Re: IIS performance sending XmlDocument

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I did some more testing in an attempt to understand why it takes the ..net web service 35-45s to deliver a 300K xml value to the client.


I used VS.NET and set breakpoints to see how long each of the first steps takes:

	Time to return data to data reader	<1s
	Time to create the XML document from data	<1s

At this point the XML return value from the web method is ready to send...so it's not in the code.

Then what I did is save the resulting XML as a file, and try to send it as a static document, to see if its the webserver or the network:

The time for this is:

	Time to send the data over the network	11s

Then I tested it running the browser on the web server, so it wasn't going out on the network:

	Time to load page into IIS and send	1-2s


So, sending the file over the network definitely adds time -- and tells me our network is quite slow since this is a relatively small file. But it doesn't explain the other 20-30s in sending the XML via the web server. Could it be:

	Time to serialize XML data	?20-30s

That is, does IIS/.NET take that long to encapsulate the data as a SOAP object?

Or can someone suggest another cause?





Kevin Spencer wrote: 
Hi John,

It must have something to do with the OS or the hardware. I must confess I don't run .Net apps on Windows 2000, so I can't really tell you for sure.

.

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