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⇤ ← Revision 2 as of 2006-01-07 17:36:10 →
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Editor: RadekPodgorny
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Editor: RadekPodgorny
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= unionfs-fuse = = Foreword =
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This is my effort to create a unionfs implementation which is probably slower but way more flexible than the current in-kernel unionfs solution. More info will come soon... This is my effort to create a unionfs filesystem implementation which is probably slower but way more flexible than the current in-kernel unionfs solution. Currently it's almost fully usable, will only minor convenience issues to be fixed...
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attachment:unionfs.c I'm open to patches, suggestions, whatever (at radek@podgorny.cz)...

[[GoogleAd()]]

== Why choose this stuff ==

 * The filesystem has to be mounted after the roots are mounted when using the standard module. With unionfs-fuse, you can mount the roots later and their contents will appear seamlesly
 * You get caching which speeds things up a lot for free
 * You get nice stats (optional)

== Why NOT choose it ==

 * Compared to kernel-space solution we need lots of useless context switches which makes kernel-only solution clear speed-winner

== Usage ==

{{{
unionfs [options] root[:root...] mountpoint
The first argument is a colon separated list of directories to merge

general options:
    -o opt,[opt...] mount options
    -h --help print help
    -V --version print version

UnionFS options:
    -o stats show statistics in the file 'stats' under the mountpoint
}}}

== TODO ==

 * Add support for choice which roots are read-only and which are not
 * Add cache controls
 * Handle writing to /stats intelligently

[[GoogleAd()]]

== Download ==

 * Latest version: 0.15 (released 2006-08-07)
 * Archive location: http://podgorny.cz/unionfs-fuse/releases/

If you want to follow the development closely, see my experimental mercurial repository at:

 * http://hg.podgorny.cz/unionfs-fuse

My older tinyrcs repository is at:

 * http://podgorny.cz/~radek/rep/unionfs-fuse/

(tinyrcs is my currently-under-development revision control system) -> ["TinyRCS"]

Foreword

This is my effort to create a unionfs filesystem implementation which is probably slower but way more flexible than the current in-kernel unionfs solution. Currently it's almost fully usable, will only minor convenience issues to be fixed...

I'm open to patches, suggestions, whatever (at radek@podgorny.cz)...

GoogleAd()

Why choose this stuff

  • The filesystem has to be mounted after the roots are mounted when using the standard module. With unionfs-fuse, you can mount the roots later and their contents will appear seamlesly
  • You get caching which speeds things up a lot for free
  • You get nice stats (optional)

Why NOT choose it

  • Compared to kernel-space solution we need lots of useless context switches which makes kernel-only solution clear speed-winner

Usage

unionfs [options] root[:root...] mountpoint
The first argument is a colon separated list of directories to merge

general options:
    -o opt,[opt...]        mount options
    -h   --help            print help
    -V   --version         print version

UnionFS options:
    -o stats               show statistics in the file 'stats' under the mountpoint

TODO

  • Add support for choice which roots are read-only and which are not
  • Add cache controls
  • Handle writing to /stats intelligently

GoogleAd()

Download

If you want to follow the development closely, see my experimental mercurial repository at:

My older tinyrcs repository is at:

(tinyrcs is my currently-under-development revision control system) -> ["TinyRCS"]