Received: from magus.postgresql.org ([87.238.57.229]) by malur.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1TGsNZ-0001oa-Do for pgsql-performance@postgresql.org; Wed, 26 Sep 2012 14:14:21 +0000 Received: from sam.nabble.com ([216.139.236.26]) by magus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1TGsNY-0001y8-5M for pgsql-performance@postgresql.org; Wed, 26 Sep 2012 14:14:20 +0000 Received: from [192.168.236.26] (helo=sam.nabble.com) by sam.nabble.com with esmtp (Exim 4.72) (envelope-from ) id 1TGsNX-0003HN-AQ for pgsql-performance@postgresql.org; Wed, 26 Sep 2012 07:14:19 -0700 Date: Wed, 26 Sep 2012 07:14:19 -0700 (PDT) From: FFW_Rude To: pgsql-performance@postgresql.org Message-ID: <1348668859243-5725505.post@n5.nabble.com> In-Reply-To: <506307E2.4060504@ulb.ac.be> References: <1348662446741-5725486.post@n5.nabble.com> <1348664629662-5725491.post@n5.nabble.com> <50630162.2090603@ulb.ac.be> <506307E2.4060504@ulb.ac.be> Subject: Re: Same query doing slow then quick MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -0.1 (/) X-Archive-Number: 201209/130 X-Sequence-Number: 47876 Thank for you answer. shared_buffer is at 24Mb effective_cache_size at 2048Mb What do you mean properly ? That's not really helping a novice... -- View this message in context: http://postgresql.1045698.n5.nabble.com/Same-query-doing-slow-then-quick-tp5725486p5725505.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com.