Hi!!!

I have a small dataset that i write to a .xml file.
The file is only 400bytes.

when i start the application and do a ds.ReadXml on the file, it takes 4
seconds.
Is it supposed to take this long ?

Take a look at these tips from Iliya Tumanov:

http://groups-beta.google.com/group/...028d157d945a98

http://blog.opennetcf.org/ayakhnin/P...7-f337ab6d1feb

--
Alex Yakhnin, .NET CF MVP
www.intelliprog.com
www.opennetcf.org

"Geir Sanne" wrote:

> Hi!!!
>
> I have a small dataset that i write to a .xml file.
> The file is only 400bytes.
>
> when i start the application and do a ds.ReadXml on the file, it takes 4
> seconds.
> Is it supposed to take this long ?

It takes a while (about 3-4 seconds) to JIT DataSet and XML code which is
rather big.
So, no matter how small your file is, it would take about 3-4 seconds to
load it the first time.
Second pass should be below 1 second for small files.

For bigger files, install SP2 (or 3 as soon as available) to improve
ReadXml() performance and use schema.
You can expect 1MB XML loaded in about 30 seconds on PXA255-400MHz and PPC
2003 device.

Best regards,

Ilya


This posting is provided "AS IS" with no warranties, and confers no rights.

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>
> Hi!!!
>
> I have a small dataset that i write to a .xml file.
> The file is only 400bytes.
>
> when i start the application and do a ds.ReadXml on the file, it takes 4
> seconds.
> Is it supposed to take this long ?
>

Hi.
Another way to solve the performance problem is to write your own DataSet
loader.

I had worse performance problems and I ended up writing a class that
inherits from DataSet and adds a LoadFromCSV(...) method
[http://www.egilh.com/blog/archive/2004/11/28/363.aspx].

Cheers,
egilh

"Alex Yakhnin [MVP]" <(E-Mail Removed)> wrote in message
news:C82F5E84-69A2-4B36-AD89-(E-Mail Removed)...
> Take a look at these tips from Iliya Tumanov:
>
>
http://groups-beta.google.com/group/...028d157d945a98
>
>
http://blog.opennetcf.org/ayakhnin/P...7-f337ab6d1feb
>
> --
> Alex Yakhnin, .NET CF MVP
> www.intelliprog.com
> www.opennetcf.org
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