Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id DD2EC650EA8 for ; Wed, 25 Jun 2008 17:06:06 -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 56719-07 for ; Wed, 25 Jun 2008 17:05:56 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from westnet.com (westnet.com [216.187.52.2]) by postgresql.org (Postfix) with ESMTP id 4B87F650EA1 for ; Wed, 25 Jun 2008 17:05:59 -0300 (ADT) Received: from westnet.com (localhost [127.0.0.1]) by westnet.com (8.14.0/8.14.0) with ESMTP id m5PK5oaV012319; Wed, 25 Jun 2008 16:05:50 -0400 (EDT) Received: from localhost (gsmith@localhost) by westnet.com (8.14.0/8.13.2/Submit) with ESMTP id m5PK5nDn012310; Wed, 25 Jun 2008 16:05:49 -0400 (EDT) X-Authentication-Warning: westnet.com: gsmith owned process doing -bs Date: Wed, 25 Jun 2008 16:05:49 -0400 (EDT) From: Greg Smith X-X-Sender: gsmith@westnet.com To: Merlin Moncure cc: "Joshua D. Drake" , Scott Marlowe , Adrian Moisey , pgsql-performance@postgresql.org Subject: Re: Hardware vs Software RAID In-Reply-To: Message-ID: References: <48622660.4050403@careerjunction.co.za> <1214409331.28228.8.camel@jd-laptop> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200806/152 X-Sequence-Number: 30502 On Wed, 25 Jun 2008, Merlin Moncure wrote: > So, based on this and other experiences, i'm starting to be more partial > to linux distributions with faster moving kernels, mainly because i > trust the kernel drivers more than the vendor provided drivers. Depends on how fast. I find it takes a minimum of 3-6 months before any new kernel release stabilizes (somewhere around 2.6.X-5 to -10), and some distributions push them out way before that. Also, after major changes, it can be a year or more before a new kernel is not a regression either in reliability, performance, or worst-case behavior. -- * Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD