private Task<BenchmarkResult> DoWrite(BenchmarkParameters parameters, bool seq)
{
var random = new Random();
var generator = new RandomGenerator();
var result = new BenchmarkResult(parameters);
var tasks = new List<Task>(parameters.Num);
long bytes = 0;
for (var i = 0; i < parameters.Num; i += parameters.EntriesPerBatch)
{
var batch = new WriteBatch();
for (var j = 0; j < parameters.EntriesPerBatch; j++)
{
var k = seq ? i + j : random.Next() % options.Num;
var key = string.Format("{0:0000000000000000}", k);
batch.Put(key, generator.Generate(parameters.ValueSize));
bytes += parameters.ValueSize + key.Length;
result.FinishOperation();
}
tasks.Add(storage.Writer.WriteAsync(batch, new WriteOptions
{
FlushToDisk = parameters.Sync
}));
}
result.AddBytes(bytes);
return Task.WhenAll(tasks).ContinueWith(t => result);
}
private async Task ProcessWrites(int size, int timeToWait)
{
var generator = new RandomGenerator();
var random = new Random();
while (true)
{
try
{
var batchSize = random.Next(1, 10);
var batch = new WriteBatch();
for (var i = 0; i < batchSize; i++)
{
var k = random.Next();
var key = string.Format("{0:0000000000000000}", k);
batch.Put(key, generator.Generate(size));
}
await storage.Writer.WriteAsync(batch);
statistics.NumberOfWrites += batchSize;
statistics.NumberOfWritesSinceLastReport += batchSize;
statistics.BytesWritten += batchSize * (size + 16);
await Task.Delay(timeToWait);
}
catch (Exception)
{
statistics.NumberOfWriteExceptions++;
}
}
}
private Task<BenchmarkResult> ReadWhileWriting(BenchmarkParameters parameters)
{
var random = new Random();
var generator = new RandomGenerator();
var readTask = ReadRandom(parameters);
Task.Factory.StartNew(async () =>
{
while (readTask.IsCompleted == false)
{
var batch = new WriteBatch();
var k = random.Next() % options.Num;
var key = string.Format("{0:0000000000000000}", k);
batch.Put(key, generator.Generate(parameters.ValueSize));
await storage.Writer.WriteAsync(batch);
}
});
return readTask;
}
private async Task DoWrite(Storage storage, int num, bool seq)
{
var random = new Random();
var generator = new RandomGenerator();
for (var i = 0; i < num; i += 1)
{
var batch = new WriteBatch();
for (var j = 0; j < 1; j++)
{
var k = seq ? i + j : random.Next() % num;
var key = string.Format("{0:0000000000000000}", k);
batch.Put(key, generator.Generate(100));
}
await storage.Writer.WriteAsync(batch);
}
}
