Does "for" in .Net Framework 4.0 execute loops in parallel? Or why is the total not the sum of the p
- by Shiraz Bhaiji
I am writing code to performance test a web site. I have the following code:
string url = "http://xxxxxx";
System.Diagnostics.Stopwatch stopwatch = new System.Diagnostics.Stopwatch();
System.Diagnostics.Stopwatch totalTime = new System.Diagnostics.Stopwatch();
totalTime.Start();
for (int i = 0; i < 10; i++)
{
stopwatch.Start();
WebRequest request = HttpWebRequest.Create(url);
WebResponse webResponse = request.GetResponse();
webResponse.Close();
stopwatch.Stop();
textBox1.Text += "Time Taken " + i.ToString() + " = " + stopwatch.Elapsed.Milliseconds.ToString() + Environment.NewLine;
stopwatch.Reset();
}
totalTime.Stop();
textBox1.Text += "Total Time Taken = " + totalTime.Elapsed.Milliseconds.ToString() + Environment.NewLine;
Which is giving the following result:
Time Taken 0 = 88
Time Taken 1 = 161
Time Taken 2 = 218
Time Taken 3 = 417
Time Taken 4 = 236
Time Taken 5 = 217
Time Taken 6 = 217
Time Taken 7 = 218
Time Taken 8 = 409
Time Taken 9 = 48
Total Time Taken = 257
I had expected the total time to be the sum of the individual times. Can anybody see why it is not?
