Would it be possible to use the neo4j entitystore in combination with the neo4j traversal API directly for faster queries?
Cheers, Marc On 2011-12-12, at 15.01, Falko Bräutigam wrote: > Hey guys, > > I'm working on a geo spatial application using Qi4j to model the domain > specific parts. I ran into trouble with the performance and memory > consumption. > > It takes ~30s to load 10.000 entities (consisting of ~100k ValueComposites of > different types). After loading all this eats up ~100MB of RAM. This is to > slow and to much. > > 10K entities are not much for a GIS application. Given the current memory > foodprint (and 1GB Java heap) not even 10 users can work with the application > concurrently. > > Usually a GIS application works in a pipelined mode when rendering features > (entities). Memory is never a problem with that architecture. Unfortunatelly > Qi4j holds all entities of an UoW in memory. We discussed this earlier on > this list. So I added a cache SPI to UnitOfWorkInstance. This works but it > does not actually cure the problem of memory consumption because of the time > needed to re-instantiate the entities. > > Any ideas on this would be greatly appreciated. > > -Falko > -- > Falko Bräutigam > http://polymap.org/polymap3 > > _______________________________________________ > qi4j-dev mailing list > [email protected] > http://lists.ops4j.org/mailman/listinfo/qi4j-dev _______________________________________________ qi4j-dev mailing list [email protected] http://lists.ops4j.org/mailman/listinfo/qi4j-dev
