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Problem with performance when loading big models [message #508652]

Tue, 19 January 2010 17:51

No real name

Messages: 15
Registered: July 2009

Junior Member

Hello,

i try to load a rather big XML model (the file has 130MB) and it takes more than 8 hours to load the model. Is there some way to improve the loading of the model?

I use the following load options:
XMLResource.OPTION_USE_ENCODED_ATTRIBUTE_STYLE
XMLResource.OPTION_USE_LEXICAL_HANDLER
XMLResour ce.OPTION_DEFER_IDREF_RESOLUTION
XMLResource.OPTION_USE_ENCODED_ATTRIBUTE_STYLE

I already tried the options mentioned in http://www.eclipse.org/modeling/emf/docs/performance/EMFPerf ormanceTips.html with little or no changes in loading time.

Any tipps for performance improvements would be greatly appreciated.

Regards,

Manfred

[Updated on: Tue, 19 January 2010 17:53]

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Re: Problem with performance when loading big models [message #508659 is a reply to message #508652]

Tue, 19 January 2010 13:36

Ed Merks

Messages: 30641
Registered: July 2009

Senior Member

Manfred,

Comments below.

lehman@aquintos.com wrote:
> Hello,
>
> i try to load a rather big XML model (the file has 130MB) and it takes
> more than 8 hours to load the model. Is there some way to improve the
> loading of the model?
> I use the following load options:
> XMLResource.OPTION_USE_ENCODED_ATTRIBUTE_STYLE
> XMLResource.OPTION_USE_LEXICAL_HANDLER,Boolean.TRUEXMLResour
> ce.OPTION_DEFER_IDREF_RESOLUTION, Boolean.TRUE
> XMLResource.OPTION_USE_ENCODED_ATTRIBUTE_STYLE
>
> I already tried the options mentioned in
> http://www.eclipse.org/modeling/emf/docs/performance/EMFPerf ormanceTips.html
> with little or no changes in loading time.
> Any tipps for performance improvements would be greatly appreciated.
Some analysis of where the time is being spent might help too.
ResourceImpl.setIntrinsicIDToEObjectMap might help if intrinsic ID
lookup is the bottleneck.
>
> Regards,
>
> Manfred
>
>

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