From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans Reiser Subject: Re: Object Oriented FS Date: Mon, 27 Oct 2003 22:01:12 +0300 Message-ID: <3F9D6B78.2090001@namesys.com> References: <200310271843.KAA08513@amber.he.net> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <200310271843.KAA08513@amber.he.net> List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Mike Young Cc: 'darren' , reiserfs-list@namesys.com Mike Young wrote: >Hans, > >Do you believe this is just a marketing convention to refer to a file-system >as an object oriented one? > No. Also, note that they aren't saying the fs is object oriented, they are saying the storage system is not a block device but an object server. > Bear in mind that Microsoft is supposed to >enrich their NTFS with object support from SQL Server in their next OS. > Reiser4 and MS are talking about different layers than Panassas when we talk about being object oriented. MS objects and Reiser4 plugins might be similar notions, I am not an NTFS expert..... > The >code name for this is Longhorn. > >I really can't tell what this means to a file system in terms of support. >It sounds like it's intended to provide support for really large numbers of >files in a single directory > Uh, reiser4 does that without objects having anything to do with it. Large numbers of files in a single directory means one should use trees not linear searches..... > vs. nested ones. But I'm just not sure. Do you >see a limitation, going forward, with Reiser4 and large numbers of files? > > We have trouble with more than 2^60 files in the filesystem. ;-) An interesting question though is at how many files in a directory being read does dcache start to croak and sys_reiser4 becomes a performance necessity....? Maybe in a few weeks Mr. Demidov can measure that. >Thanks, > >Mike > >-----Original Message----- >From: Hans Reiser [mailto:reiser@namesys.com] >Sent: Monday, October 27, 2003 10:23 AM >To: darren >Cc: reiserfs-list@namesys.com >Subject: Re: Object Oriented FS > >darren wrote: > > > >>allows very high >>throughput by scaling >> >> >> >> >> >> >> >Do you know what that means? (Seriously, I don't....) > > > -- Hans