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.NET Forum / ASP.NET / Web Services / September 2006

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MTOM data size

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GregBor - 23 Sep 2006 11:00 GMT
Hi,
When I turned MTOM on, I can see MIME boundaries in the SOAP messages, so it
must be working. But when I compare the Input/Output trace files with or
without MTOM, the file sizes are the same. I expected 30% reduction in size
with MTOM.
What am I missing? Is it got to do with encoding of trace files?

Thank you for your help,
Greg
GregBor - 23 Sep 2006 11:05 GMT
Oops, one more question:
Why should one use DIME attachments with WSE2.0 at all? Couldn't you just
send binary data "as usual", like as one-long-parameter of webmethod ?

I know it's silly, but still :) Thanks!
Martin Kulov [MVP] - 24 Sep 2006 14:00 GMT
> Oops, one more question:
> Why should one use DIME attachments with WSE2.0 at all? Couldn't you just
> send binary data "as usual", like as one-long-parameter of webmethod ?

Greg,

there no silly questions you know.

Here is one shameless plug:

Read my article on VSM - Implement a File Transfer Web Service
http://www.ftponline.com/vsm/2006_05/magazine/columns/gettingstarted/

Let me know if you have more questions.

Thanks,

Signature

Martin Kulov
http://www.codeattest.com/blogs/martin

MVP, MCT, MCSD, MCPD

GregBor - 24 Sep 2006 14:54 GMT
Thank you for a wonderful article.
I still have the question why are Input/OutputTrace.webinfo the same sizes
with or without MTOM?

Thanks in advance,
Grega

> > Oops, one more question:
> > Why should one use DIME attachments with WSE2.0 at all? Couldn't you just
[quoted text clipped - 12 lines]
>
> Thanks,
Martin Kulov [MVP] - 28 Sep 2006 02:10 GMT
> Thank you for a wonderful article.
> I still have the question why are Input/OutputTrace.webinfo the same sizes
> with or without MTOM?

May be your test data is too small and MTOM is never fired up. For small
chunks of data WSE uses base64 encoding.
Can you provide some input/outputtrace.webinfo files?

Thanks,

Signature

Martin Kulov
http://www.codeattest.com/blogs/martin

MVP, MCT, MCSD, MCPD


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