From owner-freebsd-geom@FreeBSD.ORG Wed Jul 5 19:05:14 2006 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 807CC16A4E0 for ; Wed, 5 Jul 2006 19:05:14 +0000 (UTC) (envelope-from arne_woerner@yahoo.com) Received: from web30307.mail.mud.yahoo.com (web30307.mail.mud.yahoo.com [68.142.200.100]) by mx1.FreeBSD.org (Postfix) with SMTP id 8123543D5F for ; Wed, 5 Jul 2006 19:05:12 +0000 (GMT) (envelope-from arne_woerner@yahoo.com) Received: (qmail 67865 invoked by uid 60001); 5 Jul 2006 19:05:11 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=0CwKNSwb7FoQTmaMqeAzdRnIe2a7hAMD+dyR3/ar4fplCO7qfuHnQ8zPZ5LhjSWWKI0QhLeYz94+2Vu7aRIMHZHIYUcnI8oy8zl9wPEeRkJ9YgtJPQIsgFdMomhtS52QwPP/TTGQHEhiH/yjqFXWZ667In88Fav/eRspCtO3lpc= ; Message-ID: <20060705190511.67863.qmail@web30307.mail.mud.yahoo.com> Received: from [213.54.92.253] by web30307.mail.mud.yahoo.com via HTTP; Wed, 05 Jul 2006 12:05:11 PDT Date: Wed, 5 Jul 2006 12:05:11 -0700 (PDT) From: "R. B. Riddick" To: Eric Anderson In-Reply-To: <44ABFBD5.5020705@centtech.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Cc: freebsd-geom@freebsd.org Subject: Re: new class / geom_cache / request for comments X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Jul 2006 19:05:14 -0000 --- Eric Anderson wrote: > Just curious, how is this different/better than the regular buffer cache? > Hi Eric! The buffer cache? :-) [This remembers me on the episode in The Simpsons where Mr.Burns tried to find the meaning of "re-cyc-ling" in his builtin dictionary] Do you mean this cache of those file systems? If yes: The answer should be: "It just makes everything worse." (there is not even some read ahead...) It is just useful, if you dont have any other caches (e. g. a ufs on a geom_raid5 (I think I should have it tomorrow... :-) ) on some geom_cache providers)... Bye Arne __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com