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Extremely poor load performance into RDF store

681909Apr 8 2010 — edited Apr 13 2010

We are seeing unacceptably poor performance loading our RDF models. We have triedloading with Jena adaptor as well as loading using the BatchLoader class. Either way, the absolute best rate we have seen is about 20000/minute. Here are the specs:

Loading a triples file from disk which contains 5.08 million triples
Oracle 11gr2 running on Enterprise Linux64 with 16 GB RAM
Oracle 11gr2 running on Solaris 10 with all the latest patches and packages...64 bit with 8GB RAM

Sun is a bit slower than linux, but both are quite poor. I can load the identical triples file into Allegro running on my desktop PC and consistently get load rates of 1 million per minute.

Can anyone suggest what could be causing this performance issue? Oracle is a very recent install on both the sun and linux boxes, and there is nothing whatsoever running on either one other than oracle, and I am the only oracle user. All install and parameter settings are oracle default.

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Locked on May 11 2010

Added on Apr 8 2010

#database-key-features, #rdf-graph-property-graph

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