", number,
stopWatch.Elapsed.Minutes, stopWatch.Elapsed.Seconds, stopWatch.Elapsed.Milliseconds);
//reseting stop watch
stopWatch.Reset();
}
Console.WriteLine("|---------------------------|\n");
Console.WriteLine("EXTERNAL MEMORY LIST QUICK SORT");
Console.WriteLine("|---------------------------|");
Console.WriteLine("| N | Run time |");
Console.WriteLine("|---------------------------|");
foreach (int number in numbers)
{
//speed test for array
myList = null;
myList = new MyFileList(filename2, number, seed);
using (myList.fs = new FileStream(filename2, FileMode.Open, FileAccess.ReadWrite))
{
stopWatch.Start();
QuickSort(myList, 0, number - 1);
stopWatch.Stop();
}
Console.WriteLine("| {0,-9} | {1,2}:{2,2}:{3,3} |", number,
stopWatch.Elapsed.Minutes, stopWatch.Elapsed.Seconds, stopWatch.Elapsed.Milliseconds);
//reseting stop watch
stopWatch.Reset();
}
Console.WriteLine("|---------------------------|");
}