Re: [Virtuoso-users] Ways to speeding up a large query

2014-10-30 Thread Hugh Williams
Hi Eliza, The default indexes in place should suffice for most use cases, thus cause of the slow running query needs to be determined. How long does the query take to execute when cold ie first run and when warmed up ie on consecutive runs ? Please provide the output of running the "status();"

[Virtuoso-users] Ways to speeding up a large query

2014-10-30 Thread Eliza Chan
Hi, I have a SPARQL query that took more than 25 sec to return with some results. Our database size is 700 MB, with about 2 GB of free memory. Our data are stored in multiple graphs. The virtuoso.ini file was configured as follows: NumberOfBuffers = 17 MaxDirtyBuffers = 13 MaxCheckpoint