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Bug 357160 - GMF slow with large repository (using CDO)
Summary: GMF slow with large repository (using CDO)
Status: RESOLVED INVALID
Alias: None
Product: GMF-Runtime
Classification: Modeling
Component: General (show other bugs)
Version: unspecified   Edit
Hardware: PC Linux
: P3 enhancement
Target Milestone: ---   Edit
Assignee: Project Inbox CLA
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Reported: 2011-09-08 16:52 EDT by David Wynter CLA
Modified: 2011-09-09 04:55 EDT (History)
1 user (show)

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Description David Wynter CLA 2011-09-08 16:52:26 EDT 
Build Identifier: 20110615-0604

Is it possible to not use editing domains and org.eclipse.emf.ecore.util.ECrossReferenceAdapter?

As far as I  can see, GMF is designed to work with editing domains. I'm not against the editing domains, but the one used by GMF

org.eclipse.gmf.runtime.diagram.core.DiagramEditingDomainFactory.DiagramEditingDomain works with org.eclipse.emf.transaction.impl.TransactionChangeRecorder which adds itself to all objects of the resource. So if the repository is quite heavy (and is not yet completely loaded) the performance dies since this behaviour causes to load all objects.

Another one issue is the usage of org.eclipse.emf.ecore.util.ECrossReferenceAdapter, which behaves similarly killing the  application performance.

The generated ResourceSetModificationListener is another place.

Is it possible to enable lazy loading somehow?


Reproducible: Always

Steps to Reproduce:
1.Create a CDO repository with 80,000 objects where some are used in a GMF created editor
2.Start the application. In our case 120 seconds was typical as start up time.
3.
Comment 1 Mariot Chauvin CLA 2011-09-09 04:55:30 EDT 
I could not accept a bugzilla entry like this one.
Please read my entry on the forum to understand a little bit technical issues involved.