Re: [Virtuoso-users] speeding up SPARQL query

2014-04-24 Thread Bart Vandewoestyne
On 2014-04-24 17:59, Hugh Williams wrote: > Hi Bart, > > Hmmm, note sure why you would need to run as root to get the profile > plan, especially if it was not required for explain ? Could it have to do with file/directory permissions? The directory from which I start virtuoso has the following p

Re: [Virtuoso-users] speeding up SPARQL query

2014-04-24 Thread Hugh Williams
Hi Bart, Hmmm, note sure why you would need to run as root to get the profile plan, especially if it was not required for explain ? Anyway, the query profiles will be analysed by development would will be able to advise on how the speed might be improved or why they are slow, so will let you k

Re: [Virtuoso-users] speeding up SPARQL query

2014-04-24 Thread Bart Vandewoestyne
On 2014-04-24 16:45, Bart Vandewoestyne wrote: > > I'm still struggling to get this profiling going... After starting up > my Virtuoso, i immediately try profiling from within ISQL but I get no > output: > > bart@hp-g7-02:~$ isql > OpenLink Interactive SQL (Virtuoso), version 0.9849b. > Type HELP;

Re: [Virtuoso-users] speeding up SPARQL query

2014-04-24 Thread Bart Vandewoestyne
On 2014-04-24 15:16, Hugh Williams wrote: > Hi Bart, > > Is seems the "set profile on" option is not implemented in the VOS isql > program, so will have to make a request to have that option added as > it is in the commercial version. But you still can just run the profile > command with the quer

Re: [Virtuoso-users] speeding up SPARQL query

2014-04-24 Thread Hugh Williams
Hi Bart, Is seems the "set profile on" option is not implemented in the VOS isql program, so will have to make a request to have that option added as it is in the commercial version. But you still can just run the profile command with the query in single quotes directly from isql ie SQL> prof

Re: [Virtuoso-users] first query run takes longer than subsequent runs

2014-04-24 Thread Kingsley Idehen
On 4/24/14 3:58 AM, Bart Vandewoestyne wrote: Hello list, I noticed that for most (if not all) of my queries, the first time the query is run (right after i started the virtuoso server), it takes much longer than all subsequent runs. See e.g. my query timings at https://dl.dropboxusercontent.c

Re: [Virtuoso-users] speeding up SPARQL query

2014-04-24 Thread Bart Vandewoestyne
On 2014-04-23 14:55, Hugh Williams wrote: > Hi Bart, > > You still have not provided the "profile" for each query. You can do > this by running "SET PROFILE ON/OFF" as did for the explain plans ... Hugh, I'm confused here. I am following the instructions on http://virtuoso.openlinksw.com/datas

[Virtuoso-users] first query run takes longer than subsequent runs

2014-04-24 Thread Bart Vandewoestyne
Hello list, I noticed that for most (if not all) of my queries, the first time the query is run (right after i started the virtuoso server), it takes much longer than all subsequent runs. See e.g. my query timings at https://dl.dropboxusercontent.com/u/32340538/long_first_query.png Using dsta