JFFS2: Difference between revisions

From OLPC
Jump to navigation Jump to search
(Algoritms)
(algoritms)
Line 8: Line 8:
== Algoritms ==
== Algoritms ==
=== Zlib ===
=== Zlib ===
lossless data-compression library,
Lossless data-compression library,
* [http://www.zlib.net/manual.html Manual]
* [http://www.zlib.net/manual.html Manual]
* [http://www.zlib.net/zlib_how.html Examples]
* [http://www.zlib.net/zlib_how.html Examples]
=== rubin ===

=== rtime ==
== Links ==
== Links ==
*[http://en.wikipedia.org/wiki/JFFS2 JFFS2] at wikipedia
*[http://en.wikipedia.org/wiki/JFFS2 JFFS2] at wikipedia

Revision as of 16:59, 13 December 2006

I'd like to see some more info on JFFS2, the compression algorithm (or algorithms) that will be used, and ideally, some data on how well various files might be expected to compress with examples. Some photos, diagrams, xml, python code, etc.


JFFS2 Is the Journalling Flash File System version 2, jffs2 is a log-structured file system for flash memory devices and has support for NAND devices, also Hard links and compresion algoritms like zlib, rubin and rtime. Jffs2 also has a garbage collection algorithm that eliminates unnecessary I/O.

Algoritms

Zlib

Lossless data-compression library,

rubin

= rtime

Links