Gents,

Here the basic performance measurements for JFFS2 and YAFFS2 as of
5/10/2006 are presented. The measurements were performed on the PNX4008
platform which is a 208 MHz CPU ARM926-based Philips board. The 2k page
flash is the real NAND flash (20MiB partition); the 512b flash is
nandsim (8 MB partition).


    Measurement results

2K page NAND flash
==================

                        Write big file  Write folder    Mount
---------------------+---------------------------------------
YAFFS2               |  123.4 s         93.7 s          0.8 s
JFFS2 w/o summary    |  66.5 s          18.0 s          7.6 s
JFFS2 w/ summary     |  68.0 s          28.9 s          0.6 s

512b page NAND flash
====================

                        Write big file  Write folder    Mount
---------------------+---------------------------------------
YAFFS2, YAFFS1 mode  |  38.8 s          22.5 s          1.2 s
JFFS2 w/o summary    |  68.6 s          16.1 s          0.7 s
JFFS2 w/ summary     |  72.5 s          16.3 s          0.3 s