private static void FillSeqMultipleTransaction(Stopwatch sw, FlushMode flushMode)
{
var memoryMapPager = new MemoryMapPager(Path, flushMode);
using (var env = new StorageEnvironment(memoryMapPager))
{
var value = new byte[100];
new Random().NextBytes(value);
var ms = new MemoryStream(value);
using (var tx = env.NewTransaction(TransactionFlags.ReadWrite))
{
memoryMapPager.AllocateMorePages(tx, 1024 * 1024 * 768);
tx.Commit();
}
sw.Start();
int counter = 0;
for (int x = 0; x < Transactions; x++)
{
using (var tx = env.NewTransaction(TransactionFlags.ReadWrite))
{
for (long i = 0; i < ItemsPerTransaction; i++)
{
ms.Position = 0;
env.Root.Add(tx, (counter++).ToString("0000000000000000"), ms);
}
tx.Commit();
}
}
sw.Stop();
}
}
private static void ReadAndWriteOneTransaction(Stopwatch sw, int concurrency)
{
var memoryMapPager = new MemoryMapPager(Path, FlushMode.None);
using (var env = new StorageEnvironment(memoryMapPager))
{
var value = new byte[100];
new Random().NextBytes(value);
using (var tx = env.NewTransaction(TransactionFlags.ReadWrite))
{
memoryMapPager.AllocateMorePages(tx, 1024 * 1024 * 768);
tx.Commit();
}
using (var tx = env.NewTransaction(TransactionFlags.ReadWrite))
{
var ms = new MemoryStream(value);
for (long i = 0; i < Transactions * ItemsPerTransaction; i++)
{
ms.Position = 0;
env.Root.Add(tx, i.ToString("0000000000000000"), ms);
}
tx.Commit();
}
var countdownEvent = new CountdownEvent(concurrency);
sw.Start();
for (int i = 0; i < concurrency; i++)
{
var currentBase = i;
ThreadPool.QueueUserWorkItem(state =>
{
using (var tx = env.NewTransaction(TransactionFlags.Read))
{
var ms = new byte[100];
for (int j = 0; j < ((ItemsPerTransaction * Transactions) / concurrency); j++)
{
var current = j * currentBase;
var key = current.ToString("0000000000000000");
using (var stream = env.Root.Read(tx, key))
{
while (stream.Read(ms, 0, ms.Length) != 0)
{
}
}
}
tx.Commit();
}
countdownEvent.Signal();
});
}
countdownEvent.Wait();
sw.Stop();
}
}
private static void FillRandomOneTransaction(Stopwatch sw, FlushMode flushMode)
{
var memoryMapPager = new MemoryMapPager(Path, flushMode);
using (var env = new StorageEnvironment(memoryMapPager))
{
var value = new byte[100];
new Random().NextBytes(value);
var ms = new MemoryStream(value);
using (var tx = env.NewTransaction(TransactionFlags.ReadWrite))
{
memoryMapPager.AllocateMorePages(tx, 1024 * 1024 * 768);
tx.Commit();
}
sw.Start();
using (var tx = env.NewTransaction(TransactionFlags.ReadWrite))
{
foreach (var l in _randomNumbers)
{
ms.Position = 0;
env.Root.Add(tx, l.ToString("0000000000000000"), ms);
}
tx.Commit();
}
sw.Stop();
}
}
