I'm sending an HTTPWebRequest to a 3rd party with the code below. The response takes between 2 and 22 seconds to come back. The 3rd party claims that once they receive it, they are sending back a response immediately, and that none of their other partners are reporting any delays (but I'm not sure I believe them -- they've lied before).
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://www.example.com");
request.Timeout = 38000;
request.Method = "POST";
request.ContentType = "text/xml";
StreamWriter streamOut = new StreamWriter(request.GetRequestStream(), System.Text.Encoding.ASCII);
streamOut.Write(XMLToSend); // XMLToSend is just a string that is maybe 1kb in size
streamOut.Close();
HttpWebResponse resp = null;
resp = (HttpWebResponse)request.GetResponse(); // This line takes between 2 and 22 seconds to return.
StreamReader responseReader = new StreamReader(resp.GetResponseStream(), Encoding.UTF8);
Response = responseReader.ReadToEnd(); // Response is merely a string to hold the response.
Is there any reason that the code above would just...pause? The code is running in a very solid hosting provider (Rackspace Intensive Segment), and the machine it is on isn't being used for anything else. I'm merely testing some code that we are about to put into production. So, it's not that the machine is taxed, and given that it is Rackspace and we are paying a boatload, I doubt it is their network either.
I'm just trying to make sure that my code is as fast as possible, and that I'm not doing anything stupid, because in a few weeks, this code will be ramped up to run 20,000 requests to this 3rd part every hour.
There is a few things that I would do: