Logfs: Difference between revisions
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Logfs is a new flash-based file system currently under development. The main author |
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is Jörn Engel. |
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There are early design documents at http://wh.fh-wedel.de/~joern/logfs.pdf. |
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Later additions not covered in that document include: |
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* Block compression, |
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* [[JFFS2]]-style subblock writes in the journal, |
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* Advanced block allocation methods to separate write-once data from write-often data. |
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* Block caching (useful for metadata) |
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* Delta storage - having an on-flash cache of recent changes without updating the wandering tree yet. |
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* Garbage collection algorithm - explained by the author in a [http://mirror.linux.org.au/pub/linux.conf.au/2007/video/talks/91.ogg video] at [http://mirror.linux.org.au/pub/linux.conf.au/2007/video/talks/91.pdf Linux Conference Australia in 2007] |
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The Logfs wiki is located at http://www.logfs.org/logfs/. |
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[[Category:OS]] |
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[[Category:Developers]] |
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[[Category:Software development]] |
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Revision as of 07:01, 17 December 2008
Logfs is a new flash-based file system currently under development. The main author is Jörn Engel.
There are early design documents at http://wh.fh-wedel.de/~joern/logfs.pdf.
Later additions not covered in that document include:
- Block compression,
- JFFS2-style subblock writes in the journal,
- Advanced block allocation methods to separate write-once data from write-often data.
- Block caching (useful for metadata)
- Delta storage - having an on-flash cache of recent changes without updating the wandering tree yet.
- Garbage collection algorithm - explained by the author in a video at Linux Conference Australia in 2007
The Logfs wiki is located at http://www.logfs.org/logfs/.