Hi Ivan, Thanks for the explanation. The difference in speed that I am seeing for RDF/XML vs. NTriples is significant. With the RDF/XML format I am getting a speed of 6000 triples/second where as for NTriples I am getting a speed of 2400 triples/second. I am not sure if such big difference can be accounted to random variations in process/thread scheduling.
Moreover I ran my tests twice and both the times I saw the same results, which indicates that there might be something else going on. Kunal Ivan Mikhailov <[email protected]> wrote: Kunal, I guess that RDF/XML and N3 should demonstrate similar speed of text parsing, in kilobytes of source text per second. If data are the same then the count of triple insertions multiplied by average insertion time is same for both cases and the difference is obviously in some other place. TURTLE and the like are parsed by flex+bison code, RDF/XML parser is written by hands. Nevertheless both are quite fast and random variations in process/thread scheduling may provide bigger difference than serialization format. Best Regards, Ivan Mikhailov, OpenLink Software. On Wed, 2008-03-12 at 12:39 -0700, Kunal Patel wrote: > Hi, > > I have got the same RDF data in two formats, the RDF/XML > serialization format and the NTriples format. I tried loading the > RDF/XML serialization format using the DB.DBA.RDF_LOAD_RDFXML_MT and > the NTriples format using the DB.DBA.TTLP_MT. > > I was hoping that the NTriples format would load much faster then > the RDF/XML serialization format, but on the contrary the RDF/XML > serialization format loaded faster than the NTriples format. Is that > the expected behavior, or am I missing any thing. > > Kunal > > P.S. I am using the NTriples format not the N3 format or the turtle > format. > > > ______________________________________________________________________ > Looking for last minute shopping deals? Find them fast with Yahoo! > Search. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
