From: Hans Reiser <reiser@namesys.com>
To: matthew@psychohorse.com
Cc: reiserfs-list <reiserfs-list@namesys.com>
Subject: Re: Silly question, defrag
Date: Wed, 03 Apr 2002 22:28:25 +0400 [thread overview]
Message-ID: <3CAB49C9.9000504@namesys.com> (raw)
In-Reply-To: 200204030808.26186@X-Message-Flag:
Matthew Johnson wrote:
>>Defragging is a missing feature. It will be the most important feature
>>of V4.1
>>
>
>4.1 seems pretty exciting, but why the need to defrag on these filesystems vs
>others. Or do we not yet have the data? Guess I am intrigued on how these
>work. Will defrag be included for peace of mind, or for real gain? How much
>fragmentation can one expect? Will you need to unmount drives to defrag?
>
>Sorry for all the questions...
>
>Matt
>
>
>
The reiser4.1 repacker will not just defrag, it will repack, and maybe
even someday compress unaccessed data.
There are a whole host of optimizations that are too expensive to do
with every write, but very reasonable to do once a day. Repack will be
great!
As for why is it not in V3, the reason is simple. Code freeze hit, and
it was not yet started....
Hans
next prev parent reply other threads:[~2002-04-03 18:28 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200204030017.12595@X-Message-Flag:>
2002-04-03 8:21 ` Silly question, defrag Joe Cooper
2002-04-03 8:25 ` Hans Reiser
2002-04-03 16:14 ` Matthew Johnson
[not found] ` <200204030808.26186@X-Message-Flag:>
2002-04-03 18:28 ` Hans Reiser [this message]
2002-04-03 16:08 ` Matthew Johnson
2002-04-03 18:31 ` Anders Widman
2002-04-03 18:47 ` Yura Umanets
2002-04-03 21:41 ` Anders Widman
[not found] ` <200204030740.05950@X-Message-Flag:>
2002-04-03 18:24 ` Hans Reiser
2002-04-03 19:33 ` matthew johnson
2002-04-04 0:45 ` Tracy R Reed
2002-04-04 1:42 ` rod
2002-04-04 5:19 ` The Amazing Dragon
[not found] ` <20020404161547.GD3990@jensbenecke.de>
2002-04-05 0:04 ` rod
2002-04-07 4:52 ` The Doctor What
2002-04-03 20:30 ` Ross Vandegrift
2002-04-03 20:37 ` Richard Thornton
2002-04-03 20:44 ` Hans Reiser
2002-04-03 23:49 ` Tracy R Reed
2002-04-04 1:58 ` Manuel Krause
2002-04-04 9:16 ` Anders Widman
2002-04-04 18:54 ` Tracy R Reed
2002-04-04 19:09 ` Valdis.Kletnieks
2002-04-04 19:20 ` Anders Widman
2002-04-04 22:18 ` Rodd Zurcher
2002-04-04 22:34 ` Benjamin Scott
2002-04-05 5:31 ` Ross Vandegrift
2002-04-05 6:19 ` Anders Widman
2002-04-05 13:50 ` Benjamin Scott
2002-04-05 15:07 ` Hans Reiser
2002-04-05 8:49 ` Hans Reiser
2002-04-05 13:50 ` Benjamin Scott
2002-04-05 14:04 ` Valdis.Kletnieks
2002-04-05 14:20 ` Benjamin Scott
2002-04-05 15:13 ` Hans Reiser
2002-04-05 13:53 ` Stefan Fleiter
2002-04-05 18:56 ` Chris Dukes
2002-04-05 22:33 ` Stefan Fleiter
2002-04-03 8:20 Matthew Johnson
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