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Date:      Fri, 04 Feb 2000 20:48:05 -0700
From:      "Russell L. Carter" <rcarter@pinyon.org>
To:        Greg Lehey <grog@lemis.com>
Cc:        "Russell L. Carter" <rcarter@pinyon.org>, Wes Peters <wes@softweyr.com>, bpechter@shell.monmouth.com, freebsd-fs@FreeBSD.ORG, rcarter@pinyon.org
Subject:   Re: JFS and IBM 
Message-ID:  <20000205034805.AC2DE5B@pinyon.org>
In-Reply-To: Message from Greg Lehey <grog@lemis.com>  of "Sat, 05 Feb 2000 13:46:36 %2B1030." <20000205134636.J9737@freebie.lemis.com> 

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%On Friday,  4 February 2000 at 20:07:15 -0700, Russell L. Carter wrote:
%>> [moved to -fs]
%>>
%>> On Friday,  4 February 2000 at 15:28:34 -0700, Wes Peters wrote:
%>>> Bill Pechter wrote:
%>>>>
%>>>> Folks, while some of us were at Linux expo talking about journaling file
%>>>> systems and *BSD, IBM released jfs to the GPL.
%>>>>
%>>>> Is there anyone working on this as a gpl'd add-in to *BSD?
%>>>
%>>> You apparently haven't noticed the war of words going on on
%>>> http://daily.daemonnews.org/ on this very topic?  I think this is going
%>>> to be our most "popular", or at least commented on, article to date.
%>>
%>> There was also a discussion in -fs, so I'm following up there.
%>>
%>>> Greg Lehey has downloaded the code and looked at it.  Despite my
%>>> cheering and enthusiasm, he reports that we should wait until he
%>>> actually produces something to pronounce him a hero.  ;^)
%>>
%>> Damn it, you keep mentioning my name.  I'm certainly no hero based on
%>> what I've done or propose to do.  For an update, taking in what phk
%>> had to say the other day: this is the OS/2 version, which has had the
%>> dependencies on the VM system removed.  I consider it likely that, as
%>> a result, performance will be disappointing.  Also I haven't seen any
%>> documentation which explains how it works.  Given the size of the code
%>> base, this would make it quite a challenge.  Maybe somebody else more
%>> stupid^H^H^H^H^H^Hheroic than I wants to have a go.
%>
%> Look folks, is it too hard to understand that an OS/2 filesystem
%> released as "Opensource" might not make any sense at all to burn up
%> anybody's time,
%
%That's not clear.  It might make sense, and I hope somebody takes a
%look.
%
%> Does it look like the IBM mamaship is finally clueing into
%> marketing?
%>
%> Why yes it does!
%
%There are some very good reasons to start with the OS/2 version.  It's
%a lot easier to integrate into Linux, since it doesn't have all the
%hooks for the IBM VM system.  The performance might still be
%acceptable on Linux.  And I could be wrong, and it might even be very
%good.

Hmm, maybe your optimism is realistic.

Ok, when something like this shows up, I like to place a money
bet.  Let's make it fun.  I bet $50 (to Greg) that this is going to go
nowhere and that 2 years from now (Fri Feb  4 20:45:24 MST 2000)
you will not be able to download or buy a Linux OS (or FreeBSD OS) that 
can sustain "large" 10 MB/s read or write performance to the 
native JFS-based filesystem using some native, derived version of JFS to any 
commercially available persistent hardware endsystem not composed of "RAM".  
I'll be gracious on the definition of "RAM".

As always, I hope I lose :-).

Cheers,
Russell

%> Does it look like the thundering herds (hurds) are going to run this
%> into another half to several megabytes a day of mindless drivel on
%> the usual ramifications of a nonexistent technology on a nonexistent
%> marketplace...
%>
%> Why yes it does!
%
%I wouldn't call it nonexistent technology.  It's very real, as is the
%marketplace.
%
%> So get over it.  And lay off Greg.
%
%Thanks, but I don't think anybody's picking on me.
%
%Greg
%--
%Finger grog@lemis.com for PGP public key
%See complete headers for address and phone numbers
%
%




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