public void Performance_test()
{
var data = new byte[1000];
for (var i = 0; i < 1000; i++)
{
data[i] = (byte)(i % 255);
}
var data1 = new byte[2000];
for (var i = 0; i < 2000; i++)
{
data1[i] = (byte)(i % 255);
}
using (var storage = new ReliableStorage(new NullProcessor()))
{
storage.LoadPersistentData();
const int count = 10000;
var sw = new Stopwatch();
sw.Start();
for (var i = 0; i < count; i++)
{
storage.StoreBlock(data, i.ToString(), 155);
}
sw.Stop();
Console.WriteLine(
$"Writing {count} blocks to persistent storage took {sw.ElapsedMilliseconds} milliseconds");
}
{
var w = new Stopwatch();
var processor = new NullProcessor();
w.Start();
using (var storage = new ReliableStorage(processor))
{
storage.LoadPersistentData();
}
w.Stop();
Console.WriteLine(
$"Loading {processor.ProcessedBlocks.Count} blocks from persistent storage took {w.ElapsedMilliseconds} milliseconds");
}
using (var storage = new ReliableStorage(new NullProcessor()))
{
storage.LoadPersistentData();
const int count = 10000;
var sw = new Stopwatch();
sw.Start();
for (var i = 0; i < count; i++)
{
storage.StoreBlock(data, i.ToString(), 155);
}
sw.Stop();
Console.WriteLine(
$"In-place updating {count} blocks to persistent storage took {sw.ElapsedMilliseconds} milliseconds");
}
using (var storage = new ReliableStorage(new NullProcessor()))
{
storage.LoadPersistentData();
const int count = 10000;
var sw = new Stopwatch();
sw.Start();
for (var i = 0; i < count; i++)
{
storage.StoreBlock(data1, i.ToString(), 155);
}
sw.Stop();
Console.WriteLine(
$"out of place updating {count} blocks to persistent storage took {sw.ElapsedMilliseconds} milliseconds");
}
{
var w = new Stopwatch();
var processor = new NullProcessor();
w.Start();
using (var storage = new ReliableStorage(processor))
{
storage.LoadPersistentData();
w.Stop();
Assert.AreEqual(10000, storage.InactiveBlockCount);
}
Console.WriteLine(
$"Loading {processor.ProcessedBlocks.Count} blocks from persistent storage with dirty blocks took {w.ElapsedMilliseconds} milliseconds");
}
var info = new FileInfo(Path.Combine(Constants.DataPath, ReliableStorage.StorageFileName));
Console.WriteLine($"Before cleaning the file size was {info.Length}");
// clean the storage (remove all dirty blocks)
{
var w = new Stopwatch();
var processor = new NullProcessor();
using (var storage = new ReliableStorage(processor))
{
storage.LoadPersistentData();
w.Start();
storage.CleanStorage();
w.Stop();
Assert.AreEqual(0, storage.InactiveBlockCount);
Console.WriteLine(
$"Storage cleaning took {w.ElapsedMilliseconds} milliseconds");
}
}
info = new FileInfo(Path.Combine(Constants.DataPath, ReliableStorage.StorageFileName));
Console.WriteLine($"After cleaning the file size was {info.Length}");
{
var w = new Stopwatch();
var processor = new NullProcessor();
w.Start();
using (var storage = new ReliableStorage(processor))
{
storage.LoadPersistentData();
w.Stop();
Assert.AreEqual(0, storage.InactiveBlockCount);
}
Console.WriteLine(
$"Loading {processor.ProcessedBlocks.Count} blocks from persistent storage after cleaning took {w.ElapsedMilliseconds} milliseconds");
}
}
