public static void Create64BillionLinks()
{
string tempFilename = Path.GetTempFileName();
using (var links = new Platform.Links.DataBase.CoreUnsafe.Pairs.Links(tempFilename, DefaultLinksSize))
{
ulong linksBeforeTest = links.Total;
long linksToCreate = 64*1024*1024/Platform.Links.DataBase.CoreUnsafe.Pairs.Links.LinkSizeInBytes;
Console.WriteLine("Creating {0} links.", linksToCreate);
TimeSpan elapsedTime = Measure(() =>
{
for (long i = 0; i < linksToCreate; i++)
{
links.Create(0, 0);
}
});
ulong linksCreated = links.Total - linksBeforeTest;
double linksPerSecond = linksCreated/elapsedTime.TotalSeconds;
Console.WriteLine("Current links count: {0}.", links.Total);
Console.WriteLine("{0} links created in {1} ({2} links per second)", linksCreated, elapsedTime,
(long) linksPerSecond);
}
File.Delete(tempFilename);
}
public void GetSourceTest()
{
string tempFilename = Path.GetTempFileName();
using (var links = new Platform.Links.DataBase.CoreUnsafe.Pairs.Links(tempFilename, DefaultLinksSize))
{
Console.WriteLine("Testing GetSource function with {0} Iterations.", Iterations);
ulong counter = 0;
//var firstLink = links.First();
// Создаём одну связь, из которой будет производить считывание
ulong firstLink = links.Create(0, 0);
Stopwatch sw = Stopwatch.StartNew();
// Тестируем саму функцию
for (ulong i = 0; i < Iterations; i++)
counter += links.GetSource(firstLink);
TimeSpan elapsedTime = sw.Elapsed;
double iterationsPerSecond = Iterations/elapsedTime.TotalSeconds;
// Удаляем связь, из которой производилось считывание
links.Delete(ref firstLink);
Console.WriteLine(
"{0} Iterations of GetSource function done in {1} ({2} Iterations per second), counter result: {3}",
Iterations, elapsedTime, (long) iterationsPerSecond, counter);
}
File.Delete(tempFilename);
}
public void TestGetTargetInParallel()
{
string tempFilename = Path.GetTempFileName();
using (var links = new Platform.Links.DataBase.CoreUnsafe.Pairs.Links(tempFilename, DefaultLinksSize))
{
Console.WriteLine("Testing GetTarget function with {0} Iterations in parallel.", Iterations);
long counter = 0;
//var firstLink = links.First();
ulong firstLink = links.Create(0, 0);
Stopwatch sw = Stopwatch.StartNew();
Parallel.For(0, Iterations, x =>
{
Interlocked.Add(ref counter, (long) links.GetTarget(firstLink));
//Interlocked.Increment(ref counter);
});
TimeSpan elapsedTime = sw.Elapsed;
double iterationsPerSecond = Iterations/elapsedTime.TotalSeconds;
links.Delete(ref firstLink);
Console.WriteLine(
"{0} Iterations of GetTarget function done in {1} ({2} Iterations per second), counter result: {3}",
Iterations, elapsedTime, (long) iterationsPerSecond, counter);
}
File.Delete(tempFilename);
}
public static void Create64BillionLinksInParallel()
{
string tempFilename = Path.GetTempFileName();
using (var links = new Platform.Links.DataBase.CoreUnsafe.Pairs.Links(tempFilename, DefaultLinksSize))
{
ulong linksBeforeTest = links.Total;
Stopwatch sw = Stopwatch.StartNew();
long linksToCreate = 64*1024*1024/Platform.Links.DataBase.CoreUnsafe.Pairs.Links.LinkSizeInBytes;
Console.WriteLine("Creating {0} links in parallel.", linksToCreate);
Parallel.For(0, linksToCreate, x => links.Create(0, 0));
TimeSpan elapsedTime = sw.Elapsed;
ulong linksCreated = links.Total - linksBeforeTest;
double linksPerSecond = linksCreated/elapsedTime.TotalSeconds;
Console.WriteLine("{0} links created in {1} ({2} links per second)", linksCreated, elapsedTime,
(long) linksPerSecond);
}
File.Delete(tempFilename);
}
