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 9A9B452AE5 for ; Tue, 26 Jul 2005 15:23:42 -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 07828-04 for ; Tue, 26 Jul 2005 18:23:31 +0000 (GMT) Received: from mail.mi8.com (d01gw04.mi8.com [63.240.6.44]) by svr1.postgresql.org (Postfix) with ESMTP id 12E55529E1 for ; Tue, 26 Jul 2005 15:23:30 -0300 (ADT) Received: from 172.16.1.110 by mail.mi8.com with ESMTP (- Welcome to Mi8 Corporation www.Mi8.com (D4)); Tue, 26 Jul 2005 14:23:24 -0400 X-Server-Uuid: C8FB4D43-1108-484A-A898-3CBCC7906230 Received: from MI8NYCMAIL06.Mi8.com ([172.16.1.175]) by D01SMTP01.Mi8.com with Microsoft SMTPSVC(6.0.3790.211); Tue, 26 Jul 2005 14:23:23 -0400 Received: from 67.103.45.218 ([67.103.45.218]) by MI8NYCMAIL06.Mi8.com ( [172.16.1.219]) via Exchange Front-End Server mi8owa.mi8.com ( [172.16.1.104]) with Microsoft Exchange Server HTTP-DAV ; Tue, 26 Jul 2005 14:23:22 -0500 User-Agent: Microsoft-Entourage/11.1.0.040913 Date: Tue, 26 Jul 2005 11:23:23 -0700 Subject: Re: Cheap RAM disk? From: "Luke Lonergan" To: "John A Meinel" , "Postgresql Performance" Message-ID: In-Reply-To: <42E6661D.3060304@arbash-meinel.com> MIME-Version: 1.0 X-OriginalArrivalTime: 26 Jul 2005 18:23:23.0642 (UTC) FILETIME=[1BAD15A0:01C5920F] X-WSS-ID: 6EF8A0112VG209975-03-01 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=1.578 tagged_above=0 required=5 tests=AWL, FORGED_RCVD_HELO, RCVD_NUMERIC_HELO X-Spam-Level: * X-Archive-Number: 200507/394 X-Sequence-Number: 13635 Yup - interesting and very niche product - it seems like it's only obvious application is for the Postgresql WAL problem :-) The real differentiator is the battery backup part. Otherwise, the filesystem caching is more effective, so put the RAM on the motherboard. - Luke