Re: Giving monetdb a fair chance

Hi Martin, Le 11/07/2013 22:44, Martin Kersten a écrit :

These numbers add not up to 450 seconds.

Yes, 450 account for the multiple requests Mondrian sends to make up its ROLAP cube. But I have tried to narrow my searches to one query that seemed significant (more than 4 seconds vs less than 200 ms on Pg).

I have the suspicion that you have encountered the Linux problem with HugePageMap management. This can lead to unexpected stalls.

Sjoerd/Niels can give you the details to avoid it. Great, this seems like an interesting track to follow...

Thanks a lot for your input, Reagards, Franck