X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [200.46.204.144]) by svr1.postgresql.org (Postfix) with ESMTP id A726752A24 for ; Thu, 28 Jul 2005 08:52:06 -0300 (ADT) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 25784-09 for ; Thu, 28 Jul 2005 11:52:01 +0000 (GMT) Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.192]) by svr1.postgresql.org (Postfix) with ESMTP id 2CFEA52A21 for ; Thu, 28 Jul 2005 08:52:00 -0300 (ADT) Received: by wproxy.gmail.com with SMTP id 70so405905wra for ; Thu, 28 Jul 2005 04:52:04 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=tKrcFYMs/fZ5rJKx9Who9FkYMnDk4ApO/1Yy4EL/CUykFHKPSiiCtnt9fjvbzTPck9Dzhu2JW8LIAYisLneHl9jHxLB2ww/Uwnu/Sk7ipJKiIrkJVOs62/mIO7vKJKgC3YxrQ/65auPTSVU+O4M3CHIL0bcT52gR2YTFgoukmSg= Received: by 10.54.120.4 with SMTP id s4mr767597wrc; Thu, 28 Jul 2005 04:52:04 -0700 (PDT) Received: by 10.54.144.11 with HTTP; Thu, 28 Jul 2005 04:52:03 -0700 (PDT) Message-ID: Date: Thu, 28 Jul 2005 13:52:03 +0200 From: Claus Guttesen Reply-To: Claus Guttesen To: Kari Lavikka Subject: Re: Finding bottleneck Cc: pgsql-performance@postgresql.org In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.024 tagged_above=0 required=5 tests=RCVD_BY_IP X-Spam-Level: X-Archive-Number: 200507/435 X-Sequence-Number: 13676 > effective_cache_size =3D 1000000 # typically 8KB each I have this setting on postgresql 7.4.8 on FreeBSD with 4 GB RAM: effective_cache_size =3D 27462 So eventhough your machine runs Debian and you have four times as much RAM as mine your effective_cache_size is 36 times larger. You could try lowering this setting. regards Claus