Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 9B215650EBF for ; Mon, 30 Jun 2008 23:09:04 -0300 (ADT) Received: from postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 56466-02 for ; Mon, 30 Jun 2008 23:08:37 -0300 (ADT) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from rv-out-0506.google.com (rv-out-0506.google.com [209.85.198.236]) by postgresql.org (Postfix) with ESMTP id 0B1BF650EB7 for ; Mon, 30 Jun 2008 23:08:41 -0300 (ADT) Received: by rv-out-0506.google.com with SMTP id b25so1920194rvf.43 for ; Mon, 30 Jun 2008 19:08:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=iUuJhM2HOJe8mY8C0Zr8DccdNqQ36VCPi9gt9Ul/ODw=; b=IqL6KyymLdeGsnF8HjL1dOZwdRhItK5+rI5aab38Xv1bSxM36J+dzjT1J+QqN8Om9G SOUfwbPn/bNiyFjevmDV15UEuXFnAT9bkXxWXjirOGVIsfVzjMTJtmsRbKdZLoGDdI/S eF2VVAiw1VSQm7G2boL6mPU0neKFbO4uMvIfQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=vLwLM6FVOesO6ceE4jeawSUTRjAYRVWD409qCaPFK+jeKv55cF9Vs/V3EFBhso2Prx YerlLgE1mWwBrKNtdMl/Ou5jsHSwRej3ORxE84zlMiRE3OfD+gVtI/+IPPCLJlrhwm7W ZLUQT+CB71O0b+lPSHJ8V3GZon+yMOrRrOtBI= Received: by 10.114.130.1 with SMTP id c1mr4992905wad.152.1214878119994; Mon, 30 Jun 2008 19:08:39 -0700 (PDT) Received: by 10.114.180.17 with HTTP; Mon, 30 Jun 2008 19:08:39 -0700 (PDT) Message-ID: Date: Mon, 30 Jun 2008 20:08:39 -0600 From: "Scott Marlowe" To: "Alvaro Herrera" Subject: Re: Configuring Shared Buffers Cc: "Rafael Domiciano" , "Tino Schwarze" , pgsql-admin@postgresql.org In-Reply-To: <20080701010927.GH18252@alvh.no-ip.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <3a0028490806301052y193a4aeayfcc6deafdeb1cdb2@mail.gmail.com> <20080630182830.GA5358@easy2.in-chemnitz.de> <3a0028490806301201m5e4c48d4qc51a880b8f80ecf5@mail.gmail.com> <20080701010927.GH18252@alvh.no-ip.org> X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200806/270 X-Sequence-Number: 29608 On Mon, Jun 30, 2008 at 7:09 PM, Alvaro Herrera wrote: > Rafael Domiciano escribi=F3: >> The Postgres version is 8.3.3 and I am using Fedora Core 8. >> I have in the actual server around 70 connections the same time. I am >> assigning for this 100. > > 100 MB? That's not very much either. You can probably get a hefty > performance boost by upping it a lot more (depending on whether the > machine is doing something else, or Postgres is the only service running > on it.) I think he was talking about max connections. As for shared buffers, I'd start out at about 25% main memory for 8.3.3 and test that. Also, he should be looking at his setting for work_mem