Have you tried repeating the tests after the database has been "warmed up" (loaded into cache)?
-------- Original Message -------- Subject: [SPAM] [Neo4j] R-Tree indexing performance From: Dave Hesketh <[1][email protected]> Date: Fri, December 17, 2010 9:43 am To: [2][email protected] I'm currently comparing the performance of R-Tree indexing in Neo4j with PostGIS/PostgreSQL. The database and index has been created and searched in Neo4j using Davide Savazzi routines : ShapefileImported and SearchWithin. The test dataset is 28,000 points (clustered around San Franciso and Vancouver) and the search is for the points within 1000 randomly generated 'circles' (ie 16 sided polygons). On average, each search in Neo4j takes 4 times longer than in PostGIS. Now I know the processing is working correctly I want to progressively increase the number of points to 10,000,000. Can anybody give me advice/tips on improving the performance in Neo4j before I start scaling-up the test? At this stage, I am only interested in the search performance. Neo4j Version: 1.2.M05 Environment: Windows 7, i5 64bit processor, quad core 4GB Thanks Dave _______________________________________________ Neo4j mailing list [3][email protected] [4]https://lists.neo4j.org/mailman/listinfo/user References 1. mailto:[email protected] 2. mailto:[email protected] 3. mailto:[email protected] 4. https://lists.neo4j.org/mailman/listinfo/user _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
