Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 22 Jul 1997 11:01:01 -0700 (MST)
From:      Terry Lambert <terry@lambert.org>
To:        terry@lambert.org (Terry Lambert)
Cc:        abial@korin.warman.org.pl, freebsd-hackers@FreeBSD.ORG
Subject:   Re: Compressed FS
Message-ID:  <199707221801.LAA13642@phaeton.artisoft.com>
In-Reply-To: <199707220018.RAA12149@phaeton.artisoft.com> from "Terry Lambert" at Jul 21, 97 05:18:27 pm

next in thread | previous in thread | raw e-mail | index | archive | help
Rereading this, it could have been confusing...


> > I'm reading the Heidemann's thesis right now (on stackable FS design). He
> > mentions that among others they implemented a compression layer. Did
> > anyone do something similar under FreeBSD? It would be cool to have it,
> > IMHO.
> 
> John has sent the compression code (and some cryptographic code)
  ^^^^
  John Heidemann

> layers to severa people, including myself, with the request that
> we not redistribute the code without prior permission.
> 
> The BSD layering is such that the VM issues are, in some cases,
> hard to overcome (which is why union FS's currently don't work
> in the main line tree).  Any compression (or cryptographic) FS
> would face similar problems, since it would need to maintain
> seperate cache data for the uncompressed (or deencrypted) file
> blocks.
> 
> Actually, you should check with John: he was working on the
                                  ^^^^
                                  John Dyson

> union FS code to make it work with the new VM.


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199707221801.LAA13642>