Sent from my iPad On 24-Dec-2012, at 17:15, Georges Racinet <gracinet@xxxxxxxxx> wrote: > On 12/24/2012 12:32 PM, John R Pierce wrote: >> On 12/24/2012 2:43 AM, Georges Racinet wrote: >>> Make sure both servers aren't running at the same time >> >> why? its perfectly OK to ahve severla postgres servers running at >> once, as long as they are on different port numbers. I generally use >> 5432, 5433, 5434, etc for this. mostly for development, or for >> migration, not so much on a production system where performance is >> important. >> >> > You're perfectly right. I'm used to have several clusters on the same > host (application testing in my case). > In this benchmark context, though, I just was being wary that they may > interfere, For instance, I suppose that an autovacuum wakeup in one > should lower performance results of the other. > > Sorry it that sounded more general than that. > > > -- > Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-general Hi, Thanks for the extensive discussion. In my case,vacuum performance plays an important role. Hence, I shall run only one server at a time while profiling. Thanks a ton, Atri -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general