------------------ Original ------------------ From: "Martin Kersten"<Martin.Kersten@cwi.nl>; Date: Fri, Jul 26, 2013 04:46 PM To: "users-list"<users-list@monetdb.org>; Subject: Re: Monetdb copy binary time varys very much! Hi, You should plot the times of each of your runs to see the trend. This single run may be an outlier, which could come from anything in your system environment. Even a seemingly harmless concurrent program using significant memory could compete with MonetDB. And indeed, at some point you will see disk IO. regards, Martin