XMLtextWriter speed test

[billz]

I am writing a large XML file that consists of multiple identical intervals of data. Each interval is around 10 MB and I am timing how long it takes to write the file. My timer shows that the first interval takes 4 seconds while the last takes 79 seconds. Graphing the time for all intervals shows a fairly straight line. I am suspecting that a full file seek is done before each write. I am wondering if this is a known problem and whether there is a way to eliminate this behavior. By the way, reading the file shows similar behavior although much much faster.

[dorinbogdan]

Welcome to TheScripts TSDN...

Did you try to use XMLDocument? Or a temp file?

If not already seen, read this article, it will be helpful.

Dorin.

[dorinbogdan]

Also, it may increase the performance if use a combination of XMLTextWriter and XMLDocument, like this method.

[billz]

So in this article, where the example shows how to create the "big" xml file, consider running it with timers at every 1000 lines. You will see that each 1000 lines will take longer to be created. That's the issue I am dealing with rather than appending to the file after the fact (that's for later).

Welcome to TheScripts TSDN...

Did you try to use XMLDocument? Or a temp file?

If not already seen, read this article, it will be helpful.

Dorin.