static void SimpleTreeInt(string path)
{
int pointsCount = 2, pointsDistance = 1000000;
int[][] results = { new int[pointsCount], new int[pointsCount], new int[pointsCount] };
for (int i = 1, j = 0; j < pointsCount; i += pointsDistance, j++)
{
if (File.Exists(path + "simple int.pac"))
{
File.Delete(path + "simple int.pac");
}
if (File.Exists(path + "simple int tree.pxc"))
{
File.Delete(path + "simple int tree.pxc");
}
if (File.Exists(path + "simple int tree add.pxc"))
{
File.Delete(path + "simple int tree add.pxc");
}
Thread.Sleep(1);
var objects = Enumerable.Range(0, i).Cast <object>().ToArray();
Stopwatch timer = new Stopwatch();
var ints = objects.Cast <int>();
timer.Start();
var simpleIntCell = new BTreeInt(new PType(PTypeEnumeration.integer),
path + "simple int tree.pxc", false);
simpleIntCell.Fill(ints, false);
//objects.ToBTree(new PType(PTypeEnumeration.integer), path + "simple int tree.pxc",
//(o, entry) => (int) o - (int) entry.Get(), o => o, false);
timer.Stop();
results[0][j] = (int)timer.Elapsed.Ticks;
Console.WriteLine("simple int tree " + i + "elements created for (ms)" + timer.Elapsed.TotalMilliseconds);
timer.Restart();
PaCell paCell = new PaCell(new PTypeSequence(new PType(PTypeEnumeration.integer)),
path + "simple int.pac", false);
paCell.Fill(objects);
timer.Stop();
results[1][j] = (int)timer.Elapsed.Ticks;
Console.WriteLine("simple int pa " + i + "elements created for (ms)" + timer.Elapsed.TotalMilliseconds);
// линейное возрастание времени
// AddTreeAddChart(path, timer, objects, results, j);
Console.WriteLine();
TestGetByKey(simpleIntCell, i, paCell);
Console.WriteLine();
paCell.Close();
simpleIntCell.Close();
}
}
private static void TestGetByKey(BTreeInt tree, int max, PaCell paCell)
{
Stopwatch timer = new Stopwatch();
for (int i = 0; i < 3; i++)
{
if (i == 0)
{
Console.WriteLine("first search");
}
int tested = new Random(DateTime.Now.Millisecond).Next(max - 1);
timer.Restart();
var res = tree.BinarySearch(tested);
timer.Stop();
Console.WriteLine("search in " + max + " elements TREE find " + tested + " for (ticks)" + timer.Elapsed.Ticks);
timer.Restart();
var res1 = paCell.Root.BinarySearchFirst(entry => (int)entry.Get() - tested);
timer.Stop();
Console.WriteLine("binary search in " + max + " elements PA CELL find " + tested + " for (ticks)" + timer.Elapsed.Ticks);
Console.WriteLine();
}
}
