private void FullSeqBenchmark(object ctobj)
{
chartFullSeq.Invoke(new Action(() =>
{
//chartFullSeq.Series[0].Points.Clear();
}));
CancellationToken token = (CancellationToken)ctobj;
progressBar1.Invoke(new Action(() =>
{
progressBar1.Style = ProgressBarStyle.Marquee;
}));
float ioLengthMB = 64;
int steplengthMB = 1024;
Random random = new Random();
byte[] buffer = new byte[(int)(1024 * 1024 * ioLengthMB)];
GenerateRandomArray(buffer);
string path = diskRootPath + "test.bin";
if (File.Exists(path))
{
File.Delete(path);
}
long freeSpace = DiskOperation.GetHardDiskFreeSpace(diskRootPath);
CreateDummyFile(path, freeSpace - 100 * 1024 * 1024);
SafeFileHandle safeFileHandle = CreateFile(path, FileAccess.ReadWrite, FileShare.None, IntPtr.Zero, FileMode.Open, file_flags, IntPtr.Zero);
using FileStream fileStream = new FileStream(safeFileHandle, FileAccess.ReadWrite, 0, false);
//fileStream.Position = 0;
//fileStream.Write(buffer, 0, steplengthMB * 1024 * ioLengthMB);
//fileStream.Flush();
//progressBar1.Invoke(new Action(() =>
//{
// progressBar1.Style = ProgressBarStyle.Blocks;
//}));
List <double> testPoints = new List <double>();
Stopwatch speedTimer = new Stopwatch();
//Console.WriteLine(Stopwatch.IsHighResolution);
speedTimer.Start();
Thread.Sleep(3000);
//long prenum = 0L;
long previousPos = 0L;
// int loopTimes = 30;
StringBuilder csvBuilder = new StringBuilder();
for (int num = 0; num < freeSpace / (steplengthMB * 1024 * 1024); num++)
{
if (token.IsCancellationRequested)
{
break;
}
//MessageBox.Show((steplengthMB * 1024 * 1024).ToString());
// using SafeFileHandle handle = File.OpenHandle(path + num.ToString(), FileMode.Create, FileAccess.Write, FileShare.None, FileOptions.WriteThrough
//, preallocationSize: steplengthMB * 1024 * 1024); // new API (preview 6)
// using FileStream fileStream = new FileStream(handle, FileAccess.ReadWrite, 0, false);
//Write steplengthMB
double previousTime = speedTimer.Elapsed.TotalMilliseconds;
for (int p = 0; p < steplengthMB / ioLengthMB; p++)
{
fileStream.Position = previousPos + (int)(1024 * 1024 * p * ioLengthMB);
fileStream.Write(buffer, 0, (int)(1024 * 1024 * ioLengthMB));
//fileStream.Flush();
}
double curTime = speedTimer.Elapsed.TotalMilliseconds;
//Console.WriteLine((curTime - previousTime) / 1000.0);
double curSpeed = (float)steplengthMB / ((curTime - previousTime) / 1000.0);
//Console.WriteLine(curSpeed);
Debug.WriteLine(curSpeed);
previousPos = previousPos + steplengthMB * 1024 * 1024;
//continue;
//GenerateRandomArray(buffer);
if (num == 0)
{
continue;
}
_ = UpdateChart(csvBuilder, num, curSpeed, steplengthMB);
//Thread tChart = new Thread(new ThreadStart(() =>
//{
// chartFullSeq.Invoke(new Action(() =>
// {
// //chartFullSeq.Series[0].Points.AddY(curSpeed);
// chartFullSeq.Series[0].Points.AddXY((num - 1) / 4.0, curSpeed);
// }));
// csvBuilder.Append(((num - 1) / 4.0).ToString());
// csvBuilder.Append(",");
// csvBuilder.Append(curSpeed);
// csvBuilder.AppendLine(",");
//}));
}
fileStream.Close();
File.Delete(path);
speedTimer.Stop();
File.WriteAllText("FullSeq_" + DateTime.Now.ToString("yyyy-MM-ddTHH-mm-ss") + ".csv", csvBuilder.ToString());
progressBar1.Invoke(new Action(() =>
{
progressBar1.Style = ProgressBarStyle.Continuous;
progressBar1.Value = 100;
}));
}
private void button1_Click(object sender, EventArgs e)
{
if (UdObj == null)
{
MessageBox.Show("请选择移动磁盘");
return;
}
if (checkBoxScenario.Checked)
{
//Write4K_MultiThread(txtUDisk.Text + "test.bin", 16);
//return;
}
if (btnStart.Text == "开始")
{
cts.Dispose();
cts = new CancellationTokenSource();
tBench = new Thread(() =>
{
try
{
if (checkBoxFast.Checked)
{
FastBenchmark(cts.Token);
}
if (checkBoxThread.Checked)
{
if (DiskOperation.GetHardDiskFreeSpace(diskRootPath) < 20 * 1024 * 1024)
{
MessageBox.Show("至少需要20GB可用空间进行测试！");
return;
}
if (checkBoxFast.Checked)
{
Thread.Sleep(10000);
}
MultiThreadBenchmark(cts.Token);
}
if (checkBoxFullSeq.Checked)
{
FullSeqBenchmark(cts.Token);
Thread.Sleep(10000);
}
if (checkBoxScenario.Checked)
{
if (DiskOperation.GetHardDiskFreeSpace(diskRootPath) < 20 * 1024 * 1024)
{
MessageBox.Show("至少需要20GB可用空间进行测试！");
return;
}
progressBar1.Invoke(new Action(() =>
{
progressBar1.Style = ProgressBarStyle.Marquee;
}));
List <Scenario> scenarios = new List <Scenario>();
scenarios.Add(CSVReader.Read(@".\Scenarios\normal_web.csv"));
long total_IO = ScenarioBenchmark(scenarios, cts.Token);
labelSceRes.Invoke(new Action(() => { labelSceRes.Text = (total_IO / 1000).ToString(); }));
progressBar1.Invoke(new Action(() =>
{
progressBar1.Style = ProgressBarStyle.Blocks;
}));
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
btnStart.Invoke(new Action(() => { btnStart.Text = "开始"; }));
});
tBench.Start();
btnStart.Text = "停止";
}
else
{
if (tBench != null)
{
cts.Cancel();
//tBench.Abort();
//Environment.Exit(0);
}
btnStart.Text = "开始";
}
}