[redland-dev] What is the expected performance of a sparql Query?
Kieron Taylor
krt1 at soton.ac.uk
Wed Aug 20 21:34:39 BST 2008
I have queried small triplestores with SPARQL and experienced near
instantaneous responses. 20,000 should be trivial for in-memory queries.
I suspect you're doing something slow in your query, rather than there
being something odd in your data model.
Would you like to post the query?
Kieron
Lou Sakey wrote:
> I have Redland model with 20,000 triples using the Berkeley DB
> storage option. I am performing a sparql query using
> librdf_new_query() and librdf_query_execute() to search for all
> people that are male and born between two dates.
>
> There are a total of 500 people in the model. Each person has a sex
> property and a birthday property (among others). It took over 8
> minutes for librdf_query_execute() to complete on a dual core 2.16
> GHZ processor with 2 gigabytes of memory.
>
> Is this the expected behavior?
>
> Thanks in advance
>
> Lou
>
>
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