Hi All,

 

I am comparing the write performance between JFFS2 and YAFFS2 using the program iozone (www.iozone.org), which writes files of various file sizes with various chunk sizes.

 

At 1st glance, JFFS2 looks much better than YAFFS2 :-O, which I can hardly believe! Also, YAFFS2 is very constant over the various file/chunk sizes (positive!).

 

I increased the YAFFS_N_TEMP_BUFFERS in yaffs_guts.h from 6 to 100 and the write performance values changed enormously, which is obvious. Does anyone have experience with tuning the YAFFS caches? Is modifying YAFFS_N_TEMP_BUFFERS the right place to do it?

Any advice is welcome!

 

Thank you,

Peter Voser